[Hometask 8] add test build images deploy in kubernetes us githubactions

.github/workflows/HOMEWORK8.yml

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+
+name: Deploy in kubernetes
+
+on:
+  push:
+    branches: [ Hometask_8 ]
+
+jobs:
+  security_tes:
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@master
+    - name: Run Snyk to check for vulnerabilities
+      uses: snyk/actions/node@master
+      env:
+        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+      with:
+        command: test ./SergeyLadutko/Hometask_8/
+
+  build_and_push:
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v1
+    - name: Login to DockerHub Registry
+      run: echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
+    - name: Create tag
+      run: |
+        TAG=`echo $GITHUB_REF| sed 's/\//\ /g' | awk '{print $3}'`
+        echo $TAG
+        sed -i  "s|latest|"$TAG"|g" SergeyLadutko/Hometask_8/kubernetes/deployment.yml
+        sed -i  "s|TEST|"$GITHUB_SHA"|g" SergeyLadutko/Hometask_8/kubernetes/deployment.yml
+        cat ./SergeyLadutko/Hometask_8/kubernetes/deployment.yml
+    - name: Build the tagged Docker image
+      run: docker build -t sergeyladutko/kuber:TAG ./SergeyLadutko/Hometask_8/
+    - name: Push the tagged Docker image
+      run: docker push sergeyladutko/kuber:TAG
+
+  deploy_kubernetes:
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@master
+    - name: Deploy to cluster
+      uses: steebchen/kubectl@master
+      env:
+        KUBE_CONFIG_DATA: ${{ secrets.KUBE_CONFIG_DATA }}
+        KUBECTL_VERSION: "1.15"
+      with:
+        args: apply -f ./SergeyLadutko/Hometask_8/kubernetes/deployment.yml
+

SergeyLadutko/Hometask_8/Dockerfile

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+FROM node:10-alpine
+
+RUN apk add --update \
+    curl \
+    && rm -rf /var/cache/apk/*
+
+RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
+
+WORKDIR /home/node/app
+
+COPY package*.json ./
+
+USER node
+
+RUN npm install
+
+COPY --chown=node:node . .
+
+EXPOSE 8080
+ENTRYPOINT [ "node", "app.js" ]

SergeyLadutko/Hometask_8/README.md

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+# Kubernetes
+
+[![N|Solid](https://raw.githubusercontent.com/kubernetes/kubernetes/master/logo/logo.png)](https://kubernetes.io)
+
+[![Build Status](https://travis-ci.org/joemccann/dillinger.svg?branch=master)](https://travis-ci.org/joemccann/dillinger)
+
+### Command
+
+kubernetes command
+```sh
+$ kubectl run kubia --image=luksa/kubia --port=8080 --generator=run/v1
+```
+запуск имеджа + replicaset
+```sh
+$ kubectl expose rc kubia --type=LoadBalancer --name kubia-http
+```
+добавления к нашему имеджу лоадбалансера
+```sh
+$ kubectl explain pods
+```
+для вывода описания манифеста для пода
+```sh
+$ kubectl get po kubia-manual -o yaml 
+```
+описание пода девопс
+```sh
+$ kubectl get po --show-labels 
+```
+вывод инф о pods  с метками
+```sh
+$ kubectl get po -L creation_method,env 
+```
+с конкретными метками
+```sh
+$ kubectl label po kubia-manual creation_method=manual
+```
+дать метку меток
+```sh
+$ kubectl label po kubia-manual-v2 env=debug --overwrite
+```
+изменить метку
+```sh
+$ kubectl get po -l creation_method=manual
+```
+вывести под с конкретной меткой
+```sh
+$ kubectl get po -l env
+```
+вывести с любым значением метки или же не имеют такую метку '!env'
+```sh
+$ kubectl get svc --all-namespaces
+```
+посмотреть во всех нэймспэсах
+```sh
+$ kubectl delete po -l rel=canary
+```
+удаление всех подов с конкретными метками
+
+```sh
+$ kubectl logs mypod --previous
+```
+вывести логи удаленного контейнера 
+```sh
+$ kubectl scale rc kubia --replicas=10
+```
+изменить количство подов
+```sh
+$ kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="ExternalIP")].address}'
+```
+узнать ip node
+```sh
+$ kubectl get endpoints
+```
+обновить имедж на лету 
+```sh
+$ kubectl set image deployment my-deployment `*=nginx:1.13`
+```
+узнать все endpoints
+откатить на старый деплоймент 
+```sh 
+$ kubectl rollout undo deployment my-deployment
+```
+посмотреть историю отката
+```sh
+kubectl rollout history deployment deployment_name
+```
+откатиться на канкретную ревизию
+
+```sh
+kubectl rollout undo deployment deployment_name --to-revision=1
+```
+статус компанентов
+```sh
+$ kubectl get componentstatuses
+```
+вынести порт на локал хост
+```sh
+$ kubectl port-forward pod_name 8000:80
+```
+
+###HELM
+
+[![N|Solid](https://d33wubrfki0l68.cloudfront.net/d9a3dd9398904a13c211c703709d7ad7daaef72f/3f473/images/kubernetes-helm.png)](https://https://helm.sh/)
+
+
+```sh
+$ helm upgrade test-deploy  --install  ./test-helm/ --set "TEST=test125"
+```

