Merge pull request 'feat(site-publish): scope publication with an artifacts selection' (#7) from artifacts-input into main

Reviewed-on: #7

README.md

@@ -52,6 +52,7 @@ artifacts:
   - name: distributions
     type: static
     content_dir: dist
+    cors_origins: ['*']
     publish:
       bucket: baseline-dist
       credentials:
@@ -92,8 +93,10 @@ routes:
 ```
 
 The caller supplies each declared credential name as an environment variable
-on the action step. Credential values are passed to `aws` only through its
-environment and never appear in a logged command or process argument.
+on the action step. Names must be matched `<NAME>_S3_ACCESS_KEY` and
+`<NAME>_S3_SECRET_KEY` pairs; arbitrary environment variables cannot become
+publication credentials. Values pass to `aws` only through its environment and
+never appear in a logged command or process argument.
 
 ```yaml
       - uses: https://code.fritzlab.net/action/site-publish@v1
@@ -120,6 +123,40 @@ revalidation, or `no-store` plus a positive max-age) are rejected. Protected
 artifacts require `private` or `no-store` and cannot emit `public`.
 Metadata restamping transfers each artifact once even on a no-op publication;
 that is the cost of making policy changes effective on unchanged Garage objects.
+An immutable cache path is excluded from sync and deletion. Every object key in
+that path must contain exactly one full publication SHA-256, calculated over its
+cache policy, content type, and bytes. That content address makes concurrent
+writes identical even though Garage v2.2.0 has no conditional destination
+write. An identical retry converges; a changed object, missing digest metadata,
+wrong address, or nested policy under that immutable prefix fails publication.
+Every immutable target across every artifact is validated and published before
+any route's mutable objects change.
+Mutable default and override partitions receive their final cache policy before
+the matching prefix-scoped stale deletion, so publication never exposes a
+provisional cache policy or a pointer to a missing immutable target.
+Generated Ingress annotations and `site-publish-history.yaml` retain every
+seen bucket's access, prior route, and cumulative bucket-relative immutable key
+prefixes, including while an artifact is absent. Removed or renamed rules stay
+recorded. When a move places a retired prefix inside the new sync scope, its
+immutable subtrees are excluded; a current-file collision fails publication.
+The bucket-keyed history rejects a protected-to-public transition even when the
+artifact is renamed; publishing that artifact publicly requires a new bucket.
+Legacy single-surface is public for this downgrade check. Removing or renaming
+an immutable rule preserves its prior URLs; current mutable content at one of
+those paths is rejected instead of replacing it.
+
+Artifact input directories must be pairwise disjoint after filesystem
+resolution. Publication stops before build or upload if one contains another or
+escapes the repository. Symlinked roots, components, and descendants are also rejected, preventing
+protected input from entering a public artifact through dereference. Split
+storage endpoints are pinned to Garage, and each website
+authority is derived from its bucket; a site cannot expose an arbitrary backend.
+
+`cors_origins` is reconciled as a bucket policy on every split publication. Values are either `*`
+or HTTPS origins; browser access is limited to `GET` and `HEAD`. Omitting the field removes stale
+CORS from that bucket. Protected artifacts cannot allow wildcard CORS. All immutable objects and
+all bucket CORS policies complete before mutable channels change; if any policy write fails, the
+policies already attempted are restored to their pre-publication values.
 
 Each split route gets a bucket-specific `<bucket>.web.sjc001.fritzlab.net`
 ExternalName Service annotated to disable pass-host-header and a separate Ingress. Route
@@ -197,10 +234,46 @@ my-site.fritzlab.net  300  IN  CNAME  gateway.sjc001.fritzlab.net.
 | `garage-admin-token` | legacy aliases only | | Garage admin API token (`admin-token` from `garage-rpc-secret` in `storage` ns) |
 | `garage-admin-endpoint` | no | `http://garage.storage.svc:3903` | Garage admin API endpoint |
 | `username` | no | `ci-bot` | Gitea username |
+| `artifacts` | no | every declared artifact | Space- or comma-separated subset of `site.yaml` artifacts to build and publish |
 
 Org secrets in `websites`: `CI_BOT_TOKEN`, `GARAGE_S3_ACCESS_KEY`,
 `GARAGE_S3_SECRET_KEY`, `GARAGE_ADMIN_TOKEN`.
 
+### Publishing a subset of artifacts
+
+A repository whose branches ship on different cadences names the ones this run
+owns:
+
+```yaml
+- uses: https://code.fritzlab.net/action/site-publish@<sha>
+  with:
+    token: ${{ secrets.CI_BOT_TOKEN }}
+    artifacts: catalogue
+```
+
+Selection scopes the build and the S3 publication only. Ingresses, Services,
+Certificates and the immutable-path history are always rendered from the whole
+`site.yaml`, so a scoped run cannot retire another artifact's route or delete
+its bucket contents. Credentials are resolved for the selected artifacts alone,
+so a workflow need not carry secrets for artifacts it does not publish.
+
+What a scoped run may **not** do is move an artifact it is not publishing. The
+generated route contract in `site-publish-history.yaml` is written from the
+whole `site.yaml`, and `access` there is a replacement rather than a union — so
+recording a change nothing published would turn intent into a fact that
+`validate_route_migrations` then refuses to undo. A run whose `site.yaml`
+changes an unselected artifact's route path, access or artifact name is refused
+before the first bucket is touched, naming both contracts: publish that artifact
+in the same run. For the same reason a scoped run cannot introduce an artifact
+that has no published history yet.
+
+Two more refusals, both before any bucket changes: an undeclared name, and
+`enabled: false` with a selection, because decommissioning is whole-site.
+
+One consequence to know: CORS reconciliation is scoped too, since a scoped run
+holds no credential for the other bucket. A `cors_origins:` change lands with
+that artifact's next publish, not on the merge that edits `site.yaml`.
+
 ## Tools
 
 - **`new-site.sh`** — create a new site: Gitea repo, Garage bucket, web hosting enabled.

action.yaml

@@ -28,6 +28,13 @@ inputs:
     description: Gitea username for git operations
     required: false
     default: ci-bot
+  artifacts:
+    # Scopes building and publishing only. Routes, Ingresses and the immutable
+    # -path history are always rendered from the whole site.yaml, so a scoped
+    # run never retires another artifact's route.
+    description: Space- or comma-separated subset of site.yaml artifacts to build and publish (default is every declared artifact)
+    required: false
+    default: ''
 runs:
   using: composite
   steps:
@@ -44,6 +51,7 @@ runs:
         ACTION_DIR: ${{ github.action_path }}
         GITHUB_RUN_NUMBER: ${{ github.run_number }}
         CI_BOT_USER: ${{ inputs.username }}
+        SITE_ARTIFACTS: ${{ inputs.artifacts }}
 
