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Install Docker Using Ansible Playbook Ubuntu



  1. Install Docker Using Ansible Playbook Ubuntu Debian
  2. Install Docker Using Ansible Playbook Ubuntu Linux
  3. Install Docker Using Ansible Playbook Ubuntu Bootable
  4. Install Docker Using Ansible Playbook Ubuntu Vm

A module is a reusable, standalone script that Ansible runs on your behalf, either locally or remotely. Modules interact with your local machine, an API, or a remote system to perform specific tasks like changing a database password or spinning up a cloud instance. Each module can be used by the Ansible API, or by the ansible or ansible-playbook programs. A module provides a defined interface, accepts arguments, and returns information to Ansible by printing a JSON string to stdout before exiting.

Playbook

Run ansible-playbook again: $ ansible-playbook -ask-become-pass / installpackages / site.yml. This time, the playbook runs on your remote system. Should you add more hosts, there are many ways to filter which host performs which task. For instance, you can create groups of hosts (webservers for servers, workstations for desktop machines. In this tutorial, we're going to deploy and run the Ansible playbook for basic LEMP installation thought the Ansible AWX dashboard. We've two servers for the awx itself and the target machine. 10.5.5.20 ansible-awx 10.5.5.21 lemp. Now we're going to deploy the playbook as the user called 'hakase' and using the key-based SSH authentication.

If you need functionality that is not available in any of the thousands of Ansible modules found in collections, you can easily write your own custom module. When you write a module for local use, you can choose any programming language and follow your own rules. Use this topic to learn how to create an Ansible module in Python. After you create a module, you must add it locally to the appropriate directory so that Ansible can find and execute it. For details about adding a module locally, see Adding modules and plugins locally.

  • Docker is an application that simplifies the process of managing application processes in containers. This guide explains how to use Ansible to automate the steps contained in our guide on How To Install and Use Docker on Ubuntu 18.04. Ansible is a mo.
  • Step 2: Install Ansible on Ubuntu. Install the latest release of Ansible using the commands below. Install Ansible on Ubuntu 20.04: sudo apt update sudo apt install ansible. Install Ansible on Ubuntu 18.04.
  • Now we have to install Docker because Docker images will be used for managing the containers in the cluster. Run the following commands: # sudo su # apt-get update # apt-get install -y docker.io. Next we have to install these 3 essential components for setting up Kubernetes environment: kubeadm, kubectl, and kubelet.

Due to dependencies (for example ansible -> paramiko -> pynacl -> libffi):

  1. Clone the Ansible repository:$gitclonehttps://github.com/ansible/ansible.git

  2. Change directory into the repository root dir: $cdansible

  3. Create a virtual environment: $python3-mvenvvenv (or forPython 2 $virtualenvvenv. Note, this requires you to installthe virtualenv package: $pipinstallvirtualenv)

  4. Activate the virtual environment: $.venv/bin/activate

  5. Install development requirements:$pipinstall-rrequirements.txt

  6. Run the environment setup script for each new dev shell process:$.hacking/env-setup

Note

After the initial setup above, every time you are ready to startdeveloping Ansible you should be able to just run the following from theroot of the Ansible repo:$.venv/bin/activate&&.hacking/env-setup

Ansible gathers information about the target machines using facts modules, and gathers information on other objects or files using info modules.If you find yourself trying to add state:info or state:list to an existing module, that is often a sign that a new dedicated _facts or _info module is needed.

In Ansible 2.8 and onwards, we have two type of information modules, they are *_info and *_facts.

Install Docker Using Ansible Playbook Ubuntu Debian

If a module is named <something>_facts, it should be because its main purpose is returning ansible_facts. Do not name modules that do not do this with _facts.Only use ansible_facts for information that is specific to the host machine, for example network interfaces and their configuration, which operating system and which programs are installed.

Install docker using ansible playbook ubuntu debian

Modules that query/return general information (and not ansible_facts) should be named _info.General information is non-host specific information, for example information on online/cloud services (you can access different accounts for the same online service from the same host), or information on VMs and containers accessible from the machine, or information on individual files or programs.

Info and facts modules, are just like any other Ansible Module, with a few minor requirements:

  1. They MUST be named <something>_info or <something>_facts, where <something> is singular.

  2. Info *_info modules MUST return in the form of the result dictionary so other modules can access them.

  3. Fact *_facts modules MUST return in the ansible_facts field of the result dictionary so other modules can access them.

