CI: Add k8s deployment

.gitlab-ci.yml

@@ -20,6 +20,11 @@ stages:
   - test
   - release
   - deploy
+  - deploy-production
+
+#
+# Validation
+#
 
 check-style:
   image: composer:latest
@@ -45,6 +50,10 @@ validate-yarn:
   script:
     - pjv
 
+#
+# Build
+#
+
 .docker_template: &docker_definition
   image: docker:18
   services:
@@ -78,6 +87,10 @@ build-image:
     - docker build --pull --build-arg VERSION="${VERSION}" -t "${TEST_IMAGE}" -f docker/Dockerfile .
     - docker push "${TEST_IMAGE}"
 
+#
+# Test
+#
+
 audit-composer:
   image: ${TEST_IMAGE}
   stage: test
@@ -125,6 +138,10 @@ test:
   after_script:
     - '"${DOCROOT}/bin/migrate" down'
 
+#
+# Release
+#
+
 release-image:
   <<: *docker_definition
   stage: release
@@ -146,23 +163,16 @@ release-image-nginx:
     - master
 
 .deploy_template: &deploy_definition
-  stage: deploy
+  stage: release
   image: ${TEST_IMAGE}
   before_script:
     - apk add -q bash rsync openssh-client
 
-.deploy_template_script:
-  # Configure SSH
-  - &deploy_template_script |-
-    eval $(ssh-agent -s) && echo "${SSH_PRIVATE_KEY}" | ssh-add -
-    rsync -vAax public/assets ${DOCROOT}/public/
-    cd "${DOCROOT}"
-
 build-release-file:
   <<: *deploy_definition
-  stage: deploy
+  stage: release
   artifacts:
-    name: "release_${CI_COMMIT_REF_SLUG}_${CI_JOB_ID}_${CI_COMMIT_SHA}"
+    name: release_${CI_COMMIT_REF_SLUG}_${CI_JOB_ID}_${CI_COMMIT_SHA}
     expire_in: 1 week
     paths:
       - ./release/
@@ -170,8 +180,20 @@ build-release-file:
     - rsync -vAax "${DOCROOT}" "${DOCROOT}/.babelrc" "${DOCROOT}/.browserslistrc" release/
     - rsync -vAax public/assets release/public/
 
-deploy-staging:
+#
+# Deploy staging
+#
+
+.deploy_template_script:
+  # Configure SSH
+  - &deploy_template_script |-
+    eval $(ssh-agent -s) && echo "${SSH_PRIVATE_KEY}" | ssh-add -
+    rsync -vAax public/assets ${DOCROOT}/public/
+    cd "${DOCROOT}"
+
+deploy:
   <<: *deploy_definition
+  stage: deploy
   environment:
     name: staging
   only:
@@ -187,8 +209,84 @@ deploy-staging:
     # Deploy to server
     - ./bin/deploy.sh -r "${STAGING_REMOTE}" -p "${STAGING_REMOTE_PATH}" -i "${CI_JOB_ID}-${CI_COMMIT_SHA}"
 
