Validate and cap ansible pagination params

- add ansible package type proxying the Galaxy v3 API
- rewrite href/links/download_url back to the remote so tarballs flow through it
- forward the query string for providers that opt in, keeping Galaxy pagination working
- add a UI usage snippet and an ansible e2e caching case

README.md

@@ -33,6 +33,7 @@ API: `http://localhost:8000` | Frontend: `http://localhost:5173`
 | `terraform` | `*/versions` | `*/download/*/*` |
 | `goproxy` | `@v/list`, `@latest` | `.info`, `.mod`, `.zip` |
 | `cargo` | sparse index files (`config.json` synthesized) | `crates/*/*.crate` |
+| `ansible` | Galaxy `api/` JSON (links rewritten, `limit`/`offset` forwarded) | `artifacts/*.tar.gz` |
 | `nuget` | `index.json` (service index), registration and flat container indexes | `.nupkg`, `.nuspec` |
 | `github_rpm` | `repodata/*` (synthesized) | `.rpm` (redirected) |
 

e2e-docker/README.md

@@ -23,7 +23,7 @@ already-running stack.
 
 - **Repository lifecycle** — add / change / delete for remote, local and virtual repos.
 - **Caching** — one immutable artifact per remote package type (generic, docker,
-  helm, pypi, npm, rpm, alpine, puppet, terraform, goproxy, cargo, nuget) proxied through the
+  helm, pypi, npm, rpm, alpine, puppet, terraform, goproxy, cargo, nuget, ansible) proxied through the
   mock upstream: first fetch `X-Artifact-Source: remote`, second `cache`, bytes
   verified against the origin fixture.
 - **Local uploads** — generic (upload/download), pypi (wheel + generated `simple/`

e2e-docker/caching_test.go

@@ -30,6 +30,7 @@ func TestCachingPerProvider(t *testing.T) {
 		{"puppet", "puppet-releases/author-mod-1.0.0.tar.gz", "puppet-releases/author-mod-1.0.0.tar.gz"},
 		{"goproxy", "goproxy/example.com/mod/@v/v1.0.0.zip", "goproxy/example.com/mod/@v/v1.0.0.zip"},
 		{"cargo", "crates/mycrate/mycrate-1.0.0.crate", "crates/mycrate/mycrate-1.0.0.crate"},
+		{"ansible", "galaxy/artifacts/ns-col-1.0.0.tar.gz", "galaxy/artifacts/ns-col-1.0.0.tar.gz"},
 		{"nuget", "nuget/e2epkg/1.0.0/e2epkg.1.0.0.nupkg", "nuget/e2epkg/1.0.0/e2epkg.1.0.0.nupkg"},
 		{"terraform", "hashicorp/aws/download/pkg.zip", "v1/providers/hashicorp/aws/download/pkg.zip"},
 		{"docker", "library/testimg/blobs/blobdata", "v2/library/testimg/blobs/blobdata"},

internal/api/v1/forwardquery_test.go

@@ -0,0 +1,58 @@
+package v1
+
+import (
+	"net/url"
+	"strings"
+	"testing"
+
+	"git.unkin.net/unkin/artifactapi/internal/provider"
+)
+
+type plainProvider struct{ provider.Provider }
+
+type forwardingProvider struct{ plainProvider }
+
+func digits(v string) (string, bool) {
+	if v == "" || strings.Trim(v, "0123456789") != "" {
+		return "", false
+	}
+	return strings.TrimLeft(v, "0"), true
+}
+
+func (forwardingProvider) ForwardedQuery(path string) map[string]provider.QueryValidator {
+	if strings.HasSuffix(path, ".tar.gz") {
+		return nil
+	}
+	return map[string]provider.QueryValidator{"limit": digits, "offset": digits}
+}
+
+func TestForwardQuery(t *testing.T) {
+	tests := []struct {
+		name  string
+		prov  provider.Provider
+		path  string
+		query string
+		want  string
+	}{
+		{"non-forwarder keeps path", plainProvider{}, "a/versions/", "limit=10&offset=5", "a/versions/"},
+		{"no query", forwardingProvider{}, "a/versions/", "", "a/versions/"},
+		{"allowlisted params sorted", forwardingProvider{}, "a/versions/", "offset=5&limit=10", "a/versions/?limit=10&offset=5"},
+		{"unknown params dropped", forwardingProvider{}, "a/versions/", "x=1&limit=10&cb=zz", "a/versions/?limit=10"},
+		{"only unknown params", forwardingProvider{}, "a/versions/", "x=1", "a/versions/"},
+		{"first value wins", forwardingProvider{}, "a/versions/", "limit=10&limit=20", "a/versions/?limit=10"},
+		{"invalid value dropped", forwardingProvider{}, "a/versions/", "limit=1%202&offset=5", "a/versions/?offset=5"},
+		{"value canonicalised", forwardingProvider{}, "a/versions/", "limit=0010", "a/versions/?limit=10"},
+		{"path without allowlist", forwardingProvider{}, "a/b-1.0.0.tar.gz", "limit=10", "a/b-1.0.0.tar.gz"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			q, err := url.ParseQuery(tt.query)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if got := forwardQuery(tt.prov, tt.path, q); got != tt.want {
+				t.Errorf("forwardQuery = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}

