build: add docker images

nix/wordle-solver-docker.nix

@@ -0,0 +1,39 @@
+let
+  drv = {
+    buildEnv,
+    dockerTools,
+    wordle-solver,
+    runCommand,
+    ...
+  }:
+    dockerTools.buildImage {
+      name = "wordle-solver";
+      created = "now";
+      copyToRoot = buildEnv {
+        name = "image-root";
+        paths = [
+          wordle-solver
+          (runCommand "wordle-data" {} ''
+            mkdir -p $out/pwd
+            cp ${../valid-words.txt} $out/pwd/valid-words.txt
+            cp ${../answers.txt} $out/pwd/answers.txt
+          '')
+        ];
+        pathsToLink = ["/bin" "/pwd"];
+      };
+      config = {
+        Cmd = ["/bin/wordle-solver"];
+        WorkingDir = "/pwd";
+      };
+    };
+in {
+  perSystem = {
+    pkgs,
+    self',
+    ...
+  }: {
+    packages.wordle-solver-docker = pkgs.callPackage drv {
+      inherit (self'.packages) wordle-solver;
+    };
+  };
+}

nix/wordle-solver-wasm.nix

@@ -1,12 +1,14 @@
 {
   perSystem = {pkgs, ...}: let
     utils = import ./utils.nix;
+    rust-toolchain = utils.rust-toolchain pkgs;
     toolchain-crosspkgs = utils.toolchain-crosspkgs pkgs;
     drv = {
       rustPlatform,
       buildPackages,
       lld,
       name ? "wordle-solver",
+      removeReferencesTo,
       ...
     }:
       rustPlatform.buildRustPackage {
@@ -23,6 +25,7 @@
           buildPackages.stdenv.cc
           lld # Needed for wasm-ld
         ];
+        nativeBuildInputs = [removeReferencesTo];
 
         cargoBuildFlags = [
           "--lib"
@@ -31,17 +34,23 @@
         ];
 
         # Configure rustc for WASM
-        env = {
-          RUSTFLAGS = ''--cfg=web_sys_unstable_apis -C linker=wasm-ld'';
-        };
+        RUSTFLAGS = ''--cfg=web_sys_unstable_apis -C linker=wasm-ld -C strip=debuginfo -C debuginfo=0'';
 
         # Copy the WASM file to the output
         installPhase = ''
           mkdir -p $out/lib
           cp target/wasm32-unknown-unknown/release/*.wasm $out/lib/
+
+          runHook postInstall
+        '';
+
+        # Remove toolchain from closure (store paths are debug artifacts)
+        postInstall = ''
+          remove-references-to -t ${rust-toolchain} $out/lib/*.wasm
         '';
       };
   in {
+    packages.toolchain = rust-toolchain;
     packages.wordle-solver-wasm = toolchain-crosspkgs.callPackage drv {};
   };
 }

nix/wordle-solver-web-docker.nix

@@ -0,0 +1,69 @@
+let
+  drv = {
+    buildEnv,
+    dockerTools,
+    fakeNss,
+    nginx,
+    runCommand,
+    wordle-solver-web,
+    writeShellScriptBin,
+    ...
+  }:
+    dockerTools.buildImage {
+      name = "wordle-solver-web";
+      created = "now";
+      copyToRoot = buildEnv {
+        name = "image-root";
+        paths = [
+          nginx
+          (fakeNss.override {
+            extraGroupLines = [
+              "nogroup:x:65534:"
+            ];
+          })
+          (writeShellScriptBin "start" ''
+            echo "Start serving worlde-solver at port 80..."
+            /bin/nginx -c /etc/nginx.conf
+          '')
+          (runCommand "nginx-conf" {} ''
+            mkdir -p $out/etc
+
+            cat <<EOF > $out/etc/nginx.conf
+            events {}
+
+            error_log /dev/stderr;
+
+            http {
+                include ${nginx}/conf/mime.types;
+
+                server {
+                        listen 80;
+                        root ${wordle-solver-web};
+                        access_log /dev/stdout;
+                }
+            }
+
+            daemon off;
+            EOF
+          '')
+        ];
+        pathsToLink = ["/bin" "/etc"];
+      };
+      runAsRoot = ''
+        mkdir -p /var/log/nginx
+      '';
+      config = {
+        Cmd = ["/bin/start"];
+      };
+    };
+in {
+  perSystem = {
+    pkgs,
+    self',
+    ...
+  }: {
+    packages.wordle-solver-web-docker = pkgs.callPackage drv {
+      inherit (self'.packages) wordle-solver-web;
+    };
+  };
+}