Merge pull request 'feat: immutable/mutable caching patterns with conditional revalidation and stale fallback' (#14) from benvin/immutable-mutable-patterns into master
ci/woodpecker/tag/docker Pipeline was successful

Reviewed-on: #14
This commit was merged in pull request #14.
This commit is contained in:
2026-04-27 11:44:49 +10:00
11 changed files with 818 additions and 316 deletions
-1
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@@ -35,7 +35,6 @@ env/
# Environment variables
.env
remotes.yaml
# Logs
*.log
+118 -113
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@@ -6,10 +6,13 @@ A generic FastAPI-based artifact caching system that downloads and stores files
- **Generic Remote Support**: Works with any HTTP-based file server (GitHub, Gitea, HashiCorp, custom servers)
- **Configuration-Based**: YAML configuration for remotes, patterns, and access control
- **Direct URL API**: Access cached files via clean URLs like `/api/github/owner/repo/path/file.tar.gz`
- **Pattern Filtering**: Regex-based inclusion patterns for security and organization
- **Direct URL API**: Access cached files via clean URLs like `/api/v1/remote/github/owner/repo/path/file.tar.gz`
- **Immutable/Mutable Pattern Model**: Per-remote regex patterns distinguish forever-cached artifacts from TTL-expiring metadata
- **Smart Caching**: Automatic download and cache on first access, serve from cache afterward
- **Conditional Revalidation**: Optional `check_mutable_updates` flag — sends `If-None-Match`/`If-Modified-Since` on expiry; skips re-download on 304
- **Stale-on-Upstream-Error**: Expired mutable files are kept and their TTL refreshed when the backend cannot be reached, so cached data remains available during upstream outages
- **S3 Storage**: MinIO/S3 backend with predictable paths
- **Docker Registry Proxy**: Full Docker Registry HTTP API v2 for transparent container image caching
- **Content-Type Detection**: Automatic MIME type detection for downloads
## Architecture
@@ -71,15 +74,18 @@ The system uses `remotes.yaml` to define remote repositories and access patterns
remotes:
remote-name:
base_url: "https://example.com" # Base URL for the remote
type: "remote" # Type: "remote" or "local"
package: "generic" # Package type: "generic", "alpine", "rpm"
type: "remote" # "remote" or "local"
package: "generic" # "generic", "alpine", "rpm", or "docker"
description: "Human readable description"
include_patterns: # Regex patterns for allowed files
immutable_patterns: # Files cached forever (release binaries, versioned tags)
- "pattern1"
- "pattern2"
cache: # Cache configuration (optional)
file_ttl: 0 # File cache TTL (0 = indefinite)
index_ttl: 300 # Index file TTL in seconds
mutable_patterns: # Files that expire after mutable_ttl (optional)
- "pattern3"
check_mutable_updates: false # Enable conditional HEAD before re-fetching (optional)
cache:
immutable_ttl: 0 # TTL for immutable files (0 = indefinitely)
mutable_ttl: 3600 # TTL in seconds for mutable files
```
### Remote Types
@@ -94,30 +100,30 @@ remotes:
type: "remote"
package: "generic"
description: "GitHub releases and files"
include_patterns:
immutable_patterns:
- "gruntwork-io/terragrunt/.*terragrunt_linux_amd64.*"
- "lxc/incus/.*\\.tar\\.gz$"
- "prometheus/node_exporter/.*/node_exporter-.*\\.linux-amd64\\.tar\\.gz$"
cache:
file_ttl: 0 # Cache files indefinitely
index_ttl: 0 # No index files for generic remotes
immutable_ttl: 0 # Cache files indefinitely
hashicorp-releases:
base_url: "https://releases.hashicorp.com"
github-archive:
base_url: "https://github.com"
type: "remote"
package: "generic"
description: "HashiCorp product releases"
include_patterns:
- "terraform/.*terraform_.*_linux_amd64\\.zip$"
- "vault/.*vault_.*_linux_amd64\\.zip$"
- "consul/.*/consul_.*_linux_amd64\\.zip$"
description: "GitHub repository archive tarballs"
immutable_patterns:
- ".*/archive/refs/tags/.*\\.tar\\.gz$" # tag archives never change
mutable_patterns:
- ".*/archive/refs/heads/main\\.tar\\.gz$" # branch archives can change
check_mutable_updates: true # send If-None-Match on expiry; skip re-download on 304
cache:
file_ttl: 0
index_ttl: 0
immutable_ttl: 0
mutable_ttl: 86400 # re-check branch archives after 1 day
```
#### Package Repository Remotes
For Linux package repositories with index files:
For Linux package repositories:
```yaml
remotes:
@@ -126,23 +132,25 @@ remotes:
type: "remote"
package: "alpine"
description: "Alpine Linux APK package repository"
include_patterns:
- ".*/x86_64/.*\\.apk$" # Only x86_64 packages
immutable_patterns:
- ".*/x86_64/.*\\.apk$" # packages are immutable by content-hash
# APKINDEX.tar.gz is a package-type default mutable file — no mutable_patterns needed
cache:
file_ttl: 0 # Cache packages indefinitely
index_ttl: 7200 # Cache APKINDEX.tar.gz for 2 hours
immutable_ttl: 0
mutable_ttl: 7200 # re-fetch APKINDEX.tar.gz after 2 hours
almalinux:
base_url: "http://mirror.aarnet.edu.au/pub/almalinux"
base_url: "https://mirror.example.com/almalinux"
type: "remote"
package: "rpm"
description: "AlmaLinux RPM package repository"
include_patterns:
immutable_patterns:
- ".*/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
# repomd.xml and repodata/* are package-type defaults
cache:
file_ttl: 0
index_ttl: 7200 # Cache metadata files for 2 hours
immutable_ttl: 0
mutable_ttl: 7200
```
#### Local Repositories
@@ -155,62 +163,45 @@ remotes:
package: "generic"
description: "Local generic file repository"
cache:
file_ttl: 0
index_ttl: 0
immutable_ttl: 0
mutable_ttl: 0
```
### Include Patterns
### Immutable Patterns
Include patterns are regular expressions that control which files can be accessed. Patterns use Python `re.search`, so they match anywhere in the path unless anchored with `^` or `$`. Only files matching at least one pattern are served; all others return HTTP 403.
`immutable_patterns` are regular expressions that control which files can be accessed. Patterns use Python `re.search`, so they match anywhere in the path unless anchored with `^` or `$`. Only files matching at least one pattern are served; all others return HTTP 403.
Matched files are cached with `immutable_ttl` (default 0 = forever). Use these for versioned release artifacts that never change once published.
```yaml
include_patterns:
# Exact project + architecture — most restrictive
immutable_patterns:
- "^gruntwork-io/terragrunt/releases/download/.*/terragrunt_linux_amd64$"
# Any release asset for a project, any version
- "gruntwork-io/terragrunt/.*terragrunt_linux_amd64.*"
# File extension only — allow all files of a given type from any path
- ".*\\.tar\\.gz$"
- ".*\\.rpm$"
- ".*\\.zip$"
# Architecture subtree — allow everything under x86_64/
- ".*/x86_64/.*"
# Combined: architecture + extension
- ".*/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
# Docker image names (used with package: docker remotes)
- "^library/nginx" # nginx official images only
- "^rancher/" # all rancher/* images
- "^rancher/rke2-runtime" # specific image
# Repodata directories — allow all metadata for an RPM repo
- ".*/repodata/.*$"
```
**Security note**: Omitting `include_patterns` entirely allows all files from that remote. Index files (e.g. `APKINDEX.tar.gz`, `repomd.xml`, tag manifests) always bypass pattern enforcement — they are served unconditionally so clients can discover available packages.
**Security note**: Omitting `immutable_patterns` entirely allows all files from that remote.
### Index Patterns
### Mutable Patterns
Index patterns identify repository metadata files. Index files get special treatment:
- **Always served** regardless of `include_patterns`
- **Cached with `index_ttl`** instead of `file_ttl`
- **Automatically refreshed** when the TTL expires — the cached copy is evicted and re-fetched on next request
`mutable_patterns` identify files that change over time (index files, branch archives, metadata). Mutable files:
- **Always served** regardless of `immutable_patterns`
- **Cached with `mutable_ttl`** and re-fetched from upstream when the TTL expires
- **Kept stale** when the upstream backend is unreachable — TTL is refreshed automatically so the cached copy remains available until the backend recovers (see below)
Built-in defaults per package type:
Built-in defaults per package type (no configuration needed):
| Package type | Built-in index patterns |
| Package type | Built-in mutable patterns |
|---|---|
| `alpine` | `APKINDEX\.tar\.gz$` |
| `rpm` | `repomd\.xml$`, `repodata/` metadata (xml, sqlite, yaml, asc, txt variants), `Packages\.gz$` |
| `docker` | Tag manifests (non-digest refs), `/tags/list` |
| `generic` | *(none)* |
Use `index_patterns` to add extra patterns on top of the defaults. Duplicates are ignored automatically.
Use `mutable_patterns` to add extra patterns on top of the defaults. Duplicates are ignored automatically.
