veryroundbird.house
1{
2 description = "atproto github";
3
4 inputs = {
5 nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
6 indigo = {
7 url = "github:oppiliappan/indigo";
8 flake = false;
9 };
10 htmx-src = {
11 url = "https://unpkg.com/htmx.org@2.0.4/dist/htmx.min.js";
12 flake = false;
13 };
14 lucide-src = {
15 url = "https://github.com/lucide-icons/lucide/releases/download/0.483.0/lucide-icons-0.483.0.zip";
16 flake = false;
17 };
18 inter-fonts-src = {
19 url = "https://github.com/rsms/inter/releases/download/v4.1/Inter-4.1.zip";
20 flake = false;
21 };
22 ibm-plex-mono-src = {
23 url = "https://github.com/IBM/plex/releases/download/%40ibm%2Fplex-mono%401.1.0/ibm-plex-mono.zip";
24 flake = false;
25 };
26 gitignore = {
27 url = "github:hercules-ci/gitignore.nix";
28 inputs.nixpkgs.follows = "nixpkgs";
29 };
30 };
31
32 outputs = {
33 self,
34 nixpkgs,
35 indigo,
36 htmx-src,
37 lucide-src,
38 gitignore,
39 inter-fonts-src,
40 ibm-plex-mono-src,
41 }: let
42 supportedSystems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
43 forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
44 nixpkgsFor = forAllSystems (system:
45 import nixpkgs {
46 inherit system;
47 overlays = [self.overlays.default];
48 });
49 inherit (gitignore.lib) gitignoreSource;
50 in {
51 overlays.default = final: prev: let
52 goModHash = "sha256-SfyLSQa3g30PXCi/VQOm0cz372B6YdXE7xfBlhgCGec=";
53 buildCmdPackage = name:
54 final.buildGoModule {
55 pname = name;
56 version = "0.1.0";
57 src = gitignoreSource ./.;
58 subPackages = ["cmd/${name}"];
59 vendorHash = goModHash;
60 env.CGO_ENABLED = 0;
61 };
62 in {
63 indigo-lexgen = final.buildGoModule {
64 pname = "indigo-lexgen";
65 version = "0.1.0";
66 src = indigo;
67 subPackages = ["cmd/lexgen"];
68 vendorHash = "sha256-pGc29fgJFq8LP7n/pY1cv6ExZl88PAeFqIbFEhB3xXs=";
69 doCheck = false;
70 };
71
72 appview = with final;
73 final.pkgsStatic.buildGoModule {
74 pname = "appview";
75 version = "0.1.0";
76 src = gitignoreSource ./.;
77 postUnpack = ''
78 pushd source
79 mkdir -p appview/pages/static/{fonts,icons}
80 cp -f ${htmx-src} appview/pages/static/htmx.min.js
81 cp -rf ${lucide-src}/*.svg appview/pages/static/icons/
82 cp -f ${inter-fonts-src}/web/InterVariable*.woff2 appview/pages/static/fonts/
83 cp -f ${inter-fonts-src}/web/InterDisplay*.woff2 appview/pages/static/fonts/
84 cp -f ${ibm-plex-mono-src}/fonts/complete/woff2/IBMPlexMono-Regular.woff2 appview/pages/static/fonts/
85 ${pkgs.tailwindcss}/bin/tailwindcss -i input.css -o appview/pages/static/tw.css
86 popd
87 '';
88 doCheck = false;
89 subPackages = ["cmd/appview"];
90 vendorHash = goModHash;
91 env.CGO_ENABLED = 1;
92 stdenv = pkgsStatic.stdenv;
93 };
94
95 knotserver = with final;
96 final.pkgsStatic.buildGoModule {
97 pname = "knotserver";
98 version = "0.1.0";
99 src = gitignoreSource ./.;
100 nativeBuildInputs = [final.makeWrapper];
101 subPackages = ["cmd/knotserver"];
