docker-phoenix.ex

# prod.ex
config :mobil, Mobil.Endpoint,
  secret_key_base: System.get_env("PHOENIX_SECRET")

# Finally import the config/prod.secret.exs
# which should be versioned separately.
config :mobil, Mobil.Repo,
  adapter: Ecto.Adapters.Postgres,
  host: "db",
  username: "postgres", #System.get_env("DB_ENV_user"),
  password: "", #System.get_env("DB_ENV_password"),
  database: "mobil_prod",
  pool_size: 20


# When running docker.
web_1 | ** (exit) exited in: GenServer.call(#PID<0.163.0>, {:query, "CREATE TABLE IF NOT EXISTS \"schema_migrations\" (\"version\" bigint PRIMARY KEY, \"inserted_at\" timestamp)", []}, :infinity)
web_1 |     ** (EXIT) %Postgrex.Error{message: "tcp connect: econnrefused", postgres: nil}
web_1 |     (elixir) lib/gen_server.ex:356: GenServer.call/3
web_1 |     (postgrex) lib/postgrex/connection.ex:102: Postgrex.Connection.query/4
web_1 |     (ecto) lib/ecto/adapters/postgres/connection.ex:31: Ecto.Adapters.Postgres.Connection.query/4
web_1 |     (ecto) lib/ecto/adapters/sql.ex:243: Ecto.Adapters.SQL.query/7
web_1 |     (ecto) lib/ecto/pool.ex:159: Ecto.Pool.do_run/4
web_1 |     (ecto) lib/ecto/adapters/sql.ex:231: Ecto.Adapters.SQL.query/6
web_1 |     (ecto) lib/ecto/adapters/sql.ex:209: Ecto.Adapters.SQL.query/5
web_1 |     (ecto) lib/ecto/adapters/sql.ex:170: Ecto.Adapters.SQL.query!/5


# When running IEX, inside web_1 container.
iex(1)> {:ok, pid} = Postgrex.Connection.start_link(hostname: "db", username: "postgres", password: "", database: "postgres")
{:ok, #PID<0.219.0>}