This is my pipeline script:

docker.withServer('tcp://<servername>:2376', '<jenkins-credential-id) {
            docker.withRegistry("https://<account_aws>.dkr.ecr.eu-west-1.amazonaws.com", "ecr:eu-west-1:6e420d6b-f42b-45f2-b7a4-7888b2f4bd14"){
                docker.image("<account_aws>.dkr.ecr.eu-west-1.amazonaws.com/com-pro-callbacks-collector:callbacks-collector-3").pull()
            }
        }

When I execute it the result is:

 docker pull <account_aws>.dkr.ecr.eu-west-1.amazonaws.com/com-pro-callbacks-collector:callbacks-collector-3
Post http://<servername>:2376/v1.27/images/create?fromImage=<account_aws>.dkr.ecr.eu-west-1.amazonaws.com%2Fcom-pro-callbacks-collector&tag=callbacks-collector-3: malformed HTTP response "\x15\x03\x01\x00\x02\x02\x16".

• Are you trying to connect to a TLS-enabled daemon without TLS?