internal/api/v1/proxy.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"log/slog"
 	"net/http"
+	"net/url"
 
 	"github.com/go-chi/chi/v5"
 
@@ -93,7 +94,7 @@ func (h *ProxyHandler) handleProxy(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	result, err := h.engine.Fetch(r.Context(), *remote, path, prov, r.Header)
+	result, err := h.engine.Fetch(r.Context(), *remote, forwardQuery(prov, path, r.URL.Query()), prov, r.Header)
 	if err != nil {
 		var proxyErr *proxy.ProxyError
 		if errors.As(err, &proxyErr) {
@@ -258,3 +259,22 @@ func scheme(r *http.Request) string {
 	}
 	return "http"
 }
+
+// forwardQuery appends the provider's validated query params to path in a
+// canonical (sorted, single-valued) form, since the result is the cache key.
+func forwardQuery(prov provider.Provider, path string, query url.Values) string {
+	f, ok := prov.(provider.QueryForwarder)
+	if !ok {
+		return path
+	}
+	kept := url.Values{}
+	for name, valid := range f.ForwardedQuery(path) {
+		if v, ok := valid(query.Get(name)); ok {
+			kept.Set(name, v)
+		}
+	}
+	if len(kept) == 0 {
+		return path
+	}
+	return path + "?" + kept.Encode()
+}

internal/provider/ansible/ansible.go

@@ -0,0 +1,139 @@
+// Package ansible proxies an Ansible Galaxy server (v3 collections API):
+// mutable JSON metadata whose links are rewritten back to the remote, plus
+// immutable collection tarballs.
+package ansible
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"git.unkin.net/unkin/artifactapi/internal/auth"
+	"git.unkin.net/unkin/artifactapi/internal/provider"
+	"git.unkin.net/unkin/artifactapi/pkg/models"
+)
+
+func init() {
+	provider.Register(&Provider{})
+}
+
+type Provider struct{}
+
+func (p *Provider) Type() models.PackageType { return models.PackageAnsible }
+
+func (p *Provider) Classify(path string) provider.Mutability {
+	if isArtifact(path) {
+		return provider.Immutable
+	}
+	return provider.Mutable
+}
+
+func (p *Provider) ContentType(path string) string {
+	if isArtifact(path) {
+		return "application/gzip"
+	}
+	return "application/json"
+}
+
+func (p *Provider) UpstreamURL(remote models.Remote, path string) string {
+	return strings.TrimRight(remote.BaseURL, "/") + "/" + strings.TrimLeft(path, "/")
+}
+
+const maxPageLimit = 100
+
+// ForwardedQuery keeps limit/offset pagination on metadata paths only.
+func (p *Provider) ForwardedQuery(path string) map[string]provider.QueryValidator {
+	if isArtifact(path) {
+		return nil
+	}
+	return map[string]provider.QueryValidator{"limit": pageLimit, "offset": pageOffset}
+}
+
+func pageOffset(v string) (string, bool) {
+	n, err := strconv.ParseUint(v, 10, 32)
+	return strconv.FormatUint(n, 10), err == nil
+}
+
+func pageLimit(v string) (string, bool) {
+	n, err := strconv.ParseUint(v, 10, 32)
+	if err != nil || n == 0 {
+		return "", false
+	}
+	return strconv.FormatUint(min(n, maxPageLimit), 10), true
+}
+
+// RewriteResponse points href, download_url and links.* at the remote. Links
+// stay root-relative, which ansible-galaxy joins onto the server URL, so the
+// cached body is independent of the request host.
+func (p *Provider) RewriteResponse(body []byte, remote models.Remote, _ string) ([]byte, error) {
+	dec := json.NewDecoder(bytes.NewReader(body))
+	dec.UseNumber()
+	var doc any
+	if err := dec.Decode(&doc); err != nil {
+		return nil, nil
+	}
+	r := rewriter{
+		prefix: provider.RemoteMountPath + url.PathEscape(remote.Name) + "/",
+		base:   strings.TrimRight(remote.BaseURL, "/") + "/",
+	}
+	r.walk(doc)
+	var out bytes.Buffer
+	enc := json.NewEncoder(&out)
+	enc.SetEscapeHTML(false)
+	if err := enc.Encode(doc); err != nil {
+		return nil, err
+	}
+	return out.Bytes(), nil
+}
+
+func (p *Provider) AuthHeaders(_ context.Context, remote models.Remote) (http.Header, error) {
+	return auth.BasicHeaders(remote), nil
+}
+
+type rewriter struct{ prefix, base string }
+
+func (r rewriter) walk(v any) {
+	switch v := v.(type) {
+	case []any:
+		for _, e := range v {
+			r.walk(e)
+		}
+	case map[string]any:
+		for k, e := range v {
+			switch k {
+			case "href", "download_url":
+				v[k] = r.link(e)
+			case "links":
+				if links, ok := e.(map[string]any); ok {
+					for lk, l := range links {
+						links[lk] = r.link(l)
+					}
+					continue
+				}
+			}
+			r.walk(v[k])
+		}
+	}
+}
+
+func (r rewriter) link(v any) any {
+	s, ok := v.(string)
+	switch {
+	case !ok:
+		return v
+	case strings.HasPrefix(s, "/api/"):
+		return r.prefix + s[1:]
+	case strings.HasPrefix(s, r.base):
+		return r.prefix + strings.TrimPrefix(s, r.base)
+	}
+	return s
+}
+
+func isArtifact(path string) bool {
+	path, _, _ = strings.Cut(path, "?")
+	return strings.Contains(path, "/artifacts/") && strings.HasSuffix(path, ".tar.gz")
+}

