base: Add kpx daemon and service definition

Signed-off-by: Mathias Gibbens <mathias.gibbens@futurfusion.io>

.gitignore

@@ -8,12 +8,14 @@ mkosi.key
 certs/
 
 mkosi.images/base/mkosi.extra/boot/EFI/
-mkosi.images/base/mkosi.extra/usr/local/bin/incus-osd
+mkosi.images/base/mkosi.extra/usr/local/bin/
 
 incus-osd/flasher-tool
 incus-osd/image-customizer
 incus-osd/image-publisher
 incus-osd/incus-osd
+incus-osd/kpx
+
 mkosi.packages/initrd-tmpfs-root*
 
 *.swp

Makefile

@@ -18,6 +18,18 @@ flasher-tool:
 	(cd incus-osd && go build ./cmd/flasher-tool)
 	strip incus-osd/flasher-tool
 
+.PHONY: kpx
+kpx:
+	$(eval KPX_VERSION := 1.11.0)
+ifeq (,$(wildcard incus-osd/kpx/))
+	git clone https://github.com/momiji/kpx incus-osd/kpx/ --depth 1 -b "v${KPX_VERSION}"
+else
+	(cd incus-osd/kpx && git fetch --depth 1 origin "v${KPX_VERSION}":refs/tags/"v${KPX_VERSION}" && git checkout "v${KPX_VERSION}")
+endif
+
+	(cd incus-osd/kpx/cli && go build -o kpx -ldflags="-s -w -X github.com/momiji/kpx.AppVersion=${KPX_VERSION}")
+	strip incus-osd/kpx/cli/kpx
+
 .PHONY: initrd-deb-package
 initrd-deb-package:
 	$(eval OSNAME := $(shell grep "ImageId=" mkosi.conf | cut -d '=' -f 2))
@@ -48,7 +60,7 @@ ifeq (,$(wildcard ./certs/))
 endif
 
 .PHONY: build
-build: incus-osd flasher-tool initrd-deb-package
+build: incus-osd flasher-tool kpx initrd-deb-package
 ifeq (, $(shell which mkosi))
 	@echo "mkosi couldn't be found, please install it and try again"
 	exit 1
@@ -59,6 +71,7 @@ endif
 	openssl x509 -in mkosi.crt -out mkosi.images/base/mkosi.extra/boot/EFI/mkosi.der -outform DER
 	mkdir -p mkosi.images/base/mkosi.extra/usr/local/bin/
 	cp incus-osd/incus-osd mkosi.images/base/mkosi.extra/usr/local/bin/
+	cp incus-osd/kpx/cli/kpx mkosi.images/base/mkosi.extra/usr/local/bin/
 	sudo rm -Rf mkosi.output/base* mkosi.output/debug* mkosi.output/incus*
 	sudo -E $(shell command -v mkosi) --cache-dir .cache/ build
 	sudo chown $(shell id -u):$(shell id -g) mkosi.output

mkosi.images/base/mkosi.extra/usr/lib/systemd/system/kpx.service

@@ -0,0 +1,8 @@
+[Unit]
+Description=kpx proxy daemon
+
+[Service]
+User=nobody
+Group=nogroup
+ExecStart=/usr/local/bin/kpx -c /etc/kpx.yaml
+Restart=on-failure