Merge pull request #37 from oscartbeaumont/master

added Kubernetes support

kubernetes/README.md

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+# Plausible Analytics in Kubernetes
+
+This guide is designed to extend the [normal self-hosting guide](https://plausible.io/docs/self-hosting), please refer to it before following this guide.
+
+## 1. Clone the hosting repo
+
+To deploy Plausible Analytics into Kubernetes first download the [plausible/hosting](https://github.com/plausible/hosting) repo.
+
+```bash
+git clone https://github.com/plausible/hosting
+cd hosting
+```
+
+## 2. Add required configuration
+
+Like the original self hosting guide configure your server in the `plausible-conf.env` file.
+
+## 3. Deploy the server
+
+Once you've entered your secret key base, base url and admin credentials, you're ready to deploy the server:
+
+```bash
+kubectl create namespace plausible # Create a new namespace for all resources
+kubectl -n plausible create secret generic plausible-config --from-env-file=plausible-conf.env # Create a configmap from the plausible-conf.env file
+# Please change the Postgres and Clickhouse passwords to something more secure here!
+kubectl -n plausible create secret generic plausible-db-user --from-literal='username=postgres' --from-literal='password=postgres' # Create the Postgres user
+kubectl -n plausible create secret generic plausible-events-db-user --from-literal='username=clickhouse' --from-literal='password=clickhouse' # Create the Clickhouse user
+kubectl -n plausible apply -f ./kubernetes
+```
+
+You can now navigate to http://{hostname}:8000 and see the login screen.
+
+When you first log in with your admin credentials, you will be prompted to enter a verification code which has been sent to your email. Please configure your server for SMTP to receive this email. [Here are Plausible's SMTP configuration options](https://plausible.io/docs/self-hosting-configuration#mailersmtp-setup).
+Otherwise, run this command to verify all users in the database:
+
+```bash
+kubectl -n plausible exec statefulset/plausible-db -- /bin/bash -c 'psql -U $POSTGRES_USER -d $POSTGRES_DB -c "UPDATE users SET email_verified = true;"'
+```

kubernetes/plausible-db.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: plausible-db
+  labels:
+    app.kubernetes.io/name: postgres
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+spec:
+  type: ClusterIP
+  ports:
+    - name: db
+      port: 5432
+      targetPort: 5432
+      protocol: TCP
+  selector:
+    app.kubernetes.io/name: postgres
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: plausible-db
+  labels:
+    app.kubernetes.io/name: postgres
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+spec:
+  replicas: 1
+  serviceName: plausible-db
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: postgres
+      app.kubernetes.io/component: database
+      app.kubernetes.io/part-of: plausible
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: postgres
+        app.kubernetes.io/component: database
+        app.kubernetes.io/part-of: plausible
+    spec:
+      restartPolicy: Always
+      # see https://github.com/docker-library/postgres/blob/6bbf1c7b308d1c4288251d73c37f6caf75f8a3d4/14/buster/Dockerfile
+      securityContext:
+        runAsUser: 999
+        runAsGroup: 999
+        fsGroup: 999
+      containers:
+        - name: plausible-db
+          image: postgres:latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 5432
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/postgresql/data
+          env:
+            - name: POSTGRES_DB
+              value: plausible
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: username
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: password
+          securityContext:
+            allowPrivilegeEscalation: false
+          resources:
+            limits:
+              memory: 2Gi
+              cpu: 1500m
+            requests:
+              memory: 65Mi
+              cpu: 15m
+          readinessProbe:
+            exec:
+              command:
+                - /bin/sh
+                - -c
+                - pg_isready -U postgres
+            initialDelaySeconds: 20
+            failureThreshold: 6
+            periodSeconds: 10
+          livenessProbe:
+            exec:
+              command:
+                - /bin/sh
+                - -c
+                - pg_isready -U postgres
+            initialDelaySeconds: 30
+            failureThreshold: 3
+            periodSeconds: 10
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+        labels:
+          app.kubernetes.io/name: postgres
+          app.kubernetes.io/component: database
+          app.kubernetes.io/part-of: plausible
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 128Mi
+          limits:
+            storage: 15Gi

