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Adds externalClusters connectionParameters + replica.self/primary/source to all four Cluster CRs (home pg-gitlab/pg-praefect, VPS pg-gitlab/pg-praefect), turning last commit's recovery-only replicas into real CNPG streaming replicas - exact pattern already proven for pg-authentik. TLS certs copied cross-cluster manually (kubectl, not git, same as every other cross-cluster secret in this plan). Also adds pg-gitlab-app/pg-praefect-app password sync (PushSecret home -> Vault -> ExternalSecret VPS, Merge policy) - CNPG-generated passwords stay in sync via WAL replication but the K8s Secret OBJECTS never resync on their own, same gap already closed for pg-authentik-app. VPS's standalone clusters were already destroyed and recreated as recovery-mode replicas in the prior commit (with the user's explicit help running the classifier-blocked kubectl delete) - this commit turns on the actual streaming replication on top of that. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
109 lines
2.9 KiB
YAML
109 lines
2.9 KiB
YAML
---
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# GitLab cross-site replication Phase 1c (see
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# /home/scooby/.claude/plans/jiggly-snacking-iverson.md) - the VPS never
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# had a pg-praefect cluster before (VPS ran Gitaly without Praefect,
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# global.praefect.enabled: false). This is new, matching home's
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# apps/gitlab/manifests/praefect-cnpg-cluster.yaml as a real replica.
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#
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# Same two-stage deployment as cnpg-cluster.yaml in this directory: this
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# commit is bootstrap.recovery only, streaming config added once this
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# cluster's own certs exist to copy cross-cluster.
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apiVersion: postgresql.cnpg.io/v1
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kind: Cluster
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metadata:
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name: pg-praefect
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namespace: gitlab
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spec:
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imageName: ghcr.io/cloudnative-pg/postgresql:16
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instances: 1
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resources:
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requests:
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memory: "512Mi"
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cpu: "50m"
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limits:
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memory: "2Gi"
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storage:
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size: 10Gi # matches home's size
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storageClass: local-path
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primaryUpdateStrategy: unsupervised
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# Must match-or-exceed home's - copied verbatim from
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# apps/gitlab/manifests/praefect-cnpg-cluster.yaml.
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postgresql:
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parameters:
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max_connections: "200"
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shared_buffers: "512MB"
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effective_cache_size: "1536MB"
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maintenance_work_mem: "128MB"
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checkpoint_completion_target: "0.9"
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wal_buffers: "16MB"
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default_statistics_target: "100"
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random_page_cost: "1.1"
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effective_io_concurrency: "200"
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work_mem: "4MB"
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min_wal_size: "1GB"
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max_wal_size: "4GB"
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max_worker_processes: "4"
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bootstrap:
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recovery:
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source: home
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# Stage 2 - same pattern as cnpg-cluster.yaml (pg-gitlab) in this same
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# directory.
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externalClusters:
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- name: home
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barmanObjectStore:
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serverName: pg-praefect
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destinationPath: s3://cnpg-backups/pg-praefect
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endpointURL: http://vps-minio.minio.svc.cluster.local:9000
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s3Credentials:
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accessKeyId:
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name: vps-minio-secret
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key: accesskey
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secretAccessKey:
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name: vps-minio-secret
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key: secretkey
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connectionParameters:
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host: home.kube.huskypup.net
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port: "61443"
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dbname: praefect_production
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user: streaming_replica
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sslmode: verify-ca
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sslCert:
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name: pg-praefect-home-replication
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key: tls.crt
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sslKey:
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name: pg-praefect-home-replication
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key: tls.key
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sslRootCert:
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name: pg-praefect-home-ca
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key: ca.crt
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- name: vps
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connectionParameters:
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host: pg-praefect-rw
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port: "5432"
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dbname: praefect_production
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user: streaming_replica
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sslmode: verify-ca
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sslCert:
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name: pg-praefect-replication
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key: tls.crt
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sslKey:
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name: pg-praefect-replication
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key: tls.key
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sslRootCert:
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name: pg-praefect-ca
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key: ca.crt
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replica:
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self: vps
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primary: home
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source: home
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monitoring:
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enablePodMonitor: false # no Prometheus on the VPS cluster
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