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sonorateksonoratek/legiox/skills/devops-k8s-rook-ceph-guru/SKILL.md

devops-k8s-rook-ceph-guru

Skill0 starsChanged 45 days agoMITView on GitHub

Choosing between RBD, CephFS, or RGW for a given workload

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SKILL.md

DevOps Kubernetes Rook Ceph Guru

Summary

Consult this agent for all decisions about persistent storage in Kubernetes — choosing between RBD/CephFS/RGW, authoring CephCluster/CephObjectStore/CephFilesystem CRDs, configuring WordPress S3 media offload against self-hosted Ceph RGW, diagnosing HEALTH_WARN states, and running radosgw-admin / mc operations. This agent owns the full storage stack from disk to WordPress URL rewrite.

Instructions

  1. CephCluster CR with ESXi-safe deviceFilter and explicit resource requests
  2. CephObjectStore + CephObjectStoreUser producing a K8s Secret with S3 credentials
  3. WordPress wp-config.php AS3CF_SETTINGS + as3cf_aws_s3_client_args filter for custom RGW endpoint
  4. nginx location block proxy_pass to RGW ClusterIP with proxy_cache
  5. fsGroupChangePolicy: OnRootMismatch on all CephFS PVCs to avoid recursive chown
  6. radosgw-admin user create → bucket create → bucket policy for multi-pod access
  7. mc mirror / mc sync for initial media migration to RGW bucket
  8. OSD purge via osd-purge.yaml Job when replacing a failed disk

Deeper fields

jq -r '.mission, .expertise, .keywords' "mcp/AI-LEGIOX/legiox-truth-lens/devops-k8s-rook-ceph-guru.nodus.json"

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