Merge pull request #3 from usagiga/feat/use-docker-compose-watch

Use Docker Compose Watch

.dockerignore

@@ -0,0 +1,17 @@
+# To build images safer and faster,
+#   - Ignore large directories in `.dockerignore` (Docker can ignore directory recursively)
+#   - Avoid using '!' in `.dockerignore` (prevent from O(kN) directory travarsal)
+#   - Files required by images are written in `Dockerfile` (keep image small and secure)
+#       - As of Dockerfile 1.7-lab, use `COPY --parents ["**/*.go", "./"]`
+#   - Files not required when using Compose Watch, write ignore rules in `compose.yml` (prevent from rebuilding redundantly)
+#       - Unlike Dockerfile, we cannot write whitelist because Compose Watch is incompatible with glob pattern and --parents flag
+
+**/.git
+**/.idea
+**/.vscode
+
+.editorconfig.d
+.github
+docs
+etc
+scripts

.ecrc

@@ -0,0 +1,22 @@
+{
+  "Verbose": false,
+  "IgnoreDefaults": false,
+  "Exclude": [
+    "^\\.ecrc$",
+    "\\.sln$",
+    "\\.vcxproj$",
+    "\\.vcxproj.filters$",
+    "Resource\\.rc$",
+    "go.mod",
+    "go.sum"
+  ],
+  "SpacesAfterTabs": false,
+  "Disable": {
+    "EndOfLine": false,
+    "Indentation": false,
+    "IndentSize": false,
+    "InsertFinalNewline": false,
+    "TrimTrailingWhitespace": false,
+    "MaxLineLength": false
+  }
+}

.github/workflows/editorconfig.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   check-format:
-    name: "Run editorconfig-checker"
+    name: "EditorConfig (editorconfig-checker)"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

.github/workflows/go.yml

@@ -5,14 +5,14 @@ on:
   pull_request:
 
 jobs:
-  test:
+  build-test-lint:
     name: "Go (Test / Vet / Build)"
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v4"
       - uses: "actions/setup-go@v4"
         with:
-          go-version: "1.22.0"
+          go-version-file: "go.mod"
       - name: "vet"
         run: "make lint"
       - name: "test"

.gitignore

@@ -1,10 +1,19 @@
+# Binary
+/go-template
+
+# Logs
+*.log
+
+# Golang Boilerplate from GitHub Community
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
 # Binaries for programs and plugins
 *.exe
 *.exe~
 *.dll
 *.so
 *.dylib
-go-template
 
 # Test binary, built with `go test -c`
 *.test
@@ -13,11 +22,7 @@ go-template
 *.out
 
 # Dependency directories (remove the comment below to include it)
-vendor/
-
-# cosmtrek/air
-/tmp
-
-# Logs
-*.log
+# vendor/
 
+# Go workspace file
+go.work

.prototools

@@ -0,0 +1 @@
+go = "1.22.4"

