feat(18): not really working docker images

18-expenses-chart/flake.nix

@@ -1,5 +1,5 @@
 rec {
-  description = "templ-practice";
+  description = "expenses chart exercise";
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs";
     flake-utils.url = "github:numtide/flake-utils";
@@ -11,7 +11,55 @@ rec {
       let
         pkgs = nixpkgs.legacyPackages.${system};
         templPkg = templ.packages.${system}.templ;
-      in {
+        pname = "expenses-chart";
+        version = "0.0.1";
+      in rec {
+        thePackage = pkgs.buildGoModule {
+          inherit pname version;
+          src = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
+          vendorHash = "sha256-sKuP3TsRD3MXBGtdSRnX62eXBQE1ASWFQu0kLlXSlFA=";
+
+          preBuild = ''
+            # Adding the Tailwind build step to preBuild
+            ${pkgs.nodePackages.tailwindcss}/bin/tailwindcss -i ./input.css -o static/output.css
+            # Adding generation of go code from templ files
+            ${templPkg}/bin/templ generate
+          '';
+
+        };
+        packages = rec {
+          "${pname}" = thePackage;
+          "${pname}-image" = pkgs.dockerTools.buildLayeredImage {
+            name = pname;
+            tag = "latest";
+            created = "now";
+            config = {
+              Cmd = [ "${thePackage}/bin/templ-exercise" ];
+              ExposedPorts = { "3000/tcp" = { }; };
+            };
+          };
+          image-hello = pkgs.dockerTools.buildLayeredImage { # so, wow, this works
+            name = pname;
+            tag = "latest";
+            config.Cmd = [ "${pkgs.hello}/bin/hello" ];
+          };
+
+          image = pkgs.dockerTools.buildImage {
+            name = pname;
+            tag = "latest";
+            created = "now";
+            copyToRoot = pkgs.buildEnv {
+              name = "image-root";
+              paths = [ thePackage pkgs.dockerTools.binSh pkgs.coreutils ];
+              pathsToLink = [ "/bin" "/dist" "/public" ];
+            };
+            config = {
+              Cmd = [ "/bin/templ-exercise" ];
+              ExposedPorts = { "8080/tcp" = { }; };
+            };
+          };
+
+        };
         devShells.default = pkgs.mkShell {
           buildInputs = [
             pkgs.go
@@ -20,7 +68,7 @@ rec {
             pkgs.gopls
             pkgs.gnumake
             templPkg
-            pkgs.tailwindcss
+            pkgs.nodePackages.tailwindcss
           ];
           shellHook = ''
             export GOPATH=$PWD/.go

18-expenses-chart/notes.org

@@ -74,3 +74,34 @@ because then if parent would want to have child take up all space - negative pad
 
 *** allright, @ to include sub templates
 
+** well, last part? preparing the docker container for deployment on Render.com?
+
+which port should be used?
+also, this would be first time i'll add templ as a build step
+
+** for some reason image doesn't work well
+
+podman run -d -p 9090:8080 localhost/expenses-chart:latest  /nix/store/l4r6glmzbvkhg97lp4dn7nm76w6hz41g-expenses-chart-0.0.1/bin/temp-exercise 
+
+this runs,
+but podman run -it expenses-chart:latest 
+Error: crun: executable file `/nix/store/l4r6glmzbvkhg97lp4dn7nm76w6hz41g-expenses-chart-0.0.1/bin/templ-exercise` not found in $PATH: No such file or directory: OCI runtime attempted to invoke a command that was not found
+
+oh, well
+
+** you know what - i give up
+
+for some reason when i open url to app running in container,
+and it's on the 8080 port of the host machine - the static files are served
+
+if i use any other port of local machine, to forward into container,
+the static files are not served
+
+maybe this is bug in go? i don't know
+StripPrefix doesn't seem to do anything
+
+and for some reason in this specific exercise CMD doesn't work in the container
+so let's just give up!
+
+i could try to write a docker file and check with that, but yeah
+