```yaml
remotes:
@@ -218,60 +209,74 @@ remotes:
base_url: "https://charts.example.com"
type: "remote"
package: "generic"
include_patterns:
- ".*\\.tgz$" # chart archives
index_patterns:
- "index\\.yaml$" # Helm repo index — re-fetched on every TTL expiry
immutable_patterns:
- ".*\\.tgz$"
mutable_patterns:
- "index\\.yaml$" # Helm repo index
cache:
file_ttl: 0
index_ttl: 600 # re-check the index every 10 minutes
immutable_ttl: 0
mutable_ttl: 600 # re-check the index every 10 minutes
apt-mirror:
base_url: "https://apt.example.com"
type: "remote"
package: "generic"
include_patterns:
immutable_patterns:
- ".*\\.deb$"
index_patterns:
- "InRelease$" # signed APT release file
- "Release$" # unsigned APT release file
- "Packages\\.gz$" # compressed package list
mutable_patterns:
- "InRelease$"
- "Release$"
- "Packages\\.gz$"
- "Packages\\.xz$"
cache:
file_ttl: 0
index_ttl: 3600 # hourly index refresh
almalinux-with-extras:
base_url: "https://mirror.example.com/almalinux"
type: "remote"
package: "rpm" # inherits repomd.xml + repodata/* defaults
include_patterns:
- ".*/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
index_patterns:
- "comps\\.xml$" # optional group metadata (adds to rpm defaults)
cache:
file_ttl: 0
index_ttl: 7200
immutable_ttl: 0
mutable_ttl: 3600
```
Pattern matching uses `re.search`, so `"index\\.yaml$"` matches `/stable/index.yaml` and `/index.yaml`. Anchor with `^` to restrict to the path root.
### Conditional Revalidation (`check_mutable_updates`)
By default, when a mutable file's TTL expires the cached copy is evicted and the full file is re-downloaded on the next request. Setting `check_mutable_updates: true` on a remote enables a cheaper conditional check first:
1. On TTL expiry, a `HEAD` request is sent to the upstream with `If-None-Match` / `If-Modified-Since` headers (populated from the original download).
2. If the upstream replies **304 Not Modified**, the TTL is refreshed in place — no re-download, no S3 traffic.
3. If the upstream replies **200**, the cached copy is evicted and re-downloaded normally.
This only applies to user-defined `mutable_patterns`. Package-type built-in patterns (APKINDEX, repomd.xml, Docker manifests) are always re-fetched unconditionally.
```yaml
remotes:
github-archive:
base_url: "https://github.com"
type: "remote"
package: "generic"
immutable_patterns:
- ".*/archive/refs/tags/.*\\.tar\\.gz$"
mutable_patterns:
- ".*/archive/refs/heads/main\\.tar\\.gz$"
check_mutable_updates: true
cache:
immutable_ttl: 0
mutable_ttl: 86400
```
### Stale-on-Upstream-Error
When a mutable file's TTL expires and the upstream backend **cannot be reached** (connection refused, DNS failure, timeout), the cached copy is **kept and its TTL refreshed** rather than evicted. This means:
- RPM repodata, Alpine indexes, branch archives, and other mutable files remain available during upstream outages.
- Clients continue to receive the last-known-good copy without errors.
- Once the backend recovers and the refreshed TTL next expires, normal eviction resumes.
This behaviour is automatic and requires no configuration. Only network-level failures trigger it — HTTP error responses (404, 503, etc.) are treated as the backend being reachable and proceed with normal expiry.
### Cache Configuration
Control how long different file types are cached:
```yaml
cache:
file_ttl: 0 # Regular files (0 = cache indefinitely)
index_ttl: 300 # Index files like APKINDEX.tar.gz (seconds)
immutable_ttl: 0 # Immutable files (0 = cache indefinitely, rarely changed)
mutable_ttl: 3600 # Mutable files — TTL in seconds before re-fetch is attempted
```
**Index Files**: Repository metadata files that change frequently:
- Alpine: `APKINDEX.tar.gz`
- RPM: `repomd.xml`, `*-primary.xml.gz`, etc.
- These are automatically detected and use `index_ttl`
### Environment Variables
All runtime configuration comes from environment variables:
@@ -351,26 +356,26 @@ data:
type: "remote"
package: "generic"
description: "GitHub releases and files"
include_patterns:
immutable_patterns:
- "gruntwork-io/terragrunt/.*terragrunt_linux_amd64.*"
- "lxc/incus/.*\\.tar\\.gz$"
- "prometheus/node_exporter/.*/node_exporter-.*\\.linux-amd64\\.tar\\.gz$"
cache:
file_ttl: 0
index_ttl: 0
immutable_ttl: 0
mutable_ttl: 0
hashicorp-releases:
base_url: "https://releases.hashicorp.com"
type: "remote"
package: "generic"
description: "HashiCorp product releases"
include_patterns:
immutable_patterns:
- "terraform/.*terraform_.*_linux_amd64\\.zip$"
- "vault/.*vault_.*_linux_amd64\\.zip$"
- "consul/.*/consul_.*_linux_amd64\\.zip$"
cache:
file_ttl: 0
index_ttl: 0
immutable_ttl: 0
mutable_ttl: 0
```
### 3. Secret for Environment Variables
@@ -778,8 +783,8 @@ remotes:
username: "your-dockerhub-username"
password: "your-dockerhub-token" # PAT with read scope
cache:
file_ttl: 0
index_ttl: 300
immutable_ttl: 0
mutable_ttl: 300
```
A pull of `nginx:latest` becomes `/v2/dockerhub/library/nginx/manifests/latest` on the artifact API.
@@ -804,8 +809,8 @@ remotes:
username: "your-github-username"
password: "ghp_your_github_pat" # read:packages scope required
cache:
file_ttl: 0
index_ttl: 300
immutable_ttl: 0
mutable_ttl: 300
```
A pull of `ghcr.io/rancher/rke2-runtime:v1.30.0-rke2r1` becomes `/v2/ghcr/rancher/rke2-runtime/manifests/v1.30.0-rke2r1`.
@@ -844,7 +849,7 @@ Each entry needs a matching remote in `remotes.yaml` using the name from the rew
#### Restricting which images are cached
Use `include_patterns` on the remote to allow only specific images through the proxy. Requests for images not matching any pattern return HTTP 403 to the node.
Use `immutable_patterns` on the remote to allow only specific images through the proxy. Requests for images not matching any pattern return HTTP 403 to the node.
```yaml
remotes:
@@ -852,17 +857,17 @@ remotes:
base_url: "https://registry-1.docker.io"
type: "remote"
package: "docker"
include_patterns:
immutable_patterns:
- "^library/nginx" # official nginx only
- "^library/redis" # official redis only
- "^rancher/" # all rancher images
- "^grafana/grafana" # specific image
cache:
file_ttl: 0
index_ttl: 300
immutable_ttl: 0
mutable_ttl: 300
```
Omit `include_patterns` to allow all images from that registry.
Omit `immutable_patterns` to allow all images from that registry.
#### TLS configuration
+3 -3
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@@ -6,12 +6,12 @@ services:
context: .
dockerfile: Dockerfile
args:
- VERSION=dev
- VERSION=2.2.2.dev0
ports:
- "8000:8000"
volumes:
- ./remotes.yaml:/app/remotes.yaml:ro
- ./ca-bundle.pem:/app/ca-bundle.pem:ro
- ./remotes.yaml:/app/remotes.yaml:ro,z
- ./ca-bundle.pem:/app/ca-bundle.pem:ro,z
environment:
