Jenkins + HTTPS Git + .netrc

Jenkinsfile

 environment {
        JENKINS_GIT = credentials('jenkins_svc-git.credentials')
    }
….
 stage('Deploy to TEST') {
            when {
                branch 'master'

                expression {
                    input message: 'Deploy to test system?'
                    return true
                }
            }

            options {
                timeout(time: 10, unit: 'MINUTES')
            }

            steps {
                script {
                    sh "git config --local user.name 'Jenkins CI'"
                    sh "git config --local user.email 'jenkins@acme.com'"
                    sh "git remote set-url origin https://srv.acme.com/bitbucket/scm/proj/repo.git"
                    sh 'echo "machine srv.acme.com\nlogin ${JENKINS_GIT_USR}\npassword ${JENKINS_GIT_PSW}" > .netrc; chmod 600 ./.netrc; '
                    sh "HOME=`pwd` git push --tags"