Docker Crash Course #1 - What is Docker_
22K views · Nov 9, 2023 codingpakistan.com
Description: In this video, we will cover the basics of Docker, including what it is, how it works, and why it is so popular. Docker is a platform for building, running, managing, and distributing applications as containers. Containers are lightweight, self-contained packages that include everything an application needs to run, including code, runtime, system tools, system libraries, and settings. This makes it easy to deploy and manage applications across different environments. What you'll learn: What is Docker? What are containers? Why is Docker so popular? How to install Docker How to create a Docker image How to run a Docker container How to manage Docker containers
Docker Crash Course #2 - Installing Docker
65K views · Nov 9, 2023 codingpakistan.com
Description: This video is the second part of a Docker crash course. In this video, you will learn how to install Docker on your system. We will cover the installation process for Windows, macOS, and Linux. What you'll learn: How to install Docker on Windows How to install Docker on macOS How to install Docker on Linux How to verify that Docker is installed correctly
Docker Crash Course #3 - Images & Containers
5K views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about the two foundational concepts of Docker: images and containers. What are images? Images are read-only templates that contain instructions for creating containers. They are stored in a Docker registry, such as Docker Hub, and can be downloaded and used to create new containers. What are containers? Containers are lightweight, isolated environments that run on a host machine. They contain everything an application needs to run, including code, runtime, system tools, system libraries, and settings. Containers are created from images, and they can be started, stopped, moved, and deleted. How do images and containers work together? Images are used to create containers. When you run a Docker image, Docker creates a new container from the image. The container is a running instance of the image. What you'll learn: What are Docker images? What are Docker containers? How to create Docker images How to run Docker containers How to manage Docker images and containers
Docker Crash Course #4 - Parent Images & Docker Hub
2K views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about the concept of parent images and how to use Docker Hub, the public registry for Docker images. What are parent images? A parent image is the base image that a new Docker image is built upon. The parent image provides the basic operating system and runtime environment for the new image. This allows you to reuse common components and avoid having to package everything from scratch. What is Docker Hub? Docker Hub is a public registry for Docker images. It is the largest repository of Docker images in the world, with over 180,000 images available. Docker Hub allows you to find, pull, and share Docker images. How do parent images and Docker Hub work together? When you create a new Docker image, you can specify a parent image. The new image will inherit all of the files and configurations from the parent image. This can save you a lot of time and effort, as you only need to add the files and configurations that are specific to your application. You can also use Docker Hub to find and pull parent images. Docker Hub has a search engine that you can use to find images, and you can also browse images by category. Once you have found an image that you want to use, you can pull it to your local Docker environment. What you'll learn: What are parent images in Docker? How to use parent images to create new Docker images What is Docker Hub? How to find and pull Docker images from Docker Hub How to share your Docker images on Docker Hub
Docker Crash Course #5 - The Dockerfile
103 views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about Dockerfiles, which are text files that contain instructions for building Docker images. Dockerfiles are essential for building repeatable and consistent Docker images. What is a Dockerfile? A Dockerfile is a text file that contains a set of instructions that Docker uses to build a Docker image. The instructions in a Dockerfile are executed in order, and each instruction can add a new layer to the image. What are the benefits of using Dockerfiles? There are many benefits to using Dockerfiles, including: Repeatability: Dockerfiles ensure that Docker images are built in a consistent and repeatable way. Consistency: Dockerfiles help to ensure that Docker images are consistent across different environments. Version control: Dockerfiles can be stored in version control systems, which allows you to track changes and revert to previous versions. Documentation: Dockerfiles can serve as documentation for your Docker images. What are the parts of a Dockerfile? A Dockerfile consists of a series of instructions, each of which starts with a keyword. The most common Dockerfile instructions include: FROM: The FROM instruction specifies the base image for the new image. RUN: The RUN instruction executes a command in the build environment. CMD: The CMD instruction specifies the command that will be executed when the container is run. EXPOSE: The EXPOSE instruction exposes a port on the container. VOLUME: The VOLUME instruction mounts a directory from the host machine into the container. What you'll learn: What is a Dockerfile? How to create a Dockerfile What are the different Dockerfile instructions? How to use Dockerfiles to build Docker images How to troubleshoot Dockerfile errors
Docker Crash Course #6 - dockerignore
246 views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about the .dockerignore file, which is a text file that specifies the files and directories that should be excluded from a Docker image. This can help to reduce the size of your images and improve the performance of your containers. What is a .dockerignore file? A .dockerignore file is a text file that contains patterns that match files and directories that should be excluded from a Docker image. The patterns are similar to the patterns that you can use in the .gitignore file to exclude files from a Git repository. Why should I use a .dockerignore file? There are several reasons why you should use a .dockerignore file: Reduce image size: By excluding files that are not needed in your image, you can reduce the size of your image. This can make your images easier to store and transfer, and it can also improve the performance of your containers. Improve build speed: When Docker builds an image, it includes all of the files that are present in the source directory. This can take a long time for large projects, especially if there are many files that are not needed in the image. By using a .dockerignore file, you can tell Docker to skip copying these files, which can significantly improve the build speed. Enhance image security: By excluding sensitive files such as configuration files and passwords, you can help to protect your containers from unauthorized access.
