Hi,
1/
Sounds like you use a lot the when clause to limit the impact of action
to some servers.
Why you did'nt use more the hosts clause to handle the action on
specific hosts ?
You can have more than one hosts clause in a playbook
Notice that you can reuse variable in a previous play in another play also.
2/
What do you want to achieve really ?
3/
Sounds weird to have three master and only one worker in a kubernetes
cluster... The other way around is more "common"
Regards,
JYL
Le 21/01/2021 à 07:18, liyo...@126.com a écrit :
my inventroy file is below:
[master]
172.24.64.44
172.24.64.42
172.24.64.43
[worker]
172.24.64.46
[cluster:children]
master
worker
I want to exec the playbook in [cluster:children]'s master
172.24.64.44,want to get the variables value ,then use it in other
group ,how to write the "when" ? please help me ?
my playbook is :
- name: Get master token
shell: kubeadm token list |grep forever|awk '{print $1}'
register: kubeadm_token
when: inventory_hostname == groups['cluster:children']['master']|first
- name: Get master hash
shell: "openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin
-outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^ .* //'|cut -d' ' -f2"
register: kubeadm_hash
when: xxxxxxxxxxxxxxxxxxxxxx
- name: Add master node
shell:
cmd: kubeadm join {{ groups['master'][0] }}:6443 --token {{
hostvars[groups['cluster']['master']|first]['kubeadm_token'].stdout }}
--discovery-token-ca-cert-hash sha256:{{
hostvars[groups['master']|first]['kubeadm_hash'].stdout }}
when:
- inventory_hostname in groups['worker']
I want to get the token and hash value,then use it in "worker" groups
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