     - name: Deploy
       shell: bash
@@ -61,3 +69,4 @@ runs:
         GARAGE_ADMIN_ENDPOINT: ${{ inputs.garage-admin-endpoint }}
         GARAGE_ADMIN_TOKEN: ${{ inputs.garage-admin-token }}
         GITHUB_RUN_NUMBER: ${{ github.run_number }}
+        SITE_ARTIFACTS: ${{ inputs.artifacts }}

scripts/build.py

@@ -5,7 +5,14 @@ import subprocess
 import tempfile
 from pathlib import Path
 
-from utils import EXCLUDE_FILES, env, parse_site_yaml, run
+from utils import (
+    EXCLUDE_FILES,
+    env,
+    parse_site_yaml,
+    run,
+    selected_artifacts,
+    validate_artifact_inputs,
+)
 
 
 def build_artifact(site_dir, artifact):
@@ -64,5 +71,7 @@ def cmd_build():
         print("Site disabled — skipping build")
         return
 
-    for artifact in cfg["artifacts"]:
+    validate_artifact_inputs(site_dir, cfg)
+
+    for artifact in selected_artifacts(cfg):
         build_artifact(site_dir, artifact)

scripts/deploy.py

@@ -1,13 +1,20 @@
 """Deploy phase — S3 sync, manifest rendering, alias reconcile."""
 
+import fnmatch
+import hashlib
 import json
+import mimetypes
 import os
+import re
 import shutil
+import subprocess
 import tempfile
 from pathlib import Path
 from urllib.error import HTTPError, URLError
 from urllib.request import Request, urlopen
 
+import yaml
+
 from utils import (
     NAMESPACE,
     clone_apps,
@@ -18,6 +25,9 @@ from utils import (
     parse_site_yaml,
     render_templates,
     run,
+    selected_artifacts,
+    selected_routes,
+    validate_artifact_inputs,
 )
 
 GARAGE_ADMIN_ENDPOINT = os.environ.get(
@@ -39,17 +49,113 @@ def validate_artifact_output(site_dir, artifact):
 
 
 def validate_publication_environment(cfg):
-    """Resolve every declared credential before the first bucket is changed."""
-    for artifact in cfg["artifacts"]:
+    """Resolve every credential this run needs before the first bucket is changed."""
+    for artifact in selected_artifacts(cfg):
         env(artifact["credentials"]["access_key_env"])
         env(artifact["credentials"]["secret_key_env"])
     if cfg["compatibility"] and cfg["aliases"] and not os.environ.get("GARAGE_ADMIN_TOKEN"):
         die("GARAGE_ADMIN_TOKEN is required when aliases are declared")
 
