Proxying Multiple Registries

[kameshsampath]

I am trying to do a offline usage of k3s using k3d, as process I am trying to setup a mirrors for common repositories that I use as part of my app/demos

Created two registries like,

k3d registry create docker-io-proxy \
    --port 0.0.0.0:5100 \
    --proxy-remote-url https://registry-1.docker.io/ \
    --proxy-username "$DOCKERHUB_USERNAME" \
    --proxy-password "$DOCKERHUB_PASSWORD" \
    --volume "<my-vol>:/var/lib/registry"
k3d registry create quay-io-proxy \
    --port 0.0.0.0:5200 \
    --proxy-remote-url https://quay.io/ \
    --proxy-username "$QUAYIO_USERNAME" \
    --proxy-password "$QUAYIO_PASSWORD" \
    --volume "<my-vol>:/var/lib/registry"

and creating the cluster like

apiVersion: k3d.io/v1alpha4
kind: Simple
metadata:
  name: dag
servers: 1
# agents: 2
image: rancher/k3s:v1.24.3-k3s1
ports:
  # Drone CI
  - port: 127.0.0.1:30980:30980
    nodeFilters:
      - loadbalancer
  # Gitea
  - port: 127.0.0.1:30950:30950
    nodeFilters:
      - loadbalancer
  # Argo CD
  - port: 127.0.0.1:30080:30080
    nodeFilters:
     - loadbalancer
registries:
  create:
      name: "k3d-myregistry.localhost"
      host: "0.0.0.0"
      hostPort: "5001"
      volumes:
        - "/Users/kameshs/MyLabs/.k3s/registry:/var/lib/registry"
  config: |
      mirrors:
        "docker.io":
           endpoint:
             - "http://k3d-docker-io-proxy:5100/"
        "quay.io":
           endpoint:
             - "http://k3d-quay-io-proxy:5200/"

I was expecting that first pull of image will cache the images from respective mirrors ?

Is my understanding is correct ? correct if not

-Kamesh