THE LINUX STUFF

1
=======
Use the ping module to ping all the nodes in your inventory:-

[sai@san-master-anisble ~]$cat /etc/ansible/hosts
192.161.1.10

[sai@san-master-anisble ~]$ ansible all -m ping -u root -k
SSH password:
192.161.1.10| SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}

2.
===
[root@san-master-anisble ~]# ansible webservers -m shell -a "/sbin/reboot" -u root -k
SSH password:
192.161.1.11 | UNREACHABLE! => {
"changed": false,
"msg": "Failed to connect to the host via ssh: Shared connection to 10.219.39.151 closed.",
"unreachable": true
}

3.
=============from Control server to Traget Server=============
[root@san-master-anisble opt]# ansible webservers -m copy -a "src=/opt/test2.txt dest=/tmp/test2.txt" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"checksum": "cdcdb882c45c507f08092f6247ca0c25b13e4ee6",
"dest": "/tmp/test2.txt",
"gid": 0,
"group": "root",
"md5sum": "fe42c7a375851a6e6ab6efd67b8895f8",
"mode": "0644",
"owner": "root",
"secontext": "unconfined_u:object_r:admin_home_t:s0",
"size": 14,
"src": "/root/.ansible/tmp/ansible-tmp-1580943557.82-148407876984882/source",
"state": "file",
"uid": 0
}
[root@san-master-anisble opt]#

4.
================================Ctrl:-managed server to managed server================
[root@san-master-anisble ~]# ansible webservers -m copy -a "src=/opt/test1.txt dest=/tmp/test1.txt remote_src=TRUE" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"checksum": "dfd5f9682ccd17adb12394fd1e01ed677e6bf5f2",
"dest": "/tmp/test1.txt",
"gid": 0,
"group": "root",
"md5sum": "de556121cc4cbc5b33dde4ec60ee507f",
"mode": "0644",
"owner": "root",
"secontext": "unconfined_u:object_r:user_tmp_t:s0",
"size": 25,
"src": "/opt/test1.txt",
"state": "file",
"uid": 0
}

5.
==============
[root@san-master-anisble opt]# ansible webservers -m file -a "dest=/opt/test1.txt mode=644 remote_src=TRUE" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"gid": 0,
"group": "root",
"mode": "0644",
"owner": "root",
"path": "/opt/test1.txt",
"secontext": "unconfined_u:object_r:usr_t:s0",
"size": 25,
"state": "file",
"uid": 0
}
[root@san-master-anisble opt]#

6.
==================================

[root@san-master-anisble opt]# ansible local -m file -a "dest=/opt/test2.txt mode=755" -u root -k
SSH password:
192.161.1.10 | FAILED! => {
"msg": "Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this. Please add this host's fingerprint to your known_hosts file to manage this host."
}

7.
-----
[root@san-master-anisble opt]# ansible local -m file -a "dest=/opt/test2.txt mode=755" -u root -k
SSH password:
192.161.1.10 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"gid": 0,
"group": "root",
"mode": "0755",
"owner": "root",
"path": "/opt/test2.txt",
"secontext": "unconfined_u:object_r:usr_t:s0",
"size": 14,
"state": "file",
"uid": 0
}
[root@san-master-anisble opt]# ls -ltrh

8.
=========how to delete files on control server ==
[root@san-master-anisble opt]# ansible local -m file -a "dest=/opt/test2.txt state=absent" -u root -k
SSH password:
192.161.1.10 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"path": "/opt/test2.txt",
"state": "absent"
}
[root@san-master-anisble opt]#

9.
============how to delete files on managed server
[root@san-master-anisble opt]# ansible webservers -m file -a "dest=/opt/test1.txt state=absent remote_src=TRUE" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"path": "/opt/test1.txt",
"state": "absent"
}

10.
[root@san-master-anisble opt]# ansible webservers -m file -a "path=/opt/a state=absent remote_src=TRUE" -u root -k
SSH password:
192.161.1.11| CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"path": "/opt/a",
"state": "absent"
}
[root@san-master-anisble opt]#

11.
========managed servers file permission/ownership change==========
[root@san-master-anisble tmp]# ansible webservers -m file -a "dest=/opt/yum.log mode=755 owner=noc group=noc remote_src=TRUE" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"gid": 1000,
"group": "noc",
"mode": "0755",
"owner": "noc",
"path": "/opt/yum.log",
"secontext": "system_u:object_r:usr_t:s0",
"size": 0,
"state": "file",
"uid": 1000
}
[root@san-master-anisble tmp]#

