[build] Add option to avoid Docker base image :latest tag (#3124)
Define slave_base_tag_ref variable in Makefile.work containing specific base image tag to use, rather than always defaulting to :latest. Add an ARG command before FROM statement in Dockerfile.user for sonic-slave and sonic-slave-stretch. ARG variable defaults to latest if slave_base_tag_ref not specified in Makefile.work. The presumption to always refer to the :latest tagged Docker base image when creating the user image causes problems in a shared build server environment, where the most recently created base image (i.e. the current :latest tag) may not be compatible with the current build. For example, different users working in different branches may all be sharing the same build server. Signed-off-by: Greg Paussa greg.paussa@broadcom.com - What I did Added a DOCKER_AVOID_BASE_TAG_LATEST build option to rules/config that forces the Docker user image creation to refer to its base image by a specific tag rather than rely on the :latest tag. This is needed in a shared build server environment where builds from different developers and/or different SONiC branches all converge on the same Docker daemon instance running on the build server. The :latest tag is always assigned to the most recent base image built, which might not correspond to the base image needed for a particular build, thus causing various build errors that mostly manifest as missing Debian packages or package version mismatches. NOTE TO REVIEWERS: This PR relies on Docker support of "ARG before FROM," which was first introduced in Docker version 17.05.1-ce. Although there is no mention of a minimum required Docker version for the build server in the SONiC Building Guide pages, please consider whether it is reasonable to assume that Docker 17.05.1-ce or later must be used for SONiC build hosts before approving this PR. - How I did it Added an ARG before the FROM statement at the top of the sonic-slave/Dockerfile.user and sonic-slave-stretch/Dockerfile.user files. The ARG variable defaults to latest, but can be overridden in Makefile.work to reference the SLAVE_BASE_TAG so that it refers to the specific, matching base image for the build. This override is activated by un-commenting the DOCKER_AVOID_BASE_TAG_LATEST = y line in rules/config.
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@ -42,6 +42,16 @@ ifeq ($(USER), root)
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$(error Add your user account to docker group and use your user account to make. root or sudo are not supported!)
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endif
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# Check for minimum Docker version on build host
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# Note: Using the greater of CE (17.05.0) and EE (17.06.1) versions that support ARG before FROM
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docker_min := 17.06.1
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docker_min_ver := $(shell echo "$(docker_min)" | awk -F. '{printf("%d%03d%03d\n",$$1,$$2,$$3);}' 2>/dev/null)
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docker_ver := $(shell docker info 2>/dev/null | grep -i "server version" | cut -d' ' -f3 | awk -F. '{printf("%d%03d%03d\n",$$1,$$2,$$3);}' 2>/dev/null)
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docker_is_valid := $(shell if [ $(docker_ver) -lt $(docker_min_ver) ] ; then echo "0"; else echo "1"; fi)
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ifeq (0,$(docker_is_valid))
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$(error SONiC requires Docker version $(docker_min) or later)
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endif
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# Remove lock file in case previous run was forcefully stopped
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$(shell rm -f .screen)
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@ -91,21 +101,20 @@ ifeq ($(SONIC_CONFIG_USE_NATIVE_DOCKERD_FOR_BUILD), y)
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endif
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DOCKER_BASE_BUILD = docker build --no-cache \
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-t $(SLAVE_BASE_IMAGE) \
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-t $(SLAVE_BASE_IMAGE):$(SLAVE_BASE_TAG) \
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--build-arg http_proxy=$(http_proxy) \
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--build-arg https_proxy=$(https_proxy) \
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$(SLAVE_DIR) && \
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docker tag $(SLAVE_BASE_IMAGE):latest $(SLAVE_BASE_IMAGE):$(SLAVE_BASE_TAG)
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$(SLAVE_DIR)
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DOCKER_BUILD = docker build --no-cache \
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--build-arg user=$(USER) \
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--build-arg uid=$(shell id -u) \
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--build-arg guid=$(shell id -g) \
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--build-arg hostname=$(shell echo $$HOSTNAME) \
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-t $(SLAVE_IMAGE) \
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--build-arg slave_base_tag_ref=$(SLAVE_BASE_TAG) \
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-t $(SLAVE_IMAGE):$(SLAVE_TAG) \
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-f $(SLAVE_DIR)/Dockerfile.user \
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$(SLAVE_DIR) && \
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docker tag $(SLAVE_IMAGE):latest $(SLAVE_IMAGE):$(SLAVE_TAG)
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$(SLAVE_DIR)
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SONIC_BUILD_INSTRUCTION := make \
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-f slave.mk \
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@ -1,4 +1,5 @@
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FROM sonic-slave-stretch-base
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ARG slave_base_tag_ref=latest
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FROM sonic-slave-stretch-base:${slave_base_tag_ref}
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# Add user
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ARG user
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@ -1,4 +1,5 @@
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FROM sonic-slave-base
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ARG slave_base_tag_ref=latest
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FROM sonic-slave-base:${slave_base_tag_ref}
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# Add user
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ARG user
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