feat(github): GitHub Enterprise Server support - #3107
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #3107 +/- ##
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+ Coverage 84.23% 84.25% +0.02%
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Files 2037 2039 +2
Lines 200692 200997 +305
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- Misses 23490 23494 +4
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…dmap - website/docs/cli/environment-variables.mdx: new "GitHub Enterprise Server (GHES)" section documenting GITHUB_SERVER_URL, GITHUB_API_URL, and the three ATMOS_TOOLCHAIN_* variables, with defaults and a GHES example; a note that the github.com/org/repo shorthand stays github.com-only. - website/docs/cli/configuration/toolchain/index.mdx: a "GitHub Enterprise Server (GHES)" section explaining why toolchain traffic has its own env vars, separate from GITHUB_SERVER_URL/GITHUB_API_URL. - website/docs/cli/configuration/auth/index.mdx: a short note that GITHUB_TOKEN/ATMOS_GITHUB_TOKEN follow GITHUB_SERVER_URL/GITHUB_API_URL, while the github/sts (Atmos Pro) integration is unaffected (its GitHub App is registered against public github.com). - website/blog/2026-09-09-github-enterprise-server-support.mdx: changelog post (label: minor). - website/src/data/roadmap.js: shipped milestone under the Vendoring & Resilience initiative, linked to the changelog post. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…n allowlist GitHub Actions exports GITHUB_SERVER_URL=https://github.com on every github.com runner, so honoring it verbatim made bare github.com receive the token in CI but not on a developer machine, and failed pkg/http's default-allowlist tests on the PR shards. Extend the allowlist only for a non-default (GHES) host; sending the token to github.com release-asset URLs remains the toolchain client's explicit decision. Pin both variables in the default-behavior tests and cover GITHUB_SERVER_URL directly. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
- ConvertToRawURL: an explicit github.com URL now always resolves against the public endpoints, even when RepoEndpoints/GITHUB_SERVER_URL points at a different GHES host, instead of being misrouted to "<GHES>/raw/...". - CustomGitDetector.injectToken and toolchain set.go's makeGitHubRequest now skip attaching a GitHub token over a non-https scheme, so a GITHUB_SERVER_URL or ATMOS_TOOLCHAIN_GITHUB_API_URL configured with "http://" can't leak the token in cleartext. - isLocalSource recognizes an SCP-style Git URI (git@host:org/repo.git) naming the configured GHES host as remote, fixing workdir metadata that recorded SourceTypeLocal for such sources. - toolchainHostMatcher (aqua registry) now also matches the toolchain endpoints' API host (Endpoints.IsAPIHost, new), so a corporate mirror with separate web/API hosts still gets the token attached to API requests. - matchGitHubEndpoints normalizes case/default-port before comparing against "github.com", so a case variant or explicit ":443" no longer silently drops a requested registry ref. - Clarify GHES shorthand support differences across imports, vendoring, AI skill sources, and `atmos git clone` in the blog post and environment variables reference. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…3107) Fixes four functional/security gaps CodeRabbit flagged on the second review pass: - newScopedClient now honors an API-only endpoint override (e.g. ATMOS_TOOLCHAIN_GITHUB_API_URL pointed at a corporate proxy while the server host stays github.com) instead of silently ignoring it. - RepoEndpoints/ToolchainEndpoints derive "<server>/api/v3" as the API URL default for a non-default (GHES/mirror) server host instead of falling back to the public api.github.com, which could otherwise send a GHES-scoped token to the public API. - applyGitHubRef no longer mis-parses an already-converted GHES raw URL (".../raw/owner/repo/ref/path") as an owner/repo web URL, which produced a doubled ".../raw/raw/..." URL. - makeGitHubRequest's http.Client now strips the Authorization header on any redirect whose target is not https, closing an HTTPS-to-HTTP downgrade path where net/http's default policy would otherwise preserve the header across a same-host redirect. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…en test Two CI regressions from the review fixes: - injectToken applied the new https-only gate before the pre-existing "URL already has user credentials" check, so ssh://git@github.com/... sources logged a different debug line and two vendor goldens no longer matched. Check for existing credentials first (the more specific condition); the https-only rule still applies to URLs without userinfo. tests/snapshots/ is byte-identical to main again. - TestMakeGitHubRequestOmitsTokenOverHTTP left an explicit "" override of "github-token" on the global viper instance via its deferred Set, which shadows the env binding and made TestGitHubTokenEnvBinding fail whenever it ran afterwards under -shuffle/-race. Use the package's setupTest / teardownTest isolation instead. