ouail-bousfiha / devobs

DevObs

TP 1

docker network create app-network # creation du reseau

docker run --name some-postgres -e POSTGRES_PASSWORD=pwd -e POSTGRES_USER=usr -e POSTGRES_DB=db -d --network=app-network postgres
docker run -d --link test:db --network=app-network -p 8080:8080 adminer

BDD

reseau = app-network Server = some-postgres Username = usr Password = pwd Database = bd

dossier "/docker-entrypoint-initdb.d" pour executer script sql au demarrage. # probleme avec WSL docker build -t oui/some-postgres . // rebuild de l'image avec "COPY initdb/ /docker-entrypoint-initdb.d" dans le Dockerfile docker run -d --network=app-network -p 8888:5000 --name test oui/some-postgres docker run -d --network=app-network -p 8888:5000 -v /my/own/datadir:/var/lib/postgresql/data --name test oui/some-postgres # persistance

BACKEND

Docker file hello world :

FROM openjdk:11

COPY Main.java /usr/src/app/ CMD cd /usr/src/app/ ; javac Main.java CMD cd /usr/src/app/ ; java Main.java

docker build -t oui/test . docker run -p 5000:8080 --name test oui/test

application.yml :

• url: "jdbc:postgresql://some-postgres:5432/db"
• username: usr
• password: pwd

Docker file mvn :

FROM maven:3.6.3-jdk-11 AS myapp-build ENV MYAPP_HOME /opt/myapp WORKDIR $MYAPP_HOME COPY pom.xml . COPY src ./src RUN mvn dependency:go-offline RUN mvn package -DskipTests

FROM openjdk:11-jre ENV MYAPP_HOME /opt/myapp WORKDIR $MYAPP_HOME COPY --from=myapp-build $MYAPP_HOME/target/*.jar $MYAPP_HOME/myapp.jar ENTRYPOINT java -jar myapp.jar

docker build -t oui/BACKEND . docker run -p 5000:8080 --name BACKEND --network=app-network oui/BACKEND

http

docker run --rm httpd:2.4 cat /usr/local/apache2/conf/httpd.conf > my-httpd.conf

Dockerfile : FROM httpd:2.4 COPY index.html /usr/local/apache2/htdocs/ COPY httpd.conf /usr/local/apache2/conf/httpd.conf

docker build -t oui/http . docker run -dit --name httpapp --network=app-network -p 80:80 oui/http

decommenter dans le fichier httpd.conf, mod_proxy_http et mod_proxy.

on rajouter dans le fichier httpd.conf :

ServerName localhost <VirtualHost *:80> ProxyPreserveHost On ProxyPass / http://backend:8080/ ProxyPassReverse / http://backend:8080/

docker run -dit --name httpapp --network=app-network -p 8080:8080 oui/http

on cree un fichier docker compose a la racine de tout nos fichier avec les ligne suivante :

version: '3.3' services: backend: build: ./API/simple-api-main/simple-api-main/simple-api networks: - app-network depends_on: - some-postgres some-postgres: build: ./bdd networks: - app-network server-http: build: ./http ports: - 80:80 networks: - app-network depends_on: - backend
networks: app-network:

docker-compose up --build docker push dans nos espace en ligne

TP2

Creation du repertoire Git et mettre les precedent TP dedans

Main.yml final TP2 github workflow :

name: CI devops 2022 CPE

on: push: branches: master pull_request:

workflow_dispatch:

jobs:

backend:

runs-on: ubuntu-18.04

steps:

  - uses: actions/[email protected]


  - name: Set up JDK 11
    uses: actions/setup-java@v2
    with:
        java-version: '11'
        distribution: 'adopt'


  - name: Build and test with Maven
    run: mvn clean verify --file ./API/simple-api-main/simple-api-main/simple-api

build-and-push-docker-image:

needs: backend

runs-on: ubuntu-latest


steps:
  - name: Checkout code
    uses: actions/checkout@v2

  - name: Login to DockerHub
    run: docker login -u ${{secrets.DOCKERHUB_USERNAME}} -p ${{secrets.DOCKERHUB_TOKEN}}

  - name: Build image and push backend
    uses: docker/build-push-action@v2
    with:

      context: ./API/simple-api-main/simple-api-main/simple-api

      tags: ${{secrets.DOCKERHUB_USERNAME}}/backend
      push: ${{ github.ref == 'refs/heads/master' }}

  - name: Build image and push database
    uses: docker/build-push-action@v2
    with:

      context: ./bdd

      tags: ${{secrets.DOCKERHUB_USERNAME}}/some-postgres
      push: ${{ github.ref == 'refs/heads/master' }}

  - name: Build image and push httpd
    uses: docker/build-push-action@v2
    with:

      context: ./http

      tags: ${{secrets.DOCKERHUB_USERNAME}}/server-http
      push: ${{ github.ref == 'refs/heads/master' }}

TP 3

On créé les different roles grace a la commande : ansible-galaxy init roles/xxxx(nom du role)

on met l'odre d'execution des roles dans le fichier playbook.yml :

• hosts: all gather_facts: false become: yes

roles:

• docker
• network
• database
• app
• proxy

on configure les differents roles.

on donne les droits pour la clef id_rsa en lecture et on configure le fichier setup.yml:

all: vars: ansible_user: centos ansible_ssh_private_key_file: /home/ouail/home/id_rsa children: prod: hosts: ouail.bousfiha.takima.cloud

on compile tout