internal/provider/ansible/ansible_test.go

@@ -0,0 +1,150 @@
+package ansible
+
+import (
+	"encoding/json"
+	"testing"
+
+	"git.unkin.net/unkin/artifactapi/internal/provider"
+	"git.unkin.net/unkin/artifactapi/pkg/models"
+)
+
+const tarball = "api/v3/plugin/ansible/content/published/collections/artifacts/ansible-posix-2.0.0.tar.gz"
+
+func TestClassify(t *testing.T) {
+	p := &Provider{}
+	tests := []struct {
+		path string
+		want provider.Mutability
+	}{
+		{"api/", provider.Mutable},
+		{"api/v3/collections/community/general/versions/?limit=100", provider.Mutable},
+		{"api/v3/collections/community/general/versions/?x=.tar.gz", provider.Mutable},
+		{"api/v3/collections/ansible/posix/versions/2.0.0/", provider.Mutable},
+		{"api/v3/collections/ansible/posix/readme.tar.gz", provider.Mutable},
+		{tarball, provider.Immutable},
+		{tarball + "?limit=1", provider.Immutable},
+	}
+	for _, tt := range tests {
+		if got := p.Classify(tt.path); got != tt.want {
+			t.Errorf("Classify(%q) = %v, want %v", tt.path, got, tt.want)
+		}
+	}
+}
+
+func TestContentTypeIgnoresQuery(t *testing.T) {
+	if got := (&Provider{}).ContentType("api/v3/collections/a/b/versions/?x=.tar.gz"); got != "application/json" {
+		t.Errorf("ContentType = %q, want application/json", got)
+	}
+}
+
+func TestForwardedQuery(t *testing.T) {
+	p := &Provider{}
+	if got := p.ForwardedQuery(tarball); got != nil {
+		t.Errorf("tarball ForwardedQuery = %v, want nil", got)
+	}
+	q := p.ForwardedQuery("api/v3/collections/a/b/versions/")
+	if len(q) != 2 || q["limit"] == nil || q["offset"] == nil {
+		t.Fatalf("metadata ForwardedQuery keys = %v, want limit and offset", q)
+	}
+	tests := []struct {
+		param, in, want string
+		ok              bool
+	}{
+		{"limit", "10", "10", true},
+		{"limit", "007", "7", true},
+		{"limit", "100", "100", true},
+		{"limit", "5000", "100", true},
+		{"limit", "0", "", false},
+		{"limit", "", "", false},
+		{"limit", "-1", "", false},
+		{"limit", "+5", "", false},
+		{"limit", "1e3", "", false},
+		{"limit", "10 ", "", false},
+		{"offset", "0", "0", true},
+		{"offset", "000", "0", true},
+		{"offset", "0100", "100", true},
+		{"offset", "abc", "", false},
+		{"offset", "99999999999999999999", "", false},
+	}
+	for _, tt := range tests {
+		got, ok := q[tt.param](tt.in)
+		if ok != tt.ok || (ok && got != tt.want) {
+			t.Errorf("%s(%q) = %q, %v, want %q, %v", tt.param, tt.in, got, ok, tt.want, tt.ok)
+		}
+	}
+}
+
+func rewrite(t *testing.T, remote models.Remote, body string) map[string]any {
+	t.Helper()
+	out, err := (&Provider{}).RewriteResponse([]byte(body), remote, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	var got map[string]any
+	if err := json.Unmarshal(out, &got); err != nil {
+		t.Fatalf("rewritten body is not JSON: %v: %s", err, out)
