Docker Hands-on Repository ¶

• A collection of Hands-on Docker labs.
• Each lab is a standalone lab and does not require to complete the previous labs.

Pre-Requirements ¶

• Docker installed
• Dockerfile knowledge
• DockerHub account

Lab: Setup Basic Local Docker Registry ¶

• In this lab we will learn how to create a local Docker registry.
• In this lab we will learn how to push and pull images from the local registry.
• in this lab we will be using the default configuration, but of course you can change it as you wish.
• Configuration docs: https://docs.docker.com/registry/configuration

• 01. Create a basic local registry
• 02. Prepare the local images
• 02.01. Download busybox image
• 02.01. Tag the image with the local registry prefix
• 02.02. Push the image to the local registry
• 03. Test local images

01. Create a basic local registry¶

• The first step is to create a local registry.
• For this we will use the docker run command with the docker registry- https://hub.docker.com/_/registry image.

# Run the registry container
docker  run                     \
        -d                      \
        -p 5000:5000            \
        --restart always        \
        --name registry         \
        registry:latest

02. Prepare the local images¶

• We will download the images from DockerHub and push them to the local registry.

02.01. Download busybox image¶

# download busybox image from docker-hub
docker pull busybox

02.01. Tag the image with the local registry prefix¶

# Tag the busybox image with the local registry prefix
docker tag busybox localhost:5000/busybox

02.02. Push the image to the local registry¶

# Once we have the appropriate tag, we can push the image to the local registry
docker push localhost:5000/busybox

03. Test local images¶

# List all local repositories
curl -X GET http://localhost:5000/v2/_catalog

# List all tags for a repository
curl -X GET https://myregistry:5000/v2/ubuntu/tags/list