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…e, not pkg/github Review feedback: the ATMOS_TOOLCHAIN_AQUA_REGISTRY_URL resolver lived in pkg/github only because the aqua package imports pkg/github and importing back would cycle, which forced a duplicated copy of the upstream registry literal. Own it where it belongs instead: aqua.RegistryBaseURL() reuses the now-exported github.ResolveEndpointURL helper and the package's own default, the installer calls aqua (a dependency direction that does not cycle), and the duplicated constant and its "keep in sync" comment are gone. The env var name and behavior are unchanged; the tests move with the function. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…o its host, parse hosts instead of substring matches, escape URL components Addresses eight CodeRabbit findings on PR #3107 (GHES support): - pkg/github/client.go: newGitHubClientForEndpoints now centrally withholds the token whenever the target Endpoints' API URL is not https (Endpoints.AllowsToken / github.TokenForEndpoints), instead of relying on each caller to check the scheme itself. ResolveEndpointURL still accepts http:// on purpose (the acceptance/unit test suites point endpoints at local httptest/httpmock servers over plain HTTP); only token attachment is gated, not endpoint resolution. - pkg/github/client.go: newToolchainGitHubClient now only forwards GetGitHubToken() (resolved without regard to host) to ToolchainEndpoints when ToolchainEndpoints resolves to the same host as RepoEndpoints (tokenForToolchainHost), so a GHES-scoped token is never sent to the public github.com toolchain defaults or to an unrelated toolchain mirror. - pkg/toolchain/set.go and pkg/toolchain/registry/aqua/aqua.go apply the same repo-token/toolchain-host rule to makeGitHubRequest and toolchainHostMatcher respectively, without touching the existing, intentional corporate-mirror opt-in behavior (ATMOS_TOOLCHAIN_GITHUB_URL/ API_URL explicitly configured). - internal/ci/releasenotes/github.go, pkg/ci/cache/github/backend.go, and pkg/ci/artifact/github/store.go now route their tokens through TokenForEndpoints before attaching them to a request/client built against RepoEndpoints(). - pkg/github/client.go: the explicit-public-URL branch in ConvertToRawURL now compares hosts via publicGitHubEndpoints.IsHost instead of a literal string equality, so case, a trailing dot, and the default https port are recognized as github.com too. - pkg/github/endpoints.go: RawURL, ReleaseAssetURL, and ArchiveURL now percent-encode every owner/repo/ref/tag/asset component (and each "/"-separated segment of RawURL's file path independently), so reserved characters can no longer break the generated URL. - pkg/downloader/file_downloader.go and pkg/vendor/uri.go replace whole-URL substring host checks with proper URL parsing and Endpoints.IsHost comparisons, so a host string appearing only in an unrelated URL's path or query is never misclassified as GitHub/GHES. - pkg/utils/yaml_include_by_extension.go: isGitHubURL now parses the URL and compares via RepoEndpoints().IsHost(parsed.Hostname()) instead of a literal host-prefix string match, so a GITHUB_SERVER_URL with a non-default port is recognized; the net/url import is aliased to neturl to avoid shadowing the existing "url" parameter name. - website/docs/cli/environment-variables.mdx documents both token rules (https-only, and same-host-as-repo for the toolchain endpoints). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…public includes under GHES Addresses eight CodeRabbit threads on PR #3107 (GitHub Enterprise Server support): - Adopt port-aware hostOf/normalizeHost (from osterman/github-http-facade) so Endpoints.Host preserves a non-default port instead of always dropping it via url.URL.Hostname(). Fixed the remaining Hostname()-vs-IsHost/IsAPIHost call sites in pkg/git/branch.go, pkg/downloader/file_downloader.go, and pkg/vendor/uri.go to compare the full authority instead. - Add pkg/github/transport.go: scopedTokenTransport, an http.RoundTripper that re-validates a request's own URL (scheme + host) on every RoundTrip call -- including each hop of an automatic redirect -- before attaching or removing Authorization. This replaces golang.org/x/oauth2's static token source in newGitHubClientForEndpoints (pkg/github/client.go), pkg/ci/artifact/github's NewStore, and pkg/ci/cache/github's newRESTClient, none of which previously re-checked a redirected request's destination: oauth2.Transport re-adds