Jenkinsfile: Ocean Right Sizing Pipeline

right_sizing_pipeline

#!/usr/bin/env groovy

podTemplate(containers: [
    containerTemplate(name: 'docker', 
    image: 'docker', 
    command: 'cat', 
    ttyEnabled: true),
    containerTemplate(name: 'python', 
    image: 'python', 
    command: 'cat', 
    ttyEnabled: true),
    containerTemplate(name: 'kubectl', 
    image: 'lachlanevenson/k8s-kubectl:v1.8.8', 
    command: 'cat', 
    ttyEnabled: true)
],
volumes: [
    hostPathVolume(mountPath: '/var/run/docker.sock', 
    hostPath: '/var/run/docker.sock')
]) {
node(POD_LABEL) {
    stage('Fetch Git') {
        try {
            container('docker') {
                dir('repo') {
                    git url: 'https://github.com/nironkoren/flask-http.git', 
                    branch: 'master'
            }
        }
    }
        catch (exc) {
            println "Failed to fetch repository from Git"
            throw(exc)
        }
    }
    stage('Build Docker Image') {
        container('docker') {
            try {
                sh("""
                cd ./repo
                docker build .
                """)
            }
            catch (exc) {
                println "Failed to build docker image"
                throw(exc)
            }
        }
    }
    stage('Get Ocean Right Sizing') {
        container('python') {
            try {
                git url: 'https://github.com/nironkoren/spotinst-sdk-python.git', 
                branch: 'master'
                sh 'pip3 install -U requests PyYaml'
                sh 'wget https://raw.githubusercontent.com/nironkoren/flask-http/master/get_sizing.py'
                // Generating a 'kubectl' cmd based on Right Sizing recommendations
                cmd_output = sh(script: ('python ./get_sizing.py -d <DEPLOYMENT> -r <RATIO> ' +
                '-t <API_TOKEN> ' +
                '-a <ACCOUNT_ID> -o <OCEAN_ID> -n <NAMESPACE>'), returnStdout: true).trim()
                env.CMD_OUT = cmd_output
            }
            catch (exc) {
                println "Failed to get suggestions from Ocean"
                throw(exc)
            }
        }
    }
    stage('K8S Deploy') {
        container('kubectl') {
            if (CMD_OUT) {
                try {
                sh (script: ('${CMD_OUT} ' +
                            '--token $(cat /var/run/secrets/kubernetes.io/serviceaccount/token) ' +
                            '--certificate-authority  /var/run/secrets/kubernetes.io/serviceaccount/ca.crt ' +
                            '--server https://kubernetes.default.svc.cluster.local'))
                }
                catch (exc) {
                    println "Failed to set deployment resources"
                    throw(exc)
                }
                        }
            else {
                println "No adjustment needed"
            }
        }
    }
  }
}