diff --git a/docker-compose.yml b/docker-compose.yml
index dd9c7e1..f5f5245 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,14 +1,8 @@
 version: '3'
 
 volumes:
-  prometheus-config:
-    external:
-      name: prometheus-config
-  prometheus-data:
-  grafana-data:
-  alertmanager-config:
-    external:
-      name: alertmanager-config
+    prometheus_data: {}
+    grafana_data: {}
 
 networks:
   front-tier:
@@ -19,14 +13,19 @@ services:
     image: prom/prometheus
     container_name: prometheus
     volumes:
-      - prometheus-config:/etc/prometheus/
-      - prometheus-data:/prometheus
+      - ./prometheus/:/etc/prometheus/
+      - prometheus_data:/prometheus
     command:
       - '-config.file=/etc/prometheus/prometheus.yml'
       - '-storage.local.path=/prometheus'
       - '-alertmanager.url=http://alertmanager:9093'
+    expose:
+      - 9090
     ports:
       - 9090:9090
+    links:
+      - cadvisor:cadvisor
+      - alertmanager:alertmanager
     depends_on:
       - cadvisor
     networks:
@@ -34,29 +33,35 @@ services:
     deploy:
       placement:
         constraints:
-          - node.role == manager
-          - node.hostname == node1
+          - node.hostname == <hostname where the prometheus config file in>
   node-exporter:
+    container_name: node-exporter
     image: prom/node-exporter
     volumes:
       - /proc:/host/proc:ro
       - /sys:/host/sys:ro
       - /:/rootfs:ro
     command: '-collector.procfs=/host/proc -collector.sysfs=/host/sys -collector.filesystem.ignored-mount-points="^(/rootfs|/host|)/(sys|proc|dev|host|etc)($$|/)" collector.filesystem.ignored-fs-types="^(sys|proc|auto|cgroup|devpts|ns|au|fuse\.lxc|mqueue)(fs|)$$"'
+    expose:
+      - 9100
     networks:
       - back-tier
     deploy:
-  # alertmanager:
-  #   image: prom/alertmanager
-  #   ports:
-  #     - 9093:9093
-  #   volumes:
-  #     - alertmanager-config:/etc/alertmanager/
-  #   networks:
-  #     - back-tier
-  #   command:
-  #     - '-config.file=/etc/alertmanager/config.yml'
-  #     - '-storage.path=/alertmanager'
+  alertmanager:
+    image: prom/alertmanager
+    ports:
+      - 9093:9093
+    volumes:
+      - ./alertmanager/:/etc/alertmanager/
+    networks:
+      - back-tier
+    command:
+      - '-config.file=/etc/alertmanager/config.yml'
+      - '-storage.path=/alertmanager'
+    deploy:
+      placement:
+        constraints:
+          - node.hostname == <hostname where alertmanager config file in>
   cadvisor:
     image: google/cadvisor
     volumes:
@@ -64,10 +69,13 @@ services:
       - /var/run:/var/run:rw
       - /sys:/sys:ro
       - /var/lib/docker/:/var/lib/docker:ro
+    expose:
+      - 8080
     networks:
       - back-tier
     deploy:
       mode: global
+
   grafana:
     image: grafana/grafana
     depends_on:
@@ -75,9 +83,9 @@ services:
     ports:
       - 3000:3000
     volumes:
-      - grafana-data:/var/lib/grafana
+      - grafana_data:/var/lib/grafana
     env_file:
       - config.monitoring
     networks:
       - back-tier
-      - front-tier
+      - front-tier
\ No newline at end of file