.. meta::
   :description: Docker networking with Hasura
   :keywords: hasura, docs, deployment, network, docker

.. _docker_networking:

Docker networking 
=================

.. contents:: Table of contents
  :backlinks: none
  :depth: 2
  :local:

Introduction
------------

Sometimes you might want to connect Hasura running in Docker with APIs (e.g. auth webhooks, event triggers, remote schemas) that are either running outside of Docker or in a different Docker container.
Depending on the setting, the network config is different. This section shows how to connect in each of these use cases.

Network config
--------------

.. rst-class:: api_tabs
.. tabs::

  .. tab:: Linux

    .. list-table::
       :stub-columns: 1
       :header-rows: 1

       * - Connection
         - Config
         - Comment
       * - **Hasura to API (outside Docker)**
         - 1. With ``--net=host``, ``localhost:3000``
           2. Otherwise, ``<docker-bridge-ip>:3000``, e.g. ``172.17.0.1:3000``
         - 1. Assuming the API is running on port ``3000``
           2. The Docker bridge IP can be found via ``ifconfig``
       * - **API (outside Docker) to Hasura**
         - ``localhost:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both in docker-compose)**
         - service name, e.g.: ``api:3000``
         - Assuming the API is running on port ``3000``
       * - **API to Hasura (both in docker-compose)**
         - service name, e.g.: ``hasura:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``
       * - **API to Hasura (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``

  .. tab:: Mac

    .. list-table::
       :stub-columns: 1
       :header-rows: 1


       * - Connection
         - Config
         - Comment
       * - **Hasura to API (outside Docker)**
         - ``host.docker.internal:3000``
         - Assuming the API is running on port ``3000``
       * - **API (outside Docker) to Hasura**
         - ``localhost:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both in docker-compose)**
         - service name, e.g.: ``api:3000``
         - Assuming the API is running on port ``3000``
       * - **API to Hasura (both in docker-compose)**
         - service name, e.g.: ``hasura:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``
       * - **API to Hasura (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``


  .. tab:: Windows

    .. list-table::
       :stub-columns: 1
       :header-rows: 1

       * - Connection
         - Config
         - Comment
       * - **Hasura to API (outside Docker)**
         - ``host.docker.internal:3000``
         - Assuming the API is running on port ``3000``
       * - **API (outside Docker) to Hasura**
         - ``localhost:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both in docker-compose)**
         - service name, e.g.: ``api:3000``
         - Assuming the API is running on port ``3000``
       * - **API to Hasura (both in docker-compose)**
         - service name, e.g.: ``hasura:8080``
         - Hasura runs on port ``8080`` by default
       * - **Hasura to API (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``
       * - **API to Hasura (both running with separate docker run)**
         - Docker internal IP address
         - Can be obtained with ``docker inspect``

Advanced
--------

Learn more about Docker specific networking in the `Docker documentation <https://docs.docker.com/network/>`__.