+	}
+	return got
+}
+
+func TestRewriteResponse(t *testing.T) {
+	remote := models.Remote{Name: "galaxy", BaseURL: "https://galaxy.ansible.com/"}
+	got := rewrite(t, remote, `{
+		"links": {"next": "/api/v3/collections/a/b/versions/?limit=10&offset=10", "previous": null},
+		"data": [{
+			"href": "/api/v3/collections/a/b/versions/1.0.0/",
+			"download_url": "https://galaxy.ansible.com/api/v3/plugin/ansible/content/published/collections/artifacts/a-b-1.0.0.tar.gz",
+			"description": "/api/ is where it lives",
+			"docs": "/api/v3/not-a-link/",
+			"metadata": {"repository": "https://github.com/a/b", "homepage": "https://galaxy.ansible.com/ui/"}
+		}]
+	}`)
+	pre := "/api/v1/remote/galaxy/"
+	links := got["links"].(map[string]any)
+	if want := pre + "api/v3/collections/a/b/versions/?limit=10&offset=10"; links["next"] != want {
+		t.Errorf("links.next = %v, want %q", links["next"], want)
+	}
+	if links["previous"] != nil {
+		t.Errorf("links.previous = %v, want null", links["previous"])
+	}
+	item := got["data"].([]any)[0].(map[string]any)
+	if want := pre + "api/v3/collections/a/b/versions/1.0.0/"; item["href"] != want {
+		t.Errorf("href = %v, want %q", item["href"], want)
+	}
+	if want := pre + "api/v3/plugin/ansible/content/published/collections/artifacts/a-b-1.0.0.tar.gz"; item["download_url"] != want {
+		t.Errorf("download_url = %v, want %q", item["download_url"], want)
+	}
+	for k, want := range map[string]string{"description": "/api/ is where it lives", "docs": "/api/v3/not-a-link/"} {
+		if item[k] != want {
+			t.Errorf("%s rewritten to %v", k, item[k])
+		}
+	}
+	meta := item["metadata"].(map[string]any)
+	if meta["repository"] != "https://github.com/a/b" || meta["homepage"] != "https://galaxy.ansible.com/ui/" {
+		t.Errorf("unrelated URLs rewritten: %v", meta)
+	}
+}
+
+func TestRewriteResponseEscapesRemoteName(t *testing.T) {
+	got := rewrite(t, models.Remote{Name: `a"b/c`, BaseURL: "https://g/"}, `{"href":"/api/x/"}`)
+	if want := "/api/v1/remote/a%22b%2Fc/api/x/"; got["href"] != want {
+		t.Errorf("href = %v, want %q", got["href"], want)
+	}
+}
+
+func TestRewriteResponseKeepsLargeNumbers(t *testing.T) {
+	out, err := (&Provider{}).RewriteResponse([]byte(`{"n":12345678901234567890}`), models.Remote{Name: "g"}, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if want := "{\"n\":12345678901234567890}\n"; string(out) != want {
+		t.Errorf("got %q, want %q", out, want)
+	}
+}
+
+func TestRewriteResponseSkipsNonJSON(t *testing.T) {
+	out, err := (&Provider{}).RewriteResponse([]byte("<html>"), models.Remote{Name: "g"}, "")
+	if err != nil || out != nil {
+		t.Errorf("got %q, %v; want nil, nil", out, err)
+	}
+}

internal/provider/provider.go

@@ -10,6 +10,9 @@ import (
 	"git.unkin.net/unkin/artifactapi/pkg/models"
 )
 