12.
=========================Dir creation on managed server=========
[root@san-master-anisble tmp]# ansible webservers -m file -a "dest=/opt/sankar mode=755 owner=noc group=noc state=directory remote_src=TRUE" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"gid": 1000,
"group": "noc",
"mode": "0755",
"owner": "noc",
"path": "/opt/sankar",
"secontext": "unconfined_u:object_r:usr_t:s0",
"size": 6,
"state": "directory",
"uid": 1000
}
[root@san-master-anisble tmp]#

13.
=========managing packages in managed servers===
[root@san-master-anisble tmp]# ansible webservers -m yum -a "name=http* state=present" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"changes": {
"installed": [
"http*"
]
},
"msg": "",
"rc": 0,
"results": [
"Loaded plugins: fastestmirror\nLoading mirror speeds from cached hostfile\n * base: centos.excellmedia.net\n *
....
....
....

14.
======== latest version update ====
[root@san-master-anisble tmp]# ansible webservers -m yum -a "name=http* state=latest" -u root -k
SSH password:
192.161.1.11 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"changes": {
"installed": [],
"updated": []
},
"msg": "",
"rc": 0,
"results": [
"All packages providing http* are up to date",
""
]
}
[root@san-master-anisble tmp]#

14.
=========service madule on managed server(start http service start)
[root@san-master-anisble tmp]# ansible webservers -m service -a "name=httpd state=started" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"name": "httpd",
"state": "started",
.....
.....

16.
---- stopped service on managed server ===

[root@san-master-anisble tmp]# ansible webservers -m service -a "name=httpd state=stopped" -u root -k
SSH password:
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"name": "httpd",
"state": "stopped",
.....
.....

17.
============== Gathering facts(discoverd variables about a system =========
[root@san-master-anisble tmp]# ansible all -m setup -u root -k
SSH password:
192.161.1.11 | SUCCESS => {
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"10.219.39.151"
],
"ansible_all_ipv6_addresses": [
"fe80::dbdb:a08a:cf20:ddb2"
],
"ansible_apparmor": {
"status": "disabled"
},
"ansible_architecture": "x86_64",
"ansible_bios_date": "12/01/2006",
"ansible_bios_version": "VirtualBox",
"ansible_cmdline": {
"BOOT_IMAGE": "/vmlinuz-3.10.0-1062.9.1.el7.x86_64",
"LANG": "en_US.UTF-8",
"crashkernel": "auto",
"quiet": true,
"rd.lvm.lv": "cl/swap",
"rhgb": true,
"ro": true,
"root": "/dev/mapper/cl-root"
},
"ansible_date_time": {
....
....
....

18.
===== user creation ======
[root@san-master-anisble ~]# ansible all -m user -a "name=sai1 password=sai@123" -u root -k
SSH password:
[WARNING]: The input password appears not to have been hashed. The 'password' argument must be encrypted for this module to work properly.
192.161.1.11 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"comment": "",
"create_home": true,
"group": 1001,
"home": "/home/sai1",
"name": "sai1",
"password": "NOT_LOGGING_PASSWORD",
"shell": "/bin/bash",
"state": "present",
"system": false,
"uid": 1001
}

19.
------------------------------------------------------------------------
[root@san-master-anisble ~]# ansible localhost -m ping -e 'ansible_python_interpreter="/usr/bin/env python"'
localhost | SUCCESS => {
"changed": false,
"ping": "pong"
}
[root@san-master-anisble ~]#

20.
--
[root@san-master-anisble ~]# ansible --version
ansible 2.9.2
config file = /etc/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible
python version = 2.7.5 (default, Aug 7 2019, 00:51:29) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
[root@san-master-anisble ~]#

21.
---
[root@san-master-anisble ~]# ansible-config --version
ansible-config 2.9.2
config file = /etc/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible-config
python version = 2.7.5 (default, Aug 7 2019, 00:51:29) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
[root@san-master-anisble ~]#

THE LINUX STUFF

Thursday, 13 February 2020

Ansible AD HOC commands examples

Tuesday, 4 February 2020

First Ansible:-Use the ping module to ping all the nodes in your inventory