 
-def s3_sync(artifact, route, site_dir, credential_env_names=None):
-    endpoint = artifact["s3_endpoint"]
-    html_dir = site_dir / artifact["build_dir"]
+def _is_immutable(rule):
+    return "immutable" in {
+        part.strip().lower().split("=", 1)[0]
+        for part in rule["cache_control"].split(",")
+    }
+
+
+def _aws_capture(args, aws_env):
+    """Run a non-streaming AWS request without exposing environment credentials."""
+    print(f"  $ {' '.join(str(part) for part in args)}")
+    return subprocess.run(args, env=aws_env, text=True, capture_output=True, check=False)
+
+
+def _immutable_head(endpoint, bucket, key, aws_env):
+    args = ["aws", "--endpoint-url", endpoint, "s3api", "head-object",
+            "--bucket", bucket, "--key", key, "--output", "json"]
+    result = _aws_capture(args, aws_env)
+    if result.returncode == 0:
+        return json.loads(result.stdout)
+    error = f"{result.stdout}\n{result.stderr}"
+    if any(marker in error for marker in ("404", "Not Found", "NoSuchKey")):
+        return None
+    raise RuntimeError(f"head-object failed for s3://{bucket}/{key}: {error.strip()}")
+
+
+def _immutable_digests(source, cache_control, content_type):
+    with source.open("rb") as stream:
+        content_digest = hashlib.file_digest(stream, "sha256").hexdigest()
+    publication = hashlib.sha256()
+    publication.update(cache_control.encode())
+    publication.update(b"\0")
+    publication.update(content_type.encode())
+    publication.update(b"\0")
+    with source.open("rb") as stream:
+        for block in iter(lambda: stream.read(1024 * 1024), b""):
+            publication.update(block)
+    return content_digest, publication.hexdigest()
+
+
+def _same_immutable_object(info, content_digest, publication_digest, cache_control, content_type):
+    metadata = {key.lower(): value for key, value in (info.get("Metadata") or {}).items()}
+    return (
+        metadata.get("sha256") == content_digest
+        and metadata.get("publication-sha256") == publication_digest
+        and info.get("CacheControl") == cache_control
+        and info.get("ContentType") == content_type
+    )
+
+
+def publish_immutable_file(endpoint, bucket, key, source, cache_control, aws_env):
+    """Publish a content-addressed key; identical retries converge."""
+    content_type = mimetypes.guess_type(source.name)[0] or "application/octet-stream"
+    content_digest, publication_digest = _immutable_digests(source, cache_control, content_type)
+    address_digests = re.findall(r"(?<![0-9a-f])([0-9a-f]{64})(?![0-9a-f])", key.lower())
+    if address_digests != [publication_digest]:
+        raise RuntimeError(
+            f"immutable key must contain its one publication SHA-256 {publication_digest}: "
+            f"s3://{bucket}/{key}"
+        )
+    existing = _immutable_head(endpoint, bucket, key, aws_env)
+    if existing is not None:
+        if _same_immutable_object(
+            existing, content_digest, publication_digest, cache_control, content_type,
+        ):
+            print(f"  Immutable object already matches: s3://{bucket}/{key}")
+            return False
+        raise RuntimeError(f"immutable object differs or lacks publisher digest: s3://{bucket}/{key}")
+    args = ["aws", "--endpoint-url", endpoint, "s3api", "put-object",
+            "--bucket", bucket, "--key", key, "--body", str(source),
+            "--content-type", content_type, "--cache-control", cache_control,
+            "--metadata", f"sha256={content_digest},publication-sha256={publication_digest}"]
+    result = _aws_capture(args, aws_env)
+    if result.returncode == 0:
+        return True
+    error = f"{result.stdout}\n{result.stderr}"
+    raise RuntimeError(f"put-object failed for s3://{bucket}/{key}: {error.strip()}")
+
+
+def publish_immutable_rule(artifact, route, rule, html_dir, aws_env):
+    """Publish one immutable cache partition without overwrite or deletion."""
+    rule_root = html_dir / rule["path"]
+    child_paths = [candidate["path"] for candidate in artifact["cache_rules"]
+                   if candidate["path"].startswith(f"{rule['path'].rstrip('/')}/")]
+    object_prefix = route["path"].strip("/")
+    for source in sorted(path for path in rule_root.rglob("*") if path.is_file()):
+        relative = source.relative_to(html_dir).as_posix()
+        if any(relative == child or relative.startswith(f"{child}/") for child in child_paths):
+            continue
+        if any(fnmatch.fnmatch(relative, pattern) for pattern in artifact["excludes"]):
+            continue
+        key = "/".join(part for part in (object_prefix, relative) if part)
+        publish_immutable_file(
+            artifact["s3_endpoint"], artifact["bucket"], key, source,
+            rule["cache_control"], aws_env,
+        )
+
+
+def publication_aws_env(artifact, credential_env_names=None):
+    """Build the route-scoped AWS environment without leaking other credentials."""
     access_key = env(artifact["credentials"]["access_key_env"])
     secret_key = env(artifact["credentials"]["secret_key_env"])
     aws_env = os.environ.copy()
@@ -63,11 +169,160 @@ def s3_sync(artifact, route, site_dir, credential_env_names=None):
         "AWS_SECRET_ACCESS_KEY": secret_key,
         "AWS_DEFAULT_REGION": os.environ.get("AWS_DEFAULT_REGION", "sjc001"),
     })
+    return aws_env
+
+
+def configure_cors(bucket, origins, endpoint, aws_env):
+    """Reconcile read-only browser access without exposing publication credentials."""
+    if origins is None:
+        return
+    config = None
+    if origins:
+        config = {
+            "CORSRules": [{
+                "AllowedOrigins": origins,
+                "AllowedMethods": ["GET", "HEAD"],
+                "AllowedHeaders": ["*"],
+                "ExposeHeaders": ["ETag"],
+                "MaxAgeSeconds": 3600,
+            }],
+        }
+    set_cors_configuration(bucket, config, endpoint, aws_env)
+
+
+def set_cors_configuration(bucket, config, endpoint, aws_env):
+    """Apply an exact bucket CORS configuration, or remove it when absent."""
+    if config is None:
+        run([
+            "aws", "--endpoint-url", endpoint, "s3api", "delete-bucket-cors",
+            "--bucket", bucket,
+        ], env=aws_env)
+        return
+    with tempfile.NamedTemporaryFile("w", suffix=".json", encoding="utf-8") as handle:
+        json.dump(config, handle)
+        handle.flush()
+        run([
+            "aws", "--endpoint-url", endpoint, "s3api", "put-bucket-cors",
+            "--bucket", bucket, "--cors-configuration", f"file://{handle.name}",
+        ], env=aws_env)
+
+
+def get_cors_configuration(bucket, endpoint, aws_env):
+    """Read the exact bucket CORS configuration for rollback."""
+    result = _aws_capture([
+        "aws", "--endpoint-url", endpoint, "s3api", "get-bucket-cors",
+        "--bucket", bucket, "--output", "json",
+    ], aws_env)
+    if result.returncode == 0:
+        try:
+            config = json.loads(result.stdout)
+        except json.JSONDecodeError as error:
+            raise RuntimeError(f"get-bucket-cors returned invalid JSON for {bucket}") from error
+        if not isinstance(config, dict) or not isinstance(config.get("CORSRules"), list):
+            raise RuntimeError(f"get-bucket-cors returned an invalid policy for {bucket}")
+        return config
+    error = f"{result.stdout}\n{result.stderr}"
+    if "NoSuchCORSConfiguration" in error:
+        return None
+    raise RuntimeError(f"get-bucket-cors failed for {bucket}: {error.strip()}")
+
+
+def reconcile_artifact_cors(artifacts, credential_env_names=None):
+    """Reconcile all policies, restoring the prior set if any write fails."""
+    snapshots = []
+    for artifact in artifacts:
+        if artifact["cors_origins"] is None:
+            continue
+        aws_env = publication_aws_env(artifact, credential_env_names)
+        snapshots.append((
+            artifact,
+            aws_env,
+            get_cors_configuration(artifact["bucket"], artifact["s3_endpoint"], aws_env),
+        ))
+
+    attempted = []
+    try:
+        for artifact, aws_env, previous in snapshots:
