Docker challenge

Copy a container image from one repository to another the pro way

 sudo apt update && sudo apt install -y skopeo

Copy the Image Using skopeo: You can use skopeo copy to move the image directly from the source to the destination registry.

 # Set the source and destination images
 SOURCE_REPO="docker://source/repository:image-tag"
 DEST_REPO="docker://destination/repository:image-tag"

 # Copy image from source to destination
 skopeo copy $SOURCE_REPO $DEST_REPO

Alternatively use docker buildx

 # Set source and destination repositories
 SOURCE_REPO="source/repository:image-tag"
 DEST_REPO="destination/repository:image-tag"

 # Create a new multi-platform image in the destination repository
 docker buildx imagetools create --tag "$DEST_REPO" "$SOURCE_REPO"

Copy a Multi-Platform Image from One Repository to Another

 #!/bin/bash

 # Set source and destination repositories
 SOURCE_REPO="source/repository"
 DEST_REPO="destination/repository"

 # Get all tags from the source repository (adjust the tag fetch mechanism if not using Docker Hub)
 tags=$(curl -s "https://registry.hub.docker.com/v2/repositories/${SOURCE_REPO}/tags" | jq -r '.results[].name')

 # Loop through each tag and copy the multi-platform image
 for tag in $tags; do
   # Create a new multi-platform image with the source image
   docker buildx imagetools create --tag "${DEST_REPO}:${tag}" "${SOURCE_REPO}:${tag}"
 done

Copy all image tags from one repository to another

 #!/bin/bash

 # Set source and destination repositories
 SOURCE_REPO="source/repository"
 DEST_REPO="destination/repository"

 # Fetch all tags from the source repository
 tags=$(curl -s "https://registry.hub.docker.com/v2/repositories/${SOURCE_REPO}/tags" | jq -r '.results[].name')

 # Loop through each tag
 for tag in $tags; do
   # Pull the image with the current tag
   docker pull "${SOURCE_REPO}:${tag}"

   # Tag the image for the destination repository
   docker tag "${SOURCE_REPO}:${tag}" "${DEST_REPO}:${tag}"

   # Push the image to the destination repository
   docker push "${DEST_REPO}:${tag}"

   # Optionally, remove the images from the local system
   docker rmi "${SOURCE_REPO}:${tag}" "${DEST_REPO}:${tag}"
 done