add kubectl and helm

README.md

@@ -34,7 +34,9 @@ $ docker run -ti --rm registry.gitlab.com/zimbatm/docker-nixpkgs/curl http://ifc
 
 | Image           | Description           |
 | ---             | ---                   |
-| curl         | just curl as an entrypoint |
+| curl            | CLI only              |
+| kubectl         | CLI only              |
+| kubernetes-helm | CLI only              |
 | nix             | nix with deps         |
 | nix-unstable    | nixUnstable with deps |
 

kubectl/default.nix

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

kubernetes-helm/default.nix

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

overlay.nix

@@ -1,14 +1,12 @@
 _: pkgs: {
+  # docker images must be lower-cased
   docker-nixpkgs = rec {
 
     curl = pkgs.callPackage ./curl {};
-
+    kubectl = pkgs.callPackage ./kubectl {};
+    kubernetes-helm = pkgs.callPackage ./kubernetes-helm {};
     nix = pkgs.callPackage ./nix {};
-
+    nix-unstable = nix.overrideAttrs (self: { nix = pkgs.nixUnstable; });
-    # docker images must be lower-cased
-    nix-unstable = nix.overrideAttrs (self: { 
-      nix = pkgs.nixUnstable;
-    });
 
   };
 }