+            attempted.append((artifact, aws_env, previous))
+            configure_cors(
+                artifact["bucket"], artifact["cors_origins"], artifact["s3_endpoint"], aws_env,
+            )
+    except Exception as error:
+        rollback_errors = []
+        for artifact, aws_env, previous in reversed(attempted):
+            try:
+                set_cors_configuration(
+                    artifact["bucket"], previous, artifact["s3_endpoint"], aws_env,
+                )
+            except Exception as rollback_error:
+                rollback_errors.append(f"{artifact['bucket']}: {rollback_error}")
+        if rollback_errors:
+            raise RuntimeError(
+                f"CORS reconciliation failed ({error}); rollback also failed for "
+                f"{'; '.join(rollback_errors)}"
+            ) from error
+        raise
+
+
+def publish_route_immutables(artifact, route, site_dir, credential_env_names=None):
+    """Publish one route's immutable partitions during the global preflight."""
+    html_dir = site_dir / artifact["build_dir"]
+    aws_env = publication_aws_env(artifact, credential_env_names)
+    for rule in artifact["cache_rules"]:
+        if _is_immutable(rule):
+            publish_immutable_rule(artifact, route, rule, html_dir, aws_env)
+
+
+def immutable_key_prefixes(artifact, route):
+    """Return immutable partitions as bucket-relative key prefixes."""
+    route_prefix = route["path"].strip("/")
+    return [
+        "/".join(part for part in (route_prefix, rule["path"]) if part)
+        for rule in artifact["cache_rules"] if _is_immutable(rule)
+    ]
+
+
+def retained_immutable_paths(artifact, route, previous_contract):
+    """Carry all bucket history forward so later route moves cannot delete it."""
+    previous_paths = previous_contract["immutable_paths"] if previous_contract else []
+    return sorted(set(previous_paths) | set(immutable_key_prefixes(artifact, route)))
+
+
+def retired_immutable_filters(artifact, route, html_dir, previous_contract):
+    """Protect historical immutable keys that fall inside the current sync scope."""
+    if not previous_contract:
+        return []
+    current_prefix = route["path"].strip("/")
+    filters = []
+    current_immutable = set(immutable_key_prefixes(artifact, route))
+    for immutable_path in previous_contract["immutable_paths"]:
+        if immutable_path in current_immutable:
+            continue
+        if current_prefix:
+            marker = f"{current_prefix}/"
+            if not immutable_path.startswith(marker):
+                continue
+            retired_path = immutable_path[len(marker):]
+        else:
+            retired_path = immutable_path
+        collision = html_dir / retired_path
+        if collision.exists() and any(path.is_file() for path in collision.rglob("*")):
+            raise RuntimeError(
+                f"current artifact collides with retired immutable partition: {retired_path}"
+            )
+        filters.extend(("--exclude", f"{retired_path}/*"))
+    return filters
+
+
+def s3_sync(artifact, route, site_dir, credential_env_names=None, previous_contract=None):
+    endpoint = artifact["s3_endpoint"]
+    html_dir = site_dir / artifact["build_dir"]
+    aws_env = publication_aws_env(artifact, credential_env_names)
     bucket = artifact["bucket"]
     object_prefix = route["path"].strip("/")
-    bucket_destination = f"s3://{bucket}/"
-    destination = f"{bucket_destination}{object_prefix + '/' if object_prefix else ''}"
+    destination = f"s3://{bucket}/{object_prefix + '/' if object_prefix else ''}"
     default_cache = next(rule["cache_control"] for rule in artifact["cache_rules"] if not rule["path"])
+    immutable_paths = [rule["path"] for rule in artifact["cache_rules"] if _is_immutable(rule)]
     # `excludes` are patterns (site.yaml `excludes:` list) that should never
     # be uploaded *and* should never be deleted from the bucket — escape hatch
     # for assets managed out-of-band (e.g. large PDFs uploaded via aws-cli).
@@ -75,41 +330,30 @@ def s3_sync(artifact, route, site_dir, credential_env_names=None):
     if artifact["excludes"]:
         print(f"Excluding patterns: {artifact['excludes']}")
     print(f"Syncing artifact {artifact['name']} → {destination} via {endpoint}")
-    # `sync --delete` handles new/changed/orphaned files. Partitioned
-    # `cp --recursive` calls then re-upload each file once to refresh metadata
-    # (cache-control, content-type) on objects sync skipped as unchanged.
+    # Upload with the final cache policy before cleanup. Sync and deletion are
+    # scoped to the same current route prefix and cache partition. A route move
+    # leaves its old bucket partition intact but unreachable after the old
+    # Ingress disappears, while stale mutable keys on the serving prefix are
+    # deleted. Immutable subtrees are structurally excluded. `cp --recursive`
+    # refreshes metadata atomically per object before `sync --delete` removes
+    # stale keys without ever exposing new bytes under a provisional policy.
     # A no-op deploy therefore transfers the artifact bytes once.
     # AWS CLI guesses Content-Type from file extension on local→S3 uploads,
     # so a fresh upload always carries the right MIME type.
-    stage = None
-    sync_source = html_dir
-    sync_excludes = exclude_args
-    if object_prefix:
-        stage = tempfile.TemporaryDirectory()
-        sync_source = Path(stage.name)
-        staged_artifact = sync_source / object_prefix
-        staged_artifact.parent.mkdir(parents=True, exist_ok=True)
-        staged_artifact.symlink_to(html_dir.resolve(), target_is_directory=True)
-        sync_excludes = [arg for pattern in artifact["excludes"]
-                         for arg in ("--exclude", f"{object_prefix}/{pattern}")]
-    try:
-        # Sync the complete bucket authority so moving a route prefix also
-        # deletes objects under its old prefix instead of leaving them public.
-        run(["aws", "--endpoint-url", endpoint, "s3", "sync", f"{sync_source}/", bucket_destination,
-             "--delete", "--only-show-errors", "--cache-control", default_cache,
-             *sync_excludes], env=aws_env)
-    finally:
-        if stage:
-            stage.cleanup()
-    print("Re-stamping metadata on all objects...")
     specific_paths = [rule["path"] for rule in artifact["cache_rules"] if rule["path"]]
     default_filters = [arg for path in specific_paths for arg in ("--exclude", f"{path}/*")]
+    retired_filters = retired_immutable_filters(artifact, route, html_dir, previous_contract)
     run(["aws", "--endpoint-url", endpoint, "s3", "cp", f"{html_dir}/", destination,
          "--recursive", "--only-show-errors", "--cache-control", default_cache,
-         *default_filters, *exclude_args], env=aws_env)
+         *default_filters, *retired_filters, *exclude_args], env=aws_env)
+    run(["aws", "--endpoint-url", endpoint, "s3", "sync", f"{html_dir}/", destination,
+         "--delete", "--only-show-errors", "--cache-control", default_cache,
+         *default_filters, *retired_filters, *exclude_args], env=aws_env)
     for rule in artifact["cache_rules"]:
         if not rule["path"]:
             continue
+        if _is_immutable(rule):
+            continue
         include = f"{rule['path'].rstrip('/')}/*"
         child_filters = [arg for path in specific_paths
                          if path.startswith(f"{rule['path'].rstrip('/')}/")
@@ -119,6 +363,9 @@ def s3_sync(artifact, route, site_dir, credential_env_names=None):
         run(["aws", "--endpoint-url", endpoint, "s3", "cp", f"{html_dir}/", destination,
              "--recursive", "--only-show-errors", "--cache-control", rule["cache_control"],
              "--exclude", "*", "--include", include, *child_filters, *exclude_args], env=aws_env)
+        run(["aws", "--endpoint-url", endpoint, "s3", "sync", f"{html_dir}/", destination,
+             "--delete", "--only-show-errors", "--cache-control", rule["cache_control"],
+             "--exclude", "*", "--include", include, *child_filters, *exclude_args], env=aws_env)
 
