hades-chart/hades/templates/job-dbinit.yaml

{{- if .Values.dbInit.enabled }}
apiVersion: batch/v1
kind: Job
metadata:
  name: {{ include "hades.fullname" . }}-dbinit
  labels:
    {{- include "hades.labels" . | nindent 4 }}
    app.kubernetes.io/component: dbinit
  annotations:
    # ArgoCD sync wave - same wave as MySQL (0), wait-for-db handles timing
    argocd.argoproj.io/sync-wave: "0"
    argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
    # Helm hooks (for non-ArgoCD deployments)
    "helm.sh/hook": post-install,post-upgrade
    "helm.sh/hook-weight": "-5"
    "helm.sh/hook-delete-policy": before-hook-creation
spec:
  backoffLimit: 5
  ttlSecondsAfterFinished: 300
  template:
    metadata:
      labels:
        app.kubernetes.io/component: dbinit
        {{- include "hades.selectorLabels" . | nindent 8 }}
    spec:
      restartPolicy: OnFailure
      initContainers:
      # Wait for MySQL to be ready
      - name: wait-for-db
        image: busybox:1.36
        command:
          - sh
          - -c
          - |
            echo "Waiting for database to be ready..."
            until nc -z {{ include "hades.databaseHost" . }} {{ include "hades.databasePort" . }}; do
              echo "Database is unavailable - sleeping"
              sleep 2
            done
            echo "Database is up!"
            sleep 10
      containers:
      - name: dbinit
        image: mysql:8.0
        env:
        - name: MYSQL_HOST
          value: {{ include "hades.databaseHost" . | quote }}
        - name: MYSQL_PORT
          value: {{ include "hades.databasePort" . | quote }}
        - name: MYSQL_DATABASE
          value: {{ include "hades.databaseName" . | quote }}
        - name: MYSQL_USER
          value: {{ include "hades.databaseUsername" . | quote }}
        - name: MYSQL_PWD
          valueFrom:
            secretKeyRef:
              name: {{ include "hades.databaseSecretName" . }}
              key: mysql-password
        command:
          - /bin/bash
          - -c
          - |
            set -ex

            echo "========================================="
            echo "Hades Database Migration"
            echo "========================================="
            echo "Host: ${MYSQL_HOST}:${MYSQL_PORT}"
            echo "Database: ${MYSQL_DATABASE}"
            echo "User: ${MYSQL_USER}"
            echo "========================================="

            # Test connection
            echo "Testing database connection..."
            if ! mysql -h"${MYSQL_HOST}" -P"${MYSQL_PORT}" -u"${MYSQL_USER}" -e "SELECT 1" "${MYSQL_DATABASE}" &> /dev/null; then
              echo "ERROR: Cannot connect to database"
              exit 1
            fi
            echo "✓ Database connection successful"
            echo ""

            # Apply migrations in order
            TOTAL=0
            SUCCESS=0
            FAILED=0

            for sql_file in /migrations/*.sql; do
              if [ ! -f "$sql_file" ]; then
                continue
              fi

              filename=$(basename "$sql_file")
              TOTAL=$((TOTAL + 1))

              echo -n "Applying $filename... "

              if mysql -h"${MYSQL_HOST}" -P"${MYSQL_PORT}" -u"${MYSQL_USER}" "${MYSQL_DATABASE}" < "$sql_file" 2>/tmp/migration_error.log; then
                echo "✓ SUCCESS"
                SUCCESS=$((SUCCESS + 1))
              else
                echo "✗ FAILED"
                echo "Error details:"
                cat /tmp/migration_error.log
                FAILED=$((FAILED + 1))

                # Stop on first error
                echo ""
                echo "========================================="
                echo "Migration failed at: $filename"
                echo "========================================="
                exit 1
              fi
            done

            echo ""
            echo "========================================="
            echo "Migration Summary:"
            echo "  Total: $TOTAL"
            echo "  Success: $SUCCESS"
            echo "  Failed: $FAILED"
            echo "========================================="

            if [ $FAILED -eq 0 ]; then
              echo "✓ All migrations completed successfully!"
              exit 0
            else
              echo "✗ Some migrations failed"
              exit 1
            fi
        volumeMounts:
        - name: sql-migrations
          mountPath: /migrations
      volumes:
      - name: sql-migrations
        configMap:
          name: {{ include "hades.fullname" . }}-sql-migrations
{{- end }}