docker: fix entrypoint chown guard; helm: add openshift-values.yaml (#8390)

* Enforce IAM for s3tables bucket creation

* Prefer IAM path when policies exist

* Ensure IAM enforcement honors default allow

* address comments

* Reused the precomputed principal when setting tableBucketMetadata.OwnerAccountID, avoiding the redundant getAccountID call.

* get identity

* fix

* dedup

* fix

* comments

* fix tests

* update iam config

* go fmt

* fix ports

* fix flags

* mini clean shutdown

* Revert "update iam config"

This reverts commit ca48fdbb0afa45657823d98657556c0bbf24f239.

Revert "mini clean shutdown"

This reverts commit 9e17f6baffd5dd7cc404d831d18dd618b9fe5049.

Revert "fix flags"

This reverts commit e9e7b29d2f77ee5cb82147d50621255410695ee3.

Revert "go fmt"

This reverts commit bd3241960b1d9484b7900190773b0ecb3f762c9a.

* test/s3tables: share single weed mini per test package via TestMain

Previously each top-level test function in the catalog and s3tables
package started and stopped its own weed mini instance. This caused
failures when a prior instance wasn't cleanly stopped before the next
one started (port conflicts, leaked global state).

Changes:
- catalog/iceberg_catalog_test.go: introduce TestMain that starts one
  shared TestEnvironment (external weed binary) before all tests and
  tears it down after. All individual test functions now use sharedEnv.
  Added randomSuffix() for unique resource names across tests.
- catalog/pyiceberg_test.go: updated to use sharedEnv instead of
  per-test environments.
- catalog/pyiceberg_test_helpers.go -> pyiceberg_test_helpers_test.go:
  renamed to a _test.go file so it can access TestEnvironment which is
  defined in a test file.
- table-buckets/setup.go: add package-level sharedCluster variable.
- table-buckets/s3tables_integration_test.go: introduce TestMain that
  starts one shared TestCluster before all tests. TestS3TablesIntegration
  now uses sharedCluster. Extract startMiniClusterInDir (no *testing.T)
  for TestMain use. TestS3TablesCreateBucketIAMPolicy keeps its own
  cluster (different IAM config). Remove miniClusterMutex (no longer
  needed). Fix Stop() to not panic when t is nil."

* delete

* parse

* default allow should work with anonymous

* fix port

* iceberg route

The failures are from Iceberg REST using the default bucket warehouse when no prefix is provided. Your tests create random buckets, so /v1/namespaces was looking in warehouse and failing. I updated the tests to use the prefixed Iceberg routes (/v1/{bucket}/...) via a small helper.

* test(s3tables): fix port conflicts and IAM ARN matching in integration tests

- Pass -master.dir explicitly to prevent filer store directory collision
  between shared cluster and per-test clusters running in the same process
- Pass -volume.port.public and -volume.publicUrl to prevent the global
  publicPort flag (mutated from 0 → concrete port by first cluster) from
  being reused by a second cluster, causing 'address already in use'
- Remove the flag-reset loop in Stop() that reset global flag values while
  other goroutines were reading them (race → panic)
- Fix IAM policy Resource ARN in TestS3TablesCreateBucketIAMPolicy to use
  wildcards (arn:aws:s3tables:*:*:bucket/<name>) because the handler
  generates ARNs with its own DefaultRegion (us-east-1) and principal name
  ('admin'), not the test constants testRegion/testAccountID

* docker: fix entrypoint chown guard; helm: add openshift-values.yaml

Fix a regression in entrypoint.sh where the DATA_UID/DATA_GID
ownership comparison was dropped, causing chown -R /data to run
unconditionally on every container start even when ownership was
already correct. Restore the guard so the recursive chown is
skipped when the seaweed user already owns /data — making startup
faster on subsequent runs and a no-op on OpenShift/PVC deployments
where fsGroup has already set correct ownership.

Add k8s/charts/seaweedfs/openshift-values.yaml: an example Helm
overrides file for deploying SeaweedFS on OpenShift (or any cluster
enforcing the Kubernetes restricted Pod Security Standard). Replaces
hostPath volumes with PVCs, sets runAsUser/fsGroup to 1000
(the seaweed user baked into the image), drops all capabilities,
disables privilege escalation, and enables RuntimeDefault seccomp —
satisfying OpenShift's default restricted SCC without needing a
custom SCC or root access.

Fixes #8381"

docker/entrypoint.sh

@@ -20,13 +20,17 @@ if [ "$(id -u)" = "0" ]; then
   
   DATA_UID=$(stat -c '%u' /data 2>/dev/null)
   DATA_GID=$(stat -c '%g' /data 2>/dev/null)
-  
-  # Only run chown -R if ownership doesn't match (much faster for subsequent starts)
+
+  # Only run chown -R if ownership doesn't already match (avoids expensive
+  # recursive chown on subsequent starts, and is a no-op on OpenShift when
+  # fsGroup has already set correct ownership on the PVC).
+  if [ "$DATA_UID" != "$SEAWEED_UID" ] || [ "$DATA_GID" != "$SEAWEED_GID" ]; then
     echo "Fixing /data ownership for seaweed user (uid=$SEAWEED_UID, gid=$SEAWEED_GID)"
     if ! chown -R seaweed:seaweed /data; then
       echo "Warning: Failed to change ownership of /data. This may cause permission errors." >&2
       echo "If /data is read-only or has mount issues, the application may fail to start." >&2
     fi
+  fi
   
   # Use su-exec to drop privileges and run as seaweed user
   exec su-exec seaweed "$0" "$@"