Authorization unconditionally on every call, forwarding a token across a cross-host redirect or a same-host https-to-http downgrade. - Harden pkg/toolchain/set.go's makeGitHubRequest/CheckRedirect and pkg/toolchain/pr_artifact.go's downloadPRArtifact/CheckRedirect the same way: validate scheme and host (via RepoEndpoints/ToolchainEndpoints, or the new github.IsApprovedGitHubDownloadHost predicate) before attaching the token to the initial request, and re-validate on every redirect hop instead of a `strings.Contains(host, "github")` substring check. - pkg/utils/yaml_include_by_extension.go: a public github.com blob URL now still converts to raw content when GHES is configured, via the new github.IsPublicGitHubHost helper matched in addition to RepoEndpoints. - pkg/github/archived.go's ParseOwnerRepo already compared the full u.Host; added a GHES-with-port regression test. - pkg/toolchain/registry/aqua/aqua_test.go: isolate TestToolchainHostMatcher_DifferentAPIHost from the ambient GITHUB_SERVER_URL/GITHUB_API_URL environment. - Document the final token-scoping rule in website/docs/cli/environment-variables.mdx: a token is attached only when the request actually being sent (re-checked on every redirect hop, not decided once from the configured URL) is https and its host is an approved one, per endpoint set. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…s, and single-label hosts; rate-limit hints from effective auth - pkg/downloader/custom_git_detector.go: Detect compared only the portless parsedURL.Hostname() against the configured GHES host, so a GITHUB_SERVER_URL configured with a non-default port was rejected before token injection ever ran. isConfiguredGitHubHost now takes both the portless host (for the literal github.com/gitlab.com/bitbucket.org comparisons) and the full authority with port (for the GHES IsHost check), threaded through isSupportedHost, shouldInjectTokenForHost, injectToken, resolveToken, and getDefaultUsername. resolveToken's per-provider cascades were split into resolveGitHubToken/ resolveBitbucketToken/resolveGitLabToken to keep cyclomatic complexity in check after the added parameter touched the whole function. - pkg/git/branch.go: githubRepositoryPath compared an SCP-style remote (git@host:org/repo.git, which carries no port of its own) against RepoEndpoints().Host, which keeps a non-default port -- so the prefix could never match a GHES remote configured with a port. The SCP-style comparison now uses the new Endpoints.Hostname() helper (portless); the URL-style comparison keeps using the full host via IsHost. - pkg/github/endpoints.go: added Endpoints.Hostname(), returning Host with any port stripped, for callers that need to compare against a value (like an SCP-style remote's host) that can never carry a port of its own. - pkg/provisioner/source/provision_hook.go: scpStyleHostPattern required a dot in the host, so a single-label GHES host (e.g. GITHUB_SERVER_URL=https://ghe) was misclassified as a local path via its SCP-style remote (git@ghe:org/repo.git). The pattern now captures the full user@host: token without requiring a dot; the new isConfiguredGHESHost helper (using Endpoints.Hostname(), for the same portless reason as pkg/git/branch.go) still gates classification so an unrelated single-label host is not misclassified as remote. - pkg/github/releases.go: checkRateLimitBeforeFetch selected its error hints from GetGitHubTokenFromEnv(), which doesn't reflect the client's actual effective auth -- e.g. the `gh auth token` fallback, or a repo-scoped token withheld from a cross-host toolchain client (tokenForToolchainHost). The client constructors (newGitHubClient, newGitHubClientWithToken, newToolchainGitHubClient, newGitHubClientForEndpoints) now also return whether the client is effectively authenticated, threaded through getReleasesWithClient into checkRateLimitBeforeFetch, which selects hints from that instead. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…port the doc example vars Review feedback on #3107: SCP-style sources cannot carry a port, so Format 3 matches the configured GHES host by hostname while the HTTPS forms keep the full authority; a non-default-port SSH test is added. The toolchain doc's shell examples now export the variables so a following atmos command actually inherits them. