Stéphane Tailland
d68d20c6f4
Every environment value is a ${VAR} for the caller to substitute: hostname,
images, storage, ingress class, TLS issuer, Vault server and path, timezone,
retention. Nothing in k8s/ names a host, a realm, an agent or an estate.
Removed: the Flux plumbing under dev/, which described one deployment, and the
ExternalSecret pulling a specific agent's Keycloak client secret. Both belong to
whoever deploys this. The lab CA ConfigMap goes with them — the mount stays,
parameterised and marked optional, because 'trust a private CA' is a property of
an environment and not of n8n.
The README is now the template's: how to consume it, what every variable means,
and the three things it deliberately does not do.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
120 lines
3.8 KiB
YAML
120 lines
3.8 KiB
YAML
apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: n8n
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namespace: ${NAMESPACE}
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spec:
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# One replica. n8n's queue mode splits the editor from workers and needs Redis
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# to do it; without that, a second replica is two schedulers racing over the
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# same cron triggers. See the README before scaling this.
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replicas: 1
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strategy:
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# The volume is ReadWriteOnce, so a rolling update deadlocks: the new pod
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# waits for a volume the old pod has not released.
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type: Recreate
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selector:
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matchLabels:
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app: n8n
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template:
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metadata:
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labels:
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app: n8n
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spec:
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securityContext:
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runAsNonRoot: true
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runAsUser: 1000
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fsGroup: 1000
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initContainers:
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- name: wait-for-postgres
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image: ${POSTGRES_IMAGE}
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command:
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- sh
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- -c
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- |
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until pg_isready -h n8n-postgres -U n8n -d n8n; do
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echo "waiting for postgres..."; sleep 3
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done
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containers:
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- name: n8n
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image: ${N8N_IMAGE}
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ports:
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- name: http
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containerPort: 5678
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env:
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- name: DB_TYPE
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value: postgresdb
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- name: DB_POSTGRESDB_HOST
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value: n8n-postgres
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- name: DB_POSTGRESDB_PORT
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value: "5432"
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- name: DB_POSTGRESDB_DATABASE
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value: n8n
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- name: DB_POSTGRESDB_USER
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value: n8n
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- name: DB_POSTGRESDB_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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# Encrypts stored credentials. Held in Vault, never regenerated —
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# a new key does not re-encrypt, it orphans everything already
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# stored.
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- name: N8N_ENCRYPTION_KEY
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valueFrom:
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secretKeyRef:
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name: n8n-secrets
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key: N8N_ENCRYPTION_KEY
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# A private CA to trust, so a workflow can call an internal
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# endpoint over TLS without anyone disabling verification to make it
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# work. n8n is Node, hence this variable rather than a trust store.
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# Provided by the deployment; an empty ConfigMap disables it in
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# practice, since the file will not exist and Node falls back to its
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# own bundle.
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- name: NODE_EXTRA_CA_CERTS
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value: /etc/extra-ca/ca.crt
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envFrom:
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- configMapRef:
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name: n8n-config
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# Whatever else this deployment's workflows need in their
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# environment. Provided by the deployment, not by this repo: an
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# empty Secret of that name is a valid answer.
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- secretRef:
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name: ${EXTRA_ENV_SECRET}
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volumeMounts:
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- name: data
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mountPath: /home/node/.n8n
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- name: extra-ca
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mountPath: /etc/extra-ca
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readOnly: true
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readinessProbe:
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httpGet:
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path: /healthz
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port: http
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initialDelaySeconds: 15
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periodSeconds: 10
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livenessProbe:
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httpGet:
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path: /healthz
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port: http
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initialDelaySeconds: 60
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periodSeconds: 20
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resources:
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requests:
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cpu: 100m
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memory: 512Mi
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limits:
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cpu: "2"
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memory: 2Gi
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securityContext:
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allowPrivilegeEscalation: false
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capabilities:
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drop: ["ALL"]
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volumes:
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- name: data
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persistentVolumeClaim:
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claimName: n8n-data
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- name: extra-ca
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configMap:
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name: ${EXTRA_CA_CONFIGMAP}
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optional: true
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