Question 84585 in Docker Question posted in
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Docker postgresql container IP address changes whenever it restarts

$ docker run -d 
    --name some-postgres 
    -e POSTGRES_USER=postgres 
    -e POSTGRES_PASSWORD=mysecretpassword 
    -p 5432:5432 
    postgres

I build postgresql container like above. Then when try to access Postgresql server. I always set the IP address like this in Python with Flask-SQLAlchemy:

app.config['SQLALCHEMY_DATABASE_URI'] = postgresql://postgres:[email protected]:5432/some_db_name'

instead of writing "host.docker.internal" can I set the IP address as static one?

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2

Answers


  1. 0

    You need to create a custom network:

    docker network create --subnet=172.18.0.0/16 customnet

    then, run the container

    docker run -d 
--name some-postgres 
-e POSTGRES_USER=postgres 
-e POSTGRES_PASSWORD=mysecretpassword 
-p 5432:5432 
--net customnet
--ip 172.18.0.33
postgres
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  2. 0

    You can also choose the IP addresses for the container with –ip and –ip6 flags when you start the container on a user-defined network. See Connect a container to a network

    Example:

    $ docker run -itd --network=my-net --ip=10.10.9.75 busybox

    If you never created a docker network, also check out docker network create.

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