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djangopostgresqldockerdocker-machine

Connect to docker container using IP

I'm running the next commands:

$ docker-machine ls
NAME      ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER        ERRORS
default   *        virtualbox   Running   tcp://192.168.99.100:2376           v17.06.2-ce   

$ docker-machine ip default
192.168.99.100

And I have some docker containers. Once of the is running django, other one postgres and a third one elastic search.

When I'm running my django container with:

# python manage.py runserver 0:8000

And it is working when I use the site:

localhost:8000/

But, is not available when I use: 192.168.99.100:8000 There, I have the browser message:

This site can’t be reached

192.168.99.100 refused to connect. Try: Checking the connection

The same happens for the postgres and elasticseach container.

Why my docker container is not applying the default docker-machine ip ?

Solution

  • It sounds like you have not told Docker to talk to your VM, and that your containers are running on your host machine.

    To resolve:

    1. Bring down your containers

    2. Run $ eval "$(docker-machine env default)" which sets the following environment variables:

      export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://x.x.x.x:2376"
export DOCKER_CERT_PATH="/Users/<yourusername>/.docker/machine/machines/default"
export DOCKER_MACHINE_NAME="default"

      This tells Docker how to talk to your VM.

    3. Spin containers back up