finished templating tap.mountBpf option. (#1711)

config/configStructs/tapConfig.go

@@ -313,6 +313,7 @@ type TapConfig struct {
 	Pprof                        PprofConfig             `yaml:"pprof" json:"pprof"`
 	Misc                         MiscConfig              `yaml:"misc" json:"misc"`
 	SecurityContext              SecurityContextConfig   `yaml:"securityContext" json:"securityContext"`
+	MountBpf                     bool                    `yaml:"mountBpf" json:"mountBpf" default:"true"`
 }
 
 func (config *TapConfig) PodRegex() *regexp.Regexp {

helm-chart/README.md

@@ -205,6 +205,7 @@ Example for overriding image names:
 | `tap.globalFilter`                        | Prepends to any KFL filter and can be used to limit what is visible in the dashboard. For example, `redact("request.headers.Authorization")` will redact the appropriate field. Another example `!dns` will not show any DNS traffic.      | `""`                                        |
 | `tap.metrics.port`                  | Pod port used to expose Prometheus metrics          | `49100`                                                  |
 | `tap.enabledDissectors`                   | This is an array of strings representing the list of supported protocols. Remove or comment out redundant protocols (e.g., dns).| The default list excludes: `udp` and `tcp` |
+| `tap.mountBpf`                            | BPF filesystem needs to be mounted for eBPF to work properly. This helm value determines whether Kubeshark will attempt to mount the filesystem. This option is not required if filesystem is already mounts. │ `true`|
 | `logs.file`                               | Logs dump path                      | `""`                                                    |
 | `pcapdump.enabled`                        | Enable recording of all traffic captured according to other parameters. Whatever Kubeshark captures, considering pod targeting rules, will be stored in pcap files ready to be viewed by tools                 | `true`                                                                                                  |
 | `pcapdump.maxTime`                        | The time window into the past that will be stored. Older traffic will be discarded.  | `2h`  |

helm-chart/values.yaml

@@ -209,6 +209,7 @@ tap:
       - SYS_PTRACE
       - SYS_RESOURCE
       - IPC_LOCK
+  mountBpf: true
 logs:
   file: ""
   grep: ""

manifests/complete.yaml

@@ -523,6 +523,20 @@ spec:
       name: kubeshark-worker-daemon-set
       namespace: kubeshark
     spec:
+      initContainers:
+        - command:
+          - /bin/sh
+          - -c
+          - mkdir -p /sys/fs/bpf && mount | grep -q '/sys/fs/bpf' || mount -t bpf bpf /sys/fs/bpf
+          image: 'docker.io/kubeshark/worker:v52.4'
+          imagePullPolicy: Always
+          name: mount-bpf
+          securityContext:
+            privileged: true
+          volumeMounts:
+          - mountPath: /sys
+            name: sys
+            mountPropagation: Bidirectional
       containers:
         - command:
             - ./worker