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![Voting App
Dockerfile
# Using official python runtime base image
FROM python:2.7
# Set the application directory
WORKDIR /app
# Install our requirements.txt
ADD requirements.txt /app/requirements.txt
RUN pip install -r requirements.txt
# Copy our code from the current folder to /app inside the container
ADD . /app
# Make port 5000 available for links and/or publish
EXPOSE 80
# Define our command to be run when launching the container
CMD ["python", "app.py"]](https://image.slidesharecdn.com/cicdwithjenkinsanddocker1-160815013911/75/CI-CD-with-Jenkins-and-Docker-DevOps-Meetup-Day-Thailand-22-2048.jpg)
![Result App
Dockerfile
FROM node:0.10
RUN mkdir /app
WORKDIR /app
ADD package.json /app/package.json
RUN npm install && npm ls
RUN mv /app/node_modules /node_modules
ADD . /app
ENV PORT 80
EXPOSE 80
CMD ["node", "server.js"]](https://image.slidesharecdn.com/cicdwithjenkinsanddocker1-160815013911/75/CI-CD-with-Jenkins-and-Docker-DevOps-Meetup-Day-Thailand-23-2048.jpg)
![Worker
Dockerfile
FROM java:7
RUN apt-get update -qq && apt-get install -y maven && apt-get clean
WORKDIR /code
ADD pom.xml /code/pom.xml
RUN ["mvn", "dependency:resolve"]
RUN ["mvn", "verify"]
# Adding source, compile and package into a fat jar
ADD src /code/src
RUN ["mvn", "package"]
CMD ["/usr/lib/jvm/java-7-openjdk-amd64/bin/java", "-jar", "target/worker-jar-with-dependencies.jar"]](https://image.slidesharecdn.com/cicdwithjenkinsanddocker1-160815013911/75/CI-CD-with-Jenkins-and-Docker-DevOps-Meetup-Day-Thailand-24-2048.jpg)
Uploaded byTroublemaker Khunpech
CI/CD with Jenkins and Docker - DevOps Meetup Day Thailand
This document discusses using Jenkins and Docker together for continuous integration and continuous delivery (CI/CD) workflows. It provides an overview of continuous integration, continuous delivery, Jenkins, and Docker. It then demonstrates setting up a CI/CD pipeline using Jenkins and Docker to build, test, and deploy a sample voting application across multiple Docker nodes. The pipeline includes building Docker images from source code in Jenkins, running builds and tests on commits, and deploying updated images to a Docker swarm cluster.
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CI/CD with Jenkins and Docker - DevOps Meetup Day Thailand
- 1. CI/CD with Jenkins andDocker
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- 4. What is Continuousintegration ▷ A development methodology ▷ Verified by builds ○ Unit test ○ Functional test ○ Integration test ▷ Every commit trigger a build
- 5. What is Continuousdelivery ▷ Continuous delivery/deployment ▷ Every commit that passed a build could be deploy to production ▷ Automation deploy
- 6. What is Jenkins? ▷CI/CD application ▷ Easy installation ▷ Rich plugin ▷ Distributed build
- 7.
- 8. What is Docker? OpenSource engine for containers Build, ship, run your application within containers Docker enables separation of concerns
- 9. How can youuse Jenkins & Docker together? Run Jenkins Master & Slave in Docker Build, Test & Deploy Docker Image from Jenkins
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- 12. Tools ▷ SCM: Github ▷CI/CD: Jenkins 2.0 ▷ Platform: docker ▷ Container Orchestration: docker swarm ▷ Service Discovery Tool: Consul
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- 15. Node0 set up ▷Start the Consul container $ docker run -d -p 8500:8500 -h consul --name consul progrium/consul -server -bootstrap Unable to find image 'progrium/consul:latest' locally latest: Pulling from progrium/consul 3b4d28ce80e4: Pull complete e5ab901dcf2d: Pull complete <snip>
- 16. Node1-3 set up ▷Edit DOCKER_OPTS daemon (/etc/default/docker) DOCKER_OPTS="-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store=consul://10.128.0.2:8500/network --cluster-advertise=ens4:2375"
- 17. Install Docker SwarmCluster ▷ Node0: Create Swarm Master # Create Swarm Master $ export TOKEN=$(docker run --rm swarm create) $ docker run -d -p 3375:2375 swarm manage token://$TOKEN # Join Swarm Node $ docker run -d swarm join --addr=10.128.0.3:2375 token://$TOKEN $ docker run -d swarm join --addr=10.128.0.4:2375 token://$TOKEN $ docker run -d swarm join --addr=10.128.0.5:2375 token://$TOKEN
