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299 lines
6.3 KiB
ReStructuredText
299 lines
6.3 KiB
ReStructuredText
Hasura GraphQL Engine DigitalOcean One-click App
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================================================
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Hasura GraphQL Engine is available as a One-click app on DigitalOcean. It is
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packed with a Postgres database and `Caddy <https://caddyserver.com/>`__
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webserver for easy and automatic HTTPS using Let's Encrypt.
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Quickstart
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----------
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1. Create Hasura One-click Droplet
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Create a new droplet and choose Hasura GraphQL Engine under One-click apps while
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choosing the image.
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2. Open console
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~~~~~~~~~~~~~~~
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Once Hasura GraphQL Engine One-Click Droplet is ready, you can visit the Droplet
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IP to open Hasura console, where you can create tables, explore GraphQL APIs
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etc. Note that it might take 1 or 2 minutes for everything to start running.
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The Hasura console will be at:
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.. code-block:: bash
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http://your_droplet_ip/console
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The GraphQL Endpoint will be:
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.. code-block:: bash
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http://your_droplet_ip/v1alpha1/graphql
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A Postgres database is also provisioned on the Droplet. Using the console, you
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can create a table on this Postgres instance and make your first GraphQL query.
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.. image:: https://graphql-engine-cdn.hasura.io/heroku-repo/assets/hasura_console.png
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:alt: Hasura console
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3. Create a table
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~~~~~~~~~~~~~~~~~
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Navigate to ``Data -> Create table`` on the console and create a table called ``profile`` with the following columns:
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``profile``
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=============== ========
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column name type
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=============== ========
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``id`` Integer (auto-increment)
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``name`` Text
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=============== ========
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Choose ``id`` as the Primary key and click the ``Create`` button.
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.. image:: https://graphql-engine-cdn.hasura.io/heroku-repo/assets/hasura_create_table.png
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:alt: Hasura console - create table
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4. Insert sample data
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~~~~~~~~~~~~~~~~~~~~~
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Once the table is created, go to the ``Insert Row`` tab and insert some sample rows:
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.. code-block:: bash
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Thor
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Iron Man
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Hulk
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Captain America
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Black Widow
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.. image:: https://graphql-engine-cdn.hasura.io/heroku-repo/assets/hasura_insert_row.png
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:alt: Hasura console - insert data
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5. Try out GraphQL
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~~~~~~~~~~~~~~~~~~
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Switch to the ``GraphiQL`` tab on top and execute the following GraphQL query:
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.. code-block:: graphql
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query {
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profile {
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id
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name
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}
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}
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.. image:: https://graphql-engine-cdn.hasura.io/heroku-repo/assets/hasura_graphql_query.png
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:alt: Hasura console - GraphiQL
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Secure the GraphQL endpoint
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---------------------------
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By default Hasura is exposed without any access key. Anyone can read and write
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to your database using GraphQL. When deploying to production, you should secure
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the endpoint by adding an access key and then setting up permission rules on
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tables.
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To add an access key, follow the steps given below:
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1. Connect to the Droplet via SSH:
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.. code-block:: bash
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ssh root@your_droplet_ip
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2. Goto ``/etc/hasura`` directory:
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.. code-block:: bash
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cd /etc/hasura
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3. Edit ``docker-compose.yaml`` and un-comment the line that mentions access key.
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Also change it to some unique secret:
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.. code-block:: bash
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vim docker-compose.yaml
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...
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# un-comment next line to add an access key
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HASURA_GRAPHQL_ACCESS_KEY: mysecretaccesskey
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...
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# type ESC followed by :wq to save and quit
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4. Update the container:
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.. code-block:: bash
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docker-compose up -d
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That's it. Visit the console at ``http://your_droplet_ip/console`` and it should
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prompt for the access key. Further API requests can be made by adding the
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following header:
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.. code-block:: bash
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X-Hasura-Access-Key: mysecretaccesskey
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Adding a domain & Enabling HTTPS
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--------------------------------
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If you own a domain, you can enable HTTPS on this Droplet by mapping the domain
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to the Droplet IP. The One-Click Droplet is configured with Caddy which is an
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HTTP/2 web server with automatic HTTPS using Let's Encrypt.
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1. Go to your domain's DNS dashboard and add an A record mapping the domain to the Droplet IP.
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2. Connect to the Droplet via SSH:
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.. code-block:: bash
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ssh root@your_droplet_ip
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3. Goto ``/etc/hasura`` directory:
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.. code-block:: bash
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cd /etc/hasura
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4. Edit ``Caddyfile`` and change ``:80`` to your domain:
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.. code-block:: bash
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vim Caddyfile
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...
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add_your-domain-here {
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proxy / graphql-engine:8080 {
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websocket
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}
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}
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...
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# type ESC followed by :wq to save and quit
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5. Restart the container:
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.. code-block:: bash
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docker-compose restart caddy
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Visit ``https://your_domain/console`` to visit the Hasura console.
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Updating to latest version
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--------------------------
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When a new version of GraphQL Engine is released, you can upgrade to it by just
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changing the version tag in docker-compose.yaml. You can find the latest
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releases in the GitHub releases page.
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1. Connect to the Droplet via SSH:
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.. code-block:: bash
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ssh root@your_droplet_ip
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2. Goto ``/etc/hasura`` directory:
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.. code-block:: bash
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cd /etc/hasura
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3. Edit ``docker-compose.yaml`` and change the image tag to the latest one:
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.. code-block:: bash
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vim docker-compose.yaml
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...
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graphql-engine:
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image: hasura/graphql-engine:latest_tag_here
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...
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# type ESC followed by :wq to save and quit
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4. Restart the container:
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.. code-block:: bash
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docker-compose up -d
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Using a different database
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--------------------------
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1. Connect to the Droplet via SSH:
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.. code-block:: bash
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ssh root@your_droplet_ip
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2. Goto ``/etc/hasura`` directory:
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.. code-block:: bash
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cd /etc/hasura
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3. Setup the database that you wish to use, preferably via Docker Compose
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4. Edit ``docker-compose.yaml`` and change the database URL:
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.. code-block:: bash
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vim docker-compose.yaml
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...
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# change the url to use a different database
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HASURA_GRAPHQL_DATABASE_URL: postgres://<new-database-url>/<new-database-name>
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...
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# type ESC followed by :wq to save and quit
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Logs
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----
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1. Connect to the Droplet via SSH:
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.. code-block:: bash
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ssh root@your_droplet_ip
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2. Goto ``/etc/hasura`` directory:
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.. code-block:: bash
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cd /etc/hasura
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3. To checks logs for any container, use the following command:
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.. code-block:: bash
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docker-compose logs <container_name>
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Where ``<container_name>`` is one of ``graphql-engine``, ``postgres`` or
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``caddy``.
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