Tag and push an image to a private registry
WHAT IT TESTS: tag-and-push workflow plus registry auth. OUTLINE: authenticate with docker login, retag the image to include the registry host and repo path, then docker push that full reference.
WHAT IT TESTS: whether you understand that an image reference encodes its destination registry and that pushing requires authentication. ANSWER OUTLINE: log in to the registry, for ECR using the helper that pipes a token into docker login; retag the local image with docker tag so its name includes the full registry host and repository path plus a version tag; then docker push that exact reference. RED FLAG: pushing the short local name, which targets Docker Hub, or forgetting to authenticate first.
Read the original → interview
- #docker
- #registry
- #ecr
- #cli
- #image-push
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