- 18. Jenkins Setup ▷ BuildDocker image inside a docker container ▷ SSH Node with access to docker engine
- 19. Jenkins Setup ▷ Node0:Install Jenkins Master $ docker -H unix:///var/run/docker.sock run -d -p 8080:8080 jenkins
- 20. Jenkins Setup ▷ Node0:Configure Jenkins Master ○ Configure Global Security ○ Install plugins ■ Github plugin ■ CloudBees Docker Build and Publish ○ Create Jenkins Slave node (node1)
- 21. Example Voting App ▷A Python webapp which lets you vote between two options ▷ A Redis queue which collects new votes ▷ A Java worker which consumes votes and stores them in… ▷ A Postgres database backed by a Docker volume ▷ A Node.js webapp which shows the results of the voting in real time
- 22. Voting App Dockerfile # Usingofficial python runtime base image FROM python:2.7 # Set the application directory WORKDIR /app # Install our requirements.txt ADD requirements.txt /app/requirements.txt RUN pip install -r requirements.txt # Copy our code from the current folder to /app inside the container ADD . /app # Make port 5000 available for links and/or publish EXPOSE 80 # Define our command to be run when launching the container CMD ["python", "app.py"]
- 23. Result App Dockerfile FROM node:0.10 RUNmkdir /app WORKDIR /app ADD package.json /app/package.json RUN npm install && npm ls RUN mv /app/node_modules /node_modules ADD . /app ENV PORT 80 EXPOSE 80 CMD ["node", "server.js"]
- 24. Worker Dockerfile FROM java:7 RUN apt-getupdate -qq && apt-get install -y maven && apt-get clean WORKDIR /code ADD pom.xml /code/pom.xml RUN ["mvn", "dependency:resolve"] RUN ["mvn", "verify"] # Adding source, compile and package into a fat jar ADD src /code/src RUN ["mvn", "package"] CMD ["/usr/lib/jvm/java-7-openjdk-amd64/bin/java", "-jar", "target/worker-jar-with-dependencies.jar"]
- 25. Github Webhook Setup ▷Automatically build job when pushes are made to Github
- 26. The Build Jobs ▷Create 3 Jenkins jobs ○ build-voting-app ○ build-worker ○ build-result-app
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- 30. The Deploy Job ▷Create a Jenkins jobs ○ Build section, Execute shell export DOCKER_HOST=10.128.0.4:2375 export DTR="https://registry.hub.docker.com/u" docker-compose -f vote-apps/docker-compose.yml stop voting-app result-app worker docker-compose -f vote-apps/docker-compose.yml rm -f docker-compose -f vote-apps/docker-compose.yml pull voting-app result-app worker docker-compose -f vote-apps/docker-compose.yml up -d
- 31. The Deploy Job docker-compose.yml version:"2" services: voting-app: build: ./voting-app/. networks: - front-tier - back-tier result-app: build: ./result-app/. networks: - front-tier - back-tier worker: image: manomarks/worker networks: - back-tier redis: image: redis:alpine container_name: redis networks: - back-tier db: image: postgres:9.4 container_name: db volumes: - "db-data:/var/lib/postgresql/data" networks: - back-tier volumes: db-data: networks: front-tier: back-tier:
- 32. Deploying The App ▷Clone SCM, edit README.md and push to SCM
- 33. Deploying The App root@node2:~#docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0100cf6b0c14 engineerball/result-app:47d362f35a115f2098c80a11e161eef626e1dbcb "node server.js" 2 hours ago Up 2 hours 0.0.0.0:5001->80/tcp voteapps_result-app_1 296eee196e4e engineerball/voting-app:47d362f35a115f2098c80a11e161eef626e1dbcb "python app.py" 2 hours ago Up 2 hours 0.0.0.0:5000->80/tcp voteapps_voting-app_1 40f8d8aec4ca engineerball/worker:47d362f35a115f2098c80a11e161eef626e1dbcb "/usr/lib/jvm/java-7-" 2 hours ago Up 2 hours voteapps_worker_1 44da08df3d5c postgres:9.4 "/docker-entrypoint.s" 2 hours ago Up 2 hours 5432/tcp voteapps_db_1 fa10362631cb redis "docker-entrypoint.sh" 2 hours ago Up 2 hours 6379/tcp voteapps_redis_1
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- 38. In Conclusion ▷ Automateis the key ▷ Docker simplifies environment problems ▷ Jenkins is ready for Docker and CD