unkin-agent
cd8e2c262f
Deploys arrproxy v0.1.0 (task 9 final integration) into the existing `arrstack` app: the external, Authentik-gated front door for sonarr/radarr/prowlarr with per-user API-key brokering. Manifests are wired to match the arrproxy v0.1.0 code (ports, routes, identity headers, keys dir), mirroring the ghp/artifactapi estate patterns.
## Topology (`apps/base/arrstack/arrproxy/`)
- **oauth2-proxy** Deployment + Service `arrproxy` is the single front (OIDC against the Authentik `arrstack` app). It path-routes via `--upstreams` to:
- `arrproxy-ui` for `/` and static SPA assets,
- `arrproxy-api` for `/api/*` (token API) and `/sonarr|/radarr|/prowlarr` (the *arr proxy).
- `--skip-auth-regex=^/[^/]+/api` bypasses oauth **only** for the *arr proxy API (`/sonarr/api...`), while `/api/tokens`, `/api/me` and the UI stay authenticated.
- Identity+groups reach the api via `--pass-user-headers` (`X-Forwarded-{User,Email,Groups}`). The api reads `ARRPROXY_GROUPS_HEADER=X-Forwarded-Groups` — `--set-xauthrequest` only populates auth_request *response* headers and never reaches an `--upstreams` backend, so it is intentionally not used.
- oauth2-proxy trusts `identity.unkin.net` (internal Vault-PKI CA) via a `combine-certs` initContainer (system roots + `vault-ca-cert`), same pattern as artifactapi.
## Data + secrets
- **CNPG** token store `arrproxy-db` (2 instances, cephrgw S3 backups + nightly ScheduledBackup). arrproxy-api does **not** self-migrate, so a wave-1 ArgoCD `Sync` hook Job applies `migrations/0001_init.sql` (mirrored into a ConfigMap) as the CNPG app user. DSN built from the generated `arrproxy-db-app` Secret.
- **VaultStaticSecrets** (arrstack `default` SA / templated role — no terraform-vault change): `arrproxy-pepper` (seeded) and `oauth-credentials`. The three real *arr keys are **reused** from the existing `<app>-apikey` Secrets, projected one file per app into `/etc/arrproxy/keys`.
## Exposure
- **Gateway** `traefik-external`, hostname `arrstack.unkin.net`, cert-manager `vault-issuer` TLS (`arrproxy-gateway-tls`); HTTPRoute → the oauth2-proxy entry Service (+ HTTP→HTTPS redirect).
- Adds the `arrstack.unkin.net` apex A record → external DMZ VIP `198.18.199.0` to the bind-operator `unkin.net` zone (`apps/base/bind-internal/authoritative/records.yaml`), mirroring the ghp/identity apex records.
## Validation
- `kustomize build --enable-helm apps/overlays/au-syd1/arrstack` renders cleanly; `kubeconform` = 51/51 valid; `pre-commit` passes (no plain Secrets).
## Prerequisites / flags for end-to-end function (NOT in this PR)
- **(a)** Each *arr must run with `UrlBase=/<app>` (path-based hosting) — arrproxy preserves the `/<app>` prefix upstream.
- **(b)** The Authentik `arrstack` OIDC app (terraform-authentik PR #18) must be applied, with redirect URI `https://arrstack.unkin.net/oauth2/callback` registered and the `ak_groups` scope emitted. Confirm the discovery slug matches `OAUTH2_PROXY_OIDC_ISSUER_URL` (`https://identity.unkin.net/application/o/arrstack/`).
- **(c)** Browser XHR to `/<app>/api` is oauth-**bypassed** (skip-auth-regex), so the SPA-driven proxy calls that rely on the session (no per-user token) will not carry identity on that path — expected per the arrproxy trust model; token-based *arr clients are unaffected.
- **NetworkPolicy:** the arrproxy-api Service is not exposed via any HTTPRoute and the api strips forged identity headers in-code, but the README recommends a NetworkPolicy restricting api ingress to oauth2-proxy. The estate currently has **zero** NetworkPolicies, so one was not added here to avoid being the first (and risking probe breakage) before the CNI’s policy/probe behavior is confirmed — flagged as follow-up hardening.
