DevOps

DevOps DevOps

01/02/2025

π‘»π’†π’“π’“π’‚π’‡π’π’“π’Ž π‘­π’π’π’˜ π’Šπ’ π‘ͺ𝑰/π‘ͺ𝑫 π‘»π’†π’“π’“π’‚π’‡π’π’“π’Ž 𝑫𝒆𝒗𝑢𝒑𝒔

1. 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓
- Role: The developer creates both the Terraform configuration files and the application code, ensuring that infrastructure and application requirements align seamlessly.

2. 𝑺𝒐𝒖𝒓𝒄𝒆 π‘ͺ𝒐𝒏𝒕𝒓𝒐𝒍
- Process: After writing the code, the developer commits changes to a local Git repository. This is followed by pushing these commits to a remote repository, allowing for collaborative development and version control.

3. π‘Ίπ’•π’‚π’•π’Šπ’„ π‘ͺ𝒐𝒅𝒆 π‘¨π’π’‚π’π’šπ’”π’Šπ’”
- Purpose: Before initiating the CI/CD pipeline, a static code analysis tool, such as SonarQube, scans the code for potential security vulnerabilities and assesses overall code quality. This step helps catch issues early in the development process.

4. π‚πˆ/𝐂𝐃 𝐓𝐨𝐨π₯ π“π«π’π π πžπ«
- Action: The push to the remote repository automatically triggers the CI/CD pipeline configured in Jenkins, initiating the automated workflow.

5. π‚πˆ/𝐂𝐃 𝐓𝐨𝐨π₯𝐬
- Options: Various CI/CD tools are available, including CircleCI, GitHub Actions, and ArgoCD, providing flexibility based on project needs and team preferences.

6. π‘»π’†π’“π’“π’‚π’‡π’π’“π’Ž π‘°π’π’Šπ’•π’Šπ’‚π’π’Šπ’›π’‚π’•π’Šπ’π’
- Command: Jenkins executes the `terraform init` command to set up the Terraform working directory. This step involves downloading the necessary provider plugins to ensure proper configuration.

7. 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 π‘·π’π’‚π’π’π’Šπ’π’ˆ
- Ex*****on: The `terraform plan` command is run by Jenkins, generating an ex*****on plan that outlines the actions Terraform will take to achieve the desired state specified in the configuration files.

8. 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 π‘¨π’‘π’‘π’π’Šπ’„π’‚π’•π’Šπ’π’
- Implementation: Jenkins then runs `terraform apply`, applying the planned changes to the infrastructure. This step implements actual modifications to the cloud resources as defined in the Terraform configuration.

9. 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 π‘«π’†π’‘π’π’π’šπ’Žπ’†π’π’•
- Outcome: The infrastructure is deployed to the designated cloud provider, such as AWS, Azure, or GCP, ensuring that resources are correctly provisioned.

10. 𝑰𝒏𝒇𝒓𝒂𝒔𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 π‘Ήπ’†π’‚π’…π’š 𝒇𝒐𝒓 𝑼𝒔𝒆
- Result: The deployed resources, including virtual machines, networks, and storage, are now provisioned and available for immediate use, enabling further development and deployment of applications.

This structure improves readability while maintaining clarity, making it more engaging for your audience on social media or in presentations.

8 Must Know Docker Concepts:Docker completely changes the game by making your app portable and consistent across environ...
01/02/2025

8 Must Know Docker Concepts:

Docker completely changes the game by making your app portable and consistent across environments.

1. Dockerfile
What it does: Automates image creation step by step.
Key Commands:
β€’ docker build -t my-app . β†’ Build an image from a Dockerfile.
β€’ docker history β†’ See how the image was built.

2. Docker Image
What it does: It is the read-only blueprint for containers, packaging your app with its dependencies.
Key Commands:
β€’ docker images β†’ List all images.
β€’ docker rmi β†’ Remove an image.
β€’ docker inspect β†’ View image details.

3. Docker Container
It is a running instance of an image.
What it does: Runs your app in isolated environments.
Key Commands:
β€’ docker run -d -p 8080:80 nginx β†’ Run a container in detached mode.
β€’ docker ps β†’ List running containers.
β€’ docker exec -it /bin/bash β†’ Access the container shell.
β€’ docker logs β†’ View logs from a running container.
β€’ docker stop β†’ Stop a container.

4. Docker Registry
It stores and distributes Docker images (e.g., DockerHub).
What it does: Enables sharing and versioning of images.
Key Commands:
β€’ docker login β†’ Authenticate to a registry.
β€’ docker push β†’ Push an image to the registry.
β€’ docker pull β†’ Download an image from the registry.
β€’ docker tag β†’ Add a tag to an image.

5. Docker Volumes
What it does: Keeps data even if the container is deleted.
Key Commands:
β€’ docker volume create my-data β†’ Create a volume.
β€’ docker volume ls β†’ List all volumes.
β€’ docker volume rm my-data β†’ Remove a volume.

6. Docker Compose
It is used to define and run multi-container Docker applications using a simple YAML file.
What it does: Orchestrates services, networks, and volumes for multiple containers.
Key Commands:
β€’ docker-compose up β†’ Start services.
β€’ docker-compose down β†’ Stop and remove services.
β€’ docker-compose logs β†’ View logs of all services.
β€’ docker-compose ps β†’ See the status of containers.

7. Docker Networks
It allow containers to communicate securely.
What it does: Ensures isolated and connected environments for containers.
Key Commands:
β€’ docker network create my-network β†’ Create a network.
β€’ docker run --network my-network nginx β†’ Run a container in a network.
β€’ docker network inspect my-network β†’ View details of a network.
β€’ docker network prune β†’ Remove unused networks.

8. Docker CLI
A command-line interface for managing Docker.
What it does: Simplifies everything from building images to managing containers.
Common Commands:
β€’ docker build -t my-app . β†’ Build an image.
β€’ docker run -d -p 8080:80 my-app β†’ Run a container.
β€’ docker ps -a β†’ List all containers (running & stopped).
β€’ docker stop β†’ Stop a container.
β€’ docker system prune β†’ Clean up unused images, containers, and volumes.

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