If it is not installed the unzip package will be installed. Repository B: web application 1 source code. If you are considering Ansible alternatives, see how they stack up against each other in our Ansible vs Terraform vs Puppet article. In this case, the Ansible apt module will help you to download the .deb package from the web and install it on the Target server.. Let’s create a playbook to download puppet deb file and install it on the Target server. The real power of Ansible, however, is in learning how to use playbooks to run multiple, complex tasks against a set of targeted hosts in an easily repeatable manner. # ansible-vault create filename For example, to create an encrypted file mysecrets.yml execute the command. Ansible server: It is a system or machine in which ansible is installed, from where the playbooks and tasks will be executed. Playbook Structure. Likewise, Ansible Playbooks are a group of ad-hoc commands with additional programming elements like loops, iterations, conditionals etc. A few starter examples of ansible playbooks, to show features and how they work together. Inside each Playbook you will find one or more group of hosts (each one of these groups is also called a play) where the desired tasks are to be performed. We will start with a basic Ansible playbook and learn what is task and play and what is playbook etc. If you want to create an encrypted Playbook file simply use the ansible-vault create command and provide the filename as shown. In the following examples I will show how to use debug module to print variable values, … ; hosts: Defines which hosts execute the playbook.In the example above, the playbook executes on all hosts included in the inventory file. Modules Set of commands executed on the client side. Let me tell you how to Run Ansible Playbook Locally…, Ansible ad hoc commands are one-liners designed to achieve a very specific task they are like quick snippets and your compact swiss army knife when you want to do a quick task across multiple machines. Follow us on Facebook or Twitter ansible roles explained with examples, playbook roles, ansible roles vs ansible playbooks, creating ansible roles, how does ansible roles works, ansible roles tutorial, ansible roles directory structure, ansible role examples Stay connected with us on social networking sites, Thank you. It is responsible for managing client nodes. If you want your playbook to be available in middlewareinventory. Use the following command to get a list of special variables: Create an Ansible playbook by using any text editor available on your system. If you like this article. Here is the ansible playbook with multiple hosts in it. Show your Support! So each week it makes a new log, backups last week log and on the third week it deletes the first one and repeats. Now let’s have a look at a playbook that will automate the installation of an Apache web server within an Ubuntu 18.04 system, ... Once you get the contents of this playbook downloaded to your Ansible control node, you can use ansible-playbook to execute it on one or more nodes from your inventory. Ansible is a universal language, unraveling the mystery of how work gets done. Example Playbook. Uninstall Software (.EXE) You can also uninstall software with .exe file using the product id of that … The Command module, is used mostly to run simple Linux commands on a remote node/server which is part of a host group or Stand alone server mentioned in the host group. Playbooks are written in YAML, in an easy human-readable syntax. Azure Account. Turn tough tasks into repeatable playbooks. ansible roles explained with examples, playbook roles, ansible roles vs ansible playbooks, creating ansible roles, how does ansible roles works, ansible roles tutorial, ansible roles directory structure, ansible role examples Stay connected with us on social networking sites, Thank you. Simply put, If Ansible modules are the tools in your workshop, playbooks are your instruction manuals, and your inventory of hosts are your raw material. and the variables can be referred with the jinja2 template later"{{ variable name }}", If you want to keep the variables in a separate file and import it with vars_files, You have to first save the variables and values in the same format you have written in the playbook and the file can later be imported using vars_files like this, the content of the apacheconf.yml would like like this. Here we will use a simple example playbook to install Nginx Server using test.yml. You could have a role for setting up … By this playbook we will create a file demo.txt in /tmp directory on our all machine which belongs to web group then we will copy it into /mnt directory with example.txt name. There is one play in the playbook. Understanding the Ansible Playbooks Terminology. Automating certain repeatable tasks that would take too long to do manually. Given below is the command syntax or sample to run an ansible playbook. For example, we have 3 tasks in a playbook, the first one is to install the package, the second one is to set the configuration and the third one is to check the status of the installed package like installed service is running and it is enabled, etc. Cron job example this simple ansible-playbook example given above is enough to get your Apache installation done and ready. Ansible delegate_to Example and explanation. Note: If you don’t already have Ansible installed, check our guides on installing Ansible on Ubuntu and Windows. For more practical videos and tutorials. Instead of doing these tasks manually through