102 vendorHash = goModHash;
103 installPhase = ''
104 runHook preInstall
105
106 mkdir -p $out/bin
107 cp $GOPATH/bin/knotserver $out/bin/knotserver
108
109 wrapProgram $out/bin/knotserver \
110 --prefix PATH : ${pkgs.git}/bin
111
112 runHook postInstall
113 '';
114 env.CGO_ENABLED = 1;
115 };
116 knotserver-unwrapped = final.pkgsStatic.buildGoModule {
117 pname = "knotserver";
118 version = "0.1.0";
119 src = gitignoreSource ./.;
120 subPackages = ["cmd/knotserver"];
121 vendorHash = goModHash;
122 env.CGO_ENABLED = 1;
123 };
124 repoguard = buildCmdPackage "repoguard";
125 keyfetch = buildCmdPackage "keyfetch";
126 genjwks = buildCmdPackage "genjwks";
127 };
128 packages = forAllSystems (system: {
129 inherit
130 (nixpkgsFor."${system}")
131 indigo-lexgen
132 appview
133 knotserver
134 knotserver-unwrapped
135 repoguard
136 keyfetch
137 genjwks
138 ;
139 });
140 defaultPackage = forAllSystems (system: nixpkgsFor.${system}.appview);
141 formatter = forAllSystems (system: nixpkgsFor."${system}".alejandra);
142 devShells = forAllSystems (system: let
143 pkgs = nixpkgsFor.${system};
144 staticShell = pkgs.mkShell.override {
145 stdenv = pkgs.pkgsStatic.stdenv;
146 };
147 in {
148 default = staticShell {
149 nativeBuildInputs = [
150 pkgs.go
151 pkgs.air
152 pkgs.gopls
153 pkgs.httpie
154 pkgs.indigo-lexgen
155 pkgs.litecli
156 pkgs.websocat
157 pkgs.tailwindcss
158 pkgs.nixos-shell
159 ];
160 shellHook = ''
161 mkdir -p appview/pages/static/{fonts,icons}
162 cp -f ${htmx-src} appview/pages/static/htmx.min.js
163 cp -rf ${lucide-src}/*.svg appview/pages/static/icons/
164 cp -f ${inter-fonts-src}/web/InterVariable*.woff2 appview/pages/static/fonts/
165 cp -f ${inter-fonts-src}/web/InterDisplay*.woff2 appview/pages/static/fonts/
166 cp -f ${ibm-plex-mono-src}/fonts/complete/woff2/IBMPlexMono-Regular.woff2 appview/pages/static/fonts/
167 export TANGLED_OAUTH_JWKS="$(${pkgs.genjwks}/bin/genjwks)"
168 '';
169 env.CGO_ENABLED = 1;
170 };
171 });
172 apps = forAllSystems (system: let
173 pkgs = nixpkgsFor."${system}";
174 air-watcher = name:
175 pkgs.writeShellScriptBin "run"
176 ''
177 ${pkgs.air}/bin/air -c /dev/null \
178 -build.cmd "${pkgs.go}/bin/go build -o ./out/${name}.out ./cmd/${name}/main.go" \
179 -build.bin "./out/${name}.out" \
180 -build.stop_on_error "true" \
181 -build.include_ext "go"
182 '';
183 tailwind-watcher =
184 pkgs.writeShellScriptBin "run"
185 ''
186 ${pkgs.tailwindcss}/bin/tailwindcss -w -i input.css -o ./appview/pages/static/tw.css
187 '';
188 in {
189 watch-appview = {
190 type = "app";
191 program = ''${air-watcher "appview"}/bin/run'';
192 };
193 watch-knotserver = {
194 type = "app";
195 program = ''${air-watcher "knotserver"}/bin/run'';
196 };
197 watch-tailwind = {
198 type = "app";
199 program = ''${tailwind-watcher}/bin/run'';
200 };
201 });
202
203 nixosModules.appview = {
204 config,
205 pkgs,
206 lib,
207 ...
