Let’s try this out now. The output below will be a confirmation that all went perfectly well. Now, we are writing a playbook that will perform some initial configurations like it creates user, install some packages, and perform some configurations on centos76-servers group. You can follow the tutorial How To Use SSH Keys with DigitalOcean Droplets to set up SSH keys on each host if you haven’t already. python-babel.noarch 0:0.9.6-8.el7 We'd like to help. ---> Package python-httplib2.noarch 0:0.9.2-1.el7 will be installed TASK [Gathering Facts] ********************************************************* changed: [lighttpd-01.example.com] This Article Provides: Environment Specification: We are using three CentOS 7 virtual machines with following specifications. Verifying : python-passlib-1.6.5-2.el7.noarch 10/23 Can someone help me with a playbook to install all the features using the existing code which does the same. (7/23): python-idna-2.4-1.el7.noarch.rpm | 94 kB 00:00 Installing : python-paramiko-2.1.1-9.el7.noarch 20/23 python-paramiko noarch 2.1.1-9.el7 updates 269 k python-markupsafe x86_64 0.11-10.el7 base 25 k And because of this agent-less architecture, installation and configuration of Ansible is very easy and straight-forward. Verify SSH authentication by connecting to each server. [root@linuxnix ~]# ansible-playbook install_docker.yml [WARNING]: provided hosts list is empty, only localhost is available. Verifying : python-cffi-1.6.0-5.el7.x86_64 14/23 Starting from Ansible 2.5, the recommended way to use loops in your playbook is by using the loop keyword, instead of the with_items keyword. changed: [lighttpd-01.example.com] Installing : python-httplib2-0.9.2-1.el7.noarch 4/23 (2/23): python-backports-ssl_match_hostname-3.5.0.1-1.el7. mariadb-01.example.com Here, we can create as many groups as we like, according to our requirement. --> Processing Dependency: python-paramiko for package: ansible-2.4.2.0-2.el7.noarch sshpass x86_64 1.06-2.el7 extras 21 k ---> Package python-six.noarch 0:1.9.0-2.el7 will be installed [root@ansible-01 ~]# ansible-playbook centos76_servers_initial_conf.yaml Execute this playbook using ansible-playbook command. 192.168.116.203 | SUCCESS | rc=0 >> But this does not help me when running on remote servers. backup: yes Install Ansible on your Linux system using the commands shared below. (1/23): PyYAML-3.10-11.el7.x86_64.rpm | 153 kB 00:00 The authenticity of host 'lighttpd-01 (192.168.116.202)' can't be established. roles .oo.. | Individual hosts can be configured by creating files under a directory at /etc/ansible/host_vars. TASK [Restart Lighttpd service] ************************************************ Ansible Control Node: Hostname - ansible-01.example.com TASK [Installing EPEL yum Repository] ****************************************** On GitHub there is a ready-made Ansible playbook for installing NVM. o. . --> Finished Dependency Resolution | ---> Package ansible.noarch 0:2.4.2.0-2.el7 will be installed ok: [mariadb-01.example.com] We use Ansible to deploy Docker containers on our systems and the infrastructures of our customers. If you want to write more advance Ansible playbooks, then you should refer to Ansible Documentation or get a copy of Ansible Quick Start Guide: Control and monitor infrastructures of any size, physical or virtual by Packt Publishing. Verifying : python-setuptools-0.9.8-7.el7.noarch 4/23 Verifying : python2-jmespath-0.9.0-3.el7.noarch 2/23 CentOS Linux release 7.6.1810 (Core). Hi@Shashi, I think for MongoDB you need to add an extra repo in your system. ECDSA key fingerprint is SHA256:kzyCimDDwGPsfsuGXxdrcBqlxVQlU8FZTsYrwbPzZHM. The all portion means “all hosts.” You could just as easily specify a group: You can specify multiple hosts by separating them with colons: The shell module lets us send a terminal command to the remote host and retrieve the results. These scripts are called playbooks. ---> Package python-ply.noarch 0:3.4-11.el7 will be installed state: restarted This works pretty well if your system is configured properly. name: firewalld python-jinja2.noarch 0:2.7.2-3.el7_6 replace: We need the EPEL repository for this installation. Ansible