Docker

docker-cheatsheet.md

Steps to build an image and start a container from that image

# Build an image from a Dockerfile
> docker build -t <image_name> .

# List images
> docker images 
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
<image_name>       latest             47da5935a6e9        11 minutes ago      910MB
...

# Run a command in a new container
> docker run <image_name>
# OR in interactive mode
> docker run -i -t <image_name> /bin/bash

You can use other ways to specify an image
<REPOSITORY> docker will automatically run image with 'latest' tag
<REPOSITORY>:<TAG>
<IMAGE ID>

• https://stackoverflow.com/a/18498313/2259286
• https://stackoverflow.com/a/37269299/2259286

Purging all Images, Containers, Volumes, and Networks

# clean up any resources — images, containers, volumes, and networks — that are dangling
> docker system prune

# To additionally remove any stopped containers and all unused images
> docker system prune -a

# delete container
> docker stop <container_id>
> docker rm <container_id>

# delete image
> docker rmi <image_id>

• https://www.digitalocean.com/community/tutorials/how-to-remove-docker-images-containers-and-volumes