new(build): make sure we only build with the specified bpftrace version

Signed-off-by: Lorenzo Fontana <[email protected]>

Makefile

@@ -20,6 +20,8 @@ IMAGE_INITCONTAINER_LATEST := $(IMAGE_NAME_INIT):latest
 
 IMAGE_BUILD_FLAGS ?= "--no-cache"
 
+BPFTRACEVERSION ?= "0.9.2-1"
+
 LDFLAGS := -ldflags '-X github.com/iovisor/kubectl-trace/pkg/version.buildTime=$(shell date +%s) -X github.com/iovisor/kubectl-trace/pkg/version.gitCommit=${GIT_COMMIT} -X github.com/iovisor/kubectl-trace/pkg/cmd.ImageNameTag=${IMAGE_TRACERUNNER_COMMIT} -X github.com/iovisor/kubectl-trace/pkg/cmd.InitImageNameTag=${IMAGE_INITCONTAINER_COMMIT}'
 TESTPACKAGES := $(shell go list ./... | grep -v github.com/iovisor/kubectl-trace/integration)
 
@@ -50,6 +52,7 @@ image/build-init:
 .PHONY: image/build
 image/build:
 	$(DOCKER) build \
+		--build-arg bpftraceversion=$(BPFTRACEVERSION) \
 		$(IMAGE_BUILD_FLAGS) \
 		-t "$(IMAGE_TRACERUNNER_BRANCH)" \
 		-f build/Dockerfile.tracerunner .

build/Dockerfile.tracerunner

@@ -9,9 +9,9 @@ WORKDIR /go/src/github.com/iovisor/kubectl-trace
 RUN make _output/bin/trace-runner
 
 FROM ubuntu:19.10
-
-RUN apt-get update && apt-get install -y bpftrace && \
-                   rm -rf /var/lib/apt/lists/* && apt-get clean
+ARG bpftraceversion=0.9.2-1
+RUN apt-get update && apt-get install -y bpftrace=${bpftraceversion} && \
+      rm -rf /var/lib/apt/lists/* && apt-get clean
 
 COPY --from=gobuilder /go/src/github.com/iovisor/kubectl-trace/_output/bin/trace-runner /bin/trace-runner