Add the monitoring stack

kubernetes/promtail/daemonset.yaml

@@ -0,0 +1,93 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: promtail
+  namespace: monitoring
+  labels:
+    app: promtail
+spec:
+  selector:
+    matchLabels:
+      app: promtail
+  template:
+    metadata:
+      labels:
+        app: promtail
+    spec:
+      serviceAccountName: promtail
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: promtail
+          image: grafana/promtail:2.9.2
+          args:
+            - "-config.file=/etc/promtail/promtail.yaml"
+          env:
+            - name: HOSTNAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+          ports:
+            - name: http
+              containerPort: 3101
+              protocol: TCP
+          resources:
+            requests:
+              memory: "50Mi"
+              cpu: "50m"
+            limits:
+              memory: "128Mi"
+              cpu: "100m"
+          securityContext:
+            readOnlyRootFilesystem: true
+            runAsUser: 0
+            runAsGroup: 0
+          volumeMounts:
+            - name: config
+              mountPath: /etc/promtail
+            - name: run
+              mountPath: /run/promtail
+            # Mount pod logs
+            - name: pods
+              mountPath: /var/log/pods
+              readOnly: true
+            # Mount container logs (for CRI-O / containerd)
+            - name: containers
+              mountPath: /var/log/containers
+              readOnly: true
+            # Machine-id for consistent instance identification
+            - name: machine-id
+              mountPath: /etc/machine-id
+              readOnly: true
+          readinessProbe:
+            httpGet:
+              path: /ready
+              port: http
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /ready
+              port: http
+            initialDelaySeconds: 10
+            periodSeconds: 10
+      volumes:
+        - name: config
+          configMap:
+            name: promtail-config
+        - name: run
+          emptyDir: {}
+        - name: pods
+          hostPath:
+            path: /var/log/pods
+        - name: containers
+          hostPath:
+            path: /var/log/containers
+        - name: machine-id
+          hostPath:
+            path: /etc/machine-id