Added Dockerfile

Author: djthorpe

.gitignore

@@ -1 +1,2 @@
 build
+etc/_cli

Makefile

@@ -1,5 +1,6 @@
 # Paths to tools needed in dependencies
 GO := $(shell which go)
+DOCKER := $(shell which docker)
 
 # Build flags
 BUILD_MODULE := $(shell cat go.mod | head -1 | cut -d ' ' -f 2)
@@ -10,28 +11,48 @@ BUILD_LD_FLAGS += -X $(BUILD_MODULE)/pkg/version.GitHash=$(shell git rev-parse H
 BUILD_LD_FLAGS += -X $(BUILD_MODULE)/pkg/version.GoBuildTime=$(shell date -u '+%Y-%m-%dT%H:%M:%SZ')
 BUILD_FLAGS = -ldflags "-s -w $(BUILD_LD_FLAGS)" 
 
+# Set OS and Architecture
+ARCH ?= $(shell arch | tr A-Z a-z | sed 's/x86_64/amd64/' | sed 's/i386/amd64/' | sed 's/armv7l/arm/' | sed 's/aarch64/arm64/')
+OS ?= $(shell uname | tr A-Z a-z)
+VERSION ?= $(shell git describe --tags --always | sed 's/^v//')
+
 # Paths to locations, etc
 BUILD_DIR := "build"
 CMD_DIR := $(wildcard cmd/*)
+BUILD_TAG := go-client-${OS}-${ARCH}:${VERSION}
 
 # Targets
 all: clean cmd
 
 cmd: $(CMD_DIR)
 
-test:
+docker: docker-dep
+	@echo build docker image: ${BUILD_TAG} for ${OS}/${ARCH}
+	@${DOCKER} build \
+		--tag ${BUILD_TAG} \
+		--build-arg ARCH=${ARCH} \
+		--build-arg OS=${OS} \
+		--build-arg SOURCE=${BUILD_MODULE} \
+		--build-arg VERSION=${VERSION} \
+		-f etc/Dockerfile .
+
+test: go-dep
+	@echo Test
 	@${GO} mod tidy
 	@${GO} test ./pkg/...
 
-$(CMD_DIR): dependencies mkdir
+$(CMD_DIR): go-dep mkdir
 	@echo Build cmd $(notdir $@)
 	@${GO} build ${BUILD_FLAGS} -o ${BUILD_DIR}/$(notdir $@) ./$@
 
 FORCE:
 
-dependencies:
+go-dep:
 	@test -f "${GO}" && test -x "${GO}"  || (echo "Missing go binary" && exit 1)
 
+docker-dep:
+	@test -f "${DOCKER}" && test -x "${DOCKER}"  || (echo "Missing docker binary" && exit 1)
+
 mkdir:
 	@echo Mkdir ${BUILD_DIR}
 	@install -d ${BUILD_DIR}

etc/Dockerfile

@@ -0,0 +1,26 @@
+ARG OS
+ARG ARCH
+
+# Run makefile to build all the commands
+FROM --platform=${OS}/${ARCH} golang:1.21-bullseye AS builder
+ARG OS
+ARG ARCH
+WORKDIR /usr/src/app
+COPY . .
+RUN OS=${OS} ARCH=${ARCH} make
+
+# Copy server to /usr/local/bin
+FROM --platform=${OS}/${ARCH} debian:bullseye-slim
+ARG OS
+ARG ARCH
+ARG SOURCE
+RUN apt update && apt install -y ca-certificates
+COPY --from=builder /usr/src/app/build/* /usr/local/bin/
+COPY etc/entrypoint.sh .
+
+# Labels
+LABEL org.opencontainers.image.source=${SOURCE}
+
+# Entrypoint when running the server
+ENTRYPOINT [ "/entrypoint.sh" ]
+CMD [ "/usr/local/bin/api" ]

etc/entrypoint.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+    echo "No command specified"
+    exit 1
+fi
+
+# Nomad: Create the /alloc/logs folder if it doesn't exist
+install -d -m 0755 /alloc/logs || exit 1
+
+# Run the command
+set -e
+exec "$@"