How to Install Ansible on CentOS 7
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Summary: Learn how to install Ansible on CentOS 7 with this easy-to-follow guide. Discover the step-by-step process to set up Ansible, ensuring you’re ready for automation without any hassle.
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How to Install Ansible on CentOS 7: A Step-by-Step Guide
Ansible is a powerful automation tool that simplifies complex configuration tasks and administration. It uses a no-agent, no-daemon approach where all tasks are executed over SSH. This guide provides a step-by-step process to install Ansible on a CentOS 7 system.
Prerequisites
Before you start, make sure you have:
A CentOS 7 server set up.
Sudo privileges or access to the root user.
Step 1: Install EPEL Repository
Ansible is not available in the default CentOS 7 repositories. However, it is available in the Extra Packages for Enterprise Linux (EPEL) repo. First, you need to install the EPEL repository:
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Step 2: Install Ansible
With the EPEL repository enabled, you can now install Ansible:
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This command installs Ansible along with its dependencies.
Step 3: Verify Installation
Once the installation is complete, verify it by checking the version of Ansible. This also confirms that Ansible was installed correctly.
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This command will display the version of Ansible installed on your system along with some configuration details.
Step 4: Configure SSH Access (Optional)
Since Ansible primarily communicates with remote nodes through SSH, it is recommended to set up SSH keys for passwordless authentication. Here’s how you can do it:
Generate an SSH key pair on your CentOS server (if not already done):
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Copy the public key to the remote server you want to manage:
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Replace user@remote-host with the appropriate username and IP address or hostname of your remote server.
Step 5: Test Your Setup
To ensure that Ansible can connect to your nodes, you can try running a simple Ad-hoc command:
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Replace remote-username with the username you used in the SSH setup. This command checks the connectivity to all hosts in your default Ansible inventory (typically located at /etc/ansible/hosts). The response should be a pong from all configured hosts.
Conclusion
By following these steps, you have successfully installed Ansible on CentOS 7. You’re now ready to automate your IT infrastructure management using Ansible’s powerful features. Remember, the real power of Ansible lies in its playbooks and roles, so exploring further into these areas will greatly enhance your automation capabilities.
centos 7