208 }:
209 with lib; {
210 options = {
211 services.tangled-appview = {
212 enable = mkOption {
213 type = types.bool;
214 default = false;
215 description = "Enable tangled appview";
216 };
217 port = mkOption {
218 type = types.int;
219 default = 3000;
220 description = "Port to run the appview on";
221 };
222 cookie_secret = mkOption {
223 type = types.str;
224 default = "00000000000000000000000000000000";
225 description = "Cookie secret";
226 };
227 };
228 };
229
230 config = mkIf config.services.tangled-appview.enable {
231 systemd.services.tangled-appview = {
232 description = "tangled appview service";
233 wantedBy = ["multi-user.target"];
234
235 serviceConfig = {
236 ListenStream = "0.0.0.0:${toString config.services.tangled-appview.port}";
237 ExecStart = "${self.packages.${pkgs.system}.appview}/bin/appview";
238 Restart = "always";
239 };
240
241 environment = {
242 TANGLED_DB_PATH = "appview.db";
243 TANGLED_COOKIE_SECRET = config.services.tangled-appview.cookie_secret;
244 };
245 };
246 };
247 };
248
249 nixosModules.knotserver = {
250 config,
251 pkgs,
252 lib,
253 ...
254 }: let
255 cfg = config.services.tangled-knotserver;
256 in
257 with lib; {
258 options = {
259 services.tangled-knotserver = {
260 enable = mkOption {
261 type = types.bool;
262 default = false;
263 description = "Enable a tangled knotserver";
264 };
265
266 appviewEndpoint = mkOption {
267 type = types.str;
268 default = "https://tangled.sh";
269 description = "Appview endpoint";
270 };
271
272 gitUser = mkOption {
273 type = types.str;
274 default = "git";
275 description = "User that hosts git repos and performs git operations";
276 };
277
278 openFirewall = mkOption {
279 type = types.bool;
280 default = true;
281 description = "Open port 22 in the firewall for ssh";
282 };
283
284 stateDir = mkOption {
285 type = types.path;
286 default = "/home/${cfg.gitUser}";
287 description = "Tangled knot data directory";
288 };
289
290 repo = {
291 scanPath = mkOption {
292 type = types.path;
293 default = cfg.stateDir;
294 description = "Path where repositories are scanned from";
295 };
296
297 mainBranch = mkOption {
298 type = types.str;
299 default = "main";
300 description = "Default branch name for repositories";
301 };
302 };
303
304 server = {
305 listenAddr = mkOption {
306 type = types.str;
307 default = "0.0.0.0:5555";
308 description = "Address to listen on";
309 };
310
311 internalListenAddr = mkOption {
312 type = types.str;
313 default = "127.0.0.1:5444";
314 description = "Internal address for inter-service communication";
315 };
316
317 secretFile = mkOption {
318 type = lib.types.path;
319 example = "KNOT_SERVER_SECRET=<hash>";
320 description = "File containing secret key provided by appview (required)";
321 };
322
323 dbPath = mkOption {
324 type = types.path;
325 default = "${cfg.stateDir}/knotserver.db";
326 description = "Path to the database file";
327 };
328
329 hostname = mkOption {
330 type = types.str;
331 example = "knot.tangled.sh";
332 description = "Hostname for the server (required)";
333 };
334
335 dev = mkOption {
336 type = types.bool;
337 default = false;
338 description = "Enable development mode (disables signature verification)";
