feat: add keycloak and postgres

keycloak/scripts/user-exists.ts

@@ -0,0 +1,57 @@
+import KcAdminClient from "@keycloak/keycloak-admin-client";
+import invariant from "tiny-invariant";
+
+const main = async () => {
+  const keycloakHost = process.env.KEYCLOAK_HOST;
+  invariant(keycloakHost, "KEYCLOAK_HOST environment variable is required.");
+
+  const adminUsername = process.env.KEYCLOAK_ADMIN_USER;
+  invariant(adminUsername, "KEYCLOAK_ADMIN_USER environment variable is required.");
+
+  const adminPassword = process.env.KEYCLOAK_ADMIN_PASSWORD;
+  invariant(adminPassword, "KEYCLOAK_ADMIN_PASSWORD environment variable is required");
+
+  const realmName = process.env.KEYCLOAK_REALM;
+  invariant(realmName, "KEYCLOAK_REALM environment variable is required");
+
+  const username = process.env.USERNAME;
+  invariant(username, "USERNAME environment variable is required");
+
+  const kcAdminClient = new KcAdminClient({
+    baseUrl: `https://${keycloakHost}`,
+    realmName: "master",
+  });
+
+  try {
+    await kcAdminClient.auth({
+      username: adminUsername,
+      password: adminPassword,
+      grantType: "password",
+      clientId: "admin-cli",
+    });
+    console.log("Authentication successful.");
+
+    kcAdminClient.setConfig({ realmName });
+
+    const users = await kcAdminClient.users.find({
+      username,
+      exact: true,
+    });
+
+    if (users && users.length > 0) {
+      console.log(`User '${username}' exists with ID: ${users[0].id}`);
+      // eslint-disable-next-line unicorn/no-process-exit
+      process.exit(0);
+    } else {
+      console.log(`User '${username}' does not exist.`);
+      // eslint-disable-next-line unicorn/no-process-exit
+      process.exit(1);
+    }
+  } catch (error) {
+    console.error("Error checking user existence:", error);
+    // eslint-disable-next-line unicorn/no-process-exit
+    process.exit(1);
+  }
+};
+
+main();