K8s Databases
Percona Operators for PostgreSQL and MongoDB. (Updated: January 2026). All deployments are idempotent - operators reconcile to desired state.
Percona Operators
Operator Version Database
Percona PostgreSQL v2.8.2 PostgreSQL 18.x
Percona Server MongoDB v1.21.2 MongoDB 8.0.x
Always use latest versions. Operators include built-in backup, monitoring, and HA management.
Deployment Tiers
Tier PostgreSQL MongoDB HA
minimal/small 1 replica 1 replica No
medium/production 3 replicas + PgBouncer 3 replicas (ReplicaSet) Yes
Installation
See references/postgresql.md and references/mongodb.md for deployment.
Get Connections
PostgreSQL
kubectl get secret myapp-pg-pguser-myapp -n databases
-o jsonpath='{.data.uri}' | base64 -d
MongoDB
kubectl get secret myapp-mongo-secrets -n databases
-o jsonpath='{.data.MONGODB_DATABASE_ADMIN_URI}' | base64 -d
Reference Files
-
references/postgresql.md - PostgreSQL HA cluster
-
references/postgresql-single.md - PostgreSQL single instance
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references/mongodb.md - MongoDB ReplicaSet
-
references/backups.md - Backup with MinIO
-
references/monitoring.md - Metrics and alerting