Stéphane Tailland
dc13738e86
The runtime for the estate's autonomous agents. Postgres as a StatefulSet with its own claim, n8n behind a cert-manager certificate and the nginx ingress, and both secrets in Vault behind an AppRole scoped to n8n/* alone. The certificate is issued into the cluster rather than copied into the repo, so the private key never reaches git. The CA certificate is committed and mounted as NODE_EXTRA_CA_CERTS, so a workflow can reach keycloak and the domain gateways without anyone disabling verification to make it work. One replica and strategy: Recreate, both deliberate — n8n needs Redis and queue mode before a second scheduler is safe, and a ReadWriteOnce volume deadlocks a rolling update. N8N_ENCRYPTION_KEY is generated once and kept in Vault. Regenerating it does not re-encrypt the stored credentials, it orphans them. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
72 lines
2.1 KiB
YAML
72 lines
2.1 KiB
YAML
# A StatefulSet rather than a Deployment: one identity, one volume, and no
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# window where two pods hold the same data directory. The volumeClaimTemplate
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# also means the claim is not deleted with the workload — losing the workflows
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# to a `kubectl delete deploy` would be an avoidable way to lose them.
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: n8n-postgres
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namespace: n8n
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spec:
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serviceName: n8n-postgres
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replicas: 1
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selector:
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matchLabels:
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app: n8n-postgres
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template:
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metadata:
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labels:
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app: n8n-postgres
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spec:
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securityContext:
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fsGroup: 999
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containers:
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- name: postgres
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image: postgres:16.10-alpine
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ports:
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- name: postgres
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containerPort: 5432
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env:
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- name: POSTGRES_USER
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value: n8n
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- name: POSTGRES_DB
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value: n8n
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- name: POSTGRES_PASSWORD
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valueFrom:
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secretKeyRef:
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name: n8n-secrets
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key: DB_PASSWORD
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# The image initialises into this directory. Naming a subdirectory
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# of the mount rather than the mount itself keeps initdb away from
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# the lost+found some volume types leave at the root.
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- name: PGDATA
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value: /var/lib/postgresql/data/pgdata
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volumeMounts:
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- name: data
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mountPath: /var/lib/postgresql/data
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readinessProbe:
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exec:
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command: ["pg_isready", "-U", "n8n", "-d", "n8n"]
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initialDelaySeconds: 5
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periodSeconds: 10
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livenessProbe:
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exec:
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command: ["pg_isready", "-U", "n8n", "-d", "n8n"]
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initialDelaySeconds: 30
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periodSeconds: 20
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resources:
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requests:
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cpu: 50m
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memory: 256Mi
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limits:
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cpu: "1"
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memory: 1Gi
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volumeClaimTemplates:
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- metadata:
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name: data
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spec:
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accessModes: ["ReadWriteOnce"]
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resources:
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requests:
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storage: 5Gi
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