- CONFIG_PATH=/app/remotes.yaml
- DBHOST=postgres
+203
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@@ -0,0 +1,203 @@
# Example remotes configuration — copy and adapt for your environment.
#
# immutable_patterns: artifacts cached forever (e.g. release binaries, versioned tags).
# mutable_patterns: artifacts that expire after cache.mutable_ttl seconds and are
# re-fetched from upstream on next request (e.g. index files,
# branch archives). Defaults to the package-type built-ins when
# not set (APKINDEX, repomd.xml, Docker manifests, etc.).
# cache:
# immutable_ttl: TTL for immutable files (0 = forever, rarely needed to change).
# mutable_ttl: TTL in seconds for mutable files. Omit to use the default (3600).
#
# WARNING: this file may contain credentials — do not commit real values.
#
# Global configuration
#s3:
# endpoint: "localhost:9000"
# access_key: "minioadmin"
# secret_key: "minioadmin"
# bucket: "artifacts"
# secure: false
#
#redis:
# url: "redis://localhost:6379/0"
#
#database:
# url: "postgresql://artifacts:artifacts123@localhost:5432/artifacts"
#
remotes:
github:
base_url: "https://github.com"
type: "remote"
package: "generic"
description: "GitHub releases and files"
immutable_patterns:
- "gruntwork-io/terragrunt/.*terragrunt_linux_amd64.*"
- "lxc/incus/.*\\.tar\\.gz$"
- "prometheus/node_exporter/.*/node_exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "VictoriaMetrics/VictoriaMetrics/.*/vmutils-linux-amd64-.*\\.tar\\.gz$"
- "VictoriaMetrics/VictoriaMetrics/.*/victoria-metrics-linux-amd64-.*-cluster\\.tar\\.gz$"
- "VictoriaMetrics/VictoriaMetrics/.*/victoria-logs-linux-amd64-.*\\.tar\\.gz$"
- "VictoriaMetrics/VictoriaMetrics/.*/vlutils-linux-amd64-.*\\.tar\\.gz$"
- "prometheus-community/bind_exporter/.*/bind_exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "prometheus-community/pgbouncer_exporter/.*/pgbouncer_exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "prometheus-community/postgres_exporter/.*/postgres_exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "onedr0p/exportarr/.*/exportarr_.*_linux_amd64\\.tar\\.gz$"
- "tynany/frr_exporter/.*/frr_exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "camptocamp/prometheus-puppetdb-exporter/.*/prometheus-puppetdb-exporter-.*\\.linux-amd64\\.tar\\.gz$"
- "grafana/jsonnet-language-server/.*/jsonnet-language-server_.*_linux_amd64$"
- "helmfile/helmfile/.*/helmfile_.*_linux_amd64\\.tar\\.gz$"
- "helmfile/vals/.*/vals_.*_linux_amd64\\.tar\\.gz$"
- "openbao/openbao-plugins/.*/openbao-plugin-secrets-consul_linux_amd64_.*\\.tar\\.gz$"
- "openbao/openbao-plugins/.*/openbao-plugin-secrets-nomad_linux_amd64_.*\\.tar\\.gz$"
- "apple/foundationdb/.*/libfdb_c\\.x86_64\\.so$"
- "stalwartlabs/stalwart/.*/stalwart-cli-x86_64-unknown-linux-gnu\\.tar\\.gz$"
- "stalwartlabs/stalwart/.*/stalwart-foundationdb-x86_64-unknown-linux-gnu\\.tar\\.gz$"
- "stalwartlabs/stalwart/.*/stalwart-x86_64-unknown-linux-gnu\\.tar\\.gz$"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 0
github-archive:
base_url: "https://github.com"
type: "remote"
package: "generic"
description: "GitHub repository archive tarballs"
immutable_patterns:
# Tag archives are immutable — a tag never changes
- ".*/archive/refs/tags/.*\\.tar\\.gz$"
mutable_patterns:
# Branch archives can change on every push
- ".*/archive/refs/heads/main\\.tar\\.gz$"
- ".*/archive/refs/heads/master\\.tar\\.gz$"
# Before re-downloading an expired branch archive, check whether it has
# actually changed (304 Not Modified → just refresh the TTL, no transfer).
# Only applies to user-defined mutable_patterns, not package-type defaults.
check_mutable_updates: true
cache:
immutable_ttl: 0 # Tag archives cached indefinitely
mutable_ttl: 86400 # Branch archives refreshed after 1 day
gitea-dl:
base_url: "https://dl.gitea.com"
type: "remote"
package: "generic"
description: "Gitea download site"
immutable_patterns:
- "act_runner/.*/act_runner-.*-linux-amd64$"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 0
hashicorp-releases:
base_url: "https://releases.hashicorp.com"
type: "remote"
package: "generic"
description: "HashiCorp product releases"
immutable_patterns:
- "terraform/.*terraform_.*_linux_amd64\\.zip$"
- "terraform/.*terraform_.*_windows_amd64\\.zip$"
- "terraform/.*terraform_.*_darwin_amd64\\.zip$"
- "vault/.*vault_.*_linux_amd64\\.zip$"
- "vault/.*vault_.*_windows_amd64\\.zip$"
- "vault/.*vault_.*_darwin_amd64\\.zip$"
- "consul-cni/.*/consul-cni_.*_linux_amd64\\.zip$"
- "consul/.*/consul_.*_linux_amd64\\.zip$"
- "nomad-autoscaler/.*/nomad-autoscaler_.*_linux_amd64\\.zip$"
- "nomad/.*/nomad_.*_linux_amd64\\.zip$"
- "packer/.*/packer_.*_linux_amd64\\.zip$"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 0
alpine:
base_url: "https://dl-cdn.alpinelinux.org"
type: "remote"
package: "alpine"
description: "Alpine Linux APK package repository"
immutable_patterns:
- ".*/x86_64/.*\\.apk$"
# check_mutable_updates not set: APKINDEX.tar.gz is a package-type default
# and is always re-fetched on expiry — conditional checks are skipped for
# built-in mutable patterns regardless of this flag.
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 7200 # Index files (APKINDEX.tar.gz) cached for 2 hours
almalinux:
base_url: "https://gsl-syd.mm.fcix.net/almalinux"
type: "remote"
package: "rpm"
description: "AlmaLinux RPM package repository"
immutable_patterns:
- ".*/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
- ".*/repodata/.*$"
- ".*\\.rpm$" # Allow all RPM files
# repomd.xml / repodata are package-type defaults — always re-fetched on
# expiry. check_mutable_updates would only apply to any custom
# mutable_patterns added here.
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 7200 # Metadata files cached for 2 hours
epel:
base_url: "http://mirror.aarnet.edu.au/pub/epel"
type: "remote"
package: "rpm"
description: "EPEL (Extra Packages for Enterprise Linux)"
immutable_patterns:
- "8/Everything/x86_64/.*\\.rpm$"
- "9/Everything/x86_64/.*\\.rpm$"
- "10/Everything/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
- ".*/repodata/.*$"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 7200 # Metadata files cached for 2 hours
fedora:
base_url: "https://gsl-syd.mm.fcix.net/fedora/linux"
type: "remote"
package: "rpm"
description: "Fedora Linux RPM package repository"
immutable_patterns:
- "releases/.*/Everything/x86_64/.*\\.rpm$"
- "updates/.*/Everything/x86_64/.*\\.rpm$"
- "development/.*/Everything/x86_64/.*\\.rpm$"
- ".*/noarch/.*\\.rpm$"
- "updates/.*/Everything/x86_64/repodata/.*$"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 300 # Metadata files cached for 5 minutes
ghcr:
base_url: "https://ghcr.io"
type: "remote"
package: "docker"
description: "GitHub Container Registry"
# username: "your-github-username"
# password: "your-github-pat" # needs read:packages scope
# Docker manifest/tag-list patterns are package-type defaults — always
# re-fetched on expiry. check_mutable_updates only applies to any custom
# mutable_patterns you add (e.g. a metadata endpoint).
cache:
immutable_ttl: 0
mutable_ttl: 300
dockerhub:
base_url: "https://registry-1.docker.io"
type: "remote"
package: "docker"
description: "Docker Hub registry"
cache:
immutable_ttl: 0
mutable_ttl: 300
local-generic:
type: "local"
package: "generic"
description: "Local generic file repository"
cache:
immutable_ttl: 0 # Files cached indefinitely
mutable_ttl: 0
+44 -9
View File
@@ -19,18 +19,20 @@ class RedisCache:
self.client = None
self.available = False
def is_index_file(self, file_path: str, patterns: list[str] | None = None) -> bool:
"""Return True if file_path matches any of the index patterns."""
def is_mutable_file(self, file_path: str, patterns: list[str] | None = None) -> bool:
"""Return True if file_path matches any of the mutable patterns."""
if patterns is None:
patterns = []
return any(re.search(p, file_path) for p in patterns)
def get_index_cache_key(self, remote_name: str, path: str) -> str:
"""Generate cache key for index files"""
return f"index:{remote_name}:{hashlib.sha256(path.encode()).hexdigest()[:16]}"
def is_index_valid(self, remote_name: str, path: str, ttl_override: int = None) -> bool:
"""Check if index file is still valid (not expired)"""
def get_mutable_meta_key(self, remote_name: str, path: str) -> str:
return f"mutable:meta:{remote_name}:{hashlib.sha256(path.encode()).hexdigest()[:16]}"
def is_index_valid(self, remote_name: str, path: str) -> bool:
"""Check if mutable file is still within its TTL window."""
if not self.available:
return False
@@ -41,7 +43,7 @@ class RedisCache:
return False
def mark_index_cached(self, remote_name: str, path: str, ttl: int = 300) -> None:
"""Mark index file as cached with TTL"""
"""Set or refresh the TTL key for a mutable file."""
if not self.available:
return
@@ -51,13 +53,45 @@ class RedisCache:
except Exception:
pass
def store_mutable_meta(self, remote_name: str, path: str, etag: str | None, last_modified: str | None) -> None:
"""Persist ETag and Last-Modified for future conditional requests."""
if not self.available:
return
data = {}
if etag:
data["etag"] = etag
if last_modified:
data["last_modified"] = last_modified
if not data:
return
try:
self.client.hset(self.get_mutable_meta_key(remote_name, path), mapping=data)
except Exception:
pass
def get_mutable_meta(self, remote_name: str, path: str) -> dict:
"""Return stored ETag/Last-Modified for a mutable file, or {}."""
if not self.available:
return {}
try:
return self.client.hgetall(self.get_mutable_meta_key(remote_name, path)) or {}
except Exception:
return {}
def delete_mutable_meta(self, remote_name: str, path: str) -> None:
if not self.available:
return
try:
self.client.delete(self.get_mutable_meta_key(remote_name, path))
except Exception:
pass
def cleanup_expired_index(self, storage, remote_name: str, path: str) -> None:
"""Remove expired index from S3 storage"""
"""Remove an expired mutable file from S3 and clear its Redis meta."""
