Add reference Makefile and tests

Signed-off-by: Thomas Stromberg <[email protected]>

Author: tstromberg

Makefile

@@ -0,0 +1,41 @@
+
+# BEGIN: lint-install .
+# http://github.com/tinkerbell/lint-install
+
+GOLINT_VERSION ?= v1.42.0
+HADOLINT_VERSION ?= v2.7.0
+SHELLCHECK_VERSION ?= v0.7.2
+LINT_OS := $(shell uname)
+LINT_ARCH := $(shell uname -m)
+
+# shellcheck and hadolint lack arm64 native binaries: rely on x86-64 emulation
+ifeq ($(LINT_OS),Darwin)
+	ifeq ($(LINT_ARCH),arm64)
+		LINT_ARCH=x86_64
+	endif
+endif
+
+LINT_LOWER_OS  = $(shell echo $(LINT_OS) | tr '[:upper:]' '[:lower:]')
+GOLINT_CONFIG:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))/.golangci.yml
+
+lint: out/linters/shellcheck-$(SHELLCHECK_VERSION)-$(LINT_ARCH)/shellcheck out/linters/hadolint-$(HADOLINT_VERSION)-$(LINT_ARCH) out/linters/golangci-lint-$(GOLINT_VERSION)-$(LINT_ARCH)
+	out/linters/golangci-lint-$(GOLINT_VERSION)-$(LINT_ARCH) run
+	out/linters/hadolint-$(HADOLINT_VERSION)-$(LINT_ARCH) -t info $(shell find . -name "*Dockerfile")
+	out/linters/shellcheck-$(SHELLCHECK_VERSION)-$(LINT_ARCH)/shellcheck $(shell find . -name "*.sh")
+
+out/linters/shellcheck-$(SHELLCHECK_VERSION)-$(LINT_ARCH)/shellcheck:
+	mkdir -p out/linters
+	curl -sSfL https://github.com/koalaman/shellcheck/releases/download/$(SHELLCHECK_VERSION)/shellcheck-$(SHELLCHECK_VERSION).$(LINT_LOWER_OS).$(LINT_ARCH).tar.xz | tar -C out/linters -xJf -
+	mv out/linters/shellcheck-$(SHELLCHECK_VERSION) out/linters/shellcheck-$(SHELLCHECK_VERSION)-$(LINT_ARCH)
+
+out/linters/hadolint-$(HADOLINT_VERSION)-$(LINT_ARCH):
+	mkdir -p out/linters
+	curl -sfL https://github.com/hadolint/hadolint/releases/download/v2.6.1/hadolint-$(LINT_OS)-$(LINT_ARCH) > out/linters/hadolint-$(HADOLINT_VERSION)-$(LINT_ARCH)
+	chmod u+x out/linters/hadolint-$(HADOLINT_VERSION)-$(LINT_ARCH)
+
+out/linters/golangci-lint-$(GOLINT_VERSION)-$(LINT_ARCH):
+	mkdir -p out/linters
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b out/linters $(GOLINT_VERSION)
+	mv out/linters/golangci-lint out/linters/golangci-lint-$(GOLINT_VERSION)-$(LINT_ARCH)
+
+# END: lint-install .

test/test.Dockerfile

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+FROM ubuntu:hirsute-20210723
+RUN echo hello world

test/test.sh

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+#!/bin/sh