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Jenkinsfile
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Jenkinsfile
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// Initialize a LinkedHashMap / object to share between stages
def pipelineContext = [:]
pipeline {
agent any
environment {
// @TODO: use variable
NGINX_BUILD_ARG = "-f ./nginx.build/Dockerfile ."
DOCKER_NGINX_IMAGE_TAG = "my-app-nginx:build"
IMAGE_BUILD_ID = "my-app:build-${env.BUILD_ID}"
IMAGE_STABLE_TAG = "my-app:stable"
IMAGE_CANDIDATE_NAME = "release4test"
// @TODO: do not use variable from Dockerfile
URL_FOR_CHECK = "${env.URL_FOR_CHECK}"
}
stages {
stage('Build nginx from source inside the container') {
steps {
echo "Check base nginx image exists"
script {
def ret = sh(script: "#!/bin/bash\n" +
"docker images -q " + "${env.DOCKER_NGINX_IMAGE_TAG}" ,
returnStdout: true)
if (ret) {
echo 'Local base nginx image (' + "${env.DOCKER_NGINX_IMAGE_TAG}" + ') already exists'
} else {
echo 'Build local base nginx image'
dockerImage = docker.build("${env.DOCKER_NGINX_IMAGE_TAG}", "${NGINX_BUILD_ARG}")
}
}
}
}
stage('Create a production ready container') {
steps {
script {
dockerImage = docker.build("${env.IMAGE_BUILD_ID}", ' -f Dockerfile .')
pipelineContext.dockerImage = dockerImage
}
}
}
stage('Run this container on the same instance') {
steps {
script {
sh 'docker ps -q -f name=' + "${env.IMAGE_CANDIDATE_NAME}" + ' | xargs --no-run-if-empty docker rm -f'
}
script {
// sh 'docker ps -q -f name=' + "${env.IMAGE_STABLE_TAG}" + ' | xargs --no-run-if-empty docker rm -f'
sh 'docker ps -a | awk \'{ print $1,$2 }\' | grep '+"${env.IMAGE_STABLE_TAG}"+' | awk \'{print $1 }\' | xargs -I {} docker rm -f {}'
}
script {
pipelineContext.dockerContainer = pipelineContext.dockerImage.run('--name=' + "${env.IMAGE_CANDIDATE_NAME}" + ' -p80:80')
}
}
}
stage('Test if it is running successfully and responding'){
steps {
script {
sleep(time:3, unit:"SECONDS");
def STATUSCODE = sh script: 'curl --silent --output /dev/stderr --write-out "%{http_code}" ' + "${env.URL_FOR_CHECK}", returnStdout: true
echo 'Status code: ' + STATUSCODE
def CONTENT = sh script: 'curl --silent ' + "${env.URL_FOR_CHECK}", returnStdout: true
String trimmedString = CONTENT.trim()
echo 'Content: ' + trimmedString
// do rollback
if ( (STATUSCODE != '200' || STATUSCODE != '201') && trimmedString != 'Welcome Nginx Builder' ) {
echo 'Do rollback'
// remove failed release
if (pipelineContext && pipelineContext.dockerContainer) {
pipelineContext.dockerContainer.stop()
}
// run previouse stable release
sh(script: "#!/bin/bash\n" + "docker run -d --rm -p80:80 ${env.IMAGE_STABLE_TAG} ", returnStdout: true)
}
else {
echo 'Create new stable version'
sh(script: "#!/bin/bash\n" +
"docker tag " +
"${env.IMAGE_BUILD_ID}" + " " + "${env.IMAGE_STABLE_TAG}" ,
returnStdout: true)
}
}
}
}
//
// stage('Dangling Containers') {
// steps{
// sh '''docker ps -q -f status=exited | xargs --no-run-if-empty docker rm'''
// }
// }
//
// stage('Dangling Images') {
// steps{
// sh '''docker images -q -f dangling=true | xargs --no-run-if-empty docker rmi'''
// }
// }
}// stages
post {
always {
echo 'Finish: ' + "${env.URL_FOR_CHECK}"
}
}
}