First things first, make sure you have a working Kubernetes cluster. You can go with managed services like Google Kubernetes Engine (GKE), Amazon Elastic Kubernetes Service (EKS), or Azure Kubernetes Service (AKS). If you're just tinkering around, a local setup using minikube or kind works just fine too.

Next up, you'll need kubectl to interact with your Kubernetes cluster. If you don't have it yet, here's how to get it:

# macOS users
brew install kubernetes-cli

# Ubuntu users
sudo snap install kubectl --classic

# Windows users using choco
choco install kubernetes-cli

Once installed, configure kubectl to connect to your Kubernetes cluster.

Now, let's get Helm, the package manager for Kubernetes.

# macOS users
brew install helm

# Ubuntu users
sudo snap install helm --classic

# Windows users using choco
choco install kubernetes-helm

Create a namespace in your Kubernetes cluster to keep your Supabase components organized.

kubectl create namespace supabase

Time to set up the Supabase components. You'll need to create Kubernetes configuration files for PostgreSQL, REST API, Realtime, Storage, and Auth.

PostgreSQL Config:

Create a postgresql-deployment.yaml file:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: supabase-postgresql
  namespace: supabase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: supabase-postgresql
  template:
    metadata:
      labels:
        app: supabase-postgresql
    spec:
      containers:
        - name: postgres
          image: postgres:13
          env:
            - name: POSTGRES_USER
              value: "supabase_admin"
            - name: POSTGRES_PASSWORD
              value: "your_password"
            - name: POSTGRES_DB
              value: "supabase_db"
          ports:
            - containerPort: 5432

Deploy it:

kubectl apply -f postgresql-deployment.yaml

Create a supabase-rest-api-deployment.yaml file:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: supabase-rest-api
  namespace: supabase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: supabase-rest-api
  template:
    metadata:
      labels:
        app: supabase-rest-api
    spec:
      containers:
        - name: rest-api
          image: postgrest/postgrest
          env:
            - name: PGRST_DB_URI
              value: "postgres://supabase_admin:your_password@supabase-postgresql:5432/supabase_db"
            - name: PGRST_DB_SCHEMA
              value: "public"
            - name: PGRST_DB_ANON_ROLE
              value: "anon"
          ports:
            - containerPort: 3000

Deploy it:

kubectl apply -f supabase-rest-api-deployment.yaml

Create a supabase-realtime-deployment.yaml file:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: supabase-realtime
  namespace: supabase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: supabase-realtime
  template:
    metadata:
      labels:
        app: supabase-realtime
    spec:
      containers:
        - name: realtime
          image: supabase/realtime
          env:
            - name: DB_HOST
              value: "supabase-postgresql"
            - name: DB_NAME
              value: "supabase_db"
            - name: DB_USER
              value: "supabase_admin"
            - name: DB_PASSWORD
              value: "your_password"
            - name: DB_PORT
              value: "5432"
            - name: PORT
              value: "4000"
            - name: SECRET_KEY_BASE
              value: "your_secret_key_base"
          ports:
            - containerPort: 4000

Deploy it:

kubectl apply -f supabase-realtime-deployment.yaml

Create a supabase-storage-deployment.yaml file:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: supabase-storage
  namespace: supabase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: supabase-storage
  template:
    metadata:
      labels:
        app: supabase-storage
    spec:
      containers:
        - name: storage
          image: supabase/storage-api
          env:
            - name: POSTGREST_URL
              value: "http://supabase-rest-api:3000"
            - name: POSTGREST_JWT_SECRET
              value: "your_jwt_secret"
            - name: DATABASE_URL
              value: "postgres://supabase_admin:your_password@supabase-postgresql:5432/supabase_db"
            - name: FILE_STORAGE_BACKEND
              value: "file"
            - name: STORAGE_LOCAL_PATH
              value: "/var/storage"
          volumeMounts:
            - mountPath: /var/storage
              name: storage-volume
          ports:
            - containerPort: 5000
      volumes:
        - name: storage-volume
          emptyDir: {}

Deploy it:

kubectl apply -f supabase-storage-deployment.yaml

Create a supabase-auth-deployment.yaml file:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: supabase-auth
  namespace: supabase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: supabase-auth
  template:
    metadata:
      labels:
        app: supabase-auth
    spec:
      containers:
        - name: auth
          image: supabase/gotrue
          env:
            - name: GOTRUE_DATABASE_URL
              value: "postgres://supabase_admin:your_password@supabase-postgresql:5432/supabase_db"
            - name: GOTRUE_JWT_SECRET
              value: "your_jwt_secret"
            - name: SITE_URL
              value: "http://localhost" # Or your public facing URL
          ports:
            - containerPort: 8000

Deploy it:

kubectl apply -f supabase-auth-deployment.yaml

Create service files to expose the deployments.

For example, for PostgreSQL:

apiVersion: v1
kind: Service
metadata:
  name: supabase-postgresql
  namespace: supabase
spec:
  selector:
    app: supabase-postgresql
  ports:
    - protocol: TCP
      port: 5432
      targetPort: 5432

Deploy the service:

kubectl apply -f postgresql-service.yaml

Repeat similar steps for exposing the rest of Supabase components.

Use kubectl port-forward to access your Supabase services locally.

kubectl port-forward svc/supabase-postgresql 5432:5432 -n supabase
kubectl port-forward svc/supabase-rest-api 3000:3000 -n supabase
kubectl port-forward svc/supabase-realtime 4000:4000 -n supabase
kubectl port-forward svc/supabase-storage 5000:5000 -n supabase
kubectl port-forward svc/supabase-auth 8000:8000 -n supabase