ThreadNet-Web/docs/kubernetes.md

Running in Kubernetes

In case you would like to deploy element-web in a kubernetes cluster you can use the provided Kubernetes example below as a starting point. Note that this example assumes the Nginx ingress to be installed.

Note that the content of the required config.json is defined inside this yaml because it needs to be put in your Kubernetes cluster as a ConfigMap.

So to use it you must create a file with this content as a starting point and modify it so it meets the requirements of your environment.

Then you can deploy it to your cluster with something like kubectl apply -f my-element-web.yaml.

# This is an example of a POSSIBLE config for deploying a single element-web instance in Kubernetes

# Use the element-web namespace to put it all in.

apiVersion: v1
kind: Namespace
metadata:
  name: element-web

---

# The config.json file is to be put into Kubernetes as a config file in such a way that
# the element web instance can read it.
# The code below shows how this can be done with the config.sample.json content.

apiVersion: v1
kind: ConfigMap
metadata:
  name: element-config
  namespace: element-web
data:
  config.json: |
    {
        "default_server_config": {
            "m.homeserver": {
                "base_url": "https://matrix-client.matrix.org",
                "server_name": "matrix.org"
            },
            "m.identity_server": {
                "base_url": "https://vector.im"
            }
        },
        "disable_custom_urls": false,
        "disable_guests": false,
        "disable_login_language_selector": false,
        "disable_3pid_login": false,
        "brand": "Element",
        "integrations_ui_url": "https://scalar.vector.im/",
        "integrations_rest_url": "https://scalar.vector.im/api",
        "integrations_widgets_urls": [
                "https://scalar.vector.im/_matrix/integrations/v1",
                "https://scalar.vector.im/api",
                "https://scalar-staging.vector.im/_matrix/integrations/v1",
                "https://scalar-staging.vector.im/api"
        ],
        "bug_report_endpoint_url": "https://rageshakes.element.io/api/submit",
        "defaultCountryCode": "GB",
        "show_labs_settings": false,
        "features": { },
        "default_federate": true,
        "default_theme": "light",
        "room_directory": {
            "servers": [
                    "matrix.org"
            ]
        },
        "enable_presence_by_hs_url": {
            "https://matrix.org": false,
            "https://matrix-client.matrix.org": false
        },
        "setting_defaults": {
            "breadcrumbs": true
        },
        "jitsi": {
            "preferred_domain": "meet.element.io"
        }
    }


---

# A deployment of the element-web for a single instance

apiVersion: apps/v1
kind: Deployment
metadata:
  name: element
  namespace: element-web
spec:
  selector:
    matchLabels:
      app: element
  replicas: 1
  template:
    metadata:
      labels:
        app: element
    spec:
      containers:
      - name: element
        image: vectorim/element-web:latest
        volumeMounts:
        - name: config-volume
          mountPath: /app/config.json
          subPath: config.json
        ports:
        - containerPort: 80
          name: element
          protocol: TCP
        readinessProbe:
            httpGet:
                path: /
                port: element
            initialDelaySeconds: 2
            periodSeconds: 3
        livenessProbe:
            httpGet:
                path: /
                port: element
            initialDelaySeconds: 10
            periodSeconds: 10
      volumes:
      - name: config-volume
        configMap:
          name: element-config

---

# Wrap it all in a Service

apiVersion: v1
kind: Service
metadata:
  name: element
  namespace: element-web
spec:
  selector:
    app: element
  ports:
    - name: default
      protocol: TCP
      port: 80
      targetPort: 80

---

# An ingress definition to expose the service via a hostname

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: element
  namespace: element-web
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/configuration-snippet: |
      add_header X-Frame-Options SAMEORIGIN;
      add_header X-Content-Type-Options nosniff;
      add_header X-XSS-Protection "1; mode=block";
      add_header Content-Security-Policy "frame-ancestors 'self'";
spec:
  rules:
    - host: element.example.nl
      http:
        paths:
          - pathType: Prefix
            path: /
            backend:
              service:
                name: element
                port:
                  number: 80

---