339 };
340 };
341 };
342 };
343
344 config = mkIf cfg.enable {
345 environment.systemPackages = with pkgs; [git];
346
347 system.activationScripts.gitConfig = ''
348 mkdir -p "${cfg.repo.scanPath}"
349 chown -R ${cfg.gitUser}:${cfg.gitUser} \
350 "${cfg.repo.scanPath}"
351
352 mkdir -p "${cfg.stateDir}/.config/git"
353 cat > "${cfg.stateDir}/.config/git/config" << EOF
354 [user]
355 name = Git User
356 email = git@example.com
357 EOF
358 chown -R ${cfg.gitUser}:${cfg.gitUser} \
359 "${cfg.stateDir}"
360 '';
361
362 users.users.${cfg.gitUser} = {
363 isSystemUser = true;
364 useDefaultShell = true;
365 home = cfg.stateDir;
366 createHome = true;
367 group = cfg.gitUser;
368 };
369
370 users.groups.${cfg.gitUser} = {};
371
372 services.openssh = {
373 enable = true;
374 extraConfig = ''
375 Match User ${cfg.gitUser}
376 AuthorizedKeysCommand /etc/ssh/keyfetch_wrapper
377 AuthorizedKeysCommandUser nobody
378 '';
379 };
380
381 environment.etc."ssh/keyfetch_wrapper" = {
382 mode = "0555";
383 text = ''
384 #!${pkgs.stdenv.shell}
385 ${self.packages.${pkgs.system}.keyfetch}/bin/keyfetch \
386 -repoguard-path ${self.packages.${pkgs.system}.repoguard}/bin/repoguard \
387 -internal-api "http://${cfg.server.internalListenAddr}" \
388 -git-dir "${cfg.repo.scanPath}" \
389 -log-path /tmp/repoguard.log
390 '';
391 };
392
393 systemd.services.knotserver = {
394 description = "knotserver service";
395 after = ["network.target" "sshd.service"];
396 wantedBy = ["multi-user.target"];
397 serviceConfig = {
398 User = cfg.gitUser;
399 WorkingDirectory = cfg.stateDir;
400 Environment = [
401 "KNOT_REPO_SCAN_PATH=${cfg.repo.scanPath}"
402 "KNOT_REPO_MAIN_BRANCH=${cfg.repo.mainBranch}"
403 "APPVIEW_ENDPOINT=${cfg.appviewEndpoint}"
404 "KNOT_SERVER_INTERNAL_LISTEN_ADDR=${cfg.server.internalListenAddr}"
405 "KNOT_SERVER_LISTEN_ADDR=${cfg.server.listenAddr}"
406 "KNOT_SERVER_DB_PATH=${cfg.server.dbPath}"
407 "KNOT_SERVER_HOSTNAME=${cfg.server.hostname}"
408 ];
409 EnvironmentFile = cfg.server.secretFile;
410 ExecStart = "${self.packages.${pkgs.system}.knotserver}/bin/knotserver";
411 Restart = "always";
412 };
413 };
414
415 networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [22];
416 };
417 };
418
419 nixosConfigurations.knotVM = nixpkgs.lib.nixosSystem {
420 system = "x86_64-linux";
421 modules = [
422 self.nixosModules.knotserver
423 ({
424 config,
425 pkgs,
426 ...
427 }: {
428 virtualisation.memorySize = 2048;
429 virtualisation.diskSize = 10 * 1024;
430 virtualisation.cores = 2;
431 services.getty.autologinUser = "root";
432 environment.systemPackages = with pkgs; [curl vim git];
433 systemd.tmpfiles.rules = let
434 u = config.services.tangled-knotserver.gitUser;
435 g = config.services.tangled-knotserver.gitUser;
436 in [
437 "d /var/lib/knotserver 0770 ${u} ${g} - -" # Create the directory first
438 "f+ /var/lib/knotserver/secret 0660 ${u} ${g} - KNOT_SERVER_SECRET=38a7c3237c2a585807e06a5bcfac92eb39442063f3da306b7acb15cfdc51d19d"
439 ];
440 services.tangled-knotserver = {
441 enable = true;
442 server = {
443 secretFile = "/var/lib/knotserver/secret";
444 hostname = "localhost:6000";
445 listenAddr = "0.0.0.0:6000";
446 };
447 };
448 })
449 ];
450 };
451 };
452}