How to start Phoenix by using PostgeSQL through container?

I’m tried:

$ alias psql="docker exec -ti pg-hello-phoenix sh -c 'exec psql -h localhost -p 5432 -U postgres'"
$ mix ecto.create

but got:

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  • ** (RuntimeError) could not find executable psql in path, please guarantee it is available before running ecto commands
    lib/ecto/adapters/postgres.ex:106: Ecto.Adapters.Postgres.run_with_psql/2
    lib/ecto/adapters/postgres.ex:83: Ecto.Adapters.Postgres.storage_up/1
    lib/mix/tasks/ecto.create.ex:34: anonymous fn/2 in Mix.Tasks.Ecto.Create.run/1
    (elixir) lib/enum.ex:604: Enum.”-each/2-lists^foreach/1-0-“/2
    (elixir) lib/enum.ex:604: Enum.each/2
    (mix) lib/mix/cli.ex:58: Mix.CLI.run_task/2
    (elixir) lib/code.ex:363: Code.require_file/2

    Also I tried to create symlink /usr/local/bin/psql:

    #!/usr/bin/env bash
    
    docker exec -ti pg-hello-phoenix sh -c "exec psql -h localhost -p 5432 -U postgres $@"
    

    and then:

    $ sudo chmod +x /usr/local/bin/psql
    

    check:

    $ which psql
    /usr/local/bin/psql
    $ psql --version
    psql (PostgreSQL) 9.5.1
    

    run again:

    $ mix ecto.create
    ** (Mix) The database for HelloPhoenix.Repo couldn't be created, reason given: cannot enable tty mode on non tty input
    .
    

    Container with PostgreSQL is launched:

    $ docker ps
    CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
    013464d7227e        postgres            "/docker-entrypoint.s"   47 minutes ago      Up 47 minutes       5432/tcp            pg-hello-phoenix
    

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  • 2 Solutions collect form web for “How to start Phoenix by using PostgeSQL through container?”

    To me I did the following:

    sudo docker exec -it postgres-db bash
    

    After I got the interactive shell

    psql -h localhost -p 5432 -U postgres
    

    Then I create my db manually:

    CREATE DATABASE cars_dev;
    

    Then finally:

    mix ecto.migrate
    

    Everything worked fine after that 🙂 hope it helps.

    I was able to do this by going into /config/.exs In my case it was development, so /config/dev.exs and left the hostname as localhost but added another setting for port: 32768 because that’s the port that docker exposed.

    Make sure to put a space between the port: and the number (not string). Otherwise it won’t work.

    Worked as usual after that. The natural assumption is that the username / password matches on the container as well.

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.