Updated kata manager setup to use distroless base image

Signed-off-by: agadiyar <agadiyar@nvidia.com>

Author: JunAr7112

assets/state-kata-manager/0410_configmap.yaml

@@ -7,11 +7,11 @@ metadata:
     app: nvidia-kata-manager
 data:
   entrypoint.sh: |-
-    #!/bin/bash
+    #!/bin/sh
 
-    if [[ "${CDI_ENABLED}" == "true" ]]; then
+    if [ "${CDI_ENABLED}" = "true" ]; then
       while true; do
-        if [[ -f /run/nvidia/validations/vfio-pci-ready ]]; then
+        if [ -f /run/nvidia/validations/vfio-pci-ready ]; then
           break
         fi
         echo "waiting for vfio-pci validations to complete..."

assets/state-kata-manager/0600_daemonset.yaml

@@ -27,7 +27,7 @@ spec:
         - name: nvidia-kata-manager
           image: "FILLED BY THE OPERATOR"
           imagePullPolicy: IfNotPresent
-          command: ["/bin/bash", "-c"]
+          command: ["/bin/sh", "-c"]
           args:
             - /bin/entrypoint.sh
           env:
@@ -66,11 +66,11 @@ spec:
           readinessProbe:
             exec:
               command:
-                - bash
+                - sh
                 - "-c"
                 - |
                   pid_file="${KATA_ARTIFACTS_DIR}/k8s-kata-manager.pid"
-                  [[ -f "${pid_file}" ]] && [[ -d "/proc/$(cat $pid_file)" ]] && exit 0 || exit 1
+                  [ -f "${pid_file}" ] && [ -d "/proc/$(cat $pid_file)" ] && exit 0 || exit 1
             initialDelaySeconds: 5
             periodSeconds: 5
       terminationGracePeriodSeconds: 30