 
 def garage_admin(method, path, token, body=None):
@@ -167,16 +414,32 @@ def ensure_bucket_aliases(site_name, aliases, admin_token):
             raise
 
 
-def render_site_manifests(site_name, action_dir, app_dir, manifests_dir, cfg):
+def render_site_manifests(
+    site_name, action_dir, app_dir, manifests_dir, cfg, previous_contracts=None,
+):
     """Always re-render manifests from current site.yaml. Templates own
     domain + aliases, so changes propagate without manual edits."""
     manifests_dir.mkdir(parents=True, exist_ok=True)
     artifact_by_name = {artifact["name"]: artifact for artifact in cfg["artifacts"]}
     routes = []
+    previous_contracts = previous_contracts or {}
+    next_contracts = {bucket: dict(contract)
+                      for bucket, contract in previous_contracts.items()}
     for route in cfg["routes"]:
         artifact = artifact_by_name[route["artifact"]]
         resource_name = k8s_name(site_name) if cfg["compatibility"] else f"{k8s_name(site_name)}-{route['name']}"
-        routes.append({**route, "resource_name": resource_name, "artifact_config": artifact})
+        previous = previous_contracts.get(artifact["bucket"])
+        immutable_paths = retained_immutable_paths(artifact, route, previous)
+        next_contracts[artifact["bucket"]] = {
+            "path": route["path"],
+            "access": "public" if route["access"] == "legacy" else route["access"],
+            "artifact": route["artifact"],
+            "immutable_paths": immutable_paths,
+        }
+        routes.append({
+            **route, "resource_name": resource_name, "artifact_config": artifact,
+            "immutable_paths_json": json.dumps(immutable_paths, separators=(",", ":")),
+        })
     template_vars = {
         "site": site_name,
         "site_k8s": k8s_name(site_name),
@@ -187,6 +450,126 @@ def render_site_manifests(site_name, action_dir, app_dir, manifests_dir, cfg):
         "routes": routes,
     }
     render_templates(action_dir, template_vars, app_dir, manifests_dir)
+    if not cfg["compatibility"] or previous_contracts:
+        (app_dir / "site-publish-history.yaml").write_text(yaml.safe_dump(
+            {"version": 1, "buckets": next_contracts}, sort_keys=True,
+        ))
+
+
+def _validate_route_contract(bucket, contract, path):
+    expected = {"path", "access", "artifact", "immutable_paths"}
+    if (not isinstance(bucket, str) or not bucket or not isinstance(contract, dict)
+            or set(contract) != expected
+            or contract.get("access") not in {"public", "protected"}
+            or not isinstance(contract.get("path"), str)
+            or not contract["path"].startswith("/")
+            or not isinstance(contract.get("artifact"), str) or not contract["artifact"]
+            or not isinstance(contract.get("immutable_paths"), list)
+            or any(not isinstance(item, str) or not item or item.startswith("/")
+                   or any(part in {"", ".", ".."} for part in item.split("/"))
+                   for item in contract["immutable_paths"])):
+        raise RuntimeError(f"invalid site-publish route history in {path}")
+    return {
+        "path": contract["path"], "access": contract["access"],
+        "artifact": contract["artifact"],
+        "immutable_paths": sorted(set(contract["immutable_paths"])),
+    }
+
+
+def previous_route_contracts(app_dir):
+    """Read bucket-keyed route history from generated Ingresses."""
+    history_path = app_dir / "site-publish-history.yaml"
+    if history_path.exists():
+        document = yaml.safe_load(history_path.read_text())
+        if (not isinstance(document, dict) or set(document) != {"version", "buckets"}
+                or document["version"] != 1 or not isinstance(document["buckets"], dict)):
+            raise RuntimeError(f"invalid site-publish route history in {history_path}")
+        return {
+            bucket: _validate_route_contract(bucket, contract, history_path)
+            for bucket, contract in document["buckets"].items()
+        }
+    contracts = {}
+    manifests = app_dir / "manifests"
+    if not manifests.exists():
+        return contracts
+    for path in sorted(manifests.glob("ingress*.yaml")):
+        document = yaml.safe_load(path.read_text()) or {}
+        annotations = document.get("metadata", {}).get("annotations", {})
+        artifact = annotations.get("site-publish.fritzlab.net/artifact")
+        access = annotations.get("site-publish.fritzlab.net/access")
+        bucket = annotations.get("site-publish.fritzlab.net/bucket")
+        immutable_paths_json = annotations.get("site-publish.fritzlab.net/immutable-paths")
+        route_path = annotations.get("site-publish.fritzlab.net/route-path")
+        values = (artifact, access, bucket, immutable_paths_json, route_path)
+        if all(value is None for value in values):
+            continue
+        if (not all(isinstance(value, str) for value in values)
+                or access not in {"public", "protected"} or not route_path.startswith("/")):
+            raise RuntimeError(f"invalid site-publish route history in {path}")
+        try:
+            immutable_paths = json.loads(immutable_paths_json)
+        except json.JSONDecodeError as exc:
+            raise RuntimeError(f"invalid site-publish route history in {path}") from exc
+        if not isinstance(immutable_paths, list) or any(not isinstance(item, str) for item in immutable_paths):
+            raise RuntimeError(f"invalid site-publish route history in {path}")
+        if bucket in contracts:
+            raise RuntimeError(f"duplicate site-publish route history for bucket {bucket}")
+        contracts[bucket] = _validate_route_contract(bucket, {
+            "path": route_path, "access": access, "artifact": artifact,
+            "immutable_paths": immutable_paths,
+        }, path)
+    return contracts
+
+
+def validate_route_migrations(cfg, previous_contracts):
+    artifacts = {artifact["name"]: artifact for artifact in cfg["artifacts"]}
+    for route in cfg["routes"]:
+        artifact = artifacts[route["artifact"]]
+        previous = previous_contracts.get(artifact["bucket"])
+        if (previous and previous["access"] == "protected"
+                and route["access"] in {"public", "legacy"}
+        ):
+            raise RuntimeError(
+                f"artifact {route['artifact']} cannot become public while reusing protected "
+                f"bucket {artifact['bucket']}"
+            )
+
+
+def validate_scoped_history(cfg, previous_contracts):
+    """A scoped run may not record a route contract it did not publish.
+
+    render_site_manifests advances the stored contract for every route in
+    site.yaml, and `access` is overwritten rather than unioned the way
+    immutable_paths is. Without this, a catalogue-only publish could write a
+    protected access for the distributions bucket that nothing published, and
+    validate_route_migrations would then refuse to put that bucket back —
+    unpublished intent turned into an irreversible fact.
+    """
+    chosen = set(cfg["selected"])
+    if len(chosen) == len(cfg["artifacts"]):
+        return
+    artifact_by_name = {artifact["name"]: artifact for artifact in cfg["artifacts"]}
+    for route in cfg["routes"]:
+        if route["artifact"] in chosen:
+            continue
+        artifact = artifact_by_name[route["artifact"]]
+        previous = previous_contracts.get(artifact["bucket"])
+        if previous is None:
+            raise RuntimeError(
+                f"a scoped run cannot introduce artifact {route['artifact']}; "
+                f"publish it in the same run"
+            )
+        current = {
+            "path": route["path"],
+            "access": "public" if route["access"] == "legacy" else route["access"],
+            "artifact": route["artifact"],
+        }
+        recorded = {key: previous[key] for key in current}
+        if recorded != current:
+            raise RuntimeError(
+                f"a scoped run may not change unselected artifact {route['artifact']}'s route "
+                f"contract ({recorded} -> {current}); publish it in the same run"
+            )
 
