Docker Reference Link

 https://docs.docker.com/reference/dockerfile/

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Docker Volumes

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When do we need Docker volumes ? What is Docker Volume ? 3 Volume types Docker Volumes in Docker compose file ============ Volumes : On the host there will be a Physical File system path and we plug into the docker container. So what happens is when the container writes it to its file system it get replicated to the physical file system. If i change somerthing on the physical file system gets replicated the containers as well - it works Vice-Versa First type: Host Volume:  This type will give you the right to decide which volume on the host file must be used. docker run -v /home/mount/data:/va/lib/mysql/data /home/mount/data  -- Host directory /va/lib/mysql/data -- Container file system --- Second type  - Anonymous volumes  just by specifying the container filesystem which host file should be mounted is taken care by docker itself so that directory is automatically created by docker  docker run -v  :/va/lib/mysql/data here you are only referencing the conta...
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Docker Commands

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 Docker Commands 1. General Docker Commands docker --version Check the installed Docker version. docker info Display system-wide information about Docker. 2. Docker Image Commands docker build -t <image_name> . Build a Docker image from a Dockerfile in the current directory. docker pull <image_name> Download an image from Docker Hub or another registry. docker push <image_name> Push a local image to a Docker registry. docker images or docker image ls List all available images on your local machine. docker rmi <image_name> Remove an image from your local machine. docker tag <source_image> <target_image> Tag an image with a new name. docker inspect <image_name> Get detailed information about an image. 3. Docker Container Commands docker run <image_name> Create and start a container from an image. docker ps or docker container ls List all running containers. docker ps -a or docker contai...
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Docker: Create a Docker file - IMAGE

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Building a Docker image involves creating a Dockerfile, which is a text file containing instructions for Docker to build an image with the required software and configurations. Here's a step-by-step guide on how to create and build a Docker image using a Dockerfile: Create a Dockerfile: Create a new file named Dockerfile in your project directory. Open the file with a text editor or an integrated development environment (IDE). Choose a Base Image: Start your Dockerfile with the choice of a base image. A base image provides the starting point for your image. For example, to use an official Ubuntu base image: FROM ubuntu:20.04 Install Dependencies and Set Up Your Application: Use the RUN instruction to install packages, set up environment variables, and configure your application: RUN apt-get update && \   ...
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