Docker Hub Credentials in Jenkins

Never hardcode your Docker Hub password in the Jenkinsfile — store it in Jenkins Credentials and reference it by ID.

Add the credentials

1. Jenkins → Manage Jenkins → Credentials → System → Global → Add Credentials
2. Kind = Username and password
   • Username = your Docker Hub username
   • Password = Docker Hub password or, better, an access token
   • ID = dockerhub-creds — the Jenkinsfile refers to this ID
3. Save.

How the pipeline uses it

In the Jenkinsfile, credentials('dockerhub-creds') injects two variables:

• $DOCKERHUB_CREDS_USR = the username
• $DOCKERHUB_CREDS_PSW = the password

environment {
    DOCKERHUB_CREDS = credentials('dockerhub-creds')
}

Then log in securely, piping the password via stdin so it never appears in logs:

echo $DOCKERHUB_CREDS_PSW | docker login -u $DOCKERHUB_CREDS_USR --password-stdin

See also [[jenkins-jenkinsfile-explained]] and [[docker-hub-push-images]].