Kubespray: Create kubeadm token for joining nodes with 24h expiration (default)

[de1m]

Environment:

• Cloud provider or hardware configuration:
  bare metal
• OS (printf "$(uname -srm)\n$(cat /etc/os-release)\n"):

Linux 4.15.0-43-generic x86_64

NAME="Ubuntu"
VERSION="16.04.5 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.5 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

• Version of Ansible (ansible --version):

root@heku1 ~/kubespray# ansible --version
ansible 2.7.5
  config file = /root/kubespray/ansible.cfg
  configured module search path = [u'/root/kubespray/library']
  ansible python module location = /usr/lib/python2.7/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.12 (default, Nov 12 2018, 14:36:49) [GCC 5.4.0 20160609]

Kubespray version (commit) (git rev-parse --short HEAD):
7c620ad

Network plugin used:
calico

Copy of your inventory file:

root@heku1 ~/kubespray# cat inventory/myCluster/inventory.ip
[all:vars]

[kube-master]
heku1 ansible_host=94.20.20.247 ansible_ssh_user=root ansible_ssh_pass=GJksmlkjsflkj0923kAL ansible_connection=ssh ansible_port=122
heku2 ansible_host=94.20.20.248 ansible_ssh_user=root ansible_ssh_pass=AkfmLkdfj20934LAkmf ansible_connection=ssh ansible_port=122
heku3 ansible_host=94.20.20.249 ansible_ssh_user=root ansible_ssh_pass=Lkmflj23lAkmlal1masd ansible_connection=ssh ansible_port=122

[etcd]
heku1 ansible_host=94.20.20.247 ansible_ssh_user=root ansible_ssh_pass=GJksmlkjsflkj0923kAL ansible_connection=ssh ansible_port=122
heku2 ansible_host=94.20.20.248 ansible_ssh_user=root ansible_ssh_pass=AkfmLkdfj20934LAkmf ansible_connection=ssh ansible_port=122
heku3 ansible_host=94.20.20.249 ansible_ssh_user=root ansible_ssh_pass=Lkmflj23lAkmlal1masdKALf93 ansible_connection=ssh ansible_port=122

[kube-node]
heku1 ansible_host=94.20.20.247 ansible_ssh_user=root ansible_ssh_pass=GJksmlkjsflkj0923kAL ansible_connection=ssh ansible_port=122
heku2 ansible_host=94.20.20.248 ansible_ssh_user=root ansible_ssh_pass=AkfmLkdfj20934LAkmf ansible_connection=ssh ansible_port=122
heku3 ansible_host=94.20.20.249 ansible_ssh_user=root ansible_ssh_pass=Lkmflj23lAkmlal1masd ansible_connection=ssh ansible_port=122
heku4 ansible_host=144.112.133.131 ansible_ssh_user=root ansible_ssh_pass=Llmflakd4mlKAmfasdkf ansible_connection=ssh ansible_port=122

[k8s-cluster:children]
kube-node
kube-master

Command used to invoke ansible:
ansible-playbook cluster.yml -i inventory/myCluster/inventory.ip --become --become-user=root -vvv --limit "heku4"

Output of ansible run:

TASK [kubernetes/kubeadm : Create kubeadm token for joining nodes with 24h expiration (default)] ***************************************************************************************************
task path: /root/kubespray/roles/kubernetes/kubeadm/tasks/main.yml:24
Friday 11 January 2019  22:40:41 +0100 (0:00:00.198)       0:00:53.877 ********
Using module file /usr/lib/python2.7/dist-packages/ansible/modules/commands/command.py
<94.20.20.247> ESTABLISH SSH CONNECTION FOR USER: root
<94.20.20.247> SSH: EXEC sshpass -d6 ssh -o ControlMaster=auto -o ControlPersist=30m -o ConnectionAttempts=100 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o Port=122 -o User=root -o ConnectTimeout=10 -o ControlPath=/root/.ansible/cp/45d18b338c 94.20.20.247 '/bin/sh -c '"'"'/usr/bin/python && sleep 0'"'"''
<94.20.20.247> (1, '\n{"exception": "WARNING: The below traceback may *not* be related to the actual failure.\\n  File \\"/tmp/ansible_command_payload_ilkhck/ansible_command_payload.zip/ansible/module_utils/basic.py\\", line 2848, in run_command\\n    cmd = subprocess.Popen(args, **kwargs)\\n  File \\"/usr/lib/python2.7/subprocess.py\\", line 711, in __init__\\n    errread, errwrite)\\n  File \\"/usr/lib/python2.7/subprocess.py\\", line 1343, in _execute_child\\n    raise child_exception\\n", "cmd": "/usr/local/bin/kubeadm token create", "failed": true, "rc": 2, "invocation": {"module_args": {"warn": true, "executable": null, "_uses_shell": false, "_raw_params": "/usr/local/bin/kubeadm token create", "removes": null, "argv": null, "creates": null, "chdir": null, "stdin": null}}, "msg": "[Errno 2] No such file or directory"}\n', '')
The full traceback is:
WARNING: The below traceback may *not* be related to the actual failure.
  File "/tmp/ansible_command_payload_ilkhck/ansible_command_payload.zip/ansible/module_utils/basic.py", line 2848, in run_command
    cmd = subprocess.Popen(args, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
    raise child_exception

fatal: [heku4 -> 94.20.20.247]: FAILED! => {
    "changed": false,
    "cmd": "/usr/local/bin/kubeadm token create",
    "invocation": {
        "module_args": {
            "_raw_params": "/usr/local/bin/kubeadm token create",
            "_uses_shell": false,
            "argv": null,
            "chdir": null,
            "creates": null,
            "executable": null,
            "removes": null,
            "stdin": null,
            "warn": true
        }
    },
    "msg": "[Errno 2] No such file or directory",
    "rc": 2
}

NO MORE HOSTS LEFT *********************************************************************************************************************************************************************************
        to retry, use: --limit @/root/kubespray/cluster.retry

PLAY RECAP *****************************************************************************************************************************************************************************************
heku4                      : ok=223  changed=5    unreachable=0    failed=1

[beinnova]

I don't if this could help you but I added the real path to the ansible task on file role/kubernetes/kubeadm/tasks/main.yml

- name: Create kubeadm token for joining nodes with 24h expiration (default) command: "/usr/bin/kubeadm token create" run_once: true register: temp_token delegate_to: "{{ groups['kube-master'][0] }}"

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[k8s-ci-robot]

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[itsecforu]

@de1m
Did u solve it? If yes , plz tell how to!