fix(striker-ui-api): apply getent to resolve uid:gid

striker-ui-api/src/lib/consts/PROCESS_OWNER.ts

@@ -1,2 +1,5 @@
-export const PUID = process.env.PUID ?? 'striker-ui-api';
-export const PGID = process.env.PGID ?? PUID;
+import { resolveGid, resolveUid } from '../shell';
+
+export const PUID = resolveUid(process.env.PUID ?? 'striker-ui-api');
+
+export const PGID = resolveGid(process.env.PGID ?? PUID);

striker-ui-api/src/lib/consts/SERVER_PATHS.ts

@@ -14,6 +14,7 @@ const EMPTY_SERVER_PATHS: ServerPath = {
   usr: {
     bin: {
       date: {},
+      getent: {},
       mkfifo: {},
       openssl: {},
       psql: {},

striker-ui-api/src/lib/shell.ts

@@ -32,6 +32,9 @@ const systemCall = (
 export const date = (...args: string[]) =>
   systemCall(SERVER_PATHS.usr.bin.date.self, args);
 
+export const getent = (...args: string[]) =>
+  systemCall(SERVER_PATHS.usr.bin.getent.self, args);
+
 export const mkfifo = (...args: string[]) =>
   systemCall(SERVER_PATHS.usr.bin.mkfifo.self, args);
 
@@ -44,6 +47,13 @@ export const rm = (...args: string[]) =>
 export const uuidgen = (...args: string[]) =>
   systemCall(SERVER_PATHS.usr.bin.uuidgen.self, args);
 
+export const resolveId = (id: number | string, database: string) =>
+  Number.parseInt(getent(database, String(id)).split(':', 3)[2]);
+
+export const resolveGid = (id: number | string) => resolveId(id, 'group');
+
+export const resolveUid = (id: number | string) => resolveId(id, 'passwd');
+
 export const stderr = (message: string) => print(message, { stream: 'stderr' });
 
 export const stdout = (message: string) => print(message);