# Continuwuity for Kubernetes

Continuwuity doesn't support horizontal scalability or distributed loading
natively. However, a deployment in Kubernetes is very similar to the [docker setup](./docker.mdx).
This is because Continuwuity can be fully configured using environment
variables. A sample `StatefulSet` is shared below. The only thing missing is
a PVC definition (named `continuwuity-data`) for the volume mounted to
the `StatefulSet`, an Ingress resources to point your webserver to the
Continuwuity Pods, and a Service resource (targeting `app.kubernetes.io/name: continuwuity`)
to glue the Ingress and Pod together.

Carefully go through the `env` section and add, change, and remove any env vars you like using the [Configuration reference](https://continuwuity.org/reference/config.html)

```yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: continuwuity
  namespace: matrix
  labels:
    app.kubernetes.io/name: continuwuity
spec:
  replicas: 1
  serviceName: continuwuity
  podManagementPolicy: Parallel
  selector:
    matchLabels:
      app.kubernetes.io/name: continuwuity
  template:
    metadata:
      labels:
        app.kubernetes.io/name: continuwuity
    spec:
      securityContext:
        sysctls:
          - name: net.ipv4.ip_unprivileged_port_start
            value: "0"
      containers:
        - name: continuwuity
          # use a sha hash <3
          image: forgejo.ellis.link/continuwuation/continuwuity:latest
          command: ["/sbin/conduwuit"]
          imagePullPolicy: IfNotPresent
          ports:
            - name: http
              containerPort: 80
          volumeMounts:
            - mountPath: /data
              name: data
              subPath: data
          securityContext:
            capabilities:
              add:
                - NET_BIND_SERVICE
          env:
            - name: TOKIO_WORKER_THREADS
              value: "2"
            - name: CONTINUWUITY_SERVER_NAME
              value: "example.com"
            - name: CONTINUWUITY_DATABASE_PATH
              value: "/data/db"
            - name: CONTINUWUITY_DATABASE_BACKEND
              value: "rocksdb"
            - name: CONTINUWUITY_PORT
              value: "80"
            - name: CONTINUWUITY_MAX_REQUEST_SIZE
              value: "20000000"
            - name: CONTINUWUITY_ALLOW_FEDERATION
              value: "true"
            - name: CONTINUWUITY_TRUSTED_SERVERS
              value: '["matrix.org"]'
            - name: CONTINUWUITY_ADDRESS
              value: "0.0.0.0"
            - name: CONTINUWUITY_ROCKSDB_PARALLELISM_THREADS
              value: "1"
            - name: CONTINUWUITY_WELL_KNOWN__SERVER
              value: "matrix.example.com:443"
            - name: CONTINUWUITY_WELL_KNOWN__CLIENT
              value: "https://matrix.example.com"
            - name: CONTINUWUITY_ALLOW_REGISTRATION
              value: "false"
            - name: CONTINUWUITY_LOG
              value: info
          readinessProbe:
            httpGet:
              path: /_matrix/federation/v1/version
              port: http
            periodSeconds: 4
            failureThreshold: 5
          resources:
            # Continuwuity might use quite some RAM :3
            requests:
              cpu: "2"
              memory: "512Mi"
            limits:
              cpu: "4"
              memory: "2048Mi"
      volumes:
        - name: data
          persistentVolumeClaim:
            claimName: continuwuity-data
```

---

## Community maintained Helm Chart

Apart from manually configuring the containers, you can consult
a community-maintained Helm Chart for the former `conduwuit` project,
which is available [here][community-helm-chart].

[community-helm-chart]: https://gitlab.cronce.io/charts/conduwuit

This should be compatible with Continuwuity, but you will need to switch the image reference.

If changes are needed to be made, please reach out to the maintainer of that repository, as it is not maintained nor controlled by the Continuwuity maintainers.

## Post-installation

After successfully setting up your Continuwuity, navigate to [Post-installation](../deploying.mdx#post-installation) for next steps.