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Tabla de Contenidos

Docker Commands
- Basic
- Docker compose
  - docker-compose.yml

Docker Commands

Basic

Create and start a container

Creating a running a container from an image

docker run <image name> command

docker run busybox echo hi there

Create a container

docker create <image name>

Start a container

docker start <container id>

Info about containers

See all containers

docker ps –all

Get the running containers

docker ps

Remove all containers

docker system prune

Retrieving logs

docker logs <container id>

Stop containers

Stop a container

docker stop <container id>

Kill a container

docker kill <container id>

Executing commands

On a running container

docker exec -it <container id> <command>

docker exec -it b65878 redis-cli

Also…

docker exec -it 4e3d15 sh

Images

Build the Dockerfile in the current path

docker build .

Tagging an image

docker build -t alfred/redis:latest .

docker build -t dockerid/projectname:version <directory>

docker build -t mine/redis:latest .
docker run mine/redis:latest

Docker compose

Build a docker-compose.yml: docker-compose build

Run a docker-compose.yml: docker-compose up

Build and run as daemon a docker-compose.yml: docker-compose up -d –build

Run only one service: docker-compose up app

docker-compose.yml

Set environment variables

services:
  app:
    build: .
    command: gunicorn OpenAwards.wsgi:application --bind 0.0.0.0:8000
    volumes:
      - ./:/srv/app/
    environment:
      - DB_HOST=db
      - DJANGO_SETTINGS_MODULE=${DJANGO_SETTINGS_MODULE}
...

Then: env DJANGO_SETTINGS_MODULE=OpenAwards.settings.production docker-coompose up

Programming

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