Adding support for k3s

README.md

@@ -134,7 +134,7 @@ More than one smarter-device-manager can be used in a single node if required if
 
 *Enabling access*
 
-A few examples of yaml files are provided that enables the smarter-device-manager to be deployed in a node. The file smarter-device-management-pod.yaml deploys a single pod on a node, it is useful for testing. The file smarter-device-manager.yaml provides aq deamonSet configuration that enables pods to be deployed in any node that contains the "smarter-device-manager=enabled" label. The following command inserts the daemonSet in Kubernetes.
+A few examples of yaml files are provided that enables the smarter-device-manager to be deployed in a node. The file smarter-device-management-pod-<>.yaml deploys a single pod on a node, it is useful for testing. The file smarter-device-manager-<>.yaml provides aq deamonSet configuration that enables pods to be deployed in any node that contains the "smarter-device-manager=enabled" label. The following command inserts the daemonSet in Kubernetes. K3s and K8s put the unix sockets for the device plugin in different directories on the node so the *-k8s.yaml files should be used on Kubernetes and the *-k3s.yaml should be used on K3s.
 ```
 kubectl apply -f smarter-device-manager.yaml
 ```

smarter-device-management-pod-k3s.yaml

@@ -0,0 +1,43 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: smarter-device-management
+  namespace: default
+spec:
+  # Mark this pod as a critical add-on; when enabled, the critical add-on
+  # scheduler reserves resources for critical add-on pods so that they can
+  # be rescheduled after a failure.
+  # See https://kubernetes.io/docs/tasks/administer-cluster/guaranteed-scheduling-critical-addon-pods/
+  priorityClassName: "system-node-critical"
+  hostNetwork: true
+  dnsPolicy: ClusterFirstWithHostNet
+  hostname: smarter-device-management
+  nodeName: <replace with node to run>
+  containers:
+  - name: smarter-device-manager
+    image: registry.gitlab.com/arm-research/smarter/smarter-device-manager/smarter-device-manager:20191204204613
+    imagePullPolicy: IfNotPresent
+    securityContext:
+      allowPrivilegeEscalation: false
+      capabilities:
+        drop: ["ALL"]
+    resources:
+      limits:
+        cpu: 100m
+        memory: 10Mi
+      requests:
+        cpu: 10m
+        memory: 10Mi
+    volumeMounts:
+      - name: device-plugin
+        mountPath: /var/lib/kubelet/device-plugins
+      - name: dev-dir
+        mountPath: /dev
+  volumes:
+    - name: device-plugin
+      hostPath:
+        path: /var/lib/rancher/k3s/agent/kubelet/device-plugins
+    - name: dev-dir
+      hostPath:
+            path: /dev
+      terminationGracePeriodSeconds: 30

smarter-device-manager-k3s.yaml

@@ -0,0 +1,64 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: < Replace with the namespace to use >
+  labels:
+    name: < Replace with the namespace to use >
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: smarter-device-manager
+  namespace: < Replace with the namespace to use >
+  labels:
+    name: smarter-device-manager
+    role: agent
+spec:
+  selector:
+    matchLabels:
+      name: smarter-device-manager
+  updateStrategy:
+    type: RollingUpdate
+  template:
+    metadata:
+      labels: 
+        name: smarter-device-manager
+      annotations:
+        node.kubernetes.io/bootstrap-checkpoint: "true"
+    spec: 
+      nodeSelector:
+        smarter-device-manager : enabled
+      priorityClassName: "system-node-critical"
+      hostname: smarter-device-management
+      hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
+      imagePullSecrets:
+      - name: k8sedgeregcred
+      containers:
+      - name: smarter-device-manager
+        image: registry.gitlab.com/arm-research/smarter/smarter-device-manager/smarter-device-manager:20191204204613
+        imagePullPolicy: IfNotPresent
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop: ["ALL"]
+        resources:
+          limits:
+            cpu: 100m
+            memory: 15Mi
+          requests:
+            cpu: 10m
+            memory: 15Mi
+        volumeMounts:
+          - name: device-plugin
+            mountPath: /var/lib/kubelet/device-plugins
+          - name: dev-dir
+            mountPath: /dev
+      volumes:
+        - name: device-plugin
+          hostPath:
+            path: /var/lib/rancher/k3s/agent/kubelet/device-plugins
+        - name: dev-dir
+          hostPath:
+            path: /dev
+      terminationGracePeriodSeconds: 30