Ansible Installation and use

Any server can be the master terminal
1, install Epel Source:# RPM-IUVH http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-8.noarch.rpm
2. Install the package:# yum Install Ansible
3, set up SSH password-free login:# # Generate public/private key # Ssh-keygen-t Rsa-p ' # # Write a trusted file (distribute/root/.ssh/id_rsa_storm1.pub to other servers and execute the following on all servers): # CAT/ROOT/.SSH/ID_ Rsa_storm1.pub >>/root/.ssh/authorized_keys # chmod 600/root/.ssh/authorized_keys
4, Configuration ansible:# vim/etc/ansible/ansible.cfg private_key_file =/root/.ssh/id_rsa_storm1 #指定密钥位置 # vim/etc/ansible/hosts [storm_clust ER] #指定组名
10.223.55.100 10.223.55.101 linuxtoy.org #指定执行任务的主机, can be IP, hostname, support regular expression
For example: [1:3].linuxtoy.org # is equivalent to 1.linuxtoy.org, 2.linuxtoy.org, 3.linuxtoy.org [A:c].linuxtoy.org # equivalent to a.linuxtoy.org, b.linuxtoy.org, c.linuxtoy.org
5, command use:# ansible-i hosts all-m ping-u www The role of this command option is:
-I: Specify the inventory file, using the hosts in the current directory
-All: For all hosts defined by the hosts, you can also specify the group name or mode
-M: Specify the module used, we use the Ansible built-in ping module to check whether the remote machine can be managed properly
-U: Specify the user of the remote machine
If you return the following result: linuxtoy.org | Success >> {"Changed": false, "ping": "Pong"} means everything is OK.
Let's look at the uptime of the remote machine: # ansible vps-a ' uptime ' which will output: linuxtoy.org | Success | Rc=0 >> 11:23:16 up 177 days, 21:19, 0 users, load average:0.55, 0.45, 0.39 here we omit the-m,ansible default use command module; Specifies the parameters of the module, which is the Execute uptime command.
Execute installation package: ansible all-m raw-a ' yum-y install Python-simplejson '
Simple Ansible Playbook Example: Create user toy: # vim user.yml-name:create user hosts:host user:root Gather_facts:false v ARS:-User: "Toy" tasks:-name:create {{User}} user:name= "{{user}}" # Ansible-playbook USER.YML
※ Basic command: # # to see some basic information about a remote host # ansible STORM_CLUSTER-M setup
# # used to test the running status of the remote host # ansible Storm_cluster-m Ping
# # Remote File Information View # ansible storm_cluster-m command-a "ls–al/tmp/resolv.conf"
# # Copy the local file "/etc/ansible/ansible.cfg" to the remote server # ansible storm_cluster-m copy-a "Src=/etc/ansible/ansible.cfg dest=/tmp/ Ansible.cfg owner=root group=root mode=0644 "
# # EXECUTE command on remote host # ansible storm_cluster-m command-a "uptime"
# # Remote Execute Shell Script # ansible storm_cluster-m shell-a "/tmp/rocketzhang_test.sh"
More modules can be consulted: #ansible-doc–l