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kernel: Build a perf package for 4.11/4.9 kernels

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Extract the perf binary from the kernel package and create
a new perf package for each kernel. The perf package uses the
same tags as the kernel package and only contains the perf
binary under /usr/bin. The perf package can be added to the
init section or included as a stage in a multi-stage build
for other packages.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer
2017-06-15 10:24:28 -07:00
parent baf32846d8
commit 0b6f1a72b6
2 changed files with 42 additions and 2 deletions
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10
kernel/Dockerfile.perf Normal file
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@@ -0,0 +1,10 @@
# This Dockerfile extracts the perf utility from a kernel package and
# places it into a scratch image
ARG IMAGE
FROM ${IMAGE} AS kernel
FROM scratch
ENTRYPOINT []
CMD []
WORKDIR /
COPY --from=kernel /perf /usr/bin/perf

34
kernel/Makefile
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@@ -1,18 +1,23 @@
# This builds the supported LinuxKit kernels. Kernels are wrapped up # This builds the supported LinuxKit kernels. Kernels are wrapped up
# in a minimal toybox container, which contains the bzImage, a tar # in a scratch container, which contains the bzImage, a tar
# ball with modules and the kernel source. # ball with modules, the kernel sourcs, and in some case, the perf binary.
# #
# Each kernel is pushed to hub twice, once as # Each kernel is pushed to hub twice, once as
# linuxkit/kernel:<kernel>.<major>.<minor>-<hash> and once as # linuxkit/kernel:<kernel>.<major>.<minor>-<hash> and once as
# inuxkit/kernel:<kernel>.<major>.x. The <hash> is the git tree hash # inuxkit/kernel:<kernel>.<major>.x. The <hash> is the git tree hash
# of the current directory. The build will only rebuild the kernel # of the current directory. The build will only rebuild the kernel
# image if the git tree hash changed. # image if the git tree hash changed.
#
# For some kernels we also build a separate package containing the perf utility
# which is specific to a given kernel. perf packages are tagged the same way
# kernel packages.
# Git tree hash of this directory. Override to force build # Git tree hash of this directory. Override to force build
HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}') HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}')
# Name and Org on Hub # Name and Org on Hub
ORG?=linuxkit ORG?=linuxkit
IMAGE:=kernel IMAGE:=kernel
IMAGE_PERF:=kernel-perf
.PHONY: check tag push sign .PHONY: check tag push sign
# Targets: # Targets:
@@ -57,6 +62,31 @@ sign_$(2)$(3): build_$(2)$(3)
build: build_$(2)$(3) build: build_$(2)$(3)
push: push_$(2)$(3) push: push_$(2)$(3)
sign: sign_$(2)$(3) sign: sign_$(2)$(3)
ifneq ($(2), 4.4.x)
build_perf_$(2)$(3): build_$(2)$(3)
docker pull $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) || \
docker build -f Dockerfile.perf \
--build-arg IMAGE=$(ORG)/$(IMAGE):$(1)$(3)-$(HASH) \
--no-cache --network=none -t $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) .
push_perf_$(2)$(3): build_perf_$(2)$(3)
docker pull $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) || \
(docker push $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) && \
docker tag $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) $(ORG)/$(IMAGE_PERF):$(2)$(3) && \
docker push $(ORG)/$(IMAGE_PERF):$(2)$(3))
sign_perf_$(2)$(3): build_perf_$(2)$(3)
DOCKER_CONTENT_TRUST=1 docker pull $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) || \
(DOCKER_CONTENT_TRUST=1 docker push $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) && \
docker tag $(ORG)/$(IMAGE_PERF):$(1)$(3)-$(HASH) $(ORG)/$(IMAGE_PERF):$(2)$(3) && \
DOCKER_CONTENT_TRUST=1 docker push $(ORG)/$(IMAGE_PERF):$(2)$(3))
build: build_perf_$(2)$(3)
push: push_perf_$(2)$(3)
sign: sign_perf_$(2)$(3)
endif
endef endef
# #