feat: impl static_user_provider (#739)

* feat: add MemUserProvider and impl auth

* feat: impl user_provider option in fe and standalone mode

* chore: add file impl for mem provider

* chore: remove mem opts

* chore: minor change

* chore: refac pg server to use user_provider as indicator for using pwd auth

* chore: fix test

* chore: extract common code

* chore: add unit test

* chore: rebase develop

* chore: add user provider to http server

* chore: minor rename

* chore: change to ref when convert to anymap

* chore: fix according to clippy

* chore: remove clone on startcommand

* chore: fix cr issue

* chore: update tempdir use

* chore: change TryFrom to normal func while parsing anymap

* chore: minor change

* chore: remove to_lowercase

src/servers/tests/postgres/mod.rs

@@ -22,6 +22,8 @@ use rand::rngs::StdRng;
 use rand::Rng;
 use rustls::client::{ServerCertVerified, ServerCertVerifier};
 use rustls::{Certificate, Error, ServerName};
+use servers::auth::user_provider::StaticUserProvider;
+use servers::auth::UserProviderRef;
 use servers::error::Result;
 use servers::postgres::PostgresServer;
 use servers::server::Server;
@@ -44,12 +46,19 @@ fn create_postgres_server(
             .build()
             .unwrap(),
     );
+    let user_provider: Option<UserProviderRef> = if check_pwd {
+        Some(Arc::new(
+            StaticUserProvider::try_from("cmd:test_user=test_pwd").unwrap(),
+        ))
+    } else {
+        None
+    };
+
     Ok(Box::new(PostgresServer::new(
         query_handler,
-        check_pwd,
         tls,
         io_runtime,
-        None,
+        user_provider,
     )))
 }