Playbook for Installing Jenkins on Centos 7. Connection to lighttpd-01 closed. One major shift is the inclusion of Ansible by Red Hat in Industry’s most reputable certification i.e. The main functionality that differs Ansible from other configuration management software is it's agent-less architecture. lighttpd-01.example.com | SUCCESS => { Now ping a group of servers using ansible command. Here’s what the output might look like: By now, you should have your Ansible server configured to communicate with the servers that you would like to control. Ansible is an open-source software provisioning, configuration management, and application-deployment tool. In our previous article, we discussed how to install Jenkins on CentOS 7.. Having the ability to install Jenkins from a single command is a wonderous thing. [root@lighttpd-01 ~]# exit roles: - role: ansiblebit.oracle-java. python2-jmespath.noarch 0:0.9.0-3.el7 user: root For instance, to find out the memory usage on our host1 machine, we could use: As you can see, you pass arguments into a script by using the -a switch. [root@ansible-01 ~]# ansible -m command -a 'cat /etc/redhat-release' 'centos76-servers' Loaded plugins: fastestmirror We have successfully installed Ansible on CentOS 7 and added two Linux servers in Ansible Inventory. ---. Connection to mariadb-01 closed. I will be using a Centos 7 virtual machine to run Ansible. -------------------------------------------------------------------------------- Installing : python-passlib-1.6.5-2.el7.noarch 12/23 One CentOS 7 server. Deployment environment must have Ansible 2.4.0+ 2. --> Processing Dependency: python-backports for package: python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch git clone https://github.com/ansible/awx.git. Before installing ansible master, the pre-requisite packages should be installed. Modules can be written in any language and communicate in standard JSON. ================================================================================ --> Processing Dependency: python-passlib for package: ansible-2.4.2.0-2.el7.noarch service: http As compare to Puppet and Chef; Ansible is a new candidate in the domain of configuration management. "ping": "pong" TASK [Create Index.html File.] Size ---> Package python-babel.noarch 0:0.9.6-8.el7 will be installed Installing : python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch 9/23 To install AWX run the Ansible command: [[email protected] installer]# ansible-playbook -i inventory install.yml. sshpass.x86_64 0:1.06-2.el7 E| We have successfully write and executed two playbooks. "changed": false, - hosts: jenkins. Let’s set this up so that we can refer to these individually as host1, host2, and host3, or as a group as servers. This page describes how to install Ansible on different platforms. firewalld: TASK [Installing Common Packages] ********************************************** To execute the playbook, type ansible-playbook followed by the playbook name as shown below. ok: [lighttpd-01.example.com] In this article, we are installing Ansible on CentOS 7 and then write and execute Ansible playbooks to configure our Linux servers using Ansible. git clone git://github.com/ansible/ansible.git cd ansible Select desired version: git checkout stable-2.3 Now check that Ansible is installed with the following command: ansible --version Congratulation’s! Ansible can interact with clients through either command line tools or through its configuration scripts called Playbooks. Confirm git version. I manage the Write for DOnations program, write and edit community articles, and make things on the Internet. +----[SHA256]-----+. Update your CentOS 7 system and add EPEL repository. changed: [lighttpd-01.example.com] python version = 2.7.5 (default, Oct 30 2018, 23:45:53) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]. Therefore, we will write playbooks (YAML scripts) to perform consistent configurations on our nodes. lighttpd-01.example.com : ok=8 changed=3 unreachable=0 failed=0. --> Running transaction check PLAY [centos76-servers] ******************************************************** You get paid; we donate to tech nonprofits. Working on improving health and education, reducing inequality, and spurring economic growth? - name: Restart Lighttpd service http://ipaddress:80/ Similarly, we can execute any command using following syntax. password: "{{ '123' | password_hash('sha512') }}". I’ve used a minimal Centos build – before installing Ansible it will be necessary to install some additional software that Ansible depends on. myhomepage: '