 
 def deploy_static(site_name, site_dir, action_dir, token, cfg):
@@ -194,21 +577,43 @@ def deploy_static(site_name, site_dir, action_dir, token, cfg):
     credential_env_names = {
         name for artifact in cfg["artifacts"] for name in artifact["credentials"].values()
     }
+    # Publication is scoped to the selected artifacts; the rendered route
+    # contract is not. Manifests and immutable-path history stay whole, so a
+    # partial publish can never retire another artifact's route or bucket.
+    publishing = selected_routes(cfg)
     validate_publication_environment(cfg)
-    for artifact in cfg["artifacts"]:
+    for artifact in selected_artifacts(cfg):
         validate_artifact_output(site_dir, artifact)
-    for route in cfg["routes"]:
-        s3_sync(artifact_by_name[route["artifact"]], route, site_dir, credential_env_names)
-    if cfg["compatibility"]:
-        ensure_bucket_aliases(site_name, cfg["aliases"], os.environ.get("GARAGE_ADMIN_TOKEN"))
-
     apps_dir = clone_apps(token)
     app_dir = apps_dir / "sjc001" / "websites" / site_name
     manifests_dir = app_dir / "manifests"
+    previous_contracts = previous_route_contracts(app_dir)
+    validate_route_migrations(cfg, previous_contracts)
+    validate_scoped_history(cfg, previous_contracts)
+    # Complete immutable work across the whole publication before any route's
+    # mutable pointers can change. Partial immutable success is safe; mixing a
+    # new route with an old route after a later immutable failure is not.
+    for route in publishing:
+        publish_route_immutables(
+            artifact_by_name[route["artifact"]], route, site_dir, credential_env_names,
+        )
+    # Reconcile every browser-read policy before publishing mutable content.
+    # A CORS failure therefore cannot leave a new channel pointing at a release
+    # whose cross-origin assets browsers cannot consume.
+    reconcile_artifact_cors(selected_artifacts(cfg), credential_env_names)
+    for route in publishing:
+        s3_sync(
+            artifact_by_name[route["artifact"]], route, site_dir, credential_env_names,
+            previous_contracts.get(artifact_by_name[route["artifact"]]["bucket"]),
+        )
+    if cfg["compatibility"]:
+        ensure_bucket_aliases(site_name, cfg["aliases"], os.environ.get("GARAGE_ADMIN_TOKEN"))
 
-    render_site_manifests(site_name, action_dir, app_dir, manifests_dir, cfg)
+    render_site_manifests(
+        site_name, action_dir, app_dir, manifests_dir, cfg, previous_contracts,
+    )
 
-    commit_and_push(apps_dir, f"Deploy {site_name}")
+    commit_and_push(apps_dir, f"Deploy {site_name}", token)
 
 
 def decommission(site_name, token, buckets=None):
@@ -219,7 +624,7 @@ def decommission(site_name, token, buckets=None):
         print(f"No manifests for {site_name} — nothing to remove")
         return
     shutil.rmtree(site_path)
-    commit_and_push(apps_dir, f"Decommission {site_name}")
+    commit_and_push(apps_dir, f"Decommission {site_name}", token)
     for bucket in buckets or [site_name]:
         print(f"Bucket {bucket} and its objects are NOT purged automatically.")
         print(f"  garage bucket delete {bucket} --yes")
@@ -235,8 +640,11 @@ def cmd_deploy():
     cfg = parse_site_yaml(site_dir)
 
     if not cfg["enabled"]:
+        if len(cfg["selected"]) != len(cfg["artifacts"]):
+            die("a disabled site decommissions whole; drop the artifacts selection")
         print("Site disabled — running decommission...")
         decommission(site_name, token, [artifact["bucket"] for artifact in cfg["artifacts"]])
         return
 
+    validate_artifact_inputs(site_dir, cfg)
     deploy_static(site_name, site_dir, action_dir, token, cfg)

scripts/utils.py

@@ -1,5 +1,6 @@
 """Shared utilities for the site-publish action."""
 
+import ipaddress
 import os
 import re
 import shutil
@@ -26,6 +27,7 @@ EXCLUDE_FILES = {
 VALID_TYPES = {"static", "hugo", "mkdocs"}
 NAME_RE = re.compile(r"^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?$")
 ENV_RE = re.compile(r"^[A-Z_][A-Z0-9_]*$")
+ACCESS_KEY_ENV_RE = re.compile(r"^([A-Z][A-Z0-9_]*)_S3_ACCESS_KEY$")
 BUCKET_RE = re.compile(r"^[a-z0-9](?:[a-z0-9.-]{1,61}[a-z0-9])?$")
 MIDDLEWARE_RE = re.compile(r"^[A-Za-z0-9](?:[A-Za-z0-9_-]{0,61}[A-Za-z0-9])?$")
 
