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Solution

oc login -u system:admin

• name: just for testing by ayad hosts: web1 tasks:
  • name: installing httpd
    yum:
    name: httpd
    state: present
  • name: starting the services
    service:
    name: httpd
    state: started
  • name: modify the hostname
    lineinfile:
    path: /etc/hosts
    regexp: ‘^127.0.0.1’
    line: 127.0.0.1 ayad.com.cm.my
    owner: root
    group: root
    mode: 0644

kubectl get pods --all-namespaces
or 
oc get pods --all-namespaces

• hosts: webservers0
  tasks:
• name: Execute a command using the shell module
  become: true
  become_user: root
  shell: touch {{ item }}
  with_items: “{{ groups[‘webservers0’] }}”

here is the solutions

#Unfinished transaction remaining

$sudo yum install yum-utils

$yum-complete-transaction –cleanup-only

$ iptables-save > /path/to/iptables.bkp

$ systemctl restart iptables

$ iptables-restore < /path/to/iptables.bkp

If you faced the following error

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:CBrXeEtmY2R6dJNnmsiaEyJ4RvfcRE1+riCBX5/qQiA.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /root/.ssh/known_hosts:5
ECDSA host key for host1.okd-testing.com has changed and you have requested strict checking.
Host key verification failed.

here is the solutions

Run the following command on the main host

ssh-keygen -R 192.168.1.123

make sure to change the ip to hostname or ip according to the issue. because the command will remove the cache.

• name: Playbook
• hosts: webservers
• become: yes
• become_user: root
• tasks:
  • name: ensure apache is at the latest version
    yum:
    name: httpd
    state: latest
  • name: ensure apache is running
    service:
    name: httpd
    state: started

$ gitlab-ctl reconfigure
$ gitlab-ctl restart