if not self.available:
return
try:
# Construct the URL the same way as in the main flow
import os
from .config import ConfigManager
@@ -69,9 +103,10 @@ class RedisCache:
if remote_config:
base_url = remote_config.get("base_url")
if base_url:
# Use hierarchical path-based key (same as cache_single_artifact)
s3_key = storage.get_object_key(remote_name, path)
if storage.exists(s3_key):
storage.client.delete_object(Bucket=storage.bucket, Key=s3_key)
except Exception:
pass
self.delete_mutable_meta(remote_name, path)
+17 -15
View File
@@ -3,7 +3,7 @@ import os
import yaml
_PACKAGE_INDEX_PATTERNS: dict[str, list[str]] = {
_PACKAGE_MUTABLE_PATTERNS: dict[str, list[str]] = {
"alpine": [
r"APKINDEX\.tar\.gz$",
],
@@ -55,26 +55,21 @@ class ConfigManager:
self._check_reload()
return self.config.get("remotes", {}).get(remote_name)
def get_repository_patterns(self, remote_name: str, repo_path: str) -> list:
def get_immutable_patterns(self, remote_name: str, repo_path: str = "") -> list[str]:
remote_config = self.get_remote_config(remote_name)
if not remote_config:
return []
repositories = remote_config.get("repositories", {})
# Handle both dict (GitHub style) and list (Alpine style) repositories
if isinstance(repositories, dict):
repo_config = repositories.get(repo_path)
if repo_config:
patterns = repo_config.get("include_patterns", [])
patterns = repo_config.get("immutable_patterns", [])
else:
patterns = remote_config.get("include_patterns", [])
elif isinstance(repositories, list):
# For Alpine, repositories is just a list of allowed repo names
# Pattern matching is handled by the main include_patterns
patterns = remote_config.get("include_patterns", [])
patterns = remote_config.get("immutable_patterns", [])
else:
patterns = remote_config.get("include_patterns", [])
patterns = remote_config.get("immutable_patterns", [])
return patterns
@@ -129,18 +124,25 @@ class ConfigManager:
db_url = f"postgresql://{db_user}:{db_pass}@{db_host}:{db_port}/{db_name}"
return {"url": db_url}
def get_index_patterns(self, remote_name: str) -> list[str]:
"""Return index-file patterns for a remote.
def get_user_mutable_patterns(self, remote_name: str) -> list[str]:
"""Return only user-configured mutable_patterns, excluding package-type defaults."""
remote_config = self.get_remote_config(remote_name)
if not remote_config:
return []
return remote_config.get("mutable_patterns", [])
def get_mutable_patterns(self, remote_name: str) -> list[str]:
"""Return mutable-file patterns for a remote (TTL is configured per-remote in cache.index_ttl).
Merges the package-level defaults with any extra patterns listed under
``index_patterns`` in the remote's config.
``mutable_patterns`` in the remote's config.
"""
remote_config = self.get_remote_config(remote_name)
if not remote_config:
return []
package = remote_config.get("package", "generic")
defaults = _PACKAGE_INDEX_PATTERNS.get(package, [])
extra = remote_config.get("index_patterns", [])
defaults = _PACKAGE_MUTABLE_PATTERNS.get(package, [])
extra = remote_config.get("mutable_patterns", [])
return defaults + [p for p in extra if p not in defaults]
def get_cache_config(self, remote_name: str) -> dict:
+103 -31
View File
@@ -32,6 +32,10 @@ class ArtifactRequest(BaseModel):
include_pattern: str
class UpstreamUnreachable(Exception):
"""Raised when the upstream backend cannot be contacted (network or timeout error)."""
# Configure logging
logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s")
logger = logging.getLogger(__name__)
@@ -87,8 +91,10 @@ def flush_cache(
if cache_type in ["all", "index"]:
if remote:
patterns.append(f"index:{remote}:*")
patterns.append(f"mutable:meta:{remote}:*")
else:
patterns.append("index:*")
patterns.append("mutable:meta:*")
if cache_type in ["all", "metrics"]:
if remote:
@@ -163,13 +169,13 @@ async def construct_remote_url(remote_name: str, path: str) -> str:
async def check_artifact_patterns(remote_name: str, repo_path: str, file_path: str, full_path: str) -> bool:
# First check if this is an index file - always allow index files
index_patterns = config.get_index_patterns(remote_name)
if cache.is_index_file(file_path, index_patterns) or cache.is_index_file(full_path, index_patterns):
# Mutable files (index files) are always allowed through
mutable_patterns = config.get_mutable_patterns(remote_name)
if cache.is_mutable_file(file_path, mutable_patterns) or cache.is_mutable_file(full_path, mutable_patterns):
return True
# Then check basic include patterns
patterns = config.get_repository_patterns(remote_name, repo_path)
# Check immutable include patterns
patterns = config.get_immutable_patterns(remote_name, repo_path)
if not patterns:
return True # Allow all if no patterns configured
@@ -183,7 +189,6 @@ async def check_artifact_patterns(remote_name: str, repo_path: str, file_path: s
if not pattern_matched:
return False
# All remotes now use pattern-based filtering only - no additional checks needed
return True
@@ -241,12 +246,80 @@ async def cache_single_artifact(url: str, remote_name: str, path: str) -> dict:
"storage_path": storage_path,
"size": len(response.content),
"status": "cached",
"etag": response.headers.get("ETag"),
"last_modified": response.headers.get("Last-Modified"),
}
except Exception as e:
return {"url": url, "status": "error", "error": str(e)}
async def _upstream_reachable(url: str) -> bool:
"""HEAD with a short timeout. Returns False only on network/timeout errors."""
try:
async with httpx.AsyncClient(follow_redirects=True) as client:
await client.head(url, timeout=10.0)
return True
except (httpx.NetworkError, httpx.TimeoutException):
return False
except Exception:
return True # 4xx/5xx means backend is up
async def check_upstream_changed(remote_url: str, remote_name: str, path: str) -> bool:
"""Conditional HEAD against upstream. Returns False only on a definitive 304.
Raises UpstreamUnreachable if the backend cannot be contacted."""
meta = cache.get_mutable_meta(remote_name, path)
if not meta:
return True
headers = {}
if meta.get("etag"):
headers["If-None-Match"] = meta["etag"]
if meta.get("last_modified"):
headers["If-Modified-Since"] = meta["last_modified"]
if not headers:
return True
try:
async with httpx.AsyncClient(follow_redirects=True) as client:
response = await client.head(remote_url, headers=headers)
return response.status_code != 304
except (httpx.NetworkError, httpx.TimeoutException) as exc:
raise UpstreamUnreachable(str(exc)) from exc
async def handle_expired_mutable(remote_name: str, path: str, remote_url: str) -> bool:
"""Handle an expired mutable file. Returns True if the cached copy is still valid."""
