Docker - RUN vs ENTRYPOINT vs CMD
RUN - Specify commands to make changes to your Image and subsequently the Containers started from this Image. This includes updating packages, installing software, adding users, creating an initial database, setting up certificates, etc. These are the commands you would run at the command line to install and configure your application. Let's start with a basic dockerfile , where we are building an image with ubuntu as base image. Let's build the image. The size of the image which we build is "78.1" MB. I am going to install packages like "curl", "wget" on the base image. Now, the image size has increased from 78MB to 136MB. RUN command add another layer to the base image. RUN is primarily used for software installation and any configuration changes. ENTRYPOINT - Must be used if you want to start or a define a container main application or command. It always runs regardless of an additional CMD parameters. This image is build using base "a...