- Please confirm: CNPG size (2 instances / 10Gi), backups on, hostname/VIP, and UI theme.
ARRPROXY_PEPPER was seeded via the agents AppRole at `kv/kubernetes/namespace/arrstack/default/arrproxy-pepper` (key `pepper`).
Reviewed-on: #377
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
118 lines
3.1 KiB
YAML
118 lines
3.1 KiB
YAML
---
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apiVersion: postgresql.cnpg.io/v1
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kind: Cluster
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metadata:
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name: arrproxy-db
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namespace: arrstack
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annotations:
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# Wave 0: DB (and the generated arrproxy-db-app Secret) must be Healthy before
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# the wave-1 migrate Job runs. ArgoCD gates on the Cluster's health status.
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argocd.argoproj.io/sync-wave: "0"
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spec:
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affinity:
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podAntiAffinityType: preferred
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backup:
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retentionPolicy: 30d
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barmanObjectStore:
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destinationPath: s3://cnpg-arrproxy
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endpointURL: https://s3.ceph.unkin.net
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endpointCA:
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name: vault-ca-cert
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key: ca.crt
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s3Credentials:
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accessKeyId:
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name: cnpg-arrproxy-backup-s3
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key: AWS_ACCESS_KEY_ID
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secretAccessKey:
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name: cnpg-arrproxy-backup-s3
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key: AWS_SECRET_ACCESS_KEY
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serverName: arrproxy
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data:
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compression: bzip2
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jobs: 2
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wal:
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compression: zstd
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maxParallel: 2
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bootstrap:
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initdb:
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# No secret ref: CNPG mints the owner credentials and publishes them in the
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# generated "arrproxy-db-app" Secret, which the api reads to build the DSN.
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database: arrproxy
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encoding: UTF8
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localeCType: C
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localeCollate: C
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owner: arrproxy
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enablePDB: true
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enableSuperuserAccess: false
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failoverDelay: 0
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imageName: ghcr.io/cloudnative-pg/postgresql:18.1-system-trixie
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instances: 2
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logLevel: info
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maxSyncReplicas: 0
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minSyncReplicas: 0
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monitoring:
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customQueriesConfigMap:
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- key: queries
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name: cnpg-default-monitoring
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disableDefaultQueries: false
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enablePodMonitor: false
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postgresql:
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parameters:
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archive_mode: "on"
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archive_timeout: 5min
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dynamic_shared_memory_type: posix
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effective_cache_size: 256MB
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full_page_writes: "on"
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log_destination: csvlog
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log_directory: /controller/log
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log_filename: postgres
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log_rotation_age: "0"
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log_rotation_size: "0"
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log_truncate_on_rotation: "false"
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logging_collector: "on"
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max_connections: "200"
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max_parallel_workers: "16"
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max_replication_slots: "16"
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max_worker_processes: "16"
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shared_buffers: 128MB
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shared_memory_type: mmap
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ssl_max_protocol_version: TLSv1.3
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ssl_min_protocol_version: TLSv1.3
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wal_keep_size: 256MB
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wal_level: logical
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wal_log_hints: "on"
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wal_receiver_timeout: 5s
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wal_sender_timeout: 5s
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syncReplicaElectionConstraint:
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enabled: false
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primaryUpdateMethod: restart
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primaryUpdateStrategy: unsupervised
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probes:
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liveness:
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isolationCheck:
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connectionTimeout: 1000
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enabled: true
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requestTimeout: 1000
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replicationSlots:
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highAvailability:
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enabled: true
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slotPrefix: _cnpg_
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synchronizeReplicas:
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enabled: true
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updateInterval: 30
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resources:
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limits:
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cpu: 500m
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memory: 512Mi
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requests:
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cpu: 50m
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memory: 256Mi
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smartShutdownTimeout: 180
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startDelay: 3600
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stopDelay: 1800
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storage:
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resizeInUseVolumes: true
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size: 10Gi
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storageClass: cephrbd-fast-delete
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switchoverDelay: 3600
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