pspravin

File name: hostname.yml
location: /u02/ansible/ansible/playbooks

Content of the file:
- hosts: all
- tasks:
- command: hostname

Command:
[ansible@calaces_dev_server2 ansible]$ ansible-playbook playbooks/hostname.yml

pspravin

[opc@vm04 ansible]$ ansible -m ping all
app02 | UNREACHABLE! => {
    "changed": false,
    "msg": "Failed to connect to the host via ssh: ssh: Could not resolve hostname app02: Name or service not known\r\n",
    "unreachable": true
}
db01 | UNREACHABLE! => {
    "changed": false,
    "msg": "Failed to connect to the host via ssh: ssh: Could not resolve hostname db01: Name or service not known\r\n",
    "unreachable": true

pspravin

[opc@vm04 ansible]$ ansible-playbook loadbalancer.yml

PLAY [loadbalancer] ************************************************************

TASK [setup] *******************************************************************
ok: [129.146.34.164]

TASK [install nginx] ***********************************************************
fatal: [129.146.34.164]: FAILED! => {"changed": false, "cmd": "apt-get update", "failed": true, "msg": "[Errno 2] No such file or directory", "rc": 2}
        to retry, use: --limit @/home/opc/ansible/loadbalancer.retry

pspravin

---
- hosts: loadbalancer
  tasks:
    - name: install nginx
      apt: name=nginx state=present update_cache=yes
~
~
~
~
~

pspravin

[opc@vm04 ansible]$ ansible-playbook loadbalancer.yml

PLAY [loadbalancer] ************************************************************

TASK [setup] *******************************************************************
ok: [129.146.34.164]

TASK [install nginx] ***********************************************************
fatal: [129.146.34.164]: FAILED! => {"changed": false, "cmd": "apt-get update", "failed": true, "msg": "[Errno 2] No such file or directory", "rc": 2}
        to retry, use: --limit @/home/opc/ansible/loadbalancer.retry

pspravin

---
- hosts: loadbalancer
  become: true
  tasks:
    - name: install nginx
      apt: name=nginx state=present update_cache=yes

pspravin

[opc@lb01 skel]$ sudo yum repolist
Loaded plugins: langpacks, ulninfo
repo id                    repo name                                      status
ol7_UEKR4/x86_64           Latest Unbreakable Enterprise Kernel Release 4    324
ol7_addons/x86_64          Oracle Linux 7Server Add ons (x86_64)             222
ol7_latest/x86_64          Oracle Linux 7Server Latest (x86_64)           18,931
ol7_optional_latest/x86_64 Oracle Linux 7Server Optional Latest (x86_64)  13,141
repolist: 32,618

pspravin

[opc@vm04 ansible]$ ansible-playbook loadbalancer.yml

PLAY [loadbalancer] ************************************************************

TASK [setup] *******************************************************************
ok: [129.146.34.164]

TASK [install nginx] ***********************************************************
fatal: [129.146.34.164]: FAILED! => {"changed": false, "failed": true, "msg": "No package matching 'nginx' found available, installed or updated", "rc": 126, "results": ["No package matching 'nginx' found available, installed or updated"]}
        to retry, use: --limit @/home/opc/ansible/loadbalancer.retry

pspravin

---
- hosts: loadbalancer
  become: true
  tasks:
    - name: install nginx
      yum: name=nginx state=present

pspravin

[opc@vm04 ansible]$ ansible-playbook loadbalancer.yml

PLAY [loadbalancer] ************************************************************

TASK [setup] *******************************************************************
ok: [129.146.34.164]

TASK [install nginx] ***********************************************************
fatal: [129.146.34.164]: FAILED! => {"changed": false, "failed": true, "msg": "No package matching 'nginx' found available, installed or updated", "rc": 126, "results": ["No package matching 'nginx' found available, installed or updated"]}
        to retry, use: --limit @/home/opc/ansible/loadbalancer.retry