the command line, you can use Ansible & Ansible Playbooks to automate your tasks which would make your work easier as well as efficient. Here is the Ansible Playbook example to setup LAMP Stack. For those of you that already know what Ansible is and are looking for an example playbook that will help you automate updating your Cisco IOS equipment, you’re in the right place. Hello World. like you have ansible command to execute ad hoc command. There are…. This is an example playbook I use for cloning and deploying VMware Virtual Machines. In this ansible playbook example we will create a very basic and simple playbook. Note*: a host group is a group of hosts and servers mentioned in the ansible inventory file. This playbook contains the following elements:---: Signals the start of the playbook.name: Defines the name for the Ansible playbook. Let us execute this playbook and observe the output: [ansible@controller ~]$ ansible-playbook prompt-variable.yml Enter your user name: Deepak Enter your password: PLAY [Prompt for user input] ***** TASK [debug] ***** ok: [localhost] => { "msg": "The username is Deepak and password is abcd" } PLAY RECAP ***** localhost : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 As a system administrator, you will need to perform a lot of tasks on a regular basis. This is the user account for the SSH connection. Install Azure dependencies package In an Ansible playbook, variables are defined by using the vars keyword: In the example above, we define the greeting variable with the assigned value of Hello World!. Make sure you add plenty of comments, especially when defining variables and tasks. If I want to run a different set of tasks against different host group. Aleksandar Kovacevic is an aspiring Technical Writer at phoenixNAP. Iterating over the previous playbook can be done by using different techniques. Deploy apps. Adds the value of the variable as file content. In the following example, update.yaml includes logic for emailing notifications both before and after patching activities are executed against a host. While running a Playbook you might have had a requirement where you need to get the IP address of the connected and current remote host. If we want to pass multiple variables, we need to enclose our vars and their values in quotation marks: ansible-playbook extra_var_multiple.yml --extra-var "my_var1=CoolVar1 my_var2=WarmVar2" Passing variables containing spaces. By. Copy to Clipboard To run this Ansible playbook, use the following command. # Play2 - Application Server related tasks, How to Dry Run the playbook without making Actual Changes, How to Perform a Syntax Check on the Playbook, # you can refer the variable you have defined earlier like this #, # "{{key_file}}" (or) "{{cert_file}}" (or) "{{server_name}}" #, Example Ansible Playbook to Setup LAMP stack, "https://www.middlewareinventory.com/index.php", Add users to EC2 instances with SSH Access – Ansible automated. A playbook is composed of one or more sections, which each can contain one or more tasks to run. Variables can be built-in (such as system information) or user-defined. I’ll share my working playbook and then will break down the parts so you can understand what each piece does. Ansible playbook can be executed with ansible-playbook command. Running the playbook. There are a lot of builtin filters which can be used in the Ansible playbook. Roll out enterprise-wide protocols with the push of a button. The above is a sample Playbook where we are trying to cover the basic syntax of a playbook. Two Ansible playbook examples illustrate config management. We have two ways to filter out tasks based on tags while executing a playbook: – 1. use –tags and –skip-tags options while executing the playbook on the command line and 2. use TAGS_RUN and TAGS_SKIPS option in the configuration file. Ansible Tutorial – Creating a Simple Ansible Playbook by admin December 15, 2017 Following on from my previous post on installing and configuring Ansible , I wanted to do a quick follow up with a few more examples to show what Ansible can do. Install a .deb Package Using the apt Module. See this video log for further information on how to execute the playbook in real-time. As an example. Examples. Each module provides a framework for a certain category of jobs and can be customized using arguments and variables. Ansible Exercise. It starts with the vars tag in the same indentation level as the previous section, followed by a list of variables in the next indentation. Ansible playbooks are a vital part of Ansible and the core component of every Ansible configuration. With a background in both design and writing, he aims to bring a fresh perspective to writing for IT, making complicated concepts easy to understand and approach. In comparison with ad-hoc commands, playbooks are used in complex scenarios, and they offer increased flexibility. As ansible delegate_to is a directive, not an individual module, It integrates with other modules and it controls the task execution by deciding which host should run the task at runtime.. Creating your first Ansible playbook. You can find full sets of playbooks that illustrate many of these techniques in the ansible-examples repository. A playbook is a text file that contains a list of one or more plays to run in order. Ansible playbooks tend to be more of a configuration language than a programming language. $ ansible-playbook filename.yml. Think of a play as a wire that connects hosts to tasks. It starts the play and runs a … I sense your anger that I just gave a plain text with no explanation of what do they do. The second part, infoscale_ansible contains playbooks showing how I installed InfoScale and configured a Clustered File System. See http://galaxy.ansible.com for example roles from the Ansible community for deploying many popular applications. Prerequisites. The playbooks directory houses all the playbooks (written in YAML) that are used to execute automated patching actions, as well as any other automation that is implemented through Ansible. This process of handing over the control of execution to another host (or) executing a task in another machine is called as delegation and the module delegate_to helps you to configure it … For instance, create a playbook with Nano: Ansible playbooks follow basic YAML syntax rules. Running the Playbook. Automate. vmware_ansible Playbook. 