kubernetes/plausible-events-db.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: plausible-events-db
+  labels:
+    app.kubernetes.io/name: clickhouse
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+spec:
+  type: ClusterIP
+  ports:
+    - name: db
+      port: 8123
+      targetPort: 8123
+      protocol: TCP
+  selector:
+    app.kubernetes.io/name: clickhouse
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: plausible-events-db-config
+data:
+  clickhouse-config.xml: |
+    <yandex>
+        <logger>
+            <level>warning</level>
+            <console>true</console>
+        </logger>
+
+        <!-- Stop all the unnecessary logging -->
+        <query_thread_log remove="remove"/>
+        <query_log remove="remove"/>
+        <text_log remove="remove"/>
+        <trace_log remove="remove"/>
+        <metric_log remove="remove"/>
+        <asynchronous_metric_log remove="remove"/>
+    </yandex>
+  clickhouse-user-config.xml: |
+    <yandex>
+        <profiles>
+            <default>
+                <log_queries>0</log_queries>
+                <log_query_threads>0</log_query_threads>
+            </default>
+        </profiles>
+    </yandex>
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: plausible-events-db
+  labels:
+    app.kubernetes.io/name: clickhouse
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+spec:
+  replicas: 1
+  serviceName: plausible-events-db
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: clickhouse
+      app.kubernetes.io/component: database
+      app.kubernetes.io/part-of: plausible
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: clickhouse
+        app.kubernetes.io/component: database
+        app.kubernetes.io/part-of: plausible
+    spec:
+      restartPolicy: Always
+      # see https://github.com/ClickHouse/ClickHouse/blob/master/docker/server/Dockerfile
+      securityContext:
+        runAsUser: 101
+        runAsGroup: 101
+        fsGroup: 101
+      containers:
+        - name: plausible-events-db
+          image: yandex/clickhouse-server:latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8123
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/clickhouse
+            - name: config
+              mountPath: /etc/clickhouse-server/config.d/logging.xml
+              subPath: clickhouse-config.xml
+              readOnly: true
+            - name: config
+              mountPath: /etc/clickhouse-server/users.d/logging.xml"
+              subPath: clickhouse-user-config.xml
+              readOnly: true
+          env:
+            - name: CLICKHOUSE_DB
+              value: plausible
+            - name: CLICKHOUSE_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: username
+            - name: CLICKHOUSE_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: password
+          securityContext:
+            allowPrivilegeEscalation: false
+          resources:
+            limits:
+              memory: 2Gi
+              cpu: 1500m
+            requests:
+              memory: 80Mi
+              cpu: 10m
+          readinessProbe:
+            httpGet:
+              path: /ping
+              port: 8123
+            initialDelaySeconds: 20
+            failureThreshold: 6
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /ping
+              port: 8123
+            initialDelaySeconds: 30
+            failureThreshold: 3
+            periodSeconds: 10
+      volumes:
+        - name: config
+          configMap:
+            name: plausible-events-db-config
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+        labels:
+          app.kubernetes.io/name: clickhouse
+          app.kubernetes.io/component: database
+          app.kubernetes.io/part-of: plausible
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 128Mi
+          limits:
+            storage: 20Gi

kubernetes/plausible-mail.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: plausible-smtp
+  labels:
+    app.kubernetes.io/name: smtp
+    app.kubernetes.io/component: email
+    app.kubernetes.io/part-of: plausible
+spec:
+  type: ClusterIP
+  ports:
+    - name: smtp
+      port: 25
+      targetPort: 25
+      protocol: TCP
+  selector:
+    app.kubernetes.io/name: smtp
+    app.kubernetes.io/component: database
+    app.kubernetes.io/part-of: plausible
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: plausible-smtp
+  labels:
+    app.kubernetes.io/name: smtp
+    app.kubernetes.io/component: email
+    app.kubernetes.io/part-of: plausible
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: smtp
+      app.kubernetes.io/component: email
+      app.kubernetes.io/part-of: plausible
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: smtp
+        app.kubernetes.io/component: email
+        app.kubernetes.io/part-of: plausible
+    spec:
+      restartPolicy: Always
+      containers:
+        - name: plausible-smtp
+          image: bytemark/smtp:latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 25
+          securityContext:
+            allowPrivilegeEscalation: false
+          resources:
+            limits:
+              memory: 512Mi
+              cpu: 500m
+            requests:
+              memory: 5Mi
+              cpu: 1m
+          readinessProbe:
+            tcpSocket:
+              port: 25
+            initialDelaySeconds: 20
+            failureThreshold: 6
+            periodSeconds: 10
+          livenessProbe:
+            tcpSocket:
+              port: 25
+            initialDelaySeconds: 30
+            failureThreshold: 3
+            periodSeconds: 10

