Deploy MinIO on Kubernetes

Architecture (Click to Enlarge)

Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: minio
  namespace: minio
spec:
  replicas: 1
  selector:
    matchLabels:
      app: minio
  template:
    metadata:
      labels:
        app: minio
    spec:
      containers:
        - name: minio
          image: minio/minio
          args:
            - server
            - /data
            - --console-address
            - :9001
          env:
            - name: MINIO_ROOT_USER
              value: minio_user
            - name: MINIO_ROOT_PASSWORD
              value: minio_password
          ports:
            - containerPort: 9000
              protocol: TCP
            - containerPort: 9001
              protocol: TCP
          livenessProbe:
            httpGet:
              path: /minio/health/live
              port: 9000
            initialDelaySeconds: 30
            periodSeconds: 20
            timeoutSeconds: 15
            failureThreshold: 6
          readinessProbe:
            httpGet:
              path: /minio/health/ready
              port: 9000
            initialDelaySeconds: 15
            periodSeconds: 10
            timeoutSeconds: 10
            failureThreshold: 3
          volumeMounts:
            - name: storage
              mountPath: /data
      volumes:
        - name: storage
          hostPath:
            path: /home/docker/data/minio
            type: DirectoryOrCreate
      restartPolicy: Always

Job

apiVersion: batch/v1
kind: Job
metadata:
  name: minio-create-bucket
  namespace: minio
spec:
  backoffLimit: 6
  completions: 1
  template:
    metadata:
      labels:
        job: minio-create-bucket
    spec:
      initContainers:
        - name: wait-for-minio
          image: busybox
          command:
            - sh
            - -c
            - |
              until nc -z minio-api.minio.svc.cluster.local 9000; do
                echo "Waiting for MinIO..."
                sleep 2
              done
              echo "MinIO is ready!"
      containers:
        - name: minio-create-buckets
          image: minio/mc
          command:
            - sh
            - -c
            - |
              mc alias set minio http://minio-api.minio.svc.cluster.local:9000 minio_user minio_password &&
              for bucket in mlflow dbt sqlmesh ray; do
                if ! mc ls minio/$bucket >/dev/null 2>&1; then
                  echo "Creating bucket: $bucket"
                  mc mb minio/$bucket
                  echo "Bucket created: $bucket"
                else
                  echo "Bucket already exists: $bucket"
                fi
              done
      restartPolicy: OnFailure
      terminationGracePeriodSeconds: 30

Services

apiVersion: v1
kind: Service
metadata:
  name: minio-console
  namespace: minio
spec:
  selector:
    app: minio
  type: NodePort
  ports:
    - name: console
      port: 9001
      targetPort: 9001
      nodePort: 30901
---
apiVersion: v1
kind: Service
metadata:
  name: minio-api
  namespace: minio
spec:
  selector:
    app: minio
  type: ClusterIP
  ports:
    - name: api
      port: 9000
      targetPort: 9000