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2025-12-27 17:05:10 +01:00

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YAML

---
apiVersion: postgresql.cnpg.io/v1
kind: Cluster
metadata:
name: postgresql
namespace: database-system
spec:
instances: 1 # Start with 1, scale to 3 later for HA
# PostgreSQL version
imageName: ghcr.io/cloudnative-pg/postgresql:17.2
# Bootstrap
bootstrap:
initdb:
database: postgres
owner: postgres
secret:
name: postgres-superuser
# Storage
storage:
storageClass: longhorn
size: 50Gi
# Resources
resources:
requests:
memory: "512Mi"
cpu: "500m"
limits:
memory: "4Gi"
cpu: "2"
# Monitoring
monitoring:
enablePodMonitor: true
# Backup configuration (optional but recommended)
#backup:
# barmanObjectStore:
# destinationPath: s3://your-bucket/postgresql-backups/
# Configure your S3-compatible storage here
# Or skip backups for now and add later
# PostgreSQL configuration
postgresql:
parameters:
max_connections: "200"
shared_buffers: "256MB"
effective_cache_size: "1GB"
maintenance_work_mem: "64MB"
checkpoint_completion_target: "0.9"
wal_buffers: "16MB"
default_statistics_target: "100"
random_page_cost: "1.1"
effective_io_concurrency: "200"
work_mem: "2621kB"
min_wal_size: "1GB"
max_wal_size: "4GB"