SergeyLadutko/Hometask_8/app.js

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+const express = require('express');
+const app = express();
+const router = express.Router();
+const db = require('./db');
+const sharks = require('./routes/sharks');
+
+const path = __dirname + '/views/';
+const port = 8080;
+
+app.engine('html', require('ejs').renderFile);
+app.set('view engine', 'html');
+app.use(express.urlencoded({ extended: true }));
+app.use(express.static(path));
+app.use('/sharks', sharks);
+
+app.listen(port, function () {
+  console.log('Example app listening on port 8080!')
+})

SergeyLadutko/Hometask_8/controllers/sharks.js

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+const path = require('path');
+const Shark = require('../models/sharks');
+
+exports.index = function (req, res) {
+    res.sendFile(path.resolve('views/sharks.html'));
+};
+
+exports.create = function (req, res) {
+    var newShark = new Shark(req.body);
+    console.log(req.body);
+    newShark.save(function (err) {
+            if(err) {
+            res.status(400).send('Unable to save shark to database');
+        } else {
+            res.redirect('/sharks/getshark');
+        }
+  });
+               };
+
+exports.list = function (req, res) {
+        Shark.find({}).exec(function (err, sharks) {
+                if (err) {
+                        return res.send(500, err);
+                }
+                res.render('getshark', {
+                        sharks: sharks
+             });
+        });
+};

SergeyLadutko/Hometask_8/db.js

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+const mongoose = require('mongoose');
+
+const {
+  MONGO_USERNAME,
+  MONGO_PASSWORD,
+  MONGO_HOSTNAME,
+  MONGO_PORT,
+  MONGO_DB
+} = process.env;
+
+const options = {
+  useNewUrlParser: true,
+  reconnectTries: Number.MAX_VALUE,
+  reconnectInterval: 500,
+  connectTimeoutMS: 10000,
+};
+
+const url = `mongodb://${MONGO_USERNAME}:${MONGO_PASSWORD}@${MONGO_HOSTNAME}:${MONGO_PORT}/${MONGO_DB}?authSource=admin`;
+
+mongoose.connect(url, options).then( function() {
+  console.log('MongoDB is connected');
+})
+  .catch( function(err) {
+  console.log(err);
+});

SergeyLadutko/Hometask_8/docker-compose.yml

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+version: '3'
+
+services:
+  shark:
+    build: .
+    # image: shark:1
+    environment:
+      - MONGO_USERNAME=test
+      - MONGO_PASSWORD=test
+      - MONGO_HOSTNAME=mongodb
+      - MONGO_PORT=27017
+      - MONGO_DB=test
+    # command: ./wait-for.sh mongodb:27017 -- node ./app.js
+    ports:
+      - "1234:8080"
+    restart: always
+
+  mongodb:
+    image: mongo:latest
+    environment:
+      - MONGO_INITDB_ROOT_USERNAME=test
+      - MONGO_INITDB_ROOT_PASSWORD=test
+    logging:
+      driver: none
+    ports:
+      - "26977:27017"
+    volumes:
+      - mongodb:/data/db
+    command: --wiredTigerCacheSizeGB 6
+    restart: always
+
+volumes:
+  mongodb:

SergeyLadutko/Hometask_8/kubernetes/configmap.yml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: shark-config
+  namespace: default
+data:
+  MONGO_USERNAME: test
+  MONGO_HOSTNAME: mongodb
+  MONGO_PORT: '27017'
+  MONGO_DB: test

SergeyLadutko/Hometask_8/kubernetes/deployment.yml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: sharks
+spec:
+  sessionAffinity: ClientIP
+  selector:
+    app: sharks
+  ports:
+    - port: 80
+      targetPort: 8080
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: sharks-deployment
+  labels:
+    app: sharks
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: sharks
+  strategy:
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app: sharks
+    spec:
+      imagePullSecrets:
+      - name: regcred
+      containers:
+      - name: sharks
+        envFrom:
+        - configMapRef:
+            name: shark-config
+        - secretRef:
+            name: mysecret
+        env:
+        - name: RELOADENV
+          value: TEST
+        image: sergeyladutko/kuber:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8080
+            httpHeaders:
+            - name: Custom-Header
+              value: Awesome
+          initialDelaySeconds: 3
+          periodSeconds: 3
+        readinessProbe:
+          exec:
+            command:
+            - curl
+            - mongodb:27017

SergeyLadutko/Hometask_8/kubernetes/ing.yml

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+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: test-ingress
+spec:
+  rules:
+  - host: shark.sergeyladutko.xyz
+    http:
+      paths:
+      - backend:
+          serviceName: sharks
+          servicePort: 80