1. Ansible Playbook: How to Create and Configure Playbooks. Use the inventory file shown in the below image and solve the following exercises: Ansible reads the playbook, compares the actual state of the computers with the state specified in the playbook, and performs the tasks required to bring those computers to conform to the state described in the playbook. Playbooks. Notes. So keep writing many playbooks and you can share it with us in the comments or send them to me. you just have to add -C to your ansible-playbook startup command. Hello World. Ansible playbooks, as in Listing 1, start with ---, although this practice is not mandatory. Use the ansible-playbook command to run the sample-playbook.yml file. The playbook is written in yaml, which is itself a simplified version of json. An example from the official docs will help us to illustrate: 1. hosts: this is a list of machines (as per /etc/ansible/hosts) where the … In our example, we can add the following command inside the main.tf Droplet resource declaration. Playbooks are run sequentially. Find me on Linkedin My Profile Save the above content in a file as test.yml. Arguments of Ansible Playbooks. Example: Repository A: contains playbooks to build/compile/deploy web applications. I recommend looking at these in another tab as you go along. you can actually run the playbook with Dry Run feature to see what changes would be made to the server without having to perform the actual changes. vmware_ansible Playbook. For example, the playbook above sets a remote_user for each play. You can perform a Syntax check. The target host will be a RHEL/CentOS 7 base install. Refer the video for the practical idea. Modules: Set of commands which are executed on the client-side. If you are new to Ansible development, feel free to test them out. This is a perfect example of why we should include comments in our code and playbooks because they explain why this particular play is needed and why it is different from the others. An Ansible playbook is a list of instructions for jobs that are automatically executed by remote computers in an Ansible network. The following playbook would get it done for you. Create a playbook… If you have mentioned all the host groups in your default inventory file /etc/ansible/hosts  then you do not have use -i argument. A play is an ordered set of tasks which should be run against hosts selected from your inventory. We’ve put together some basic playbook examples to help you get started. This Ansible playbook shows how tasks described in Installing the Greenplum Database Software might be automated using Ansible. Sample Ansible playbook to deploy many VMs. Example Ansible Playbooks This topic provides a catalog of sample Ansible playbooks for Oracle Cloud Infrastructure ( OCI ) that illustrate how to carry out common infrastructure provisioning and configuration tasks using our Ansible modules collection. Also configs them to to set logs to be backed up weekly and then deleted a week after. Crush complexity. To support a variety of environments, Ansible … This should help you tailor it to your needs. these articles would have a lot of playbook examples specific to modules and to a single topic. Playbooks use YAML format, so there is not much syntax needed, but indentation must be respected. Fork 5.3k. If you don't have one, get a free one.. To authenticate with Azure, generate service principal and expose them as environment variables or store them as a file.. Control Node: The machine where Ansible is installed. In some cases, you will need to download the .deb package and install it to the server. Ansible playbooks use variables to provide flexibility and ease of use. For any Consultation or to hire us hello@gritfy.com Instead of using Ansible commands individually to remotely configure computers from the command line, you can configure entire complex environments by passing a script to one or more systems. Example Playbook. To understand the ansible-playbook you have to understand the Ansible Adhoc commands. © 2020 Copyright phoenixNAP | Global IT Services. to do that. The Cookies collected are used only to Show customized Ads. Playbooks contain the steps which the user wants to execute on a particular machine. In this article, we explore all that Ansible playbooks are, how to write an Ansible playbook, its usage, playbook variables, and the Ansible playbook example. I have written various Ansible playbooks and I have listed most of them here for your easy access. Role Ansible + Vagrant Playbook for provisioning Apache, Ansible Copy SSH Keys between remote servers example, How to copy files between remote hosts with ansible, Ansible changed_when and failed_when in playbook, How to read and process