support creating k8s cluster using k3s

[go-zen-chu]

Why

• Supporting k8s build by kubeadm is tough work because there are many steps and dependencies
• We want to support k8s build by k3s

What

• Create k3s-control-plane, k3s-worker tasks to create k8s cluster by k3s

QA, Evidence

build control plane

$ ansible-playbook -i hosts.yml k3s-control-plane.yml                                                                                                                                                                      (git)-[create-by-k3s] 
SSH password: 
BECOME password[defaults to SSH password]: 

PLAY [k8s_control_planes] **************************************************************************************************************************************************************************************************************************************************************************************************************

TASK [Gathering Facts] *****************************************************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_control_plane1]

TASK [k3s-control-plane : Check k3s is installed] **************************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_control_plane1]

TASK [k3s-control-plane : Install k3s if not installed] ********************************************************************************************************************************************************************************************************************************************************************************
skipping: [machine_control_plane1]

TASK [k3s-control-plane : Make sure k3s run as systemd] ********************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_control_plane1]

TASK [k3s-control-plane : Fetch latest k3s generated token for k3s-agent] **************************************************************************************************************************************************************************************************************************************************************
ok: [machine_control_plane1]

TASK [k3s-control-plane : Fetch latest k3s generated token for k3s-agent] **************************************************************************************************************************************************************************************************************************************************************
ok: [machine_control_plane1]

PLAY RECAP *****************************************************************************************************************************************************************************************************************************************************************************************************************************
machine_control_plane1     : ok=5    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0   

build worker

$ ansible-playbook -i hosts.yml k3s-worker.yml                                                                                                                                                                             (git)-[create-by-k3s] 
SSH password: 
BECOME password[defaults to SSH password]: 

PLAY [k8s_workers] *********************************************************************************************************************************************************************************************************************************************************************************************************************

TASK [Gathering Facts] *****************************************************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_worker2]
ok: [machine_worker1]

TASK [k3s-worker : Get k3s node token from local file] *********************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_worker1]
ok: [machine_worker2]

TASK [k3s-worker : Check k3s is installed] *********************************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_worker2]
ok: [machine_worker1]

TASK [k3s-worker : Install k3s if not installed] ***************************************************************************************************************************************************************************************************************************************************************************************
skipping: [machine_worker1]
skipping: [machine_worker2]

TASK [k3s-worker : Make sure k3s run as systemd] ***************************************************************************************************************************************************************************************************************************************************************************************
ok: [machine_worker2]
ok: [machine_worker1]

PLAY RECAP *****************************************************************************************************************************************************************************************************************************************************************************************************************************
machine_worker1            : ok=4    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0   
machine_worker2            : ok=4    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0