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scrum-manager/k8s/base/backend/deployment.yaml
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fix: k8s on-premise deployment and session persistence
Database fixes:
- Add hostPath.type=DirectoryOrCreate so kubelet auto-creates /mnt/data/mysql
- Add fsGroup=999 so MySQL process can write to the hostPath volume
- Add MYSQL_ROOT_HOST=% to allow backend pods to authenticate as root
- Fix liveness/readiness probes to include credentials (-p$MYSQL_ROOT_PASSWORD)
- Increase probe initialDelaySeconds (30/60s) for slow first-run init
- Add 15s grace sleep in backend initContainer after MySQL TCP is up
- Add persistentVolumeReclaimPolicy=Retain to prevent accidental data loss
- Explicit accessModes+resources in PVC patch to avoid list merge ambiguity
- Add nodeAffinity comment in PV for multi-node cluster guidance

Ingress/nginx fixes:
- Remove broken rewrite-target=/ that was rewriting all paths (incl /api) to /
- Route /socket.io directly to backend for WebSocket support
- Add /socket.io/ proxy location to both nginx.conf and K8s ConfigMap

Frontend fix:
- Persist currentUser to localStorage on login so page refresh no longer
  clears session and redirects users back to the login page

Tooling:
- Add k8s/overlays/on-premise/deploy.sh for one-command deployment

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-27 22:51:57 +05:30

87 lines
2.3 KiB
YAML

apiVersion: apps/v1
kind: Deployment
metadata:
name: backend
labels:
app.kubernetes.io/name: backend
app.kubernetes.io/component: api
spec:
replicas: 2
selector:
matchLabels:
app.kubernetes.io/name: backend
app.kubernetes.io/component: api
template:
metadata:
labels:
app.kubernetes.io/name: backend
app.kubernetes.io/component: api
spec:
initContainers:
- name: wait-for-mysql
image: busybox:1.36
command:
- sh
- -c
- |
echo "Waiting for MySQL TCP to be available..."
until nc -z mysql 3306; do
echo "MySQL not reachable yet, retrying in 3s..."
sleep 3
done
echo "MySQL TCP is up. Waiting 15s for full initialization..."
sleep 15
echo "Proceeding to start backend."
containers:
- name: backend
image: scrum-backend:latest
imagePullPolicy: IfNotPresent
ports:
- containerPort: 3001
name: http
env:
- name: DB_HOST
value: mysql
- name: DB_PORT
value: "3306"
- name: DB_USER
valueFrom:
secretKeyRef:
name: mysql-secret
key: DB_USER
- name: DB_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-secret
key: DB_PASSWORD
- name: DB_NAME
valueFrom:
secretKeyRef:
name: mysql-secret
key: DB_NAME
- name: PORT
value: "3001"
resources:
requests:
cpu: 100m
memory: 128Mi
limits:
cpu: 500m
memory: 256Mi
livenessProbe:
httpGet:
path: /api/health
port: http
initialDelaySeconds: 15
periodSeconds: 10
timeoutSeconds: 3
failureThreshold: 3
readinessProbe:
httpGet:
path: /api/health
port: http
initialDelaySeconds: 5
periodSeconds: 5
timeoutSeconds: 3
failureThreshold: 5