feat: custom theme loading

compose.yml

@@ -11,6 +11,8 @@ services:
       - admin_password
       - db_password
     environment:
+      - CUSTOM_THEME_ENABLED
+      - CUSTOM_THEME_URL
       - DB_ADDR=db
       - DB_DATABASE=keycloak
       - DB_PASSWORD_FILE=/run/secrets/db_password
@@ -19,6 +21,11 @@ services:
       - KEYCLOAK_PASSWORD_FILE=/run/secrets/admin_password
       - KEYCLOAK_USER=${ADMIN_USERNAME}
       - PROXY_ADDRESS_FORWARDING=true
+    configs:
+      - source: entrypoint_conf
+        target: /docker-entrypoint.sh
+        mode: 0555
+    entrypoint: /docker-entrypoint.sh
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8080"]
       interval: 30s
@@ -75,3 +82,9 @@ secrets:
 
 volumes:
   mariadb:
+
+configs:
+  entrypoint_conf:
+    name: ${STACK_NAME}_entrypoint_conf_${ENTRYPOINT_CONF_VERSION}
+    file: entrypoint.sh.tmpl
+    template_driver: golang