The BucketAccess model only offered three coarse levels (read-only/read-write/
full) applied to the whole bucket. Real grants often need to be scoped to a key
prefix, limited to a source network or TLS, restricted to specific actions, or
expressed as an arbitrary S3 statement. RGW (Reef 18.2+/Squid) honours the S3
bucket-policy features to do all of this; expose them on BucketAccess while
keeping the level as the ergonomic default.
- add BucketAccess spec fields: paths (key-prefix scoping), actions (action
override), conditions (sourceIPs + secureTransportOnly), rawStatements
(arbitrary S3 statements with the principal injected)
- extend ceph.Grant + BuildBucketPolicy to render prefixed object resources,
custom-action statements, S3 condition blocks, and raw statements, keeping
output deterministic (sorted, stable sids)
- translate the new spec fields into grants in the Bucket controller and
fingerprint grants so distinct fine-grained BucketAccess objects no longer
collapse on UID+level alone
- regenerate deepcopy + CRDs; add config/samples/04-access-fine-grained.yaml
- cover paths, action override, conditions, raw statements and determinism in
policy_test.go; document the fields in the README
Claude-Session: https://claude.ai/code/session_016CEncETbf8cvy1PhsHfFHM
Adds a Kubernetes operator that provisions Ceph RGW (S3) buckets and
access keys declaratively through the Ceph manager dashboard REST API.
Three CRDs in group ceph.unkin.net/v1alpha1:
- ObjectStoreUser: creates an RGW user, delivers its key pair to a Secret
- Bucket: creates an S3 bucket owned by an ObjectStoreUser; owns the
bucket's aggregate S3 policy (union of all BucketAccess grants)
- BucketAccess: grants read-only/read-write/full access, provisioning a
dedicated user (or reusing a referenced one) and delivering RW/RO keys
The internal/ceph client wraps the dashboard /api/auth, /api/rgw/user and
/api/rgw/bucket endpoints with lazy token auth and re-auth on 401. Bucket
policies are rendered deterministically and applied via the bucket
policy API (Reef 18.2+). Credentials come from the cephrgw-credentials
Secret via env. Includes generated CRDs/RBAC, samples, kind manifests,
Woodpecker CI, and docs/ceph-setup.md covering the required Ceph
dashboard account, RGW wiring and permissions.
unkinben
benvin