Public Cloud > Container > Container Registry > Pulling and pushing images in Harbor

1.6 Pulling and pushing images in Harbor

Topics:

Downloading images from Harbor

In the following example, replace URLregistry with the URL shown on the Container Registry details page.

Access Harbor and identify the full path of the image, for example:
URLregistry/project/image:tag
log in to the registry using your credentials:
docker login URLregistry

or, if you are using containerd:
crictl login URLregistry
download the required image:
docker pull URLregistry/project/image:tag

or:
ctr images pull URLregistry/project/image:tag
verify that the image has been downloaded:
docker images
if the registry uses an unrecognized certificate or an HTTP connection, add the CA certificate to the Docker client or configure the registry as an insecure registry.

Official Harbor documentation: Pulling Images.

In the following example, replace URLoldregistry and URLnewregistry with the URLs shown on the respective Container Registry details pages.

Log in to the new Harbor registry:
docker login URLnewregistry
retag the local image to point to the new registry:
docker tag URLoldregistry/project/image:tag URLnewregistry/newproject/image:tag
upload the image to the new registry:
docker push URLnewregistry/newproject/image:tag
verify the upload using the Harbor interface or with:
docker pull URLnewregistry/newproject/image:tag
if you are using Kubernetes, to allow pods to download images from a private Harbor project, create a Docker Registry Secret and reference it in your manifests:
kubectl create secret docker-registry harbor-cred \ --docker-server=URLnewregistry \ --docker-username=<username> \ --docker-password=<password> \ --docker-email=<email> # Example in a Deployment spec: imagePullSecrets: - name: harbor-cred containers: - name: myapp image: URLnewregistry/newproject/image:tag

Official Harbor documentation: Pushing Images.

Related guides: