Docker: Difference between revisions

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 == Docker Compose with Nix ==
-[https://docs.hercules-ci.com/arion/ Arion] is optimized for running Nix-based projects in Docker Compose. It uses the NixOS module system for configuration, it can bypass <code>docker build</code> and lets you use dockerTools or use the store directly in the containers. The images/containers can be typical dockerTools style images or full NixOS configs.
+[https://docs.hercules-ci.com/arion/ Arion] is created for running Nix-based projects in Docker Compose. It uses the NixOS module system for configuration, it can bypass <code>docker build</code> and lets you use dockerTools or use the store directly in the containers. The images/containers can be typical dockerTools style images or full NixOS configs.
+To use Arion, you first need to add its module to you NixOS configuration:
+  modules = [ arion.nixosModules.arion ];
+After that you can access its options under
+  virtualisation.arion = {}
+A config for a simple container could look like this:
+  virtualisation.arion = {
+    backend = "docker";
+    projects = {
+      "db" = settings.services."db".service = {
+        image = "";
+        restart = "unless-stopped";
+        environment = { POSTGRESS_PASSWORD = "password"; };
+      };
+    };
+  };
 == See also ==