k3d-example

command

 k3d cluster create --config ./config.yaml

command to update the host lookup

kubectl -n cattle-system patch  deployments cattle-cluster-agent --patch '{
    "spec": {
        "template": {
            "spec": {
                "hostAliases": [
                    {
                      "hostnames":
                      [
                        "{{ rancher_server_hostname }}"
                      ],
                      "ip": "{{ rancher_server_ip }}"
                    }
                ]
            }
        }
    }
}'

kubectl -n cattle-system patch  daemonsets cattle-node-agent --patch '{
 "spec": {
     "template": {
         "spec": {
             "hostAliases": [
                 {
                    "hostnames":
                      [
                        "{{ rancher_server_hostname }}"
                      ],
                    "ip": "{{ rancher_server_ip }}"
                 }
             ]
         }
     }
 }
}'

config.yaml

# k3d configuration file, saved as e.g. /home/me/myk3dcluster.yaml
apiVersion: k3d.io/v1alpha2 # 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
name: prod # name that you want to give to your cluster (will still be prefixed with `k3d-`)
# servers: 1 # same as `--servers 1`
# agents: 3 # same as `--agents 3`
ports:
  - port: 31443:443
    nodeFilters:
      - loadbalancer
  - port: 31080:8080
    nodeFilters:
      - loadbalancer
  - port: 41002:40002
    nodeFilters:
      - loadbalancer
  - port: 41003:40003
    nodeFilters:
      - loadbalancer
  - port: 41004:40004
    nodeFilters:
      - loadbalancer
  - port: 41005:40005
    nodeFilters:
      - loadbalancer