homework 13.1: complete task 2

src/homework/12-kubernetes/12.4/readme.md

@@ -83,6 +83,7 @@ ansible-playbook -u ubuntu -i inventory/mycluster/inventory.ini cluster.yml -b -
 
 ```shell
 ssh ubuntu@62.84.124.154
+mkdir ~/.kube
 sudo cp /etc/kubernetes/admin.conf ~/.kube/config
 sudo chown ubuntu:ubuntu ~/.kube/config
 ```

src/homework/13-kubernates-config/13.1/config/production/backend.yml

@@ -0,0 +1,42 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: prod-app
+    service: backend
+  name: prod-app-backend
+  namespace: default
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: prod-app
+      service: backend
+  template:
+    metadata:
+      labels:
+        app: prod-app
+        service: backend
+    spec:
+      containers:
+        - image: dannecron/netology-devops-k8s-app:backend-latest
+          imagePullPolicy: Always
+          name: netology-backend
+          env:
+            - name: DATABASE_URL
+              value: "postgres://pg_user:pg_passwd@postgres:5432/news"
+      terminationGracePeriodSeconds: 30
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: prod-backend
+  namespace: default
+spec:
+  ports:
+    - name: web
+      port: 9000
+  selector:
+    app: prod-app
+    service: backend

src/homework/13-kubernates-config/13.1/config/production/database.yml

@@ -0,0 +1,87 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-config
+  labels:
+    app: postgres
+data:
+  POSTGRES_DB: news
+  POSTGRES_USER: db_user
+  POSTGRES_PASSWORD: db_passwd
+  PGDATA: /var/lib/postgresql/data
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: postgres-pv-volume  # Sets PV's name
+  labels:
+    type: local  # Sets PV's type to local
+    app: postgres
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 1Gi # Sets PV Volume
+  accessModes:
+    - ReadWriteMany
+  hostPath:
+    path: "/mnt/pgsql_data"
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-pv-claim  # Sets name of PVC
+  labels:
+    app: postgres
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteMany  # Sets read and write access
+  resources:
+    requests:
+      storage: 1Gi  # Sets volume size
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  labels:
+    app: prod-app
+    service: database
+    db-kind: postgresql
+  name: testing-db
+  namespace: default
+spec:
+  selector:
+    matchLabels:
+      app: prod-app
+      service: database
+      db-kind: postgresql
+  serviceName: postgres
+  replicas: 1
+  podManagementPolicy: "Parallel"
+  updateStrategy:
+    type: "RollingUpdate"
+  template:
+    metadata:
+      labels:
+        app: prod-app
+        service: database
+        db-kind: postgresql
+    spec:
+      terminationGracePeriodSeconds: 60
+      containers:
+        - name: postgres
+          image: postgres:13-alpine # Sets Image
+          imagePullPolicy: "IfNotPresent"
+          ports:
+            - containerPort: 5432  # Exposes container port
+          envFrom:
+            - configMapRef:
+                name: postgres-config
+          volumeMounts:
+            - mountPath: /var/lib/postgresql/data
+              name: postgredb
+      volumes:
+        - name: postgredb
+          persistentVolumeClaim:
+            claimName: postgres-pv-claim

src/homework/13-kubernates-config/13.1/config/production/frontend.yml

@@ -0,0 +1,42 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: prod-app
+    service: frontend
+  name: prod-app-frontend
+  namespace: default
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: prod-app
+      service: frontend
+  template:
+    metadata:
+      labels:
+        app: prod-app
+        service: frontend
+    spec:
+      containers:
+        - image: dannecron/netology-devops-k8s-app:frontend-latest
+          imagePullPolicy: Always
+          name: netology-frontend
+          env:
+            - name: BASE_URL
+              value: "http://prod-backend:9000"
+      terminationGracePeriodSeconds: 30
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: prod-frontend
+  namespace: default
+spec:
+  ports:
+    - name: web
+      port: 80
+  selector:
+    app: prod-app
+    service: frontend

src/homework/13-kubernates-config/13.1/readme.md

@@ -58,11 +58,29 @@ testing-db-0                   1/1     Running   5 (6m20s ago)   7m53s
 > * в окружении фронта прописан адрес сервиса бекенда;
 > * в окружении бекенда прописан адрес сервиса базы данных.
 
-// todo
+Разделение на отдельные деплойменты будет выглядеть следующим образом:
+* БД ([production/database.yml](./config/production/database.yml)) остаётся почти без изменений:
+  всё так же будут создаваться `ConfigMap`, `PersistentVolume`, `PersistentVolumeClaim` и сам `StatefulSet`
+* Для frontend ([production/frontend.yml](./config/production/frontend.yml)) и backend ([production/backend.yml](./config/production/backend.yml))
+  созданы собственные `deployment` и `service`.
 
-### Задание 3
+Как и в прошлом задании нужно применить данные конфигурации:
 
-> Приложению потребовалось внешнее api, и для его использования лучше добавить endpoint в кластер, направленный на это api. Требования:
+```shell
-> * добавлен endpoint до внешнего api (например, геокодер).
+kubectl apply -f production/database.yml
+kubectl apply -f production/backend.yml
+kubectl apply -f production/frontend.yml
+```
 
-// todo
+Затем нужно проверить, что все поды успешно запустились:
+
+```shell
+kubectl get pods
+```
+
+```text
+NAME                                READY   STATUS    RESTARTS   AGE
+prod-app-backend-784f995b5f-vvcr7   1/1     Running   0          84s
+prod-app-frontend-947f64949-6vtn7   1/1     Running   0          30s
+testing-db-0                        1/1     Running   0          4m15s
+```