Intro

Agenda

Simplify Your Dockerfile

To Create a New Directory

Check if the File Is Created

Going To Create a File Called Docker File

Docker File

Step Number Five Here We Are Going To Start Docker and Build Docker Image from Docker File

Docker Build

A New Docker Image

Run the Docker Container from the Image

Docker Run

Build a Docker Image from the Docker File

Intro

What is a Dockerfile?

How the Dockerfile commands map to the image environment

Create the Dockerfile (Demo)

Build an image out of the Dockerfile

Start the Application to verify: 1) App starts successfully 2) App environment is configured correctly

do improvement - copy only relevant files

Today's Topic: What is Dockerfile?

Explained Dockerfile

Tactics and Tools for Troubleshooting Docker – Online Course Available on Pluralsight

Set up a working directory

Download the dependencies

Mount context files over to the build container

Mount all of the build context into the container

Manage your versions of packages in your docker file

Add build arguments in the docker

Split the current base stage into two stages

Create an empty image with just two files

Inspect the output directory

What is Dockerfile?

How to create a Dockerfile

Run vs cmd

How to tag docker images

How to run Dockerfile

How to run docker images

Dockerfile Steps

Useful Dockerfile References

Dockerfile Reference

Conclusion

Intro

Environment Variables in Dockerfile

Starting a Container

Dockerfile Parameters

Running the Docker Image

Image IDs

Downside of Optimized Image

Labels

Dockerfile Example

Conclusion

Intro

What is RUN command

Run command syntax

Running the Dockerfile

Run apt-get update

How docker works internally?

Conclusion

What is dockerfile

How to write dockerfile

Dockerfile format

Dockerfile FROM instruction

Dockerfile RUN instruction

Dockerfile WORKDIR instruction

Dockerfile USER instruction

Dockerfile SHELL instruction

Dockerfile ENV instruction

Dockerfile COPY instruction

Dockerfile ADD instruction

Dockerfile EXPOSE instruction

Dockerfile ENTRYPOINT and CMD instruction

Dockerfile LABEL instruction

What is Docker?

What is Dockerfile?

Syntax of Dockerfile

How to build Docker Images using Dockerfile?

Demo – Create a Docker file

Intro

Anatomy of a Dockerfile

What happens when we build an image

Building the image

Selecting an image

Running our Docker Image

Mapping ports

Making changes in containers

Building a Docker Image

Conclusion

What is Docker?

What is a Container?

What is an Image?

What are we doing Today?

It all starts with a Dockerfile - FROM

Environment Variables - ENV

COPY Command

Source files

COPY command destination

EXPOSE (You don't need this)

CMD Entry point

How to Build a Docker image

Building image with a tag

How create a container

See our container running

Stopping and starting containers

Cleaning up containers and images

Dockerignore files (how to ignore files)

Docker exec into a container

Add file to dockerignore file

Other base images

Stream Highlight - "Traefik is a series of tubes"

Docker File Docker Image and Docker Container

Docker File

Example Docker File

What Is the Base Image

Intro

What is Dockerfile?

How to create a Dockerfile

Dockerfile layers

Run command in Dockerfile

Entrypoint and CMD

Workdir statement

Override parameters

How to overwrite entry point

Difference between CMD and ENTRYPOINT

Docker Image Layers

What is a Dockerfile?

Npm install

Installing the VSCode Docker Extension

Relative paths inside images

Run commands in containers

Runtime commands

EXPOSE instruction

Building a Docker Image

Running a Docker Image

Create a new docker file

Copy it into the working directory

Setting the entry point