mutable_ttl = config.get_cache_config(remote_name).get("mutable_ttl", 3600)
remote_cfg = config.get_remote_config(remote_name) or {}
check_updates = remote_cfg.get("check_mutable_updates", False)
user_mutable = check_updates and cache.is_mutable_file(path, config.get_user_mutable_patterns(remote_name))
if user_mutable:
try:
changed = await check_upstream_changed(remote_url, remote_name, path)
except UpstreamUnreachable:
cache.mark_index_cached(remote_name, path, mutable_ttl)
logger.warning(f"Mutable STALE (backend unreachable): {remote_name}/{path} - TTL extended ({mutable_ttl}s)")
return True
if not changed:
cache.mark_index_cached(remote_name, path, mutable_ttl)
logger.info(f"Mutable file UNCHANGED: {remote_name}/{path} - TTL refreshed ({mutable_ttl}s)")
return True
logger.info(f"Mutable file CHANGED: {remote_name}/{path} - re-downloading")
else:
if not await _upstream_reachable(remote_url):
cache.mark_index_cached(remote_name, path, mutable_ttl)
logger.warning(f"Mutable STALE (backend unreachable): {remote_name}/{path} - TTL extended ({mutable_ttl}s)")
return True
logger.info(f"Mutable file EXPIRED: {remote_name}/{path} - removing from cache")
cache.cleanup_expired_index(storage, remote_name, path)
return False
@app.get("/api/v1/remote/{remote_name}/{path:path}")
async def get_artifact(remote_name: str, path: str):
# Check if remote is configured
@@ -297,17 +370,14 @@ async def get_artifact(remote_name: str, path: str):
if not storage.exists(cached_key):
cached_key = None
# For index files, check Redis TTL validity
# For mutable files, check Redis TTL validity
filename = os.path.basename(path)
is_index = cache.is_index_file(path, config.get_index_patterns(remote_name))
is_mutable = cache.is_mutable_file(path, config.get_mutable_patterns(remote_name))
if cached_key and is_index:
# Index file exists, but check if it's still valid
if cached_key and is_mutable:
if not cache.is_index_valid(remote_name, path):
# Index has expired, remove it from S3
logger.info(f"Index EXPIRED: {remote_name}/{path} - removing from cache")
cache.cleanup_expired_index(storage, remote_name, path)
cached_key = None # Force re-download
if not await handle_expired_mutable(remote_name, path, remote_url):
cached_key = None
if cached_key:
# Return cached artifact
@@ -359,13 +429,14 @@ async def get_artifact(remote_name: str, path: str):
logger.error(f"Cache ADD FAILED: {remote_name}/{path} - {result['error']}")
raise HTTPException(status_code=502, detail=f"Failed to fetch artifact: {result['error']}")
# Mark index files as cached in Redis if this was a new download
if result["status"] == "cached" and is_index:
# Get TTL from remote config
# Mark mutable files as cached in Redis with TTL
if result["status"] == "cached" and is_mutable:
cache_config = config.get_cache_config(remote_name)
index_ttl = cache_config.get("index_ttl", 300) # Default 5 minutes
cache.mark_index_cached(remote_name, path, index_ttl)
logger.info(f"Index file cached with TTL: {remote_name}/{path} (ttl: {index_ttl}s)")
mutable_ttl = cache_config.get("mutable_ttl", 3600)
cache.mark_index_cached(remote_name, path, mutable_ttl)
logger.info(f"Mutable file cached with TTL: {remote_name}/{path} (ttl: {mutable_ttl}s)")
if result.get("etag") or result.get("last_modified"):
cache.store_mutable_meta(remote_name, path, result.get("etag"), result.get("last_modified"))
# Now return the cached artifact
try:
@@ -424,8 +495,8 @@ async def docker_v2_proxy(request: Request, remote_name: str, path: str):
if remote_config.get("package") != "docker":
raise HTTPException(status_code=400, detail=f"Remote '{remote_name}' is not a docker remote")
# Check include_patterns against the image name (e.g. "library/nginx")
patterns = config.get_repository_patterns(remote_name, "")
# Check immutable_patterns against the image name (e.g. "library/nginx")
patterns = config.get_immutable_patterns(remote_name, "")
if patterns:
path_parts = path.split("/")
image_name = "/".join(path_parts[:2]) if len(path_parts) >= 2 else path
@@ -439,24 +510,25 @@ async def docker_v2_proxy(request: Request, remote_name: str, path: str):
if not storage.exists(cached_key):
cached_key = None
is_index = cache.is_index_file(path, config.get_index_patterns(remote_name))
is_mutable = cache.is_mutable_file(path, config.get_mutable_patterns(remote_name))
if cached_key and is_index:
if cached_key and is_mutable:
if not cache.is_index_valid(remote_name, path):
logger.info(f"Index EXPIRED: {remote_name}/{path} - removing from cache")
cache.cleanup_expired_index(storage, remote_name, path)
cached_key = None
if not await handle_expired_mutable(remote_name, path, remote_url):
cached_key = None
if not cached_key:
logger.info(f"Cache MISS: {remote_name}/{path} - fetching from remote: {remote_url}")
result = await cache_single_artifact(remote_url, remote_name, path)
if result["status"] == "error":
raise HTTPException(status_code=502, detail=f"Failed to fetch: {result['error']}")
if result["status"] == "cached" and is_index:
if result["status"] == "cached" and is_mutable:
cache_config = config.get_cache_config(remote_name)
index_ttl = cache_config.get("index_ttl", 300)
cache.mark_index_cached(remote_name, path, index_ttl)
logger.info(f"Index file cached with TTL: {remote_name}/{path} (ttl: {index_ttl}s)")
mutable_ttl = cache_config.get("mutable_ttl", 3600)
cache.mark_index_cached(remote_name, path, mutable_ttl)
logger.info(f"Mutable file cached with TTL: {remote_name}/{path} (ttl: {mutable_ttl}s)")
if result.get("etag") or result.get("last_modified"):
cache.store_mutable_meta(remote_name, path, result.get("etag"), result.get("last_modified"))
artifact_data = storage.download_object(storage.get_object_key(remote_name, path))
+20 -12
View File
@@ -22,47 +22,55 @@ TEST_REMOTES = {
"base_url": "https://dl-cdn.alpinelinux.org",
"type": "remote",
"package": "alpine",
"include_patterns": [".*/x86_64/.*\\.apk$"],
"cache": {"file_ttl": 0, "index_ttl": 3600},
"immutable_patterns": [".*/x86_64/.*\\.apk$"],
"cache": {"immutable_ttl": 0, "mutable_ttl": 3600},
},
"rpm-test": {
"base_url": "https://example.com/rpm",
"type": "remote",
"package": "rpm",
"include_patterns": [".*/x86_64/.*\\.rpm$", ".*/repodata/.*$"],
"cache": {"file_ttl": 0, "index_ttl": 3600},
"immutable_patterns": [".*/x86_64/.*\\.rpm$", ".*/repodata/.*$"],
"cache": {"immutable_ttl": 0, "mutable_ttl": 3600},
},
"docker-test": {
"base_url": "https://registry.example.com",
"type": "remote",
"package": "docker",
"cache": {"file_ttl": 0, "index_ttl": 300},
"cache": {"immutable_ttl": 0, "mutable_ttl": 300},
},
"docker-restricted": {
"base_url": "https://registry.example.com",
"type": "remote",
"package": "docker",
"include_patterns": ["^library/nginx"],
"cache": {"file_ttl": 0, "index_ttl": 300},
"immutable_patterns": ["^library/nginx"],
"cache": {"immutable_ttl": 0, "mutable_ttl": 300},
},
"generic-test": {
"base_url": "https://releases.example.com",
"type": "remote",
"package": "generic",
"include_patterns": [".*\\.tar\\.gz$"],
"cache": {"file_ttl": 0, "index_ttl": 0},
"immutable_patterns": [".*\\.tar\\.gz$"],
"cache": {"immutable_ttl": 0, "mutable_ttl": 0},
},
"custom-index-test": {
"base_url": "https://example.com",
"type": "remote",
"package": "generic",
"index_patterns": ["metadata\\.json$"],
"cache": {"file_ttl": 0, "index_ttl": 600},
"mutable_patterns": ["metadata\\.json$"],
"cache": {"immutable_ttl": 0, "mutable_ttl": 600},
},
"check-mutable-test": {
"base_url": "https://example.com",
"type": "remote",
"package": "generic",
"mutable_patterns": ["metadata\\.json$"],
"check_mutable_updates": True,
"cache": {"immutable_ttl": 0, "mutable_ttl": 600},
},
"local-test": {
"type": "local",
"package": "generic",
"cache": {"file_ttl": 0, "index_ttl": 0},
"cache": {"immutable_ttl": 0, "mutable_ttl": 0},
},
}
}
+109 -61
View File
@@ -1,4 +1,4 @@
"""Tests for RedisCache, focusing on is_index_file with configurable patterns."""
"""Tests for RedisCache, focusing on is_mutable_file with configurable patterns."""
import hashlib
from unittest.mock import ANY, MagicMock, patch
@@ -6,7 +6,7 @@ from unittest.mock import ANY, MagicMock, patch
import pytest
from artifactapi.cache import RedisCache
from artifactapi.config import _PACKAGE_INDEX_PATTERNS
from artifactapi.config import _PACKAGE_MUTABLE_PATTERNS
@pytest.fixture
@@ -38,139 +38,139 @@ def cache_with_redis(mock_redis_client):
# ---------------------------------------------------------------------------
# is_index_file — alpine patterns
# is_mutable_file — alpine patterns
# ---------------------------------------------------------------------------
class TestIsIndexFileAlpine:
class TestIsMutableFileAlpine:
def test_apkindex_tarball_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert bare_cache.is_index_file("alpine/v3.18/x86_64/APKINDEX.tar.gz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert bare_cache.is_mutable_file("alpine/v3.18/x86_64/APKINDEX.tar.gz", patterns)
def test_nested_apkindex_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert bare_cache.is_index_file("mirrors/dl-cdn/alpine/v3.19/community/x86_64/APKINDEX.tar.gz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert bare_cache.is_mutable_file("mirrors/dl-cdn/alpine/v3.19/community/x86_64/APKINDEX.tar.gz", patterns)
def test_apk_package_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert not bare_cache.is_index_file("alpine/v3.18/x86_64/musl-1.2.4-r2.apk", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert not bare_cache.is_mutable_file("alpine/v3.18/x86_64/musl-1.2.4-r2.apk", patterns)
def test_random_tarball_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert not bare_cache.is_index_file("some/path/archive.tar.gz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert not bare_cache.is_mutable_file("some/path/archive.tar.gz", patterns)
def test_apkindex_signature_file_is_not_index(self, bare_cache):
# Signature file adjacent to the index should not be treated as an index
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert not bare_cache.is_index_file("alpine/v3.18/x86_64/APKINDEX.tar.gz.sig", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert not bare_cache.is_mutable_file("alpine/v3.18/x86_64/APKINDEX.tar.gz.sig", patterns)
def test_apkindex_tmp_file_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["alpine"]
assert not bare_cache.is_index_file("alpine/v3.18/x86_64/APKINDEX.tar.gz.tmp", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["alpine"]
assert not bare_cache.is_mutable_file("alpine/v3.18/x86_64/APKINDEX.tar.gz.tmp", patterns)
# ---------------------------------------------------------------------------
# is_index_file — rpm patterns
# is_mutable_file — rpm patterns
# ---------------------------------------------------------------------------
class TestIsIndexFileRpm:
class TestIsMutableFileRpm:
def test_repomd_xml_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("almalinux/9/x86_64/repomd.xml", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("almalinux/9/x86_64/repomd.xml", patterns)
def test_repodata_primary_xml_gz_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("repo/repodata/primary.xml.gz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("repo/repodata/primary.xml.gz", patterns)
def test_repodata_sqlite_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("repo/repodata/primary.sqlite", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("repo/repodata/primary.sqlite", patterns)
def test_repodata_sqlite_bz2_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("repo/repodata/other.sqlite.bz2", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("repo/repodata/other.sqlite.bz2", patterns)
def test_repodata_yaml_xz_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("repo/repodata/comps.yaml.xz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("repo/repodata/comps.yaml.xz", patterns)
def test_packages_gz_pattern_matches_any_path(self, bare_cache):
