Added arm64 targets for linux binaries

.travis.yml

@@ -12,7 +12,7 @@ services:
  - docker
 before_install:
  - sudo apt-get -qq update
- - sudo apt-get install -y libsystemd-dev
+ - sudo apt-get install -y libsystemd-dev libc6-dev-arm64-cross gcc-aarch64-linux-gnu
 install:
  - mkdir -p $HOME/gopath/src/k8s.io
  - mv $TRAVIS_BUILD_DIR $HOME/gopath/src/k8s.io/node-problem-detector

Makefile

@@ -22,7 +22,8 @@
 all: build
 
 # PLATFORMS is the set of OS_ARCH that NPD can build against.
-PLATFORMS=linux_amd64 windows_amd64
+LINUX_PLATFORMS=linux_amd64 linux_arm64
+PLATFORMS=$(LINUX_PLATFORMS) windows_amd64
 
 # VERSION is the version of the binary.
 VERSION?=$(shell if [ -d .git ]; then echo `git describe --tags --dirty`; else echo "UNKNOWN"; fi)
@@ -123,7 +124,9 @@ ifeq ($(ENABLE_JOURNALD), 1)
 	BINARIES_LINUX_ONLY += bin/log-counter
 endif
 
-ALL_BINARIES = $(foreach binary, $(BINARIES) $(BINARIES_LINUX_ONLY), ./$(binary)) $(foreach binary, $(BINARIES) $(BINARIES_LINUX_ONLY), output/linux_amd64/$(binary)) $(foreach binary, $(BINARIES), output/windows_amd64/$(binary).exe)
+ALL_BINARIES = $(foreach binary, $(BINARIES) $(BINARIES_LINUX_ONLY), ./$(binary)) \
+  $(foreach platform, $(LINUX_PLATFORMS), $(foreach binary, $(BINARIES) $(BINARIES_LINUX_ONLY), output/$(platform)/$(binary))) \
+  $(foreach binary, $(BINARIES), output/windows_amd64/$(binary).exe)
 ALL_TARBALLS = $(foreach platform, $(PLATFORMS), $(NPD_NAME_VERSION)-$(platform).tar.gz)
 
 output/windows_amd64/bin/%.exe: $(PKG_SOURCES)
@@ -143,7 +146,8 @@ output/windows_amd64/test/bin/%.exe: $(PKG_SOURCES)
 		./test/e2e/$(subst -,,$*)
 
 output/linux_amd64/bin/%: $(PKG_SOURCES)
-	GOOS=linux GOARCH=amd64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on go build \
+	GOOS=linux GOARCH=amd64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on \
+	  CC=x86_64-linux-gnu-gcc go build \
 		-mod vendor \
 		-o $@ \
 		-ldflags '-X $(PKG)/pkg/version.version=$(VERSION)' \
@@ -152,7 +156,26 @@ output/linux_amd64/bin/%: $(PKG_SOURCES)
 	touch $@
 
 output/linux_amd64/test/bin/%: $(PKG_SOURCES)
-	GOOS=linux GOARCH=amd64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on go build \
+	GOOS=linux GOARCH=amd64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on \
+	  CC=x86_64-linux-gnu-gcc go build \
+		-mod vendor \
+		-o $@ \
+		-tags "$(LINUX_BUILD_TAGS)" \
+		./test/e2e/$(subst -,,$*)
+
+output/linux_arm64/bin/%: $(PKG_SOURCES)
+	GOOS=linux GOARCH=arm64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on \
+	  CC=aarch64-linux-gnu-gcc go build \
+		-mod vendor \
+		-o $@ \
+		-ldflags '-X $(PKG)/pkg/version.version=$(VERSION)' \
+		-tags "$(LINUX_BUILD_TAGS)" \
+		./cmd/$(subst -,,$*)
+	touch $@
+
+output/linux_arm64/test/bin/%: $(PKG_SOURCES)
+	GOOS=linux GOARCH=arm64 CGO_ENABLED=$(CGO_ENABLED) GO111MODULE=on \
+	  CC=aarch64-linux-gnu-gcc go build \
 		-mod vendor \
 		-o $@ \
 		-tags "$(LINUX_BUILD_TAGS)" \

README.md

@@ -137,12 +137,16 @@ For example, to run without auth, use the following config:
 
 ## Build Image
 
+* Install development dependencies for `libsystemd` and the ARM GCC toolchain
+  * Debian: `apt install libsystemd-dev gcc-aarch64-linux-gnu`
+  * Ubuntu: `apt install libsystemd-journal-dev gcc-aarch64-linux-gnu`
+
 * `go get` or `git clone` node-problem-detector repo into `$GOPATH/src/k8s.io` or `$GOROOT/src/k8s.io`
 with one of the below directions:
   * `cd $GOPATH/src/k8s.io && git clone git@github.com:kubernetes/node-problem-detector.git`
   * `cd $GOPATH/src/k8s.io && go get k8s.io/node-problem-detector`
 
-* run `make` in the top directory. It will:
+* Run `make` in the top directory. It will:
   * Build the binary.
   * Build the docker image. The binary and `config/` are copied into the docker image.
 
@@ -158,11 +162,6 @@ and [System Stats Monitor](https://github.com/kubernetes/node-problem-detector/t
 Check out the [Problem Daemon](https://github.com/kubernetes/node-problem-detector#problem-daemon) section
 to see how to disable each problem daemon during compilation time.
 
-**Note**:
-By default, node-problem-detector will be built with systemd support with the `make` command. This requires systemd develop files.
-You should download the systemd develop files first. For Ubuntu, the `libsystemd-journal-dev` package should
-be installed. For Debian, the `libsystemd-dev` package should be installed.
-
 ## Push Image
 
 `make push` uploads the docker image to a registry. By default, the image will be uploaded to
@@ -320,4 +319,4 @@ See [NPD e2e test documentation](https://github.com/kubernetes/node-problem-dete
 * [Slides](https://docs.google.com/presentation/d/1bkJibjwWXy8YnB5fna6p-Ltiy-N5p01zUsA22wCNkXA/edit?usp=sharing)
 * [Plugin Interface Proposal](https://docs.google.com/document/d/1jK_5YloSYtboj-DtfjmYKxfNnUxCAvohLnsH5aGCAYQ/edit#)
 * [Addon Manifest](https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/node-problem-detector)
-* [Metrics Mode Proposal](https://docs.google.com/document/d/1SeaUz6kBavI283Dq8GBpoEUDrHA2a795xtw0OvjM568/edit)
+* [Metrics Mode Proposal](https://docs.google.com/document/d/1SeaUz6kBavI283Dq8GBpoEUDrHA2a795xtw0OvjM568/edit)

test/build.sh

@@ -65,7 +65,7 @@ function get-version() {
 
 function install-lib() {
   apt-get update
-  apt-get install -y libsystemd-dev
+  apt-get install -y libsystemd-dev gcc-aarch64-linux-gnu
   # Turn off go modules here, because we are not trying to install
   # ginkgo library/module. We are trying to install the ginkgo executable.
   GO111MODULE=off go get -v github.com/onsi/ginkgo/ginkgo