@@ -103,6 +105,55 @@ def _strings(value, label):
     return values
 
 
+def _cors_origins(value, label):
+    origins = _list(value, label)
+    if any(not isinstance(item, str) or not item for item in origins):
+        raise ConfigError(f"{label} must be a list of non-empty strings")
+    canonical = []
+    for origin in origins:
+        if origin == "*":
+            canonical.append(origin)
+            continue
+        parsed = urlparse(origin)
+        try:
+            port = parsed.port
+        except ValueError:
+            raise ConfigError(f"{label} must contain '*' or canonical HTTPS origins") from None
+        if parsed.scheme != "https" or not parsed.hostname or parsed.path or parsed.params or (
+            parsed.query or parsed.fragment or parsed.username or parsed.password
+        ):
+            raise ConfigError(f"{label} must contain '*' or canonical HTTPS origins")
+        try:
+            address = ipaddress.ip_address(parsed.hostname)
+        except ValueError:
+            try:
+                hostname = parsed.hostname.encode("idna").decode("ascii")
+            except UnicodeError:
+                raise ConfigError(
+                    f"{label} must contain '*' or canonical HTTPS origins"
+                ) from None
+            try:
+                _hostname(hostname, f"{label} hostname")
+            except ConfigError:
+                raise ConfigError(
+                    f"{label} must contain '*' or canonical HTTPS origins"
+                ) from None
+        else:
+            if getattr(address, "scope_id", None) is not None:
+                raise ConfigError(
+                    f"{label} must contain '*' or canonical HTTPS origins"
+                )
+            hostname = f"[{address.compressed}]" if address.version == 6 else address.compressed
+        canonical.append(f"https://{hostname}{f':{port}' if port not in (None, 443) else ''}")
+    if len(canonical) != len(set(canonical)):
+        raise ConfigError(f"{label} must not contain duplicate canonical origins")
+    if "*" in canonical and len(canonical) != 1:
+        raise ConfigError(f"{label} wildcard must be the only origin")
+    if origins != canonical:
+        raise ConfigError(f"{label} must contain '*' or canonical HTTPS origins")
+    return origins
+
+
 def _hostname(value, label):
     if not isinstance(value, str) or len(value) > 253 or value.endswith("."):
         raise ConfigError(f"{label} must be a lowercase DNS hostname without a trailing dot")
@@ -214,6 +265,7 @@ def _legacy_config(raw, site_name):
         "website_authority": "garage-s3.storage.svc.k8s.sjc001.fritzlab.net",
         "credentials": {"access_key_env": "AWS_ACCESS_KEY_ID", "secret_key_env": "AWS_SECRET_ACCESS_KEY"},
         "cache_rules": [{"path": "", "cache_control": DEFAULT_CACHE_CONTROL}],
+        "cors_origins": None,
     }
     return {
         "version": 1,
@@ -222,6 +274,7 @@ def _legacy_config(raw, site_name):
         "aliases": _aliases(raw.get("aliases"), raw["domain"]),
         "enabled": raw.get("enabled", True),
         "artifacts": [artifact],
+        "selected": ["site"],
         "routes": [{
             "name": "site", "path": "/", "artifact": "site", "access": "legacy",
             "access_middleware": None,
@@ -233,12 +286,16 @@ def _legacy_config(raw, site_name):
 def _artifact(item, index):
     label = f"artifacts[{index}]"
     item = _mapping(item, label)
-    _known_keys(item, {"name", "type", "content_dir", "tidy", "excludes", "publish", "cache"}, label)
+    _known_keys(
+        item,
+        {"name", "type", "content_dir", "tidy", "excludes", "publish", "cache", "cors_origins"},
+        label,
+    )
     name = item.get("name")
     if not isinstance(name, str) or not NAME_RE.fullmatch(name):
         raise ConfigError(f"{label}.name must be a DNS label")
     publish = _mapping(item.get("publish"), f"{label}.publish")
-    _known_keys(publish, {"bucket", "endpoint", "website_authority", "credentials"}, f"{label}.publish")
+    _known_keys(publish, {"bucket", "credentials"}, f"{label}.publish")
     bucket = publish.get("bucket")
     if not isinstance(bucket, str) or not BUCKET_RE.fullmatch(bucket):
         raise ConfigError(f"{label}.publish.bucket is not a valid bucket name")
@@ -250,6 +307,15 @@ def _artifact(item, index):
         if not isinstance(value, str) or not ENV_RE.fullmatch(value):
             raise ConfigError(f"{label}.publish.credentials.{key} must name an environment variable")
         normalized_credentials[key] = value
+    access_match = ACCESS_KEY_ENV_RE.fullmatch(normalized_credentials["access_key_env"])
+    expected_secret = (
+        f"{access_match.group(1)}_S3_SECRET_KEY" if access_match else None
+    )
+    if normalized_credentials["secret_key_env"] != expected_secret:
+        raise ConfigError(
+            f"{label}.publish.credentials must be a matched "
+            "<NAME>_S3_ACCESS_KEY and <NAME>_S3_SECRET_KEY pair"
+        )
     cache = _mapping(item.get("cache"), f"{label}.cache")
     _known_keys(cache, {"rules"}, f"{label}.cache")
     rules = _list(cache.get("rules"), f"{label}.cache.rules")
@@ -270,10 +336,15 @@ def _artifact(item, index):
     if "" not in paths:
         raise ConfigError(f"{label}.cache.rules must declare a '/' default")
     cache_rules.sort(key=lambda rule: (len(PurePosixPath(rule["path"]).parts), rule["path"]))
-    authority = _hostname(
-        publish.get("website_authority", f"{bucket}.{DEFAULT_WEBSITE_SUFFIX}"),
-        f"{label}.publish.website_authority",
-    )
+    immutable_paths = [rule["path"] for rule in cache_rules
+                       if "immutable" in {part.strip().lower().split("=", 1)[0]
+                                          for part in rule["cache_control"].split(",")}]
+    if "" in immutable_paths:
+        raise ConfigError(f"{label}.cache.rules immutable paths must be narrower than '/'")
+    for path in immutable_paths:
+        if any(other.startswith(f"{path}/") for other in paths):
+            raise ConfigError(f"{label}.cache.rules cannot nest another policy under immutable /{path}")
+    authority = f"{bucket}.{DEFAULT_WEBSITE_SUFFIX}"
     if not isinstance(item.get("tidy", True), bool):
         raise ConfigError(f"{label}.tidy must be a boolean")
     return {
@@ -284,10 +355,14 @@ def _artifact(item, index):
         "excludes": _strings(item.get("excludes") or [], f"{label}.excludes"),
         "build_dir": f".site-publish/{name}/html",
         "bucket": bucket,
-        "s3_endpoint": _endpoint(publish.get("endpoint", DEFAULT_S3_ENDPOINT), f"{label}.publish.endpoint"),
+        "s3_endpoint": DEFAULT_S3_ENDPOINT,
         "website_authority": authority,
         "credentials": normalized_credentials,
         "cache_rules": cache_rules,
+        "cors_origins": (
+            _cors_origins(item["cors_origins"], f"{label}.cors_origins")
+            if "cors_origins" in item else []
+        ),
     }
 
 
@@ -374,11 +449,42 @@ def _validate_multi(cfg):
                 raise ConfigError(f"protected route {route['name']} cannot use shared-cache max-age")
             if route["access"] == "public" and "private" in directives:
                 raise ConfigError(f"public route {route['name']} cannot use private cache policy")
+        if route["access"] == "protected" and "*" in artifact["cors_origins"]:
+            raise ConfigError(
+                f"protected route {route['name']} cannot allow wildcard CORS"
+            )
     root = next(route for route in routes if route["path"] == "/")
     if any(route["access"] == "protected" for route in routes) and root["access"] == "public":
         raise ConfigError("a public '/' catch-all would expose unmatched protected content")
 