+// RemoteMountPath is the URL path remote proxies are served under.
+const RemoteMountPath = "/api/v1/remote/"
+
 type Mutability int
 
 const (
@@ -65,6 +68,17 @@ type MetadataStore interface {
 	InsertDebMetadata(ctx context.Context, meta *DebMetadata) error
 }
 
+// QueryForwarder is a remote provider whose upstream answers depend on the
+// query string (e.g. paginated JSON APIs). Only the named params for path are
+// forwarded upstream and kept in the cache key, each as the canonical value
+// its validator returns; a value the validator rejects is dropped.
+type QueryForwarder interface {
+	ForwardedQuery(path string) map[string]QueryValidator
+}
+
+// QueryValidator canonicalises a raw query value, reporting false to drop it.
+type QueryValidator func(v string) (string, bool)
+
 // RemoteServer lets a remote provider fully answer a request itself instead of
 // going through the byte-proxy engine. It is the remote-side analog of
 // LocalIndexer: a metadata-only remote (e.g. github_rpm) uses it to synthesize

internal/proxy/classifier.go

@@ -2,6 +2,7 @@ package proxy
 
 import (
 	"regexp"
+	"strings"
 	"sync"
 
 	"git.unkin.net/unkin/artifactapi/internal/provider"
@@ -37,7 +38,9 @@ func NewClassifier(p provider.Provider) *Classifier {
 	return &Classifier{provider: p}
 }
 
+// Classify judges the bare path; a forwarded query must not change the verdict.
 func (c *Classifier) Classify(remote models.Remote, path string) Classification {
+	path, _, _ = strings.Cut(path, "?")
 	if matchesAny(path, compilePatterns(remote.Blocklist)) {
 		return ClassDenied
 	}

internal/proxy/classifier_extra_test.go

@@ -38,6 +38,24 @@ func TestClassifierBranches(t *testing.T) {
 	}
 }
 
+func TestClassifierIgnoresForwardedQuery(t *testing.T) {
+	gp, err := provider.Get(models.PackageGeneric)
+	if err != nil {
+		t.Fatal(err)
+	}
+	c := NewClassifier(gp)
+	if got := c.Classify(models.Remote{Blocklist: []string{`\.exe$`}}, "x.exe?limit=1"); got != ClassDenied {
+		t.Errorf("blocklist bypassed by query: %v", got)
+	}
+	allow := models.Remote{Patterns: []string{`/versions/$`}}
+	if got := c.Classify(allow, "a/versions/?limit=1&offset=100"); got != ClassImmutable {
+		t.Errorf("allowlisted paginated path = %v, want immutable", got)
+	}
+	if got := c.Classify(models.Remote{MutablePatterns: []string{`/versions/$`}}, "a/versions/?offset=100"); got != ClassMutable {
+		t.Errorf("mutable pattern on paginated path = %v, want mutable", got)
+	}
+}
+
 func TestClassificationString(t *testing.T) {
 	for c, want := range map[Classification]string{
 		ClassImmutable:     "immutable",

internal/proxy/engine.go

@@ -216,7 +216,8 @@ func (e *Engine) Fetch(ctx context.Context, remote models.Remote, path string, p
 
 // Evict drops path from every cache layer (artifact row, index object, Redis
 // freshness and ETag keys) so the next request refetches from upstream. A
-// trailing "/*" evicts every path under that directory.
+// trailing "/*" evicts every path under that directory; a plain path also
+// drops its forwarded-query variants ("path?...").
 func (e *Engine) Evict(ctx context.Context, remoteName, path string) error {
 	prefix, wildcard := strings.CutSuffix(path, "*")
 	if wildcard && !strings.HasSuffix(prefix, "/") {
@@ -238,11 +239,23 @@ func (e *Engine) Evict(ctx context.Context, remoteName, path string) error {
 		if err := e.store.Delete(ctx, storage.IndexKey(remoteName, path)); err != nil {
 			return fmt.Errorf("delete index: %w", err)
 		}
-		return e.cache.ForgetPath(ctx, remoteName, path)
+		if err := e.cache.ForgetPath(ctx, remoteName, path); err != nil {
+			return err
+		}
+		if strings.Contains(path, "?") {
+			return nil
+		}
+		return e.evictPrefix(ctx, remoteName, path+"?")
 	}
 	// ponytail: no lock for wildcards; a Fetch already in flight under the
 	// prefix can re-cache its path after the evict. Per-path locks over a
 	// directory would close it if that ever matters.
+	return e.evictPrefix(ctx, remoteName, prefix)
+}
+
+// evictPrefix drops every cached path starting with prefix, including the
+// forwarded-query variants ("path?...") of a single path.
+func (e *Engine) evictPrefix(ctx context.Context, remoteName, prefix string) error {
 	if err := e.db.DeleteArtifactsByPrefix(ctx, remoteName, prefix); err != nil {
 		return fmt.Errorf("delete artifacts: %w", err)
 	}