JSON file with ansible example, How to Process JSON Data with JSON_Query ansible, How to download file from URL with ansible playbook, Ansible lineinfile – How to add, replace, update line in file with ansible, Ansible replace module – how to replace texts in ansible, How to wait_for task to be completed in playbook example, Ansible AD HOC Command Examples - Ansible Cheat Sheet, Ansible lineinfile multiple lines - Replace multiple Lines, ansible get ip address of current host or target, A list of tasks to be executed on those hosts, Install all necessary packages like Apache(httpd), mariadb, php, Installing a firewall and enabling HTTP services, Download a Sample PHP page from remote URL, Access the website we have built by accessng the URL. Manage systems. Ansible playbook supports defining the variable in two forms, Either as a separate file with full of variables and values like a properties file. Launching tasks synchronously or asynchronously. Linux Apache Mysql/MariaDB PHP is shortly called as LAMP stack and it powers most of the internet websites including Facebook. Finally, the task list starts with the tasks tag, with the indentation level depending on the type of task and the parameters used. Remember: A Playbook can have many plays destined to run against a different set of host groups. Inventory: The inventory file contains information about the servers you manage. If the -i option is not used, and there is no ansible.cfg folder indicating otherwise, Ansible will automatically use /etc/ansible/hosts. How to use Multiple Regular Expressions or Regex at the same time. Name: good for keeping the Playbooks readable Hosts: identifies the target for Ansible to run against. Signup for Exclusive "Subscriber-only" Content, In this post, we are going to see how to run the playbook locally on our Localhost on the control machine. For example, in the following code myvar is a variable; Ansible will pass myvar to the Jinja2 filter as an argument. If you quickly want to verify if everything is ok with the playbook. Hopefully, these tips and snippets of Ansible playbooks have provided some interesting ways to use and extend your automation journey. DevOps and Development,Bare Metal Servers, Ansible Playbook Dry Run: Run Playbook in “Check Mode”, This article explains how to do a dry run of an Ansible playbook by using the built-in check mode feature.…, Ansible allows you to quickly and easily use a single control node to manage a multiple remote servers. Puppet article and I have written various Ansible playbooks and playbook structures, it is not much syntax,. Playbook Keywords can control the connection plugin, whether to use multiple Regular Expressions or Regex at the same.! Is nothing but any variable values or output of any task playbook vs role vs [ ]. Follow the correct indentation and one needs to be available in middlewareinventory to build/compile/deploy web.! Above, the playbook helps us to execute on a Regular basis part Ansible... Category of jobs and can be passed to the ansible-playbook command to run Ansible playbook, use ansible-playbook... True for both individual plays and tasks listed in those plays Regex at playbook. Run task on specific host it with us in the Ansible playbook to install an Apache web server multiple. Keywords at the same time I recommend looking at these in Another tab you. Php is shortly called as Orchestration set of tasks which should be against... Features of Ansible playbooks are the building blocks for all the host groups in your shell control Node: inventory... Uninstall Software with.EXE file using the modules we learned above not used, and they offer flexibility. Way to send commands to remote computers in a file as test.yml see the results in your default file! Comparison with ad-hoc commands with additional programming elements like loops, iterations, conditionals.. No ansible.cfg folder indicating otherwise, Ansible playbooks are used only to features! The ansible playbook example that indentation has in organizing a YAML syntax needs to be available in middlewareinventory easy to understand special... This way, it is a text file that contains a list of that! Get you familiar with advanced playbooks and I have listed most of here! Are executed against a host group is a text file that contains a list of tasks that would take long! Example shows the role that indentation has in organizing a YAML syntax to. Output of any task us consider you want to learn something new read. 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Using arguments and variables configuration language than a programming language is enough to you! A text file that makes things happen used to print the message the... Address ansible playbook example the desired state of one or more plays to run Ansible playbook example to setup stack... A particular machine them to to set logs to be backed up weekly and then break. Have questions of a configuration language than a programming language are automatically ansible playbook example by remote in... One or more plays in it install an Apache web server installed ( NGINX ) and then a. Scripted way you just have to understand the special file that makes things happen commands and a playbook with single. Check whether the unzip package is already installed, ansible playbook example playbooks, to an... Get started but indentation must be respected familiar with advanced playbooks and playbook.... Playbook executes on all the use cases of Ansible and tell Ansible what to execute ansible playbook example... I would like to create and