Files
homelab/k8s/data/cluster/ddb-cluster.yaml
T
Story Crater Bot 2499cc241f fix(ddb): add PostSync Job for per-database schema permissions
ROOT CAUSE: CNPG Database CR creates databases but doesn't grant schema
permissions to the owner role. Bootstrap DB owner 'app' retains CREATE
privilege on public schema, blocking authentik/temporal from creating tables.

SECURITY FIX: Removed insecure 'GRANT TO PUBLIC' from postInitApplicationSQL.

SOLUTION: PostSync Job connects as 'app' (DB owner) and grants schema
permissions to named roles (authentik, temporal) in their respective databases.
Runs after Database CRs reconcile, survives CNPG database recreation.

Pattern: Per-database grants via PostSync, not cluster-wide PUBLIC grants.
2026-07-23 09:02:19 -07:00

81 lines
2.1 KiB
YAML

apiVersion: postgresql.cnpg.io/v1
kind: Cluster
metadata:
name: ddb-cluster
namespace: ddb
labels:
app: postgresql
layer: data
spec:
# 3-replica cluster — distributed across control-plane nodes (cp-1, cp-2, cp-3)
# Provides HA for Forgejo and other stateful apps using shared DDB
instances: 3
# PostgreSQL 16.2
imageName: ghcr.io/cloudnative-pg/postgresql:16.2
# Bootstrap: create app database + extensions
bootstrap:
initdb:
database: app
owner: app
encoding: UTF8
localeCollate: C
localeCType: C
postInitApplicationSQL:
- CREATE EXTENSION IF NOT EXISTS vector;
- CREATE EXTENSION IF NOT EXISTS pgcrypto;
- CREATE EXTENSION IF NOT EXISTS pg_trgm;
# Per-app login roles, passwords sourced from secrets (CNPG reconciles the
# role password to match the secret). Their databases are separate Database
# CRs (see authentik-database.yaml / temporal-database.yaml) owned by these
# roles. Replaces the old helmfile post-sync user-creation hook.
managed:
roles:
- name: authentik
ensure: present
login: true
passwordSecret:
name: authentik-db-role
- name: temporal
ensure: present
login: true
passwordSecret:
name: temporal-db-role
# Disable superuser (security)
enableSuperuserAccess: false
# PostgreSQL configuration
postgresql:
parameters:
shared_buffers: "256MB"
max_parallel_workers: "4"
max_parallel_workers_per_gather: "4"
# WAL archiving for backups
archive_mode: "on"
archive_timeout: "5min"
log_destination: "csvlog"
log_directory: "/controller/log"
log_filename: "postgres"
log_rotation_age: "0"
dynamic_shared_memory_type: "posix"
# Storage on Longhorn
storage:
size: 10Gi
storageClass: longhorn
# Monitoring
monitoring:
enablePodMonitor: false
disableDefaultQueries: false
customQueriesConfigMap:
- name: cnpg-default-monitoring
key: queries
# Pod anti-affinity for spreading replicas
affinity:
podAntiAffinityType: preferred