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What is DevOps

Introduction

DevOps is a set of practices that combines software development (Dev) and IT operations (Ops) to shorten the systems development life cycle and provide continuous delivery with high software quality. DevOps is complementary with Agile software development; several DevOps aspects came from Agile methodology.

Getting started

To get started with DevOps, you will need to install the following tools:

  • Git: A distributed version control system
  • Docker: A containerization platform
  • Kubernetes: An orchestration platform
  • Ansible: An automation tool
  • Jenkins: A continuous integration and continuous delivery (CI/CD) tool

Once you have installed the necessary tools, you can follow these steps to get started with DevOps:

  • Create a Git repository for your project.
  • Clone the repository to your local machine.
  • Create a Dockerfile to define your container image.
  • Build the container image.
  • Push the container image to a registry.
  • Create a Kubernetes deployment to run your container image.
  • Create an Ansible playbook to automate your infrastructure deployment.
  • Create a Jenkins pipeline to automate your CI/CD process.

Building and testing

To build and test your code, you can use the following steps:

  • Clone the Git repository to your local machine.
  • Build the code using the appropriate tools.
  • Run the tests.
  • If the tests pass, push the changes to the Git repository.

Deployment

To deploy your code, you can use the following steps:

  • Build the Docker image.
  • Push the Docker image to a registry.
  • Update the Kubernetes deployment to use the new Docker image.

Monitoring and logging

To monitor and log your application, you can use the following tools:

  • Prometheus: A monitoring and alerting system
  • Grafana: A data visualization tool
  • Elasticsearch: A search and analytics engine
  • Kibana: A data visualization tool for Elasticsearch

Security

To secure your application, you can use the following tools:

  • Clair: A container image vulnerability scanner
  • Trivy: A vulnerability scanner for container images, filesystems, and Git repositories
  • Falco: A runtime security observability tool

Contributing

If you would like to contribute to this project, please follow these steps:

  • Fork the Git repository.
  • Create a new branch for your changes.
  • Make your changes and commit them to the branch.
  • Push the branch to your fork.
  • Submit a pull request.

Conclusion

DevOps is a powerful set of practices that can help you to automate your software development and delivery process. By following the steps in this README, you can get started with DevOps and start to reap the benefits.