add docker-compose

README.md

@@ -36,6 +36,7 @@ $ docker run -ti --rm registry.gitlab.com/zimbatm/docker-nixpkgs/curl http://ifc
 | Image           | Description           |
 | ---             | ---                   |
 | curl            | CLI only              |
+| docker-compose  | CLI only              |
 | kubectl         | CLI only              |
 | kubernetes-helm | CLI only              |
 | nix             | nix with deps         |

docker-compose/default.nix

@@ -0,0 +1,20 @@
+{ dockerTools
+, cacert
+, docker-compose
+}:
+dockerTools.buildLayeredImage {
+  inherit (docker-compose) name;
+
+  contents = [
+    cacert
+    docker-compose
+  ];
+
+  config = {
+    Entrypoint = [ "/bin/docker-compose" ];
+    Env = [
+      "PATH=/bin"
+      "SSL_CERT_FILE=${cacert}/etc/ssl/certs/ca-bundle.crt"
+    ];
+  };
+}

overlay.nix

@@ -3,6 +3,13 @@ _: pkgs: {
   docker-nixpkgs = rec {
 
     curl = pkgs.callPackage ./curl {};
+    docker-compose = pkgs.callPackage ./docker-compose {
+      docker-compose =
+         # master
+         pkgs.docker-compose or
+         # 18.09
+         pkgs.python3Packages.docker_compose;
+    };
     kubectl = pkgs.callPackage ./kubectl {};
     kubernetes-helm = pkgs.callPackage ./kubernetes-helm {};
     nix = pkgs.callPackage ./nix {};