stage("Docker") {
  dir(path) {
    docker.build("my-image:latest")
  }
  docker.withRegistry("https://<my-aws-id>.dkr.ecr.eu-central-1.amazonaws.com", "ecr:eu-central-1:aws-jenkins") {
    // debug
    sh "cat /root/.dockercfg" 
    docker.image("my-image:latest").push()
  }
}

[Pipeline] withDockerRegistry
Wrote authentication to /root/.dockercfg
[Pipeline] {
[Pipeline] sh
[docker-emotion-compilers] Running shell script
+ cat /root/.dockercfg
{"https://<my-aws-id>.dkr.ecr.eu-central-1.amazonaws.com": {
"auth": "[...]",
"email": "nobody@example.com"
}}[Pipeline] sh
[docker-emotion-compilers] Running shell script
+ docker tag --force=true my-image:latest <my-aws-id>.dkr.ecr.eu-central-1.amazonaws.com/my-image:latest
Warning: '--force' is deprecated, it will be removed soon. See usage.
[Pipeline] sh
[docker-emotion-compilers] Running shell script
+ docker push <my-aws-id>.dkr.ecr.eu-central-1.amazonaws.com/my-image:latest
The push refers to a repository [<my-aws-id>.dkr.ecr.eu-central-1.amazonaws.com/my-image]
e30bf54e0f87: Preparing
b9f2c30c0d28: Preparing
5defc95691fd: Preparing
295d6a056bfd: Preparing
no basic auth credentials
[Pipeline] }
[Pipeline] // withDockerRegistry