Docker Crash Course #7 - Starting & Stopping Containers
7K views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn how to start and stop Docker containers. Starting and stopping containers is a fundamental task that you will need to perform frequently when you are working with Docker. How to start a Docker container To start a Docker container, you can use the docker run command. The docker run command takes the name of the image that you want to run as an argument. For example, to start a container from the nginx image, you would use the following command:
Docker Crash Course #8 - Layer Caching
941 views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about layer caching, which is a feature of Docker that can improve the performance of your builds. Layer caching allows Docker to reuse layers from previously built images, which can significantly reduce the build time of your images. What is layer caching? Layer caching is a feature of Docker that allows Docker to reuse layers from previously built images. A layer is a unit of storage in a Docker image. Layers are created when you add a new instruction to a Dockerfile. When you build a Docker image, Docker creates a new layer for each instruction in the Dockerfile.
Docker Crash Course #9 - Managing Images & Containers
5K views · Nov 9, 2023 codingpakistan.com
Description: In this video, we will cover the essential aspects of managing Docker images and containers. You will learn how to effectively handle the lifecycle of images and containers, ensuring your Docker environment remains organized and streamlined. Managing Docker Images Docker images serve as the blueprints for creating containers. They encapsulate the application's code, dependencies, and configurations, allowing for reproducible and consistent deployments. Listing Docker Images To view a list of all existing Docker images, use the docker images command. This will provide an overview of the image IDs, image names, and their repository sources. Inspecting Docker Images To delve into details of a specific image, use the docker inspect command followed by the image ID or name. This will reveal the image's layers, configuration details, and other valuable information. Pulling Docker Images To retrieve images from Docker Hub, the public Docker image registry, use the docker pull command followed by the image name. This will download the image and make it available for use locally. Removing Docker Images To remove unused or outdated images, use the docker rm command followed by the image IDs or names. This will free up disk space and eliminate clutter in your Docker environment.
Docker Crash Course #10 - Volumes
2K views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about Docker volumes, which are a way to persist data outside of Docker containers. This is important because containers are ephemeral, meaning that they are destroyed when they are stopped. Volumes allow you to save data so that it can be used by other containers. What are Docker volumes? Docker volumes are persistent storage that is mounted to Docker containers. This means that data stored in a volume can be accessed by any container that is mounted to the volume, even if the container is stopped and restarted. Why use Docker volumes? There are several reasons why you would want to use Docker volumes: Data persistence: Docker volumes allow you to persist data outside of Docker containers, which means that you can keep your data even if the container is stopped or deleted. Data sharing: Docker volumes can be shared between multiple containers, which makes it easy to share data between applications. Data portability: Docker volumes can be easily moved between different Docker hosts, which makes it easy to back up and restore your data.
Docker Crash Course #11 - Docker Compose
956 views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn about Docker Compose, a tool for defining and running multi-container Docker applications. Docker Compose allows you to define the services that make up your application in a YAML file, and then you can use a single command to start and stop all of the services. What is Docker Compose? Docker Compose is a tool for defining and running multi-container Docker applications. It allows you to define the services that make up your application in a YAML file, and then you can use a single command to start and stop all of the services. This can make it much easier to manage complex Docker applications. Why use Docker Compose? There are several reasons why you would want to use Docker Compose: Simplified configuration: Docker Compose allows you to define your entire application stack in a single YAML file. This makes it much easier to configure and manage your application. Repeatable deployments: Docker Compose allows you to deploy your application in a consistent way across different environments. This can make it easier to test and deploy your application. Dependency management: Docker Compose can automatically manage the dependencies between your services. This can make it easier to troubleshoot your application.
Docker Crash Course #12 - Dockerizing a React App
24K views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn how to dockerize a React app, which means creating a Docker image that contains your React application and all of its dependencies. This will allow you to deploy your React app to any environment that has Docker installed. What is Dockerization? Dockerization is the process of packaging an application and its dependencies into a Docker image. A Docker image is a read-only template that contains instructions for creating a Docker container. A Docker container is a running instance of a Docker image. Why Dockerize a React App? There are several reasons why you would want to dockerize a React app: Portability: Docker images can be easily moved between different environments, such as development, staging, and production. This makes it easy to deploy your React app to different environments without having to worry about installing dependencies. Reproducibility: Docker images are always consistent, which means that you can be sure that your React app will run the same way on every environment that it is deployed to. Isolation: Docker containers are isolated from each other, which means that they cannot interfere with each other. This can help to prevent problems caused by conflicting dependencies.
Docker Crash Course #13 - Sharing Images on Docker Hub
964 views · Nov 9, 2023 codingpakistan.com
Description: In this video, you will learn how to share your Docker images on Docker Hub, which is a public registry where you can store and share Docker images with others. This is a great way to collaborate with other developers and share your work with the world. What is Docker Hub? Docker Hub is a public registry where you can store and share Docker images. It is the largest repository of Docker images in the world, with over 180,000 images available. Docker Hub makes it easy to find, pull, and share Docker images. Why share your Docker images on Docker Hub? There are several reasons why you would want to share your Docker images on Docker Hub: Collaboration: Docker Hub makes it easy to collaborate with other developers by sharing your images publicly. This can be a great way to get feedback on your work and to get your images used by others. Visibility: Sharing your Docker images on Docker Hub can help to increase the visibility of your work. This can lead to more people using your images and to more opportunities for collaboration. Reusability: Sharing your Docker images on Docker Hub can make it easier for others to reuse your work. This can save time and effort for other developers.