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Automatisation with Ansible

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Dear Customer, the RevolutionPi is based on an open source platform, which can lead to misbehavior of the devices. To solve some problems, you can use Ansible. Because Ansible is all about automation, it requires instructions to accomplish each job. With everything written down in simple script form, it's easy to do version control and automate repetitive tasks with relative ease. Regardless of whether it is a single system or many. It is available as open source software under the GNU General Public License for DevOps around the world.

Preparation

especially for Windows users

  • Installing “Ubuntu on Windows” on your Windows computer. Downloadable from the Microsoft Store
  • After the installation, enter the following commands:
sudo apt update
sudo apt install ansible tree

A Playbooks.zip file is provided to solve your problem. Copy this Playbook and paste it into the Ubuntu drive (\\wls$). The "\\wls$" drive is created immediately after you install the Ubuntu app on your Windows machine. There are the following files in the playbooks.zip folder:

  • Inventory

  • ".yml" file

  • a folder "files" with other files in it.

Just pay attention to the folder where the playbooks is inserted. For an Ansible script to run, you must be in the folder where it is pasted. For the realization of this tutorial, the playbook.zip was copied and inserted in the root folder of the "\\wls$" drive

  • The "Inventory" must be adjusted. In the inventory, you must enter the IP address of your target system. All devices on which the tasks are to be executed must be entered under [bet] as shown below.

First, type the following command in terminal of ubuntu on windows

cd playbooks
sudo nano inventory

  • SSH secures communication between your local machine and a remote system by fully encrypting that traffic. With ssh-keygen, an SSH key is created for your target system and entered into a repository. The repository is then always different. Type the following command in terminal of ubuntu on windows
ssh-keygen
  • After creating an SSH key, we can manually enter it into the authorized_keys file of the remote computer or use the ssh-copy-id command. Copy the key from the repository and save it on the target system (.ssh/authorized_keys)

Type the following command in terminal of ubuntu on windows

cat /root/.ssh/id_rsa.pub

Copy the SSH-Key from cat /root/.ssh/id_rsa.pub and insert in the file .ssh/authorized_keys.

Type the following command in terminal of your Target system (The Terminal you are using to be connected to your RevPi. For example: Putty, MobaXterm)

sudo nano .ssh/authorized_keys

Running the Ansible script

  • Now run the Ansible script in terminal of ubuntu on windows

for example, you have received for your issue a playbooks.zip order from the Kunbus Support to apply some tasks on your device or to solve a problem.

  • the playbook folder contains as standard:

  • Inventory

  • "Test.yml" file

  • a folder "files" with other files in it.

Type the following command in terminal of ubuntu on windows to run the "Test.yml" file

cd playbooks
ansible-playbook -i inventory -u pi Test.yml

After a successful running of the script, you will get a message like shown on the following picture:

Type the following command in the ubuntu terminal on Windows to ping the device you want to reach.

ansible bet -i inventory -m ping

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