✨ Add 14-module-loader-config-map.yaml and a Makefile rule that generates it

Makefile

@@ -75,6 +75,11 @@ generate-helm-values: ## Generate the Helm values from config.yaml
 generate-manifests: ## Generate the manifests from the Helm chart using default configuration
 	helm template kubeshark -n default ./helm-chart > ./manifests/complete.yaml
 
+generate-module-loader-config-map:
+	kubectl create configmap kubeshark-module-loader-dockerfile --from-file=./module-loader/Dockerfile && \
+	kubectl get configmap kubeshark-module-loader-dockerfile -o yaml > ./helm-chart/templates/14-module-loader-config-map.yaml && \
+	kubectl delete configmap kubeshark-module-loader-dockerfile
+
 logs-worker:
 	export LOGS_POD_PREFIX=kubeshark-worker-
 	export LOGS_FOLLOW=

helm-chart/templates/13-module-loader.yaml

@@ -14,7 +14,7 @@ spec:
           containerImage: "kubeshark/module-loader:latest"
           build:
             dockerfileConfigMap:
-              name: my-kmod-dockerfile
+              name: kubeshark-module-loader-dockerfile
           sign:
             certSecret:
               name: cert-secret

helm-chart/templates/14-module-loader-config-map.yaml

@@ -0,0 +1,42 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: kubeshark-module-loader-dockerfile
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "kubeshark.labels" . | nindent 4 }}
+data:
+  Dockerfile: |
+    ### Builder image
+    ARG TARGETARCH=amd64
+    FROM ${TARGETARCH}/debian:bullseye AS builder
+
+    ARG KERNEL_VERSION
+
+    RUN apt-get update
+    RUN apt-get install -y -q \
+        curl \
+        build-essential \
+        linux-headers-${KERNEL_VERSION}
+
+    WORKDIR /work
+    RUN curl https://github.com/ntop/PF_RING/archive/refs/tags/8.4.0.tar.gz -Lo ./pfring.tar.xz && \
+        tar -xf pfring.tar.xz && \
+        mv ./PF_RING-* ./pfring
+
+    WORKDIR /work/pfring/kernel
+    ENV KERNELRELEASE=${KERNEL_VERSION}
+    RUN make
+
+
+    ### The shipped image
+    ARG TARGETARCH=amd64
+    FROM ${TARGETARCH}/debian:bullseye
+
+    ARG KERNEL_VERSION
+
+    RUN apt-get update && apt-get install -y kmod
+
+    COPY --from=builder /work/pfring/kernel/pf_ring.ko /opt/lib/modules/${KERNEL_VERSION}/
+
+    RUN depmod -b /opt ${KERNEL_VERSION}