kubernetes/plausible.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: plausible
+  labels:
+    app.kubernetes.io/name: plausible
+    app.kubernetes.io/component: server
+spec:
+  type: LoadBalancer
+  ports:
+    - name: http
+      port: 8000
+      targetPort: 8000
+      protocol: TCP
+  selector:
+    app.kubernetes.io/name: plausible
+    app.kubernetes.io/component: server
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: plausible
+  labels:
+    app.kubernetes.io/name: plausible
+    app.kubernetes.io/component: server
+spec:
+  # Plausible is not currently designed to run in a clustered scenario. Increasing the replicas of this deployment is highly NOT recommended!
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: plausible
+      app.kubernetes.io/component: server
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: plausible
+        app.kubernetes.io/component: server
+    spec:
+      restartPolicy: Always
+      # see https://github.com/plausible/analytics/blob/master/Dockerfile
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+        fsGroup: 1000
+      initContainers:
+        - name: plausible-init
+          image: plausible/analytics:latest
+          command:
+            - "/bin/sh"
+            - "-c"
+          args:
+            - sleep 30 && /entrypoint.sh db createdb && /entrypoint.sh db migrate && /entrypoint.sh db init-admin
+          envFrom:
+            - secretRef:
+                name: plausible-config
+          env:
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: username
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: password
+            - name: CLICKHOUSE_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: username
+            - name: CLICKHOUSE_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: password
+            - name: DATABASE_URL
+              value: postgres://$(POSTGRES_USER):$(POSTGRES_PASSWORD)@$(PLAUSIBLE_DB_SERVICE_HOST):$(PLAUSIBLE_DB_SERVICE_PORT)/plausible
+            - name: CLICKHOUSE_DATABASE_URL
+              value: http://$(CLICKHOUSE_USER):$(CLICKHOUSE_PASSWORD)@$(PLAUSIBLE_EVENTS_DB_SERVICE_HOST):$(PLAUSIBLE_EVENTS_DB_SERVICE_PORT)/plausible
+            - name: SMTP_HOST_ADDR
+              value: $(PLAUSIBLE_SMTP_SERVICE_HOST)
+          securityContext:
+            allowPrivilegeEscalation: false
+          resources:
+            limits:
+              memory: 2Gi
+              cpu: 1500m
+            requests:
+              memory: 50Mi
+              cpu: 10m
+      containers:
+        - name: plausible
+          image: plausible/analytics:latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8000
+          envFrom:
+            - secretRef:
+                name: plausible-config
+          env:
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: username
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-db-user
+                  key: password
+            - name: CLICKHOUSE_USER
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: username
+            - name: CLICKHOUSE_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: plausible-events-db-user
+                  key: password
+            - name: DATABASE_URL
+              value: postgres://$(POSTGRES_USER):$(POSTGRES_PASSWORD)@$(PLAUSIBLE_DB_SERVICE_HOST):$(PLAUSIBLE_DB_SERVICE_PORT)/plausible
+            - name: CLICKHOUSE_DATABASE_URL
+              value: http://$(CLICKHOUSE_USER):$(CLICKHOUSE_PASSWORD)@$(PLAUSIBLE_EVENTS_DB_SERVICE_HOST):$(PLAUSIBLE_EVENTS_DB_SERVICE_PORT)/plausible
+            - name: SMTP_HOST_ADDR
+              value: $(PLAUSIBLE_SMTP_SERVICE_HOST)
+          securityContext:
+            allowPrivilegeEscalation: false
+          resources:
+            limits:
+              memory: 2Gi
+              cpu: 1500m
+            requests:
+              memory: 140Mi
+              cpu: 10m
+          readinessProbe:
+            httpGet:
+              path: /api/health
+              port: 8000
+            initialDelaySeconds: 35
+            failureThreshold: 6
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 8000
+            initialDelaySeconds: 45
+            failureThreshold: 3
+            periodSeconds: 10