k3d-demo-cluster-config.yaml

apiVersion: k3d.io/v1alpha4 # this will change in the future as we make everything more stable
kind: Simple # internally, we also have a Cluster config, which is not yet available externally
metadata:
  name: demo # name that you want to give to your cluster (will still be prefixed with `k3d-`)
servers: 1 # same as `--servers 1`
ports:
  - port: 7080:8080 # same as `--port 7080:8080@loadbalancer'`
    nodeFilters:
      - loadbalancer
registries: # define how registries should be created or used
  config: | # define contents of the `registries.yaml` file (or reference a file); same as `--registry-config /path/to/config.yaml`
    mirrors:
      "docker.io":
        endpoint:
          - http://host.k3d.internal:8183
      "gcr.io":
        endpoint:
          - http://host.k3d.internal:8183
      "quay.io":
        endpoint:
          - http://host.k3d.internal:8183
      "ghcr.io":
        endpoint:
          - http://host.k3d.internal:8183
      "nexus.hosted":
        endpoint:
          - http://host.k3d.internal:8182
options:
  k3s: # options passed on to K3s itself
    extraArgs: # additional arguments passed to the `k3s server|agent` command; same as `--k3s-arg`
      - arg: --no-deploy=traefik
        nodeFilters:
          - server:*
hostAliases: # /etc/hosts style entries to be injected into /etc/hosts in the node containers and in the NodeHosts section in CoreDNS
  - ip: 0.0.0.0
    hostnames: 
      - registry-1.docker.io
      - gcr.io
      - quay.io
      - ghcr.io