Setup edge cluster local image registry for MicroK8s

Note: Skip this section if using remote image registry. Enable the container registry and configure Docker to tolerate the insecure registry.

Procedure

1. Enable the container registry:

   microk8s.enable registry
   export REGISTRY_ENDPOINT=localhost:32000
   export REGISTRY_IP_ENDPOINT=$(kubectl get service registry -n container-registry | grep registry | awk '{print $3;}'):5000
   

2. Install Docker (if not already installed, docker --version to check):

   curl -fsSL get.docker.com | sh
   

3. Install jq (if not already installed):

   apt-get -y install jq
   

4. Define this registry as insecure to Docker. Create or add to /etc/docker/daemon.json:

   echo "{
       \"insecure-registries\": [ \"$REGISTRY_ENDPOINT\", \"$REGISTRY_IP_ENDPOINT\" ]
   }" >> /etc/docker/daemon.json
   

5. Restart Docker to pick up the change:

   systemctl restart docker
   

What’s next

• Installing the agent on K3s and MicroK8s edge clusters