# The Packages.gz$ regex is a carryover from the original hardcoded logic and
# deliberately matches any path ending in Packages.gz — including Debian-style paths.
# This test documents that intentional behaviour.
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert bare_cache.is_index_file("debian/dists/stable/main/binary-amd64/Packages.gz", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert bare_cache.is_mutable_file("debian/dists/stable/main/binary-amd64/Packages.gz", patterns)
def test_rpm_package_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert not bare_cache.is_index_file("almalinux/9/x86_64/Packages/bash-5.1.8.x86_64.rpm", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert not bare_cache.is_mutable_file("almalinux/9/x86_64/Packages/bash-5.1.8.x86_64.rpm", patterns)
def test_arbitrary_xml_outside_repodata_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["rpm"]
assert not bare_cache.is_index_file("some/path/config.xml", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["rpm"]
assert not bare_cache.is_mutable_file("some/path/config.xml", patterns)
# ---------------------------------------------------------------------------
# is_index_file — docker patterns
# is_mutable_file — docker patterns
# ---------------------------------------------------------------------------
class TestIsIndexFileDocker:
class TestIsMutableFileDocker:
def test_tag_manifest_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert bare_cache.is_index_file("library/nginx/manifests/latest", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert bare_cache.is_mutable_file("library/nginx/manifests/latest", patterns)
def test_version_tag_manifest_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert bare_cache.is_index_file("library/nginx/manifests/1.25.3", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert bare_cache.is_mutable_file("library/nginx/manifests/1.25.3", patterns)
def test_hyphenated_tag_manifest_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert bare_cache.is_index_file("library/nginx/manifests/latest-rc", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert bare_cache.is_mutable_file("library/nginx/manifests/latest-rc", patterns)
def test_numeric_date_tag_manifest_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert bare_cache.is_index_file("library/nginx/manifests/20240101", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert bare_cache.is_mutable_file("library/nginx/manifests/20240101", patterns)
def test_digest_manifest_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
digest = "sha256:" + "a" * 64
assert not bare_cache.is_index_file(f"library/nginx/manifests/{digest}", patterns)
assert not bare_cache.is_mutable_file(f"library/nginx/manifests/{digest}", patterns)
def test_tags_list_is_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert bare_cache.is_index_file("library/nginx/tags/list", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert bare_cache.is_mutable_file("library/nginx/tags/list", patterns)
def test_blob_is_not_index(self, bare_cache):
patterns = _PACKAGE_INDEX_PATTERNS["docker"]
assert not bare_cache.is_index_file("library/nginx/blobs/sha256:abc123", patterns)
patterns = _PACKAGE_MUTABLE_PATTERNS["docker"]
assert not bare_cache.is_mutable_file("library/nginx/blobs/sha256:abc123", patterns)
# ---------------------------------------------------------------------------
# is_index_file — edge cases
# is_mutable_file — edge cases
# ---------------------------------------------------------------------------
class TestIsIndexFileEdgeCases:
class TestIsMutableFileEdgeCases:
def test_empty_patterns_nothing_is_index(self, bare_cache):
assert not bare_cache.is_index_file("APKINDEX.tar.gz", [])
assert not bare_cache.is_index_file("repomd.xml", [])
assert not bare_cache.is_index_file("library/nginx/manifests/latest", [])
assert not bare_cache.is_mutable_file("APKINDEX.tar.gz", [])
assert not bare_cache.is_mutable_file("repomd.xml", [])
assert not bare_cache.is_mutable_file("library/nginx/manifests/latest", [])
def test_none_patterns_nothing_is_index(self, bare_cache):
assert not bare_cache.is_index_file("APKINDEX.tar.gz", None)
assert not bare_cache.is_index_file("repomd.xml", None)
assert not bare_cache.is_mutable_file("APKINDEX.tar.gz", None)
assert not bare_cache.is_mutable_file("repomd.xml", None)
def test_custom_patterns_match(self, bare_cache):
patterns = [r"metadata\.json$", r"index\.yaml$"]
assert bare_cache.is_index_file("repo/metadata.json", patterns)
assert bare_cache.is_index_file("repo/subdir/index.yaml", patterns)
assert not bare_cache.is_index_file("repo/data.tar.gz", patterns)
assert bare_cache.is_mutable_file("repo/metadata.json", patterns)
assert bare_cache.is_mutable_file("repo/subdir/index.yaml", patterns)
assert not bare_cache.is_mutable_file("repo/data.tar.gz", patterns)
def test_custom_pattern_does_not_match_standard_index(self, bare_cache):
patterns = [r"metadata\.json$"]
assert not bare_cache.is_index_file("APKINDEX.tar.gz", patterns)
assert not bare_cache.is_mutable_file("APKINDEX.tar.gz", patterns)
# ---------------------------------------------------------------------------
@@ -235,3 +235,51 @@ class TestIndexValidity:
# client is None when Redis is unavailable — setex cannot be called
assert unavailable_cache.client is None
unavailable_cache.mark_index_cached("remote", "some/path", 300) # must not raise
# ---------------------------------------------------------------------------
# mutable meta (ETag / Last-Modified storage)
# ---------------------------------------------------------------------------
class TestMutableMeta:
def test_meta_key_format(self, bare_cache):
path = "repo/metadata.json"
expected_hash = hashlib.sha256(path.encode()).hexdigest()[:16]
assert bare_cache.get_mutable_meta_key("myremote", path) == f"mutable:meta:myremote:{expected_hash}"
def test_meta_key_hash_is_16_chars(self, bare_cache):
key = bare_cache.get_mutable_meta_key("remote", "some/path/file.json")
assert len(key.split(":")[-1]) == 16
def test_store_and_retrieve_etag(self, cache_with_redis, mock_redis_client):
mock_redis_client.hgetall.return_value = {"etag": '"abc123"'}
cache_with_redis.store_mutable_meta("remote", "path/meta.json", '"abc123"', None)
mock_redis_client.hset.assert_called_once()
meta = cache_with_redis.get_mutable_meta("remote", "path/meta.json")
assert meta["etag"] == '"abc123"'
def test_store_and_retrieve_last_modified(self, cache_with_redis, mock_redis_client):
lm = "Mon, 01 Jan 2024 00:00:00 GMT"
mock_redis_client.hgetall.return_value = {"last_modified": lm}
cache_with_redis.store_mutable_meta("remote", "path/meta.json", None, lm)
meta = cache_with_redis.get_mutable_meta("remote", "path/meta.json")
assert meta["last_modified"] == lm
def test_store_no_op_when_both_none(self, cache_with_redis, mock_redis_client):
cache_with_redis.store_mutable_meta("remote", "path/meta.json", None, None)
mock_redis_client.hset.assert_not_called()
def test_store_no_op_when_unavailable(self, unavailable_cache):
unavailable_cache.store_mutable_meta("remote", "path", "etag", None) # must not raise
def test_get_returns_empty_when_unavailable(self, unavailable_cache):
assert unavailable_cache.get_mutable_meta("remote", "path") == {}
def test_delete_removes_meta_key(self, cache_with_redis, mock_redis_client):
expected_key = cache_with_redis.get_mutable_meta_key("remote", "path/meta.json")
cache_with_redis.delete_mutable_meta("remote", "path/meta.json")
mock_redis_client.delete.assert_called_once_with(expected_key)
def test_delete_no_op_when_unavailable(self, unavailable_cache):
unavailable_cache.delete_mutable_meta("remote", "path") # must not raise
+70 -38
View File
@@ -1,4 +1,4 @@
"""Tests for ConfigManager, focusing on get_index_patterns (new logic)."""