  4. They MUST support check_mode.

  5. They MUST NOT make any changes to the system.

  6. They MUST document the return fields and examples.

To create an info module:

  1. Navigate to the correct directory for your new module: $cdlib/ansible/modules/. If you are developing module using collection, $cdplugins/modules/ inside your collection development tree.

  2. Create your new module file: $touchmy_test_info.py.

  3. Paste the content below into your new info module file. It includes the required Ansible format and documentation, a simple argument spec for declaring the module options, and some example code.

  4. Modify and extend the code to do what you want your new info module to do. See the programming tips and Python 3 compatibility pages for pointers on writing clean and concise module code.

Use the same process to create a facts module.

To create a new module:

  1. Navigate to the correct directory for your new module: $cdlib/ansible/modules/. If you are developing a module in a collection, $cdplugins/modules/ inside your collection development tree.

  2. Create your new module file: $touchmy_test.py.

  3. Paste the content below into your new module file. It includes the required Ansible format and documentation, a simple argument spec for declaring the module options, and some example code.

  4. Modify and extend the code to do what you want your new module to do. See the programming tips and Python 3 compatibility pages for pointers on writing clean and concise module code.

After you modify the sample code above to do what you want, you can try out your module.Our debugging tips will help if you run into bugs as you verify your module code.

If your module does not need to target a remote host, you can quickly and easily exercise your code locally like this:

  • Create an arguments file, a basic JSON config file that passes parameters to your module so you can run it. Name the arguments file /tmp/args.json and add the following content:

  • If you are using a virtual environment (highly recommended fordevelopment) activate it: $.venv/bin/activate

  • Setup the environment for development: $.hacking/env-setup

  • Run your test module locally and directly:$python-mansible.modules.my_test/tmp/args.json

This should return output like this:

The next step in testing your new module is to consume it with an Ansible playbook.

  • Create a playbook in any directory: $touchtestmod.yml

  • Add the following to the new playbook file:

  • Run the playbook and analyze the output: $ansible-playbook./testmod.yml

These two examples will get you started with testing your module code. Please review our testing section for more detailedinformation, including instructions for testing module documentation, adding integration tests, and more.

Note

Install Docker Using Ansible Playbook Ubuntu

Every new module and plugin should have integration tests, even if the tests cannot be run on Ansible CI infrastructure.In this case, the tests should be marked with the unsupported alias in aliases file.

You can run through Ansible’s sanity checks in a container:

$ansible-testsanity-v--docker--python2.7MODULE_NAME

Note

Note that this example requires Docker to be installed and running. If you’d rather not use a container for this, you can choose to use --venv instead of --docker.

Install Docker Using Ansible Playbook Ubuntu Linux

You can add unit tests for your module in ./test/units/modules. You must first setup your testing environment. In this example, we’re using Python 3.5.

  • Install the requirements (outside of your virtual environment): $pip3install-r./test/lib/ansible_test/_data/requirements/units.txt

  • Run .hacking/env-setup

  • To run all tests do the following: $ansible-testunits--python3.5. If you are using a CI environment, these tests will run automatically.

To run pytest against a single test module, you can do the following (provide the path to the test module appropriately):

$pytest-ra--cov=.--cov-report=html--fulltrace--coloryestest/units/modules/.../test/my_test.py

If you would like to contribute to ansible-base by adding a new feature or fixing a bug, create a fork of the ansible/ansible repository and develop against a new feature branch using the devel branch as a starting point. When you you have a good working code change, you can submit a pull request to the Ansible repository by selecting your feature branch as a source and the Ansible devel branch as a target.

If you want to contribute a module to an Ansible collection, review our submission checklist, programming tips, and strategy for maintaining Python 2 and Python 3 compatibility, as well as information about testing before you open a pull request.

The Community Guide covers how to open a pull request and what happens next.

Join the IRC channel #ansible-devel on freenode for discussionssurrounding Ansible development.

Install Docker Using Ansible Playbook Ubuntu Bootable

For questions and discussions pertaining to using the Ansible product,use the #ansible channel.

Install Docker Using Ansible Playbook Ubuntu Vm

For more specific IRC channels look at Community Guide, Communicating.

Thank you to Thomas Stringer (@trstringer) for contributing sourcematerial for this topic.