├── Dockerfile
├── Jenkinsfile
├── README.md
├── main.js
└── pipeline.png


/Dockerfile:
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1 | FROM node:10.15.3-stretch
2 | 
3 | ADD main.js /app/main.js
4 | 
5 | ENTRYPOINT [ "node", "/app/main.js" ]
6 | 


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/Jenkinsfile:
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 1 | pipeline {
 2 |   agent {
 3 |     kubernetes {
 4 |       label 'jenkins-slave'
 5 |       defaultContainer 'jnlp'
 6 |       yaml """
 7 | apiVersion: v1
 8 | kind: Pod
 9 | spec:
10 |   containers:
11 |   - name: dind
12 |     image: docker:18.09-dind
13 |     securityContext:
14 |       privileged: true
15 |   - name: docker
16 |     env:
17 |     - name: DOCKER_HOST
18 |       value: 127.0.0.1
19 |     image: docker:18.09
20 |     command:
21 |     - cat
22 |     tty: true
23 |   - name: tools
24 |     image: argoproj/argo-cd-ci-builder:v0.13.1
25 |     command:
26 |     - cat
27 |     tty: true
28 | """
29 |     }
30 |   }
31 |   stages {
32 | 
33 |     stage('Build') {
34 |       environment {
35 |         DOCKERHUB_CREDS = credentials('dockerhub')
36 |       }
37 |       steps {
38 |         container('docker') {
39 |           // Build new image
40 |           sh "until docker ps; do sleep 3; done && docker build -t alexmt/argocd-demo:${env.GIT_COMMIT} ."
41 |           // Publish new image
42 |           sh "docker login --username $DOCKERHUB_CREDS_USR --password $DOCKERHUB_CREDS_PSW && docker push alexmt/argocd-demo:${env.GIT_COMMIT}"
43 |         }
44 |       }
45 |     }
46 | 
47 |     stage('Deploy E2E') {
48 |       environment {
49 |         GIT_CREDS = credentials('git')
50 |       }
51 |       steps {
52 |         container('tools') {
53 |           sh "git clone https://$GIT_CREDS_USR:$GIT_CREDS_PSW@github.com/alexmt/argocd-demo-deploy.git"
54 |           sh "git config --global user.email 'ci@ci.com'"
55 | 
56 |           dir("argocd-demo-deploy") {
57 |             sh "cd ./e2e && kustomize edit set image alexmt/argocd-demo:${env.GIT_COMMIT}"
58 |             sh "git commit -am 'Publish new version' && git push || echo 'no changes'"
59 |           }
60 |         }
61 |       }
62 |     }
63 | 
64 |     stage('Deploy to Prod') {
65 |       steps {
66 |         input message:'Approve deployment?'
67 |         container('tools') {
68 |           dir("argocd-demo-deploy") {
69 |             sh "cd ./prod && kustomize edit set image alexmt/argocd-demo:${env.GIT_COMMIT}"
70 |             sh "git commit -am 'Publish new version' && git push || echo 'no changes'"
71 |           }
72 |         }
73 |       }
74 |     }
75 |   }
76 | }
77 | 


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/README.md:
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 1 | # Argo CD Demo
 2 | 
 3 | Repository demonstrates an application deployment using Jenkins and Argo CD.
 4 | 
 5 | The application deployment manifests are located in https://github.com/alexmt/argocd-demo-deploy. The
 6 | application has `e2e` and `prod` environment. The deployment process is implemented using using GitOps methodology and automated using Jenkins pipeline.
 7 | 
 8 | ![pipeline](./pipeline.png)
 9 | 
10 | The pipeline is responsible for building the Docker image and updating deployment repository. The deployment changes are pushed to the Kubernetes cluster by [Argo CD](https://cd.apps.argoproj.io)
11 | 


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/main.js:
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 1 | const http = require('http');
 2 | 
 3 | const hostname = '0.0.0.0';
 4 | const port = 8080;
 5 | 
 6 | console.log(process.env.ENVIRONMENT || 'e2e');
 7 | 
 8 | if (process.env.ENVIRONMENT === 'prod') {	
 9 |     process.exit(1);	
10 | }
11 | 
12 | const server = http.createServer((_, res) => {
13 |   res.statusCode = 200;
14 |   res.setHeader('Content-Type', 'text/plain');
15 |   res.end('Hello, Jenkins World!\n');
16 | });
17 | 
18 | 
19 | server.listen(port, hostname, () => {
20 |   console.log(`Server running at http://${hostname}:${port}/`);
21 | });
22 | 


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/pipeline.png:
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https://raw.githubusercontent.com/alexmt/argocd-demo/3824e3ce01af4947d4375c2d8fb22159d12e5c04/pipeline.png


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