DEVELOPERS.md

@@ -0,0 +1,160 @@
+# ${REPO_NAME} Development Guide
+
+This document aims to prepare your development environment for ${REPO_NAME}.
+
+## Setup
+
+## Install Dependencies
+
+- Go >= 1.22.4
+  - (Recommended) [proto](https://moonrepo.dev/proto) for managing runtime
+- Docker
+  - Ensure some features
+    - [Compose Spec](https://www.compose-spec.io/)
+    - `compose watch`
+    - `sync+restart`
+    - `COPY --parents` with Dockerfile 1.7-lab
+    - (Optional) BuildKit
+- Git
+
+<details>
+
+<summary>Detailed Docker Install Instruction</summary>
+
+In ArchLinux, install these packages:
+
+- https://archlinux.org/packages/extra/x86_64/docker/
+- https://archlinux.org/packages/extra/x86_64/docker-compose/
+- https://archlinux.org/packages/extra/x86_64/docker-buildx/
+
+As a shorthand, run it:
+
+```sh
+$ pacman -S docker docker-compose docker-buildx
+
+$ sudo systemctl enable docker
+$ sudo systemctl start docker
+```
+
+See details: [Docker - ArchWiki](https://wiki.archlinux.org/title/Docker)
+
+In the other distros/platforms, please ensure that Docker toolchains are installed enabled features described above.
+
+For example, the author is using this versions.
+Set up these versions or higher :pray:
+
+```sh
+# Docker CLI / Engine
+$ docker version
+Client:
+  Version:           26.1.4
+  API version:       1.45
+  Go version:        go1.22.3
+  Git commit:        5650f9b102
+  Built:             Thu Jun  6 18:42:55 2024
+  OS/Arch:           linux/amd64
+  Context:           default
+
+Server:
+  Engine:
+    Version:          26.1.4
+    API version:      1.45 (minimum version 1.24)
+    Go version:       go1.22.3
+    Git commit:       de5c9cf0b9
+    Built:            Thu Jun  6 18:42:55 2024
+    OS/Arch:          linux/amd64
+    Experimental:     false
+  containerd:
+    Version:          v1.7.18
+    GitCommit:        ae71819c4f5e67bb4d5ae76a6b735f29cc25774e.m
+  runc:
+    Version:          1.1.12
+    GitCommit:
+  docker-init:
+    Version:          0.19.0
+    GitCommit:        de40ad0
+
+# Docker Compose
+$ docker compose version
+Docker Compose version 2.27.1
+
+# BuildKit
+$ docker buildx inspect
+Name:          default
+Driver:        docker
+Last Activity: 2024-06-17 08:26:09 +0000 UTC
+
+Nodes:
+Name:             default
+Endpoint:         default
+Status:           running
+BuildKit version: v0.13.2
+Platforms:        linux/amd64, linux/amd64/v2, linux/amd64/v3, linux/386
+Labels:
+  org.mobyproject.buildkit.worker.moby.host-gateway-ip: 172.17.0.1
+```
+
+</details>
+
+### Optional Dependencies
+
+- GNU Make
+- EditorConfig
+- Frontend for [delve](https://github.com/go-delve/delve) (i.e. IDEs)
+- Additional Linter / Vulnerability Checker
+  - hadolint
+  - Dockle
+  - Trivy
+  - actionlint
+- (Recommended) GoLand (Jetbrains IDE)
+  - (TBU) Several run configurations are available
+    - See also: [GoLand blog](https://blog.jetbrains.com/go/2019/02/06/debugging-with-goland-getting-started/#debugging-a-running-application-on-a-remote-machine)
+
+# Build Binary
+
+```sh
+$ make build
+```
+
+# Build Production Image
+
+```sh
+$ make build_image
+```
+
+# Run a Development Build Locally with Debugger
+
+```sh
+$ make watch_dev
+```
+
+This command prepares containers based on distroless:debug,
+then build/run binary with [delve](https://github.com/go-delve/delve) on `:2345`.
+And then, enabled hot reload using Compose Watch (rebuild mode),
+so that ensure to prune dangling images / networks / build caches manually.
+
+# Run a Go Test with Debugger
+
+```sh
+$ make watch_test
+```
+
+This command prepares containers based on golang official image,
+then run `go test -v ./...` with [delve](https://github.com/go-delve/delve) on `:2346`.
+And then, enabled hot reload using Compose Watch (`sync+restart` mode).
+
+:warning: This instruction uses the port **2346**. It is not default of delve.
+
+If you want to change arguments of `go test`, override it using Docker `CMD` instruction. Such as:
+
+- `docker compose run [SERVICE] [COMMAND] [ARGS]`
+- `commands` in `compose.yml`
+  - [Extend your Compose file | Docker Docs](https://docs.docker.com/compose/multiple-compose-files/extends/)
+
+# How to Use This Template
+
+- Replace variables
+  - `${REPO_NAME}` -> Repository Name
+  - `${REPO_DESC}` -> Repository Description
+  - `go-template` -> Name of binary / package / repository
+- NOW GO :running: :dash:

Dockerfile

@@ -1,10 +1,67 @@
-FROM golang:1.22
+#syntax=docker/dockerfile:1.7-labs
 
+ARG BUILD_BASE="golang"
+ARG BUILD_BASE_VERSION="1.22.4-bookworm"
+
+ARG PROD_BASE="gcr.io/distroless/base-debian12"
+ARG PROD_BASE_VERSION="nonroot"
+
+ARG DEV_BASE="${PROD_BASE}"
+ARG DEV_BASE_VERSION="debug-nonroot"
+
+# Prepare Sources
+FROM ${BUILD_BASE}:${BUILD_BASE_VERSION} as src
 WORKDIR /src
 
+# go.mod / go.sum
+COPY ["go.*", "./"]
+RUN go mod download
+
+# hadolint ignore=DL3021
+COPY --parents ["**/*.go", "Makefile", "./"]
+
+# Build (Development)
+FROM src as build_dev
+
+# To build faster, installing delve partially
 RUN go install github.com/go-delve/delve/cmd/dlv@latest
-RUN go install github.com/cosmtrek/air@latest
 
-COPY . /src
+# to use delve, disable optimizations/inlining
+ENV GCFLAGS="all=-N -l"
+RUN make build
+
+# Build (Production)
+FROM src as build_prod
+RUN make build
+
+# Runner (Development)
+FROM ${DEV_BASE}:${DEV_BASE_VERSION} as dev
+
+WORKDIR /src
+
+EXPOSE 2345
+
+COPY --from=build_dev ["/go/bin/dlv", "/usr/bin/"]
+COPY --from=build_dev ["/src/go-template", "./"]
+
+ENTRYPOINT ["dlv", "--listen=:2345", "--headless=true", "--api-version=2", "--accept-multiclient", "exec", "./go-template"]
+
+# Runner (Go Test)
+FROM build_dev as test
+
+WORKDIR /src
+
+EXPOSE 2346
+
+# Run all tests
+# To test as you need, overwrite CMD
+ENTRYPOINT ["dlv", "--listen=:2346", "--headless=true", "--api-version=2", "--accept-multiclient", "test", "--"]
+CMD ["-test.v", "./..."]
+
+# Runner (Production)
+FROM ${PROD_BASE}:${PROD_BASE_VERSION} as prod
+WORKDIR /src
+
+COPY --from=build_prod ["/src/go-template", "./"]
 
-CMD ["air"]
+ENTRYPOINT ["./go-template"]