Ansible is an open-source software platform for configuring and managing computers. It combines multi-node software deployment, ad hoc task execution, and configuration management. It manages nodes over SSH or PowerShell and requires Python (2.4 or later) to be installed on them. It controls other by playbooks, yml files.
[root@centos65 ansible]# ssh-keygen -t rsa -C “centos65”
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory ‘/root/.ssh’.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
d4:65:82:7d:d4:00:14:f7:f0:e5:57:00:76:6a:22:1a centos65
The key’s randomart image is:
+–[ RSA 2048]—-+
| +=+X+o.o|
| …*.*.o.|
| E o o.o o o|
| + . o .|
| . S |
| |
| |
| |
| |
+—————–+
[root@centos65 ansible]# ssh-copy-id root@10.254.80.129
The authenticity of host ‘10.254.80.129 (10.254.80.129)’ can’t be established.
RSA key fingerprint is a7:de:6e:ac:23:e5:8c:e4:5f:5e:c1:34:41:ef:a0:f9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ‘10.254.80.129’ (RSA) to the list of known hosts.
root@10.254.80.129’s password:
Now try logging into the machine, with “ssh ‘root@10.254.80.129′”, and check in:
.ssh/authorized_keys
[root@centos65 ansible]# ansible all -m ping
localhost | success >> {
“changed”: false,
“ping”: “pong”
}
10.254.80.129 | success >> {
“changed”: false,
“ping”: “pong”
}
[root@centos65 ansible]# ansible all -m yum -a “name=nmap state=installed”
10.254.80.129 | FAILED >> {
“failed”: true,
“msg”: “Traceback (most recent call last):\n File \”/root/.ansible/tmp/ansible-tmp-1408977584.7-190099707133788/yum\”, line 27, in <module>\n import yum\nImportError: No module named yum\n”,
“parsed”: false
}
localhost | success >> {
“changed”: true,
“msg”: “”,
“rc”: 0,
“results”: [
“Loaded plugins: fastestmirror\nLoading mirror speeds from cached hostfile\n * base: mirror.csclub.uwaterloo.ca\n * epel: less.cogeco.net\n * extras: less.cogeco.net\n * updates: less.cogeco.net\nSetting up Install Process\nResolving Dependencies\n–> Running transaction check\n—> Package nmap.x86_64 2:5.51-3.el6 will be installed\n–> Processing Dependency: libpcap.so.1()(64bit) for package: 2:nmap-5.51-3.el6.x86_64\n–> Running transaction check\n—> Package libpcap.x86_64 14:1.4.0-1.20130826git2dbcaa1.el6 will be installed\n–> Finished Dependency Resolution\n\nDependencies Resolved\n\n================================================================================\n Package Arch Version Repository\n Size\n================================================================================\nInstalling:\n nmap x86_64 2:5.51-3.el6 base 2.7 M\nInstalling for dependencies:\n libpcap x86_64 14:1.4.0-1.20130826git2dbcaa1.el6 base 130 k\n\nTransaction Summary\n================================================================================\nInstall 2 Package(s)\n\nTotal download size: 2.9 M\nInstalled size: 10 M\nDownloading Packages:\n——————————————————————————–\nTotal 10 MB/s | 2.9 MB 00:00 \nRunning rpm_check_debug\nRunning Transaction Test\nTransaction Test Succeeded\nRunning Transaction\n\r Installing : 14:libpcap-1.4.0-1.20130826git2dbcaa1.el6.x86_64 1/2 \n\r Installing : 2:nmap-5.51-3.el6.x86_64 2/2 \n\r Verifying : 14:libpcap-1.4.0-1.20130826git2dbcaa1.el6.x86_64 1/2 \n\r Verifying : 2:nmap-5.51-3.el6.x86_64 2/2 \n\nInstalled:\n nmap.x86_64 2:5.51-3.el6 \n\nDependency Installed:\n libpcap.x86_64 14:1.4.0-1.20130826git2dbcaa1.el6 \n\nComplete!\n”
]
}
[root@centos65 ansible]# ansible all -m copy -a “src=/tmp/server dest=/tmp/server”
localhost | success >> {
“changed”: false,
“dest”: “/tmp/server”,
“gid”: 0,
“group”: “root”,
“md5sum”: “d41d8cd98f00b204e9800998ecf8427e”,
“mode”: “0644”,
“owner”: “root”,
“path”: “/tmp/server”,
“secontext”: “unconfined_u:object_r:user_tmp_t:s0”,
“size”: 0,
“state”: “file”,
“uid”: 0
}
10.254.80.129 | success >> {
“changed”: true,
“dest”: “/tmp/server”,
“gid”: 0,
“group”: “root”,
“md5sum”: “d41d8cd98f00b204e9800998ecf8427e”,
“mode”: “0644”,
“owner”: “root”,
“size”: 0,
“src”: “/root/.ansible/tmp/ansible-tmp-1408978354.23-172189810831954/source”,
“state”: “file”,
“uid”: 0
}
[root@centos65 ansible]# ansible all -m shell -a “ls -l /tmp/server”
localhost | success | rc=0 >>
-rw-r–r–. 1 root root 0 Aug 25 10:52 /tmp/server
10.254.80.129 | success | rc=0 >>
-rw-r–r– 1 root root 0 Aug 25 10:52 /tmp/server
[root@centos65 ansible]# ansible all -m shell -a “hostname”
localhost | success | rc=0 >>
centos65
10.254.80.129 | success | rc=0 >>
opscoder-virtual-machine
[root@centos65 tmp]# more test.yml
—
– hosts: vpn
remote_user: test
tasks:
– name: delete /tmp/server
shell: rm -rf /tmp/server
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