feat(keycloak): add support for KC_LOG_LEVEL env variable

KC_LOG_LEVEL is defined in the [official docs](https://www.keycloak.org/server/all-config?q=log-level).

.env.example

@@ -322,6 +322,9 @@ KEYCLOAK_DOMAIN=
 KEYCLOAK_ADMIN=
 # Admin user login password. Defaults to "admin".
 KEYCLOAK_ADMIN_PASSWORD=
+# Configure the log level for Keycloak.
+# Possible values are "TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL" and "OFF". Default is "INFO".
+KC_LOG_LEVEL=
 # Keycloak Database username. Defaults to "keycloak".
 KC_DB_USERNAME=
 # Keycloak Database password. Defaults to "keycloak".

idm/ldap-keycloak.yml

@@ -96,6 +96,7 @@ services:
       KC_DB_USERNAME: ${KC_DB_USERNAME:-keycloak}
       KC_DB_PASSWORD: ${KC_DB_PASSWORD:-keycloak}
       KC_FEATURES: impersonation
+      KC_LOG_LEVEL: ${KC_LOG_LEVEL:-INFO}
       KC_PROXY_HEADERS: xforwarded
       KC_HTTP_ENABLED: true
       KEYCLOAK_ADMIN: ${KEYCLOAK_ADMIN:-kcadmin}

testing/external-keycloak.yml

@@ -32,6 +32,7 @@ services:
       KC_DB_USERNAME: ${KC_DB_USERNAME:-keycloak}
       KC_DB_PASSWORD: ${KC_DB_PASSWORD:-keycloak}
       KC_FEATURES: impersonation
+      KC_LOG_LEVEL: ${KC_LOG_LEVEL:-INFO}
       KC_PROXY_HEADERS: xforwarded
       KC_HTTP_ENABLED: true
       KEYCLOAK_ADMIN: ${KEYCLOAK_ADMIN:-kcadmin}