+.kubectl_deployment: &kubectl_deployment
+  stage: deploy
+  image:
+    name: bitnami/kubectl:latest
+    entrypoint: ['']
+  before_script:
+    - &kubectl_deployment_script if [[ -z "${KUBE_INGRESS_BASE_DOMAIN}" ]]; then echo "Skipping deployment"; exit; fi
+
+.deploy_k8s: &deploy_k8s
+  <<: *kubectl_deployment
+  artifacts:
+    name: deployment.yaml
+    expire_in: 1 day
+    when: always
+    paths:
+      - deployment.yaml
+  script:
+    # CI_ENVIRONMENT_URL is the URL configured in the GitLab environment
+    - export CI_ENVIRONMENT_URL="${CI_ENVIRONMENT_URL:-https://${CI_PROJECT_PATH_SLUG}.${KUBE_INGRESS_BASE_DOMAIN}/}"
+    - export CI_IMAGE=$RELEASE_IMAGE
+    - export CI_IMAGE_NGINX=$RELEASE_IMAGE_NGINX
+    - export CI_INGRESS_DOMAIN=$(echo "$CI_ENVIRONMENT_URL" | grep -oP '(?:https?://)?\K([^/]+)' | head -n1)
+    - export CI_INGRESS_PATH=$(echo "$CI_ENVIRONMENT_URL" | grep -oP '(?:https?://)?(?:[^/])+\K(.*)')
+    - export CI_KUBE_NAMESPACE=$KUBE_NAMESPACE
+    # Any available storage class like longhorn
+    - export CI_PVC_SC=${CI_PVC_SC:-"${CI_PVC_SC_LOCAL:-local-path}"}
+    - export CI_REPLICAS=${CI_REPLICAS_REVIEW:-${CI_REPLICAS:-2}}
+    - export CI_APP_NAME=${CI_APP_NAME:-Engelsystem}
+
+    - cp deployment.tpl.yaml deployment.yaml
+    - for env in ${!CI_*}; do sed -i "s#<${env}>#$(echo "${!env}"|head -n1)#g" deployment.yaml; done
+
+    - echo "Deploying to ${CI_ENVIRONMENT_URL}"
+    - kubectl apply -f deployment.yaml
+    - >-
+      kubectl -n $CI_KUBE_NAMESPACE wait --for=condition=Ready pods --timeout=${CI_WAIT_TIMEOUT:-5}m
+      -l app=$CI_PROJECT_PATH_SLUG -l tier=database
+    - >-
+      kubectl -n $CI_KUBE_NAMESPACE wait --for=condition=Ready pods --timeout=${CI_WAIT_TIMEOUT:-5}m
+      -l app=$CI_PROJECT_PATH_SLUG -l tier=application -l commit=$CI_COMMIT_SHORT_SHA
+
+.deploy_k8s_stop: &deploy_k8s_stop
+  <<: *kubectl_deployment
+  variables:
+    GIT_STRATEGY: none
+  dependencies: []
+  when: manual
+  script:
+    - kubectl delete all,ingress,pvc -l app=$CI_PROJECT_PATH_SLUG -l environment=$CI_ENVIRONMENT_SLUG
+
+deploy-k8s-review:
+  <<: *deploy_k8s
+  environment:
+    name: review/${CI_COMMIT_REF_NAME}
+    on_stop: stop-k8s-review
+    auto_stop_in: 1 week
+    url: https://${CI_PROJECT_PATH_SLUG}-review.${KUBE_INGRESS_BASE_DOMAIN}/${CI_COMMIT_REF_SLUG}
+  variables:
+    CI_REPLICAS_REVIEW: 1
+    CI_APP_NAME: review/${CI_COMMIT_REF_NAME}
+  before_script:
+    - *kubectl_deployment_script
+    - RELEASE_IMAGE=$TEST_IMAGE
+    - RELEASE_IMAGE_NGINX=$TEST_IMAGE_NGINX
+
+stop-k8s-review:
+  <<: *deploy_k8s_stop
+  environment:
+    name: review/${CI_COMMIT_REF_NAME}
+    action: stop
+
+#
+# Deploy production
+#
+
 deploy-production:
   <<: *deploy_definition
+  stage: deploy-production
   environment:
     name: production
   when: manual
@@ -204,3 +302,22 @@ deploy-production:
     - *deploy_template_script
     # Deploy to server
     - ./bin/deploy.sh -r "${PRODUCTION_REMOTE}" -p "${PRODUCTION_REMOTE_PATH}" -i "${CI_JOB_ID}-${CI_COMMIT_SHA}"
+
+deploy-k8s-production:
+  <<: *deploy_k8s
+  stage: deploy-production
+  environment:
+    name: production
+    on_stop: stop-k8s-production
+  when: manual
+  only:
+    - master
+
+stop-k8s-production:
+  <<: *deploy_k8s_stop
+  stage: deploy-production
+  only:
+    - master
+  environment:
+    name: production
+    action: stop

