kubernetes doc

Containerization & Orchestration/Kubernetes/workloads/6-DaemonSet.md

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+# 🧩 DaemonSet in Kubernetes
+
+A **DaemonSet** ensures that a copy of a specific pod runs on **every (or some) node** in the cluster. It’s typically used for background system-level services like log collection, monitoring, or networking tools.
+
+---
+
+## 📌 Key Characteristics
+
+- Automatically deploys one pod per worker node.
+- Ensures the pod stays on each node as long as the DaemonSet exists.
+- Automatically adds pods to new nodes when they join the cluster.
+
+---
+
+## 📄 Example DaemonSet YAML
+
+Below is a simple DaemonSet example that deploys `nginx` to every node in the `web` namespace:
+
+```yaml
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: nginx
+  namespace: web
+  labels:
+    app: web-servers
+spec:
+  selector:
+    matchLabels:
+      app: web-servers
+  template:
+    metadata:
+      labels:
+        app: web-servers
+    spec:
+      containers:
+        - name: nginx
+          image: nginx:1.27
+````
+