"""Tests for ConfigManager, focusing on get_mutable_patterns and get_immutable_patterns."""
import os
@@ -21,45 +21,44 @@ def make_config(tmp_path):
# ---------------------------------------------------------------------------
# get_index_patterns
# get_mutable_patterns
# ---------------------------------------------------------------------------
class TestGetIndexPatterns:
class TestGetMutablePatterns:
def test_alpine_returns_package_defaults(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "alpine", "base_url": "https://x.com"}})
patterns = cfg.get_index_patterns("r")
# Assert against literal strings, not the live constant, so a rename doesn't mask a regression
patterns = cfg.get_mutable_patterns("r")
assert r"APKINDEX\.tar\.gz$" in patterns
def test_rpm_returns_package_defaults(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "rpm", "base_url": "https://x.com"}})
patterns = cfg.get_index_patterns("r")
patterns = cfg.get_mutable_patterns("r")
assert r"repomd\.xml$" in patterns
assert any("repodata" in p for p in patterns)
def test_docker_returns_package_defaults(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "docker", "base_url": "https://x.com"}})
patterns = cfg.get_index_patterns("r")
patterns = cfg.get_mutable_patterns("r")
assert any("manifests" in p for p in patterns)
assert any("tags/list" in p for p in patterns)
def test_generic_returns_empty_list(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "generic", "base_url": "https://x.com"}})
assert cfg.get_index_patterns("r") == []
assert cfg.get_mutable_patterns("r") == []
def test_unknown_remote_returns_empty_list(self, make_config):
cfg = make_config({})
assert cfg.get_index_patterns("nonexistent") == []
assert cfg.get_mutable_patterns("nonexistent") == []
def test_missing_package_field_defaults_to_generic(self, make_config):
cfg = make_config({"r": {"type": "remote", "base_url": "https://x.com"}})
assert cfg.get_index_patterns("r") == []
assert cfg.get_mutable_patterns("r") == []
def test_unknown_package_type_returns_empty_list(self, make_config):
# A mis-spelled package type silently returns [] — this is a known footgun
cfg = make_config({"r": {"type": "remote", "package": "deb", "base_url": "https://x.com"}})
assert cfg.get_index_patterns("r") == []
assert cfg.get_mutable_patterns("r") == []
def test_extra_patterns_appended_after_defaults(self, make_config):
cfg = make_config(
@@ -68,11 +67,11 @@ class TestGetIndexPatterns:
"type": "remote",
"package": "alpine",
"base_url": "https://x.com",
"index_patterns": [r"custom\.json$"],
"mutable_patterns": [r"custom\.json$"],
}
}
)
patterns = cfg.get_index_patterns("r")
patterns = cfg.get_mutable_patterns("r")
assert r"APKINDEX\.tar\.gz$" in patterns
assert r"custom\.json$" in patterns
# Defaults come first
@@ -85,11 +84,11 @@ class TestGetIndexPatterns:
"type": "remote",
"package": "alpine",
"base_url": "https://x.com",
"index_patterns": [],
"mutable_patterns": [],
}
}
)
assert r"APKINDEX\.tar\.gz$" in cfg.get_index_patterns("r")
assert r"APKINDEX\.tar\.gz$" in cfg.get_mutable_patterns("r")
def test_duplicate_extra_pattern_not_added_twice(self, make_config):
existing = r"APKINDEX\.tar\.gz$"
@@ -99,11 +98,11 @@ class TestGetIndexPatterns:
"type": "remote",
"package": "alpine",
"base_url": "https://x.com",
"index_patterns": [existing],
"mutable_patterns": [existing],
}
}
)
patterns = cfg.get_index_patterns("r")
patterns = cfg.get_mutable_patterns("r")
assert patterns.count(existing) == 1
def test_generic_with_only_extra_patterns(self, make_config):
@@ -113,11 +112,11 @@ class TestGetIndexPatterns:
"type": "remote",
"package": "generic",
"base_url": "https://x.com",
"index_patterns": [r"meta\.json$", r"index\.yaml$"],
"mutable_patterns": [r"meta\.json$", r"index\.yaml$"],
}
}
)
assert cfg.get_index_patterns("r") == [r"meta\.json$", r"index\.yaml$"]
assert cfg.get_mutable_patterns("r") == [r"meta\.json$", r"index\.yaml$"]
def test_rpm_extra_patterns_merged(self, make_config):
cfg = make_config(
@@ -126,41 +125,41 @@ class TestGetIndexPatterns:
"type": "remote",
"package": "rpm",
"base_url": "https://x.com",
"index_patterns": [r"custom-meta\.xml$"],
"mutable_patterns": [r"custom-meta\.xml$"],
}
}
)
patterns = cfg.get_index_patterns("r")
patterns = cfg.get_mutable_patterns("r")
assert r"repomd\.xml$" in patterns
assert r"custom-meta\.xml$" in patterns
# ---------------------------------------------------------------------------
# get_repository_patterns
# get_immutable_patterns
# ---------------------------------------------------------------------------
class TestGetRepositoryPatterns:
def test_returns_include_patterns(self, make_config):
class TestGetImmutablePatterns:
def test_returns_immutable_patterns(self, make_config):
cfg = make_config(
{
"r": {
"type": "remote",
"package": "generic",
"base_url": "https://x.com",
"include_patterns": [r".*\.tar\.gz$"],
"immutable_patterns": [r".*\.tar\.gz$"],
}
}
)
assert cfg.get_repository_patterns("r", "") == [r".*\.tar\.gz$"]
assert cfg.get_immutable_patterns("r") == [r".*\.tar\.gz$"]
def test_returns_empty_for_missing_remote(self, make_config):
cfg = make_config({})
assert cfg.get_repository_patterns("nonexistent", "") == []
assert cfg.get_immutable_patterns("nonexistent") == []
def test_returns_empty_when_no_patterns_configured(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "generic", "base_url": "https://x.com"}})
assert cfg.get_repository_patterns("r", "") == []
assert cfg.get_immutable_patterns("r") == []
def test_multiple_patterns_returned(self, make_config):
patterns = [r".*\.rpm$", r".*/repodata/.*$"]
@@ -170,11 +169,11 @@ class TestGetRepositoryPatterns:
"type": "remote",
"package": "rpm",
"base_url": "https://x.com",
"include_patterns": patterns,
"immutable_patterns": patterns,
}
}
)
assert cfg.get_repository_patterns("r", "") == patterns
assert cfg.get_immutable_patterns("r") == patterns
def test_dict_keyed_repositories_returns_per_repo_patterns(self, make_config):
cfg = make_config(
@@ -183,14 +182,14 @@ class TestGetRepositoryPatterns:
"type": "remote",
"package": "generic",
"base_url": "https://x.com",
"include_patterns": [r".*\.tar\.gz$"],
"immutable_patterns": [r".*\.tar\.gz$"],
"repositories": {
"/path/to/repo": {"include_patterns": [r".*\.rpm$"]},
"/path/to/repo": {"immutable_patterns": [r".*\.rpm$"]},
},
}
}
)
assert cfg.get_repository_patterns("r", "/path/to/repo") == [r".*\.rpm$"]
assert cfg.get_immutable_patterns("r", "/path/to/repo") == [r".*\.rpm$"]
def test_dict_keyed_repositories_falls_back_to_remote_patterns(self, make_config):
cfg = make_config(
@@ -199,14 +198,47 @@ class TestGetRepositoryPatterns:
"type": "remote",
"package": "generic",
"base_url": "https://x.com",
"include_patterns": [r".*\.tar\.gz$"],
"immutable_patterns": [r".*\.tar\.gz$"],
"repositories": {
"/path/to/repo": {"include_patterns": [r".*\.rpm$"]},
"/path/to/repo": {"immutable_patterns": [r".*\.rpm$"]},
},
}
}
)
assert cfg.get_repository_patterns("r", "/unknown/path") == [r".*\.tar\.gz$"]
assert cfg.get_immutable_patterns("r", "/unknown/path") == [r".*\.tar\.gz$"]
# ---------------------------------------------------------------------------
# get_user_mutable_patterns
# ---------------------------------------------------------------------------
class TestGetUserMutablePatterns:
def test_returns_only_user_patterns(self, make_config):
cfg = make_config(
{
"r": {
"type": "remote",
"package": "alpine",
"base_url": "https://x.com",
"mutable_patterns": [r"custom\.json$"],
}
}
)
assert cfg.get_user_mutable_patterns("r") == [r"custom\.json$"]
def test_excludes_package_defaults(self, make_config):
# Package defaults (APKINDEX etc.) must NOT appear here
cfg = make_config({"r": {"type": "remote", "package": "alpine", "base_url": "https://x.com"}})
assert cfg.get_user_mutable_patterns("r") == []
def test_returns_empty_for_missing_remote(self, make_config):
cfg = make_config({})
assert cfg.get_user_mutable_patterns("nonexistent") == []
def test_returns_empty_when_key_absent(self, make_config):
cfg = make_config({"r": {"type": "remote", "package": "generic", "base_url": "https://x.com"}})
assert cfg.get_user_mutable_patterns("r") == []
# ---------------------------------------------------------------------------
@@ -222,11 +254,11 @@ class TestGetCacheConfig:
"type": "remote",
"package": "generic",
"base_url": "https://x.com",
"cache": {"file_ttl": 0, "index_ttl": 7200},
"cache": {"immutable_ttl": 0, "mutable_ttl": 7200},
}
}
)
assert cfg.get_cache_config("r") == {"file_ttl": 0, "index_ttl": 7200}
assert cfg.get_cache_config("r") == {"immutable_ttl": 0, "mutable_ttl": 7200}
def test_returns_empty_dict_for_missing_remote(self, make_config):
cfg = make_config({})
+131 -33
View File
@@ -25,7 +25,7 @@ def mock_storage():
@pytest.fixture
def mock_cache():
m = MagicMock()
m.is_index_file.return_value = False
m.is_mutable_file.return_value = False
m.is_index_valid.return_value = True
m.available = False
m.client = None
@@ -123,7 +123,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = True
response = client.get("/v2/docker-restricted/library/nginx/manifests/latest")
@@ -140,7 +140,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = True
response = client.get("/v2/docker-test/library/nginx/manifests/latest")
@@ -158,7 +158,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = True
response = client.get("/v2/docker-test/library/nginx/manifests/latest")
@@ -170,7 +170,7 @@ class TestDockerProxy:
manifest = json.dumps({"mediaType": "application/vnd.oci.image.manifest.v1+json", "layers": []}).encode()
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
client.get("/v2/docker-test/library/nginx/manifests/latest")
deps["metrics"].record_cache_hit.assert_called_once_with("docker-test", ANY)
@@ -185,7 +185,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.head("/v2/docker-test/library/nginx/manifests/latest")
assert response.status_code == 200
@@ -201,7 +201,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = False
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
