[#117]: added kubernetes manifest for metrics collector service

Author: LorenzoTettamanti

core/src/testing/metrics.yaml

@@ -0,0 +1,96 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: cortexflow-metrics
+  namespace: cortexflow
+  labels:
+    app: cortexflow-metrics
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: cortexflow-metrics
+  template:
+    metadata:
+      labels:
+        app: cortexflow-metrics
+    spec:
+      hostPID: true
+      hostNetwork: true
+      containers:
+        - name: metrics
+          image: lorenzotettamanti/cortexflow-metrics:latest
+          command: ["/bin/bash", "-c"]
+          args:
+            - |
+              echo "Running on kernel $(uname -r)"
+              if [ ! -d "/sys/fs/bpf" ]; then
+                echo "ERROR: BPF filesystem not mounted"
+                exit 1
+              else
+                echo "Checking ebpf path..."
+                ls -l /sys/fs/bpf
+              fi
+              echo "checking privileges"
+              ls -ld /sys/fs/bpf
+
+              echo "Running application..."
+              exec /usr/local/bin/cortexflow-metrics || echo "Application exited with code $?"
+          volumeMounts:
+            - name: bpf
+              mountPath: /sys/fs/bpf
+              mountPropagation: Bidirectional
+              readOnly: false
+            - name: proc
+              mountPath: /host/proc
+              readOnly: false
+            - name: kernel-dev
+              mountPath: /lib/modules
+              readOnly: false
+          securityContext:
+            privileged: true
+            allowPrivilegeEscalation: true
+            capabilities:
+              add:
+                - SYS_ADMIN
+                - NET_ADMIN
+                - SYS_RESOURCE
+                - BPF
+                - SYS_PTRACE
+        - name: bpftool-control-manager
+          image: danielpacak/bpftool-runner:latest
+          command: ["/bin/bash", "-c","sleep infinity"]
+          volumeMounts:
+            - name: bpf
+              mountPath: /sys/fs/bpf
+              mountPropagation: Bidirectional
+              readOnly: false
+            - name: proc
+              mountPath: /host/proc
+              readOnly: false
+            - name: kernel-dev
+              mountPath: /lib/modules
+              readOnly: false
+          securityContext:
+            privileged: true
+            allowPrivilegeEscalation: true
+            capabilities:
+              add:
+                - SYS_ADMIN
+                - NET_ADMIN
+                - SYS_RESOURCE
+                - BPF
+                - SYS_PTRACE
+      volumes:
+        - name: bpf
+          hostPath:
+            path: /sys/fs/bpf
+            type: Directory
+        - name: proc
+          hostPath:
+            path: /proc
+            type: Directory
+        - name: kernel-dev
+          hostPath:
+            path: /lib/modules
+            type: Directory