easy-docker
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thanhtpham
Easy Docker is a repository of Dockerfiles, Docker Compose scripts, and other Docker resources, aimed at simplifying the deployment and management of popular applications and services.
Easy Docker
Easy Docker is a repository of Dockerfiles, Docker Compose scripts, and other Docker resources, aimed at simplifying the deployment and management of popular applications and services.
Table of Contents
- Getting Started
- Understanding Docker
- Docker Terminology
- Dockerfile
- Understanding Dockerfile
- Dockerfile Instructions
- Dockerfile Examples
- Docker Compose
- Contributing
- License
1. Getting Started
1.1. Understanding Docker
- Facilitates consistent development, testing, and deployment environments, ensuring that the software behaves the same way in every stage.
- Supports a microservices architecture, allowing each service to be packaged into a separate container.
- Provides version control for containers, making it easy to roll back to a previous version if needed.
- Offers a vast repository of pre-built images for various software, reducing the setup time.
- Enhances resource utilization as containers are lightweight and start quickly compared to traditional virtual machines.
1.2. Docker Terminology
Click me
| Term | Description |
|---|---|
| Docker Registry | A storage system for Docker images that hosts and manages them, facilitating their sharing and distribution. |
| Docker Repository | A collection of Docker images that are related, identified by a common name, and differentiated by their versions. |
| Docker Images | Self-contained packages that include everything necessary to run applications. |
| Docker Container | Lightweight, runnable instances of Docker images. |
| Dockerfile | A text file that contains all the commands or instructions needed to build a Docker image. |
| Docker Compose | A tool for defining and running multi-container Docker applications. It uses YAML files to configure application's services. |
| Docker Swarm | A native clustering and scheduling tool for Docker containers. It turns a pool of Docker hosts into a single, virtual host. |
| Docker Hub | A cloud-based registry service for building and shipping application or service containers. It provides a centralized resource for container image discovery. |
| Docker Engine | The runtime that runs and manages containers on a host machine. It's the core of Docker and it consists of a server, a REST API and a command line interface (CLI). |
| Docker Volume | Provides persistent storage for Docker containers, managing data beyond the container's lifecycle and enabling data persistence. |
| Docker Network | Enables communication among Docker containers and between containers and the host, providing networking and connectivity. |
2. Dockerfile
2.1. Understanding Dockerfile
A Dockerfile is a text file that contains all the commands or instructions needed to build a Docker image. It is a simple way to automate the image creation process. Docker reads the Dockerfile and executes the instructions in it to build a Docker image.
2.2. Dockerfile Instructions
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| Instruction | Description |
|---|---|
| FROM | Specifies the base image for the Docker image |
| WORKDIR | Defines the working directory for the following Dockerfile instructions |
| COPY / ADD | Transfers files and directories from the host machine to the Docker image. ADD supports URLs and automatic decompression of files |
| ENV | Establishes environment variables within the Docker image |
| RUN | Runs commands during the Docker image build process |
| EXPOSE | Indicates the ports the container listens on |
| ENTRYPOINT / CMD | Sets the default command for a container. CMD can be overridden at runtime, ENTRYPOINT cannot |
| ARG | Defines a variable that users can pass at build-time to the builder with the docker build command |
| USER | Sets the user name or UID to use when running the image and for any RUN, CMD and ENTRYPOINT instructions that follow it in the Dockerfile |
| VOLUME | Creates a mount point with the specified name and marks it as holding externally mounted volumes from native host or other containers |
2.3. Dockerfile Examples
- Dockerize static application (React, Angular, Vue + Nginx)
- Dockerize Next.js application
- Dockerize Node.js application (Express, Nest.js)
3. Docker Compose (Coming Soon)
4. Contributing
Contributions are welcome! Please read full text for more information.
5. License
This project is open and does not have a specific license. You may use this project as you wish.
Metadata
Owner
thanhtpham
Metadata
Easy Docker is a repository of Dockerfiles, Docker Compose scripts, and other Docker resources, aimed at simplifying the deployment and management of popular applications and services.