Initial commit

.drone.yml

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+---
+kind: pipeline
+name: test
+
+steps:
+  - name: test
+    image: golang:1.21
+    environment:
+      VERSION: ${DRONE_TAG:-${DRONE_COMMIT}}
+    commands:
+      - make test
+
+  - name: check
+    image: iamthefij/drone-pre-commit:personal
+
+---
+kind: pipeline
+name: publish
+
+depends_on:
+  - test
+
+trigger:
+  event:
+    - push
+    - tag
+  refs:
+    - refs/heads/master
+    - refs/tags/v*
+
+steps:
+  - name: build all binaries
+    image: golang:1.21
+    environment:
+      VERSION: ${DRONE_TAG:-${DRONE_COMMIT}}
+    commands:
+      - make all
+
+  - name: compress binaries for release
+    image: ubuntu
+    commands:
+      - find ./dist -type f -executable -execdir tar -czvf {}.tar.gz {} \;
+    when:
+      event: tag
+
+  - name: upload gitea release
+    image: plugins/gitea-release
+    settings:
+      title: ${DRONE_TAG}
+      files: dist/*.tar.gz
+      checksum:
+        - md5
+        - sha1
+        - sha256
+        - sha512
+      base_url:
+        from_secret: gitea_base_url
+      api_key:
+        from_secret: gitea_token
+    when:
+      event: tag
+
+  - name: push images
+    image: thegeeklab/drone-docker-buildx
+    settings:
+      repo: ${REPO_OWNER}/${REPO_NAME}
+      auto_tag: true
+      platforms:
+        - linux/amd64
+        - linux/arm64
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+
+---
+kind: pipeline
+name: notify
+
+depends_on:
+  - test
+  - publish
+
+trigger:
+  status:
+    - failure
+
+steps:
+
+  - name: notify
+    image: drillster/drone-email
+    settings:
+      host:
+        from_secret: SMTP_HOST  # pragma: whitelist secret
+      username:
+        from_secret: SMTP_USER  # pragma: whitelist secret
+      password:
+        from_secret: SMTP_PASS  # pragma: whitelist secret
+      from: drone@iamthefij.com

.gitignore

@@ -0,0 +1,20 @@
+# ---> Go
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Compiled output
+dist/
+nomad-var-dirsync

.golangci.yml

@@ -0,0 +1,48 @@
+---
+linters:
+  enable:
+    - asciicheck
+    - bodyclose
+    - dogsled
+    - dupl
+    - exhaustive
+    - gochecknoinits
+    - gocognit
+    - gocritic
+    - gocyclo
+    - goerr113
+    - gofumpt
+    - goimports
+    - gomnd
+    - goprintffuncname
+    # - gosec
+    # - ifshort
+    - interfacer
+    - maligned
+    - misspell
+    - nakedret
+    - nestif
+    - nlreturn
+    - noctx
+    - unparam
+    - wsl
+    # - errorlint
+  disable:
+    - gochecknoglobals
+
+linters-settings:
+  gosec:
+    excludes:
+      - G204
+#   gomnd:
+#     settings:
+#       mnd:
+#         ignored-functions: math.*
+
+issues:
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - errcheck
+        - gosec
+        - maligned

.pre-commit-config.yaml

@@ -0,0 +1,22 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-yaml
+        args:
+          - --allow-multiple-documents
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-merge-conflict
+  - repo: https://github.com/dnephin/pre-commit-golang
+    rev: v0.5.1
+    hooks:
+      - id: go-fmt
+      - id: go-imports
+      - id: golangci-lint
+  - repo: https://github.com/hadolint/hadolint
+    rev: v2.12.1-beta
+    hooks:
+      - id: hadolint

Dockerfile

@@ -0,0 +1,18 @@
+ARG TARGETOS
+ARG TARGETARCH
+
+FROM alpine:3.19
+
+RUN mkdir /app
+WORKDIR /app/
+
+# Add user for running as non-root
+RUN addgroup -S nomad-var-dirsync && adduser -S nomad-var-dirsync -G nomad-var-dirsync
+
+# Copy binary in
+COPY ./dist/nomad-var-dirsync-TARGETOS-TARGETARCH ./nomad-var-dirsync
+
+# Drop to non-root user
+USER nomad-var-dirsync
+
+ENTRYPOINT [ "./nomad-var-dirsync" ]

Dockerfile.multi-stage

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+ARG TARGETOS
+ARG TARGETARCH
+
+FROM golang:1.21-alpine AS builder
+
+RUN apk add --no-cache git=~2
+
+RUN mkdir /app
+WORKDIR /app
+
+COPY ./go.mod ./go.sum /app/
+RUN go mod download
+
+COPY ./*.go /app/
+
+ARG VERSION=dev
+ENV CGO_ENABLED=0 GOOS=TARGETOS GOARCH=TARGETARCH
+RUN go build -ldflags "-X main.version=VERSION" -a -installsuffix nocgo -o nomad-var-dirsync .
+
+FROM REPO/alpine:3.19
+RUN mkdir /app
+WORKDIR /app/
+
+# Copy binary in
+COPY --from=builder /app/nomad-var-dirsync .
+
+# Add user for running as non-root
+RUN addgroup -S nomad-var-dirsync && adduser -S nomad-var-dirsync -G nomad-var-dirsync
+
+# Drop to non-root user
+USER nomad-var-dirsync
+
+ENTRYPOINT [ "./nomad-var-dirsync" ]
+
+# vim: set filetype=dockerfile:

LICENSE

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2021 $REPO_OWNER
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Makefile

@@ -0,0 +1,92 @@
+APP_NAME = nomad-var-dirsync
+DOCKER_TAG ?= $(APP_NAME)-USER
+VERSION ?= $(shell git describe --tags --dirty)
+GOFILES = *.go
+# Multi-arch targets are generated from this
+TARGET_ALIAS = $(APP_NAME)-linux-amd64 $(APP_NAME)-linux-arm64 $(APP_NAME)-darwin-amd64 $(APP_NAME)-darwin-arm64
+TARGETS = $(addprefix dist/,$(TARGET_ALIAS))
+#
+# Default make target will run tests
+.DEFAULT_GOAL = test
+
+# Build all static Minitor binaries
+.PHONY: all
+all: $(TARGETS)
+
+# Build all static Linux Minitor binaries
+.PHONY: all-linux
+all-linux: $(filter dist/$(APP_NAME)-linux-%,$(TARGETS))
+
+# Build nomad-var-dirsync for the current machine
+$(APP_NAME): $(GOFILES)
+	@echo Version: $(VERSION)
+	go build -ldflags '-X "main.version=$(VERSION)"' -o $(APP_NAME)
+
+.PHONY: build
+build: $(APP_NAME)
+
+# Run all tests
+.PHONY: test
+test:
+	go test -coverprofile=coverage.out
+	go tool cover -func=coverage.out
+	@go tool cover -func=coverage.out | awk -v target=80.0% \
+		'/^total:/ { print "Total coverage: " $3 " Minimum coverage: " target; if ($3+0.0 >= target+0.0) print "ok"; else { print "fail"; exit 1; } }'
+
+# Installs pre-commit hooks
+.PHONY: install-hooks
+install-hooks:
+	pre-commit install --install-hooks
+
+# Runs pre-commit checks on files
+.PHONY: check
+check:
+	pre-commit run --all-files
+
+.PHONY: clean
+clean:
+	rm -f ./$(APP_NAME)
+	rm -f ./coverage.out
+	rm -fr ./dist
+
+## Multi-arch targets
+$(TARGETS): $(GOFILES)
+	mkdir -p ./dist
+	GOOS=$(word 2, $(subst -, ,$(@))) GOARCH=$(word 3, $(subst -, ,$(@))) CGO_ENABLED=0 \
+		 go build -ldflags '-X "main.version=$(VERSION)"' -a -installsuffix nocgo \
+		 -o $@
+
+.PHONY: $(TARGET_ALIAS)
+$(TARGET_ALIAS):
+	$(MAKE) $(addprefix dist/,$@)
+
+# Docker targets
+.PHONY: docker-build
+docker-build:
+	docker build -f ./Dockerfile.multi-stage -t $(DOCKER_TAG) .
+
+.PHONY: docker-run
+docker-run: docker-build
+	docker run --rm -v $(shell pwd)/config.yml:/root/config.yml $(DOCKER_TAG)
+
+# Arch specific docker build targets
+.PHONY: docker-build-arm
+docker-build-amd64: dist/$(APP_NAME)-linux-amd64
+	docker build --platform linux/amd64 . -t DOCKER_TAG-linux-amd64
+
+.PHONY: docker-build-arm64
+docker-build-arm64: dist/$(APP_NAME)-linux-arm64
+	docker build --build-arg REPO=arm64v8 --build-arg ARCH=arm64 . -t DOCKER_TAG-linux-arm64
+
+# Cross run on host architechture
+.PHONY: docker-run-amd64
+docker-run-amd64: docker-build-amd64
+	docker run --rm -v /var/run/docker.sock:/var/run/docker.sock --name $(DOCKER_TAG)-run DOCKER_TAG-linux-amd64
+
+.PHONY: docker-run-arm
+docker-run-arm: docker-build-arm
+	docker run --rm -v /var/run/docker.sock:/var/run/docker.sock --name $(DOCKER_TAG)-run DOCKER_TAG-linux-arm
+
+.PHONY: docker-run-arm64
+docker-run-arm64: docker-build-arm64
+	docker run --rm -v /var/run/docker.sock:/var/run/docker.sock --name $(DOCKER_TAG)-run DOCKER_TAG-linux-arm64

README.md

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+# [nomad-var-dirsync](/iamthefij/nomad-var-dirsync)
+
+Sync a directory with Nomad Variables

go.mod

@@ -0,0 +1,6 @@
+module git.iamthefij.com/iamthefij/nomad-var-dirsync
+
+go 1.21
+
+require (
+)

main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+)
+
+var (
+	// version of nomad-var-dirsync being run
+	version = "dev"
+)
+
+func main() {
+	showVersion := flag.Bool("version", false, "Display the version of nomad-var-dirsync and exit")
+	flag.Parse()
+
+	// Print version if flag is provided
+	if *showVersion {
+		fmt.Println("nomad-var-dirsync version:", version)
+
+		return
+	}
+}