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…erywhere, stricter endpoint bases, GHES test coverage - pkg/downloader/custom_git_detector.go: rewriteSCPURL now compares the SCP host token against RepoEndpoints().Hostname() (portless) instead of IsHost (port-bearing), since SCP syntax can never carry a port; the default "git" username is still injected for a GHES host configured on a non-default port. - pkg/ci/cache/github/backend.go: ownerRepoFromLocalGit now dispatches on whether the remote URL is SCP-style (info.RepoUrl has no "://") vs URL-style, matching SCP remotes via RepoEndpoints().Hostname() and keeping the port-aware IsHost check for URL-style remotes. - pkg/provisioner/source/provision_hook.go: userless SCP remotes for a dotted GHES host (e.g. "ghe.example.com:org/repo.git") are now recognized as remote, matching pkg/vendor's scpURLPattern and rewriteSCPURL; a single-label host still requires the "user@" prefix so "dir:file" stays local. - pkg/toolchain/set.go: removed the server-host-only token prefilter in makeGitHubRequest; requestAllowsToken (checked per-request and on every redirect hop) is now the single gate, so a token is still sent when the toolchain API URL matches the approved repo API host even if the toolchain server URL differs. - pkg/github/endpoints.go (security): normalizeHost drops both port 80 and 443 unconditionally, so "https://host:80" could wrongly match the bare configured host. Added normalizeHostForScheme plus IsHostForScheme/IsAPIHostForScheme/ IsUploadHostForScheme, which only strip a port when it is the actual default for the request's own scheme; pkg/github/transport.go's requestAllowsToken (the token-attach gate) now uses these instead of the scheme-unaware IsHost/IsAPIHost/IsUploadHost. IsHost's own behavior is unchanged for callers without a scheme. - pkg/github/endpoints.go: ResolveEndpointURL now rejects a base URL carrying a RawQuery, Fragment, or User component, falling back to the default like any other unparsable value. - pkg/github/client.go: ConvertToRawURL's "already a raw URL" check now compares normalizeHost(u.Host) instead of a literal string, so case, a trailing dot, and an explicit ":443" all still match raw.githubusercontent.com. - pkg/helm/plugin, pkg/toolchain/registry, pkg/utils, pkg/http: added/extended test coverage for the owner/repo shorthand under a configured GHES host, a GHES acceptance case for createRegistry, a same-host-different-port rejection case, and clarified WithGitHubHostMatcher's doc to note it bypasses both GITHUB_API_URL and GITHUB_SERVER_URL. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…aw-URL cases Always set GITHUB_SERVER_URL (even to "") in table-driven subtests instead of skipping the call when the fixture value is empty, so the default-github.com cases don't inherit an ambient value from the parent test process. Also converts the GHES raw-URL and SCP-style-host assertions into table-driven tests with t.Run for clearer per-case failure output.
… creation Add direct unit tests for Endpoints.Hostname/IsAPIHost/IsUploadHost, IsApprovedGitHubDownloadHost, IsPublicGitHubHost, newToolchainGitHubClient, NewToolchainArtifactFetcher, applyGitHubRef's unparseable-URL branch, and isKnownHostFileURL's unparseable-URL branch under a configured GHES host.
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In `@pkg/toolchain/set.go`:
- Around line 519-520: Update requestAllowsToken to use scheme-aware endpoint
matching by replacing the IsHost and IsAPIHost checks with IsHostForScheme and
IsAPIHostForScheme, passing req.URL.Scheme along with req.URL.Host; preserve the
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what
pkg/github/endpoints.go) that reads the standardGITHUB_SERVER_URL/GITHUB_API_URLvariables (the ones GitHub Actions exports on both github.com and GitHub Enterprise Server) and route every place Atmos talked to your repositories through it: the CI provider, remote imports and vendoring raw fetches, the GitHub API client (releases, tags, artifacts, archived checks), the token host allowlist, and token injection for git operations.atmos toolchain installdoes not followGITHUB_SERVER_URL. It gets its own env-only knobs —ATMOS_TOOLCHAIN_GITHUB_URL,ATMOS_TOOLCHAIN_GITHUB_API_URL,ATMOS_TOOLCHAIN_AQUA_REGISTRY_URL— for corporate release proxies/mirrors.github.com/<owner>/<repo>/releases/download/...); the allowlist previously covered onlyapi.github.com,raw.githubusercontent.com, anduploads.github.com, so those fetches went out unauthenticated even with a token configured. Verified GitHub returns the same 302 with or without the header, and Go stripsAuthorizationon the cross-host redirect to the storage host.github.com/org/repodetection deliberately stays github.com-only (a bare hostname can't be told from a relative path); documented. Noatmos.yamlchanges, no schema changes — env vars only, all defaulting to today's github.com behavior.why
pkg/ci/providers/githubandpkg/http(extend, don't fork).httptestserver (next PR in this stack), which is how we stop the test matrix from depending on live GitHub.references
Summary by CodeRabbit
New Features
GITHUB_SERVER_URLandGITHUB_API_URLendpoint configuration.ATMOS_TOOLCHAIN_*variables.Security
Documentation