How to tag docker image with jenkins pipeline parameter?

Question

I have a Jenkins pipeline. A stage with build image is as below:

stage('Build image'){
       sh 'docker build -t myImage --file $WORKSPACE/build/Dockerfile .'
            }

I want to add 'BUILD_NUMBER' jenkins variable to tag the image.

Is the below approach is correct? Or any other way?

stage('Build image'){
       sh 'docker build -t myImage:${BUILD_NUMBER} --file $WORKSPACE/build/Dockerfile .'
            }

Thanks in advance.

Answer 1

Below worked for me:

stage('Build image'){
       sh 'docker build -t myImage:${BUILD_NUMBER} --file $WORKSPACE/build/Dockerfile .'
            }

Thanks.

Answer 2

can you try something like this :

       sh 'docker build -t myImage:${env.BUILD_NUMBER} --file $WORKSPACE/build/Dockerfile .'

i remove one ':' and also add env before BUILD_NUMBER can be variant according to your jenkins