Added (commented out) command overrides which can enable admin commands (for admin REST api).

docker-compose.yml

@@ -10,6 +10,13 @@ services:
       - storage.tsdb.path=/prometheus
       - web.console.libraries=/usr/share/prometheus/console_libraries
       - web.console.templates=/usr/share/prometheus/consoles
+#    # uncomment to override commands and to add enable admin
+#    command:
+#      - "--config.file=/etc/prometheus/prometheus.yml"
+#      - "--storage.tsdb.path=/prometheus"
+#      - "--web.console.libraries=/usr/share/prometheus/console_libraries"
+#      - "--web.console.templates=/usr/share/prometheus/consoles"
+#      - "--web.enable-admin-api"
     volumes:
       - ./prometheus.yml:/etc/prometheus/prometheus.yml
       - prom-data:/prometheus