 
+def _artifact_selection(cfg, requested):
+    """Resolve the subset of declared artifacts this run publishes."""
+    declared = [artifact["name"] for artifact in cfg["artifacts"]]
+    if not requested or not requested.strip():
+        return declared
+    names = [part for part in re.split(r"[,\s]+", requested.strip()) if part]
+    unknown = sorted({name for name in names if name not in declared})
+    if unknown:
+        raise ConfigError(
+            "artifacts selects undeclared artifact(s) " + ", ".join(unknown)
+            + "; site.yaml declares " + ", ".join(declared)
+        )
+    return [name for name in declared if name in set(names)]
+
+
+def selected_artifacts(cfg):
+    """Artifacts this run builds and publishes, in declaration order."""
+    chosen = set(cfg["selected"])
+    return [artifact for artifact in cfg["artifacts"] if artifact["name"] in chosen]
+
+
+def selected_routes(cfg):
+    """Routes whose artifact this run publishes, in route order."""
+    chosen = set(cfg["selected"])
+    return [route for route in cfg["routes"] if route["artifact"] in chosen]
+
+
 def normalize_site_config(raw, site_name):
     raw = _mapping(raw, "site.yaml")
     domain = _hostname(raw.get("domain"), "domain")
@@ -404,12 +510,49 @@ def normalize_site_config(raw, site_name):
         "routes": sorted(routes, key=lambda item: (-len(item["path"]), item["path"], item["name"])),
     }
     _validate_multi(cfg)
+    cfg["selected"] = [artifact["name"] for artifact in cfg["artifacts"]]
     for route in cfg["routes"]:
         if len(f"{k8s_name(site_name)}-{route['name']}") > 63:
             raise ConfigError(f"route {route['name']} makes the generated Service name exceed 63 characters")
     return cfg
 
 
+def validate_artifact_inputs(site_dir, cfg):
+    """Reject source containment before a public or protected build starts."""
+    if cfg["compatibility"]:
+        return
+    root = Path(site_dir).resolve()
+    sources = []
+    for artifact in cfg["artifacts"]:
+        declared = root
+        for component in Path(artifact["content_dir"]).parts:
+            declared /= component
+            if declared.is_symlink():
+                raise ConfigError(
+                    f"artifact {artifact['name']} content_dir contains symlink component: "
+                    f"{declared.relative_to(root)}"
+                )
+        source = declared.resolve()
+        if source != root and root not in source.parents:
+            raise ConfigError(
+                f"artifact {artifact['name']} content_dir resolves outside the repository"
+            )
+        if source.exists():
+            symlink = next((path for path in source.rglob("*") if path.is_symlink()), None)
+            if symlink is not None:
+                raise ConfigError(
+                    f"artifact {artifact['name']} build input contains symlink: "
+                    f"{symlink.relative_to(root)}"
+                )
+        sources.append((artifact["name"], source))
+    for index, (name, source) in enumerate(sources):
+        for other_name, other_source in sources[index + 1:]:
+            if source == other_source or source in other_source.parents or other_source in source.parents:
+                raise ConfigError(
+                    f"artifact build inputs overlap after resolution: {name} and {other_name}"
+                )
+
+
 def parse_site_yaml(site_dir, site_name=None):
     path = Path(site_dir) / "site.yaml"
     if not path.exists():
@@ -420,12 +563,14 @@ def parse_site_yaml(site_dir, site_name=None):
     try:
         with open(path) as stream:
             cfg = normalize_site_config(yaml.safe_load(stream), site_name)
+        cfg["selected"] = _artifact_selection(cfg, os.environ.get("SITE_ARTIFACTS"))
     except (ConfigError, yaml.YAMLError) as exc:
         die(str(exc))
     print("Site config:")
     print(f"  domain: {cfg['domain']}")
     print(f"  contract: {cfg['compatibility'] or 'split-surface-v2'}")
     print(f"  artifacts: {[item['name'] for item in cfg['artifacts']]}")
+    print(f"  publishing: {cfg['selected']}")
     print(f"  routes: {[(item['path'], item['access']) for item in cfg['routes']]}")
     return cfg
 
@@ -436,10 +581,7 @@ def clone_apps(token):
     apps_dir = Path("/tmp/apps-deploy")
     if apps_dir.exists():
         shutil.rmtree(apps_dir)
-    clone_env = os.environ.copy()
-    clone_env["CI_BOT_TOKEN"] = token
-    clone_env["GIT_ASKPASS"] = str(Path(__file__).with_name("git-askpass.sh"))
-    clone_env["GIT_TERMINAL_PROMPT"] = "0"
+    clone_env = git_auth_env(token)
     url = f"https://{user}@{GITEA_HOST}/{APPS_REPO}.git"
     run(["git", "clone", "--depth", "1", url, str(apps_dir)],
         display=f"git clone --depth 1 https://{user}@{GITEA_HOST}/{APPS_REPO}.git {apps_dir}", env=clone_env)
@@ -477,13 +619,23 @@ def render_templates(action_dir, template_vars, app_dir, manifests_dir):
         print(f"  Rendered {out_name}.j2 -> {destination}")
 
 
-def commit_and_push(apps_dir, message):
+def git_auth_env(token):
+    """Return credential-safe Git authentication shared by clone and push."""
+    auth_env = os.environ.copy()
+    auth_env["CI_BOT_TOKEN"] = token
+    auth_env["GIT_ASKPASS"] = str(Path(__file__).with_name("git-askpass.sh"))
+    auth_env["GIT_TERMINAL_PROMPT"] = "0"
+    return auth_env
+
+
+def commit_and_push(apps_dir, message, token=None):
     run(["git", "-C", str(apps_dir), "add", "-A"])
     result = subprocess.run(["git", "-C", str(apps_dir), "diff", "--cached", "--quiet"], check=False)
     if result.returncode == 0:
         print("No manifest changes to commit")
         return False
     run(["git", "-C", str(apps_dir), "commit", "-m", message])
-    run(["git", "-C", str(apps_dir), "push"])
+    push_env = git_auth_env(token) if token else None
+    run(["git", "-C", str(apps_dir), "push"], env=push_env)
     print("Manifests pushed — ArgoCD will sync")
     return True

templates/ingress.yaml.j2

@@ -4,6 +4,13 @@ metadata:
   name: {{ route.resource_name }}
   namespace: {{ namespace }}
   annotations:
+{%- if not compatibility %}
+    site-publish.fritzlab.net/artifact: {{ route.artifact | tojson }}
+    site-publish.fritzlab.net/access: {{ route.access | tojson }}
+    site-publish.fritzlab.net/bucket: {{ route.artifact_config.bucket | tojson }}
+    site-publish.fritzlab.net/immutable-paths: {{ route.immutable_paths_json | tojson }}
+    site-publish.fritzlab.net/route-path: {{ route.path | tojson }}
+{%- endif %}
     traefik.ingress.kubernetes.io/router.middlewares: https-redirect@file,retry-upstream@file{% if route.access_middleware %},{{ route.access_middleware }}@file{% endif %}{% for m in route.middlewares %},{{ m }}@file{% endfor %}
 spec:
   ingressClassName: traefik

tests/fixtures/split-site.yaml

@@ -15,6 +15,7 @@ artifacts:
   - name: distributions
     type: static
     content_dir: dist
+    cors_origins: ['*']
     publish:
       bucket: baseline-dist
       credentials: