diff --git a/deployment/backend/backend.yaml b/deployment/backend/backend.yaml
index 22c10c7..43a145d 100644
--- a/deployment/backend/backend.yaml
+++ b/deployment/backend/backend.yaml
@@ -13,6 +13,8 @@ spec:
             labels:
                 app: backend
         spec:
+            nodeSelector:
+                kubernetes.io/role: worker
             containers:
                 - name: backend
                   image: yoshiunfriendly/backend-hideyoshi.com
diff --git a/deployment/frontend/frontend.yaml b/deployment/frontend/frontend.yaml
index 883ebe7..f4f62d4 100644
--- a/deployment/frontend/frontend.yaml
+++ b/deployment/frontend/frontend.yaml
@@ -15,6 +15,8 @@ spec:
             labels:
                 app: frontend
         spec:
+            nodeSelector:
+                kubernetes.io/role: worker
             containers:
                 - name: frontend
                   image: yoshiunfriendly/frontend-hideyoshi.com:latest
diff --git a/deployment/postgres/cn-cluster.yaml b/deployment/postgres/cn-cluster.yaml
index 612ae76..0c75a78 100644
--- a/deployment/postgres/cn-cluster.yaml
+++ b/deployment/postgres/cn-cluster.yaml
@@ -19,5 +19,9 @@ spec:
             memory: "128Mi"
             cpu: "75m"
 
+    affinity:
+        nodeSelector:
+            kubernetes.io/role: master
+
     monitoring:
         enablePodMonitor: true
diff --git a/deployment/storage/storage-processor.yaml b/deployment/storage/storage-processor.yaml
index a9b270c..4dc680e 100644
--- a/deployment/storage/storage-processor.yaml
+++ b/deployment/storage/storage-processor.yaml
@@ -13,6 +13,8 @@ spec:
             labels:
                 app: storage-processor
         spec:
+            nodeSelector:
+                kubernetes.io/role: worker
             containers:
                 - name: storage-processor
                   image: yoshiunfriendly/storage-hideyoshi.com:latest
diff --git a/deployment/storage/storage.yaml b/deployment/storage/storage.yaml
index e0bab28..fe3c216 100644
--- a/deployment/storage/storage.yaml
+++ b/deployment/storage/storage.yaml
@@ -13,6 +13,8 @@ spec:
             labels:
                 app: storage
         spec:
+            nodeSelector:
+                kubernetes.io/role: worker
             containers:
                 - name: storage
                   image: yoshiunfriendly/storage-hideyoshi.com:latest