WIP: Change GPU plugin NFD init container to run-time container

To work around kustomize inability to enforce correct init container,
and because this is more likely way how it will work once NFD drops
support for hooks:
kubernetes-sigs/node-feature-discovery#856

Signed-off-by: Eero Tamminen <[email protected]>

deployments/gpu_plugin/overlays/fake_devices/add-nfd-feature-file.yaml

@@ -0,0 +1,34 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+ name: intel-gpu-plugin
+spec:
+ template:
+ spec:
+ containers:
+ - name: intel-gpu-nfd
+ # convert generated sysfs content to NFD feature labels file
+ image: intel/intel-gpu-initcontainer:devel
+ imagePullPolicy: IfNotPresent
+ securityContext:
+ readOnlyRootFilesystem: true
+ allowPrivilegeEscalation: false
+ capabilities:
+ drop: [ "ALL" ]
+ volumeMounts:
+ - name: sysfs
+ # expects sysfs here
+ mountPath: /host-sys
+ readOnly: true
+ - name: nfd-features
+ mountPath: /nfd
+ readOnly: false
+ workingDir: /usr/local/bin/gpu-sw
+ # needed until GPU plugin drops NFD hook usage due to:
+ # https://github.com/kubernetes-sigs/node-feature-discovery/issues/856
+ command: ["sh", "-c", "while true; do ./intel-gpu-nfdhook | tee /nfd/fake-gpu; sleep 99999; done"]
+ volumes:
+ - name: nfd-features
+ hostPath:
+ path: /etc/kubernetes/node-feature-discovery/features.d/
+ type: DirectoryOrCreate

deployments/gpu_plugin/overlays/fake_devices/del-intel-gpu-initcontainer.yaml

@@ -0,0 +1,6 @@
+$patch: delete
+spec:
+ template:
+ spec:
+ initContainers:
+ - name: intel-gpu-initcontainer

deployments/gpu_plugin/overlays/fake_devices/kustomization.yaml

@@ -6,9 +6,11 @@ configMapGenerator:
 - name: fakedev-config
  files:
  - fakedev-config.json
+patchesStrategicMerge:
+ # NFD feature file change is obsolete after GPU plugin moves away from NFD hooks
+- del-intel-gpu-initcontainer.yaml
 patches:
  - fake-device-volumes.yaml
  - generate-fake-devices.yaml
- # NFD feature file change is obsolete after GPU plugin moves away from NFD hooks:
- # https://github.com/kubernetes-sigs/node-feature-discovery/issues/856
- - use-nfd-feature-file.yaml
+ # NFD feature file change is obsolete after GPU plugin moves away from NFD hooks
+ - add-nfd-feature-file.yaml