with patch(
"artifactapi.main.cache_single_artifact",
@@ -223,7 +223,7 @@ class TestDockerProxy:
).encode()
deps["storage"].exists.return_value = False
deps["storage"].download_object.return_value = manifest
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
with patch(
"artifactapi.main.cache_single_artifact",
@@ -244,16 +244,17 @@ class TestDockerProxy:
}
).encode()
deps["storage"].exists.return_value = True # cached in S3
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False # but TTL expired
deps["storage"].download_object.return_value = manifest
with patch(
"artifactapi.main.cache_single_artifact",
new_callable=AsyncMock,
return_value={"status": "cached"},
) as mock_fetch:
response = client.get("/v2/docker-test/library/nginx/manifests/latest")
with patch("artifactapi.main._upstream_reachable", new_callable=AsyncMock, return_value=True):
with patch(
"artifactapi.main.cache_single_artifact",
new_callable=AsyncMock,
return_value={"status": "cached"},
) as mock_fetch:
response = client.get("/v2/docker-test/library/nginx/manifests/latest")
mock_fetch.assert_called_once()
assert response.status_code == 200
@@ -278,7 +279,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"tar content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.get("/api/v1/remote/generic-test/some/path/archive.tar.gz")
assert response.status_code == 200
@@ -289,7 +290,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.get("/api/v1/remote/generic-test/some/path/archive.tar.gz")
disposition = response.headers["content-disposition"]
@@ -301,7 +302,7 @@ class TestGenericArtifactRoute:
content = b"some artifact content bytes"
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = content
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.get("/api/v1/remote/generic-test/some/path/archive.tar.gz")
assert response.headers["X-Artifact-Size"] == str(len(content))
@@ -310,7 +311,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
client.get("/api/v1/remote/generic-test/some/path/archive.tar.gz")
deps["metrics"].record_cache_hit.assert_called_once_with("generic-test", ANY)
@@ -319,7 +320,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
client.get("/api/v1/remote/generic-test/some/path/archive.tar.gz")
deps["database"].record_artifact_mapping.assert_called_once()
@@ -328,7 +329,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"rpm bytes"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.get("/api/v1/remote/rpm-test/almalinux/9/x86_64/bash-5.1.8.x86_64.rpm")
assert response.status_code == 200
@@ -338,7 +339,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"<?xml version='1.0'?>"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
response = client.get("/api/v1/remote/rpm-test/repo/repodata/primary.xml")
assert response.status_code == 200
@@ -348,7 +349,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = False
deps["storage"].download_object.return_value = b"fresh content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
with patch(
"artifactapi.main.cache_single_artifact",
@@ -365,7 +366,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = False
deps["storage"].download_object.return_value = b"fresh content"
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
with patch(
"artifactapi.main.cache_single_artifact",
@@ -380,7 +381,7 @@ class TestGenericArtifactRoute:
deps = patched_deps
deps["storage"].exists.return_value = False
deps["storage"].download_object.return_value = b"APKINDEX content"
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
with patch(
"artifactapi.main.cache_single_artifact",
@@ -395,7 +396,7 @@ class TestGenericArtifactRoute:
def test_upstream_error_returns_502(self, client, patched_deps):
deps = patched_deps
deps["storage"].exists.return_value = False
deps["cache"].is_index_file.return_value = False
deps["cache"].is_mutable_file.return_value = False
with patch(
"artifactapi.main.cache_single_artifact",
@@ -406,19 +407,116 @@ class TestGenericArtifactRoute:
assert response.status_code == 502
def test_index_file_bypasses_include_patterns(self, client, patched_deps):
"""Index files must be served even when they don't match include_patterns."""
def test_mutable_file_bypasses_immutable_patterns(self, client, patched_deps):
"""Mutable files must be served even when they don't match immutable_patterns."""
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"APKINDEX content"
deps["cache"].is_index_file.return_value = True
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = True
# APKINDEX.tar.gz does not match alpine-test's include_patterns (.*.apk$),
# but since is_index_file returns True it must be allowed through.
# APKINDEX.tar.gz does not match alpine-test's immutable_patterns (.*.apk$),
# but since is_mutable_file returns True it must be allowed through.
response = client.get("/api/v1/remote/alpine-test/alpine/v3.18/x86_64/APKINDEX.tar.gz")
assert response.status_code == 200
def test_mutable_unchanged_refreshes_ttl_without_redownload(self, client, patched_deps):
"""When check_mutable_updates=True and upstream says 304, TTL is refreshed in place."""
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"metadata content"
# File is mutable and its TTL has expired
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
deps["cache"].get_mutable_meta.return_value = {"etag": '"abc"'}
with patch("artifactapi.main.check_upstream_changed", new_callable=AsyncMock, return_value=False):
response = client.get("/api/v1/remote/check-mutable-test/metadata.json")
assert response.status_code == 200
deps["cache"].mark_index_cached.assert_called()
# S3 object must NOT have been deleted (no re-download)
deps["storage"].client.delete_object.assert_not_called()
def test_mutable_changed_triggers_redownload(self, client, patched_deps):
"""When check_mutable_updates=True and upstream says 200, cache is invalidated."""
deps = patched_deps
deps["storage"].exists.return_value = False
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
deps["cache"].get_mutable_meta.return_value = {"etag": '"abc"'}
with patch("artifactapi.main.check_upstream_changed", new_callable=AsyncMock, return_value=True):
with patch("artifactapi.main.cache_single_artifact", new_callable=AsyncMock) as mock_cache:
mock_cache.return_value = {"status": "error", "error": "upstream gone"}
response = client.get("/api/v1/remote/check-mutable-test/metadata.json")
assert response.status_code == 502
def test_mutable_changed_redownloads_successfully(self, client, patched_deps):
"""When check_mutable_updates=True and upstream says 200, fresh copy is fetched and served."""
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"fresh metadata"
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
deps["cache"].get_mutable_meta.return_value = {"etag": '"abc"'}
with patch("artifactapi.main.check_upstream_changed", new_callable=AsyncMock, return_value=True):
with patch("artifactapi.main.cache_single_artifact", new_callable=AsyncMock) as mock_cache:
mock_cache.return_value = {"status": "cached", "etag": '"def"', "last_modified": None}
response = client.get("/api/v1/remote/check-mutable-test/metadata.json")
assert response.status_code == 200
mock_cache.assert_called_once()
def test_mutable_backend_unreachable_on_check_updates_keeps_stale(self, client, patched_deps):
"""When check_mutable_updates=True and backend is unreachable, stale copy is kept and TTL refreshed."""
from artifactapi.main import UpstreamUnreachable
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"stale metadata"
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
deps["cache"].get_mutable_meta.return_value = {"etag": '"abc"'}
with patch("artifactapi.main.check_upstream_changed", side_effect=UpstreamUnreachable("connection refused")):
response = client.get("/api/v1/remote/check-mutable-test/metadata.json")
assert response.status_code == 200
deps["cache"].mark_index_cached.assert_called()
deps["storage"].client.delete_object.assert_not_called()
def test_mutable_backend_unreachable_on_expiry_keeps_stale(self, client, patched_deps):
"""When a regular mutable file expires and backend is unreachable, stale copy is kept and TTL refreshed."""
deps = patched_deps
deps["storage"].exists.return_value = True
deps["storage"].download_object.return_value = b"stale APKINDEX"
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
with patch("artifactapi.main._upstream_reachable", new_callable=AsyncMock, return_value=False):
response = client.get("/api/v1/remote/alpine-test/alpine/v3.18/x86_64/APKINDEX.tar.gz")
assert response.status_code == 200
deps["cache"].mark_index_cached.assert_called()
deps["storage"].client.delete_object.assert_not_called()
def test_mutable_flag_off_skips_conditional_check(self, client, patched_deps):
"""When check_mutable_updates is not set, expired mutable files are always re-fetched."""
deps = patched_deps
deps["storage"].exists.return_value = False
deps["cache"].is_mutable_file.return_value = True
deps["cache"].is_index_valid.return_value = False
with patch("artifactapi.main.check_upstream_changed", new_callable=AsyncMock) as mock_check:
with patch("artifactapi.main.cache_single_artifact", new_callable=AsyncMock) as mock_cache:
mock_cache.return_value = {"status": "error", "error": "upstream gone"}
client.get("/api/v1/remote/custom-index-test/metadata.json")
mock_check.assert_not_called()
def test_local_repo_file_not_found_returns_404(self, client, patched_deps):
deps = patched_deps
deps["database"].get_local_file_metadata.return_value = None
@@ -519,8 +617,8 @@ class TestCacheFlushEndpoint:
deps["cache"].available = True
redis_mock = MagicMock()
deps["cache"].client = redis_mock
# First pattern (index:*) returns keys; subsequent pattern returns nothing
redis_mock.keys.side_effect = [["index:test:abc", "index:test:def"], []]
# index:* returns keys; mutable:meta:* and metrics:* return nothing
redis_mock.keys.side_effect = [["index:test:abc", "index:test:def"], [], []]
deps["storage"].client.list_objects_v2.return_value = {}
response = client.put("/cache/flush")