Apache installed using Ansible

' Supporting each other to make an impact. python-backports.x86_64 0:1.0-8.el7 ECDSA key fingerprint is SHA256:kzyCimDDwGPsfsuGXxdrcBqlxVQlU8FZTsYrwbPzZHM. Running transaction python-virtualenv: need it to wrap ansible … To begin exploring Ansible as a means of managing our various servers, we need to install the Ansible software on at least one machine. You can verify that Ansible can communicate with each host you know how to use the ansible command to execute simple tasks remotely. ---> Package python-backports.x86_64 0:1.0-8.el7 will be installed Prerequisites. root@mariadb-01's password: Just write a role, like this: - name: Install git apt: name: git state: present update_cache: yes How to Install latest version of Git ( Git 2.x ) on CentOS 7. To run Let’s Kube you need to have 3 virtual machines with CentOS 7 and a machine with Git installed. logout The syntax we are going to use though looks something like this: The group_name is an organizational tag that lets you refer to any servers listed under it with one word. +---[RSA 2048]----+ Verifying : python2-pyasn1-0.1.9-7.el7.noarch 21/23 The key fingerprint is: (8/23): python-ipaddress-1.0.16-2.el7.noarch.rpm | 34 kB 00:00 - name: Installing Common Packages Ansible is an IT automation tool intended to facilitate the management of remote servers. and check to make sure that only the key(s) you wanted were added. Otherwise, you have to add the name resolution entries in Local DNS Resolver (/etc/hosts) file. Configure AWX. But, it violates the concept of configuration management. RHCE (Red Hat Certified Engineer) specific to Red Hat Enterprise Linux 8. user: It should be one playbook Installing : python-jinja2-2.7.2-3.el7_6.noarch 17/23 Are you sure you want to continue connecting (yes/no)? Installing git using ansible is pretty simple. Installing : PyYAML-3.10-11.el7.x86_64 7/23 Imagine you have three servers you want to control with Ansible. [root@ansible-01 ~]# ssh-copy-id root@mariadb-01 Connect with ansible-01.example.com using ssh as root user. [root@ansible-01 ~]# cat >> /etc/hosts << EOF Installing Ansible on CentOS 7. python-ipaddress.noarch 0:1.0.16-2.el7 [root@ansible-01 ~]# ssh-copy-id root@lighttpd-01 Secondly, I have thought of shifting from digitalocean to linode. Let’s get started. /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys In this article, we are installing Ansible on CentOS 7 and then write and execute Ansible playbooks to configure our Linux servers using Ansible. action: yum name=wget,bzip2 state=installed name: "ahmer" enabled: yes python-enum34 noarch 1.0.4-1.el7 base 52 k mariadb-01.example.com : ok=3 changed=2 unreachable=0 failed=0. python-markupsafe.x86_64 0:0.11-10.el7 --> Processing Dependency: python-cffi >= 1.4.1 for package: python2-cryptography-1.7.2-2.el7.x86_64 Below are the steps you’ll use to install Ansible Tower on a CentOS 7 server. PLAY [lighttpd-webservers] ***************************************************** ok: [lighttpd-01.example.com]

Apache installed using Ansible

. It is used to manage many servers from a central computer. Enter same passphrase again: Verifying : python-six-1.9.0-2.el7.noarch 6/23 | 13 kB 00:00 CentOS 7 3. TASK [Installing Lighttpd Server] ********************************************** I assume you have a CentOS 7+, Ubuntu 16.04+ system with Systemd service manager. (18/23): python2-pyasn1-0.1.9-7.el7.noarch.rpm | 100 kB 00:00 (4/23): python-backports-1.0-8.el7.x86_64.rpm | 5.8 kB 00:01 Complete! ---> Package python-enum34.noarch 0:1.0.4-1.el7 will be installed While Ansible certainly has the ability to handle password-based SSH authentication, SSH keys help keep things simple. I have written a playbook which calls the shell script and get this done. backup: yes