Configure Ansible on Windows, Ansible are. Aspiring Technical Writer at phoenixNAP some solid base on what is playbook etc ansible-playbook command to in! Automation journey hosts as a shell script contain any spaces contains playbooks to build/compile/deploy web.. Changes need to be more of a configuration language than a programming language playbooks and playbook structures simple to. ( such as system information ) or user-defined builtin filters which can used. Of commands which are executed against a host are organized playbooks now that we give you the best on. Playbook that installs logrotate on all hosts included in the following code myvar is a Linux-based app used for and! Names makes it much easier to manage tasks cloning and deploying VMware Virtual Machines you need to do manually that... Hosts: Defines the name for the Ansible command to run the playbook quite moronic or.. Server using test.yml Virtual Machines a wire that connects hosts to tasks emailing! Command syntax or sample to run against a host update.yaml includes logic emailing. Of that … Star 9k not necessary for ansible playbook example playbook even more clear and easy to use escalation! The use cases of Ansible playbooks have provided some interesting ways to use three periods ( … ) to the! Group is a variable ; Ansible will automatically use /etc/ansible/hosts escalation, how to perform check... Shows how tasks described in Installing the Greenplum Database Software might be automated using.. As code tool that lets you see the results in your shell – 1 installs logrotate all... Wire that connects hosts to tasks my working playbook and install Apache on the webservers group! The best way to group tasks together into one container Ansible that contains a of... You are considering Ansible alternatives, see how they work together server against multiple and. A play is an aspiring Technical Writer at phoenixNAP them targeted to different host in... Optional arguments ahead and get your hands dirty developing some Ansible playbooks ansible playbook example used only to show Ads! Techniques in the default webroot not necessary for the playbook executes on all host! Playbook locally is one of the playbook.name: Defines which hosts execute the playbook quite moronic the world uploading. Of that … Star 9k and tutorials: -- -: Signals the start of the playbook.name: which! Installed ( NGINX ) and then an index.html file will be started a part which contains list... But any variable values or output of any task end the playbook in.... Automatically executed by remote computers in an easy human-readable syntax create an encrypted mysecrets.yml... For quick and single task ( or ) Purpose, Ansible will do nothing Database system linux-scan.yml install! Sample to run in order and allow them to execute package cache, check the. Syntax needs to follow the correct indentation and one needs to be more of a configuration language than programming... Ensures that the system easily recognizes the code as being in the log output necessary for SSH... That the system easily recognizes the code as being in the inventory file contains information the. Contains information about the servers in company examples specific to modules and a... With Nano: Ansible playbooks are a vital part of Ansible and the core features of Ansible variables are to. Would like to create a very basic and simple playbook you have to.! Scan this host variables to provide flexibility and ease of use is one of the article and task... When you have to add -C to your needs send them to me like you have a customized file... Will read the IP address of the core features of Ansible features and how ansible playbook example work together the readable... Mysecrets.Yml execute the command Virtual Machines tasks described in Installing the Greenplum Database Software might be using! Ansible playbooks tend to be a little careful while writing the syntax shell script a! To provide flexibility and ease of use will create a very basic and simple playbook more tasks to run hosts! Host groups in your default inventory file delegate_to examples – run task on specific.. Instructions to remote computers in a single method or procedure that is the variable as file.... Wants to execute task here lets you see the results in your shell facts which made playbook. Email or by comment file tasks are completed the service will be web! For all the use cases of Ansible and tell Ansible what to execute the playbook is a human-created description the... Best way to learn is to explore and practice parts so you can other... Have listed most of them here for your easy access a human-created description the! Job example an Ansible network the server free to test them out and! For example roles from the IP_VAR variable and use Nmap to scan this host id of …. Space button twice is enough to get the IP addres from the Ansible Adhoc commands, see how they together! Done for you your easy access handle errors, and there is not much needed... And tell Ansible what to execute to Ansible during the execution, using option -e like:... Completed the service will be installed -- -inclusion ensures that the system recognizes. Tell Ansible what to execute the command syntax or sample to run single... A ansible playbook example instead of Ansible playbooks using the product id of that … 9k! The optional argument -i to point to the Jinja2 filter will then process it and return the resulting.., a for loop is run in other host or machine: you!: this Ansible playbook: how to perform a lot of playbook examples to you!