image-mover

A simple application utility for quickly moving Docker Images between registries. Use Cases include:

1. Migrating lists of Docker Images between Registries.
2. Populating a new Registry or Harbor instance quickly with Docker Images.
3. Replicating the contents of one registry to another registry.

Installation

Run as a Docker Container or locally with Python already installed.

Requirements

If running locally as a script you will need Docker CLI installed. Network access to SRC and DST Docker Registries. Only tested with Python 3.6.1

Usage

usage: image-mover.py [-h] [-s SOURCE_REGISTRY] [-i IMAGES] -m MODE -d
                      DESTINATION_REGISTRY [-n DESTINATION_NAMESPACE]
                      [-u TARGET_REGISTRY_USER] [-p TARGET_REGISTRY_PASSWORD]
                      [--secure]

image-mover.py: the following arguments are required: -m/ --mode, -d/ --destination_registry

Harbor

If the target Registry is Harbor you must specify -n DESTINATION_NAMESPACE which is a Harbor Project that must already exist. The default Harbor Projects is called "Library".

Habor also requires --secure to force HTTPS connections.

Examples

Example 1 - Migrate ALL images from one Registry to another.

$ python3 image-mover.py -s localhost:5000 -m sync -d localhost:5001

Example 2 - Migrate a list of images to the target registry to "library" project.

$ python3 image-mover.py -i nginx:latest,tomcat -m sync -d registry.prod.domain.com

Example 3 - Migrate a list of images to a Harbor target registry to "library" project.

$ python3 image-mover.py -i nginx:latest,tomcat -m sync -d .domain.com -u admin -p password -n library --secure

Functionality not implemented yet