deployment.tpl.yaml

@@ -0,0 +1,199 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: engelsystem-db
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: <CI_PVC_SC>
+  resources:
+    requests:
+      storage: 2Gi
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: database
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: <CI_PROJECT_PATH_SLUG>
+      environment: <CI_ENVIRONMENT_SLUG>
+  template:
+    metadata:
+      labels:
+        app: <CI_PROJECT_PATH_SLUG>
+        environment: <CI_ENVIRONMENT_SLUG>
+        tier: database
+    spec:
+      containers:
+        - image: mariadb:10.2
+          name: database
+          imagePullPolicy: Always
+          env:
+            - name: MYSQL_DATABASE
+              value: engelsystem
+            - name: MYSQL_USER
+              value: engelsystem
+            - name: MYSQL_PASSWORD
+              value: engelsystem
+            - name: MYSQL_RANDOM_ROOT_PASSWORD
+              value: '1'
+            - name: MYSQL_INITDB_SKIP_TZINFO
+              value: 'yes'
+          volumeMounts:
+            - mountPath: /var/lib/mysql
+              name: data
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: engelsystem-db
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: database
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    commit: <CI_COMMIT_SHORT_SHA>
+spec:
+  type: ClusterIP
+  ports:
+    - port: 3306
+      targetPort: 3306
+      name: database
+  selector:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    tier: database
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: engelsystem
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    commit: <CI_COMMIT_SHORT_SHA>
+spec:
+  replicas: <CI_REPLICAS>
+  selector:
+    matchLabels:
+      app: <CI_PROJECT_PATH_SLUG>
+      environment: <CI_ENVIRONMENT_SLUG>
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 1
+  template:
+    metadata:
+      labels:
+        app: <CI_PROJECT_PATH_SLUG>
+        environment: <CI_ENVIRONMENT_SLUG>
+        tier: application
+        commit: <CI_COMMIT_SHORT_SHA>
+      annotations:
+        app.gitlab.com/app: <CI_PROJECT_PATH_SLUG>
+        app.gitlab.com/env: <CI_ENVIRONMENT_SLUG>
+        commit: <CI_COMMIT_SHORT_SHA>
+    spec:
+      initContainers:
+        - image: <CI_IMAGE>
+          name: engelsystem-migrate
+          imagePullPolicy: Always
+          command:
+            - sh
+            - -c
+            - while ! bin/migrate up; do sleep 1; done
+          env:
+            - name: MYSQL_HOST
+              value: database
+            - name: MYSQL_DATABASE
+              value: engelsystem
+            - name: MYSQL_USER
+              value: engelsystem
+            - name: MYSQL_PASSWORD
+              value: engelsystem
+      containers:
+        - image: <CI_IMAGE>
+          name: engelsystem-fpm
+          imagePullPolicy: Always
+          env:
+            - name: MYSQL_HOST
+              value: database
+            - name: MYSQL_DATABASE
+              value: engelsystem
+            - name: MYSQL_USER
+              value: engelsystem
+            - name: MYSQL_PASSWORD
+              value: engelsystem
+            - name: APP_URL
+              value: <CI_ENVIRONMENT_URL>
+            - name: APP_NAME
+              value: '<CI_APP_NAME>'
+        - image: <CI_IMAGE_NGINX>
+          name: engelsystem-nginx
+          imagePullPolicy: Always
+          env:
+            - name: PHP_FPM_HOST
+              value: localhost
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: engelsystem
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    commit: <CI_COMMIT_SHORT_SHA>
+spec:
+  type: ClusterIP
+  ports:
+    - port: 80
+      targetPort: 80
+      name: engelsystem
+  selector:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    tier: application
+
+---
+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: engelsystem-ingress
+  annotations:
+    kubernetes.io/tls-acme: 'true'
+    kubernetes.io/ingress.class: 'nginx'
+    nginx.ingress.kubernetes.io/rewrite-target: /$1
+  labels:
+    app: <CI_PROJECT_PATH_SLUG>
+    environment: <CI_ENVIRONMENT_SLUG>
+    commit: <CI_COMMIT_SHORT_SHA>
+spec:
+  tls:
+    - hosts:
+        - <CI_INGRESS_DOMAIN>
+      secretName: <CI_INGRESS_DOMAIN>
+  rules:
+    - host: <CI_INGRESS_DOMAIN>
+      http:
+        paths:
+          - path: '<CI_INGRESS_PATH>/?(.*)'
+            backend:
+              serviceName: engelsystem
+              servicePort: 80

docker/nginx/Dockerfile

@@ -1,4 +1,6 @@
 FROM nginx:alpine as es_nginx
+COPY docker/nginx/entrypoint.sh /
+ENTRYPOINT /entrypoint.sh
 RUN mkdir -p /var/www/public/ && touch /var/www/public/index.php
 COPY docker/nginx/nginx.conf /etc/nginx/nginx.conf
 

docker/nginx/entrypoint.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env sh
+set -e
+
+sed -i "s/es_php_fpm:/${PHP_FPM_HOST:-es_php_fpm}:/g" /etc/nginx/nginx.conf
+
+# If first arg starts with a `-` or is empty
+if [[ "${1#-}" != "${1}" ]] || [[ -z "${1}" ]]; then
+  set -- nginx -g 'daemon off;' "$@"
+fi
+
+exec "$@"