Initial commit

.circleci/config.yml

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+version: 2
+jobs:
+  all:
+    docker:
+      - image: circleci/golang:1.11
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run:
+          name: build-and-release
+          command: |
+            curl -L https://github.com/tcnksm/ghr/releases/download/v0.12.0/ghr_v0.12.0_linux_amd64.tar.gz \
+              | sudo tar --strip=1 -C /usr/bin -xzvf -
+            make build-all
+
+workflows:
+  version: 2
+  all:
+    jobs:
+      - all:
+          filters:
+            tags:
+              only: /^[0-9]*$/
+            branches:
+              ignore: /.*/

.gitignore

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+build
+*.opk

ARCHS

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+x86_64
+arm64
+armhf

Makefile

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+VERSION  ?= 0.2.0-rc5
+PVERSION ?= 1
+ARCH     ?= x86_64
+suffix   := $(subst -x86_64,,-$(ARCH))
+
+FILES = $(shell find files/ -type f)
+DIR   = build/$(VERSION)/$(ARCH)
+OUT   = build/k3s_$(VERSION)_$(ARCH).opk
+
+define CONTROL
+Package: k3s
+Version: ${VERSION}-${PVERSION}
+Architecture: $(ARCH)
+Maintainer: Johannes 'fish' Ziemke
+Depends: iptables kmod-ipt-extra iptables-mod-extra kmod-br-netfilter ca-certificates
+Description: The Docker Engine packages for OpenWrt
+endef
+export CONTROL
+
+.PHONY: all
+all: $(OUT)
+
+build-all:
+	if [ -n "$$(ls build/)" ]; then echo build/ not empty && exit 1; fi
+	for a in $$(cat ARCHS); do \
+		for v in $$(cat VERSIONS); do \
+			make ARCH=$$a VERSION=$$v; \
+		done; \
+	done
+
+.PHONY: release
+release: build-all
+	ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} \
+		-c ${CIRCLE_SHA1} -delete ${PVERSION} build/
+
+$(OUT): $(DIR)/pkg/control.tar.gz $(DIR)/pkg/data.tar.gz $(DIR)/pkg/debian-binary
+	tar -C $(DIR)/pkg -czvf "$@" debian-binary data.tar.gz control.tar.gz
+
+$(DIR)/data: $(FILES)
+	mkdir -p "$@/usr/bin"
+	cp -r files/* "$@"
+	curl -sfLo "$@/usr/bin/k3s" \
+		https://github.com/rancher/k3s/releases/download/v$(VERSION)/k3s${suffix}
+	chmod a+x "$@/usr/bin/k3s"
+
+$(DIR)/pkg/data.tar.gz: $(DIR)/data
+	tar -C "$<" -czvf "$@" .
+
+$(DIR)/pkg:
+	mkdir -p $@
+
+$(DIR)/pkg/debian-binary: $(DIR)/pkg
+	echo 2.0 > $@
+
+$(DIR)/pkg/control: $(DIR)/pkg
+	echo "$$CONTROL" > "$@"
+
+$(DIR)/pkg/control.tar.gz: $(DIR)/pkg/control
+	tar -C $(DIR)/pkg -czvf "$@" control
+
+.PHONY: clean
+clean:
+	rm -rf build/

README.md

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+# k3s on OpenWrt
+Makefile to generate OpenWrt .opkg packages from official k3s binaries.
+
+## Usage
+Run `make` to build the default version for `x86_64`. You can override ARCH and
+VERSION, e.g `make ARCH=armhf`. See ARCHS and VERSIONS files for available
+architectures and versions.

VERSIONS

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+0.2.0-rc5
+0.2.0-rc4

files/etc/config/k3s

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+config globals 'globals'
+  option root '/data/k3s'

files/etc/init.d/k3s

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+#!/bin/sh /etc/rc.common
+
+START=60
+STOP=20
+
+PIDFILE=/var/run/k3s.pid
+EXEC="/usr/bin/k3s"
+
+start() {
+  start-stop-daemon -S -b -x "$EXEC" -m -p "$PIDFILE" \
+    -- server --data-dir $(uci_get k3s.globals.root)
+}
+
+stop() {
+  start-stop-daemon -K -p "$PIDFILE"
+}