What Is Ansible ?
Ansible is an open source automation tool which helps in configuration management and application deployment . Ansible uses SSH to connect with the other hosts for running tasks . Ansible uses playbook to write the tasks . Tasks are basically the description of a job. For example installation of docker , pulling docker image , etc . Playbooks are written in using YAML . Ansible helps to maintain multiple machine at a time . Lets say there are 10 machines which needs system update . The system update can be performed through Ansible without any manual installation on each machine . This agentless approach reduces the manual overhead . In summary we can say Ansible is a powerful open source automation tool which is used by organizations to manage configuration remotely over multiple machines which results in improving the efficiency and reducing the manual overhead .
Automating Docker Deployments With Ansible
Docker is a tool used to dockerize the application along with its dependencies, on the other hand, Ansible is a tool used to manage configuration and deploy applications on other machines. Here in this guide, I will first discuss what is Docker. Then I will discuss What is Ansible. After this, I will walk you through the steps to deploy and run a nginx docker container by using Ansible.