fix: pass env variables for LDAP configuration in `main_run`

src/main.rs

@@ -59,7 +59,10 @@ fn main_run(args: args::Run) -> ! {
     // Tarantool implicitly parses some environment variables.
     // We don't want them to affect the behavior and thus filter them out.
     for (k, _) in std::env::vars() {
-        if k.starts_with("TT_") || k.starts_with("TARANTOOL_") {
+        // NB: For the moment we'd rather allow LDAP-related variables,
+        // but see https://git.picodata.io/picodata/tarantool/-/issues/25.
+        let is_relevant = k.starts_with("TT_") || k.starts_with("TARANTOOL_");
+        if !k.starts_with("TT_LDAP") && is_relevant {
             std::env::remove_var(k)
         }
     }

test/int/test_ldap_env.py

+from conftest import Cluster, Instance
+import pytest
+
+TT_LDAP_URL = "ldap://localhost:1389"
+TT_LDAP_DN_FMT = "cn=$USER,ou=users,dc=example,dc=org"
+
+
+@pytest.fixture
+def instance(cluster: Cluster):
+    instance = cluster.add_instance(wait_online=False)
+    instance.env["TT_LDAP_URL"] = TT_LDAP_URL
+    instance.env["TT_LDAP_DN_FMT"] = TT_LDAP_DN_FMT
+    instance.start()
+    instance.wait_online()
+    return instance
+
+
+# Related: https://git.picodata.io/picodata/tarantool/-/issues/25
+def test_ldap_env_variables(instance: Instance):
+    res = instance.eval("return require('os').getenv('TT_LDAP_URL')")
+    assert res == TT_LDAP_URL
+    res = instance.eval("return require('os').getenv('TT_LDAP_DN_FMT')")
+    assert res == TT_LDAP_DN_FMT