million12/docker-docker

Name: docker-docker

Owner: MILLION12

Description: Docker in a Docker

Created: 2016-06-22 13:33:56.0

Updated: 2017-03-14 23:37:55.0

Pushed: 2016-06-22 15:23:18.0

Homepage: null

Size: 3

Language: Shell

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README

Docker working in a Docker

Somtimes we all need to use docker in a docker. For this purpose this image was prepared and it's using latest version of docker from official repo. Docker Compose is installed too.

Basic usage

docker run \
  --name docker \
  -d \
  --privileged \
  million12/docker

Custom port usage

docker run \
  --name docker \
  -d \
  -e DOCKER_PORT=12345 \
  -p 12345:12345 \
  --privileged \
  million12/docker

make sure to use -p option which exports custom port to host machine
note: This image need to be run with --privileged option

Environmental Variables

DOCKER_PORT - Specify on which port docker daemon should listen.

Docker troubleshooting

Use docker command to see if all required containers are up and running:

cker ps

Check logs of docker container:

cker logs docker

Sometimes you might just want to review how things are deployed inside a running container, you can do this by executing a bash shell through docker's exec command:

er exec -ti docker /bin/bash

History of an image and size of layers:

er history --no-trunc=true million12/docker | tr -s ' ' | tail -n+2 | awk -F " ago " '{print $2}'

Author

Author: Przemyslaw Ozgo (linux@ozgo.info)

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