internal/proxy/evict_test.go

@@ -269,3 +269,28 @@ func TestEvictWildcardClearsPrefixOnly(t *testing.T) {
 		t.Errorf("path outside prefix = %q, want cached rev1", got)
 	}
 }
+
+func TestEvictPathDropsQueryVariants(t *testing.T) {
+	requireStack(t)
+	srv, _, _ := changingUpstream(t)
+	r := rpmRemote(t, "evict-query", srv.URL)
+	const (
+		path    = "8/Everything/x86_64/repodata/repomd.xml"
+		variant = path + "?limit=10"
+		sibling = "8/Everything/x86_64/repodata/repomd.xml.asc"
+	)
+	for _, p := range []string{path, variant, sibling} {
+		fetchBody(t, r, p)
+	}
+	if err := testEngine.Evict(context.Background(), r.Name, path); err != nil {
+		t.Fatalf("evict: %v", err)
+	}
+	for _, p := range []string{path, variant} {
+		if c := layers(t, r.Name, p); c != (cached{}) {
+			t.Errorf("%s after evict = %+v, want every layer gone", p, c)
+		}
+	}
+	if c := layers(t, r.Name, sibling); c == (cached{}) {
+		t.Errorf("%s sharing the name prefix was evicted", sibling)
+	}
+}

internal/server/server.go

@@ -22,6 +22,7 @@ import (
 	"git.unkin.net/unkin/artifactapi/internal/gc"
 	"git.unkin.net/unkin/artifactapi/internal/githubauth"
 	"git.unkin.net/unkin/artifactapi/internal/provider/alpine"
+	_ "git.unkin.net/unkin/artifactapi/internal/provider/ansible"
 	_ "git.unkin.net/unkin/artifactapi/internal/provider/cargo"
 	"git.unkin.net/unkin/artifactapi/internal/provider/deb"
 	_ "git.unkin.net/unkin/artifactapi/internal/provider/docker"

pkg/models/package_type.go

@@ -17,6 +17,7 @@ const (
 	PackageTerraform    PackageType = "terraform"
 	PackageGoProxy      PackageType = "goproxy"
 	PackageCargo        PackageType = "cargo"
+	PackageAnsible      PackageType = "ansible"
 	PackageNuGet        PackageType = "nuget"
 	PackageGitHubRPM    PackageType = "github_rpm"
 	PackageGitHubDeb    PackageType = "github_deb"
@@ -36,6 +37,7 @@ var validPackageTypes = map[PackageType]bool{
 	PackageTerraform:    true,
 	PackageGoProxy:      true,
 	PackageCargo:        true,
+	PackageAnsible:      true,
 	PackageNuGet:        true,
 	PackageGitHubRPM:    true,
 	PackageGitHubDeb:    true,

pkg/models/package_type_test.go

@@ -19,6 +19,7 @@ func TestPackageTypeValid(t *testing.T) {
 		models.PackageTerraform,
 		models.PackageGoProxy,
 		models.PackageCargo,
+		models.PackageAnsible,
 		models.PackageNuGet,
 		models.PackageGitHubRPM,
 		models.PackageGitHubDeb,

ui/src/components/UsageInstructions.tsx

@@ -243,6 +243,15 @@ index = "sparse+${proxy}/"`,
         },
       ];
 
+    case 'ansible':
+      return [
+        {
+          title: 'Install collections through this Galaxy proxy',
+          language: 'bash',
+          code: `ansible-galaxy collection install community.general -s ${proxy}/api/`,
+        },
+      ];
+
     case 'nuget':
       return [
         {

ui/src/pages/Remotes.tsx

@@ -18,6 +18,7 @@ const typeColors: Record<string, 'blue' | 'green' | 'yellow' | 'red' | 'default'
   terraform: 'blue',
   goproxy: 'green',
   cargo: 'yellow',
+  ansible: 'red',
   nuget: 'blue',
 };