add dockerfile with multistage

.devcontainer/devcontainer.json

@@ -7,7 +7,7 @@
 	"build" : {
 		"dockerfile": "Dockerfile",
 		"options": [
-			"-t=godev"
+			"-t=godev:latest"
 		]
 	},
 	"workspaceMount": "source=${localWorkspaceFolder},target=/home/vscode/app,type=bind,consistency=cached",

Dockerfile

@@ -0,0 +1,29 @@
+FROM golang:tip-alpine3.22 AS builder
+COPY . /app
+WORKDIR /app
+RUN apk update --no-cache && apk add --no-cache \
+    && apk add --no-cache make
+
+RUN make build
+
+FROM alpine:3.22.3 AS prod
+
+ARG PROJECT_NAME=learn
+ARG APP_USER=${PROJECT_NAME}_user
+ARG APP_UID=10001
+ARG APP_GID=10001
+
+
+RUN addgroup -g ${APP_GID} ${APP_USER} && \
+    adduser -u ${APP_UID} \
+            -G ${APP_USER} \
+            -S \
+            -H \
+            -D ${APP_USER}
+
+COPY --from=builder /app/bin /srv/${PROJECT_NAME}
+RUN chown -R ${APP_USER}:${APP_USER} /srv/
+USER ${APP_USER}
+WORKDIR /srv/${PROJECT_NAME}
+
+CMD ["./learn"]

Makefile

@@ -0,0 +1,41 @@
+# Переменные
+# Имя бинарника (измените на ваше)
+BINARY_NAME := learn
+# Выходной каталог
+BUILD_DIR := bin
+# Директория с конфигами (например, config.yaml)
+CONFIG_DIR := config
+# Все Go-файлы
+GO_SRC := $(shell find . -name '*.go')
+GO_MOD := go.mod go.sum
+VERSION := $(shell git describe --tags --always)
+# Цель по умолчанию: сборка
+all: build
+
+# Сборка бинарника и копирование файлов
+build: $(BUILD_DIR)/$(BINARY_NAME)
+	@echo "Build completed"
+
+$(BUILD_DIR)/$(BINARY_NAME): $(GO_SRC) $(GO_MOD)
+	@mkdir -p $(BUILD_DIR)
+# Измените ./cmd/myapp на путь к main.go
+	CGO_ENABLED=0 GOARCH=amd64 go build -o $(BUILD_DIR)/$(BINARY_NAME) ./cmd/app/main.go  
+# Копируем конфиги (добавьте другие файлы по аналогии, e.g. cp static/* $(BUILD_DIR)/)
+	@mkdir $(BUILD_DIR)/$(CONFIG_DIR)/
+	@cp -r $(CONFIG_DIR)/*.yml $(BUILD_DIR)/$(CONFIG_DIR)/
+
+# Тестирование
+test:
+	go test -v ./...
+
+# Очистка
+clean:
+	rm -rf $(BUILD_DIR)
+	go clean
+
+# Docker-сборка (пример, если нужно собрать образ)
+docker-build: build
+	docker build -t $(BINARY_NAME):latest -f Dockerfile .
+	docker build -t $(BINARY_NAME):$(VERSION) -f Dockerfile .
+
+.PHONY: all build test clean docker-build

bin/config/config.yml

@@ -0,0 +1 @@
+API_KEY: some_secret_api_key_sss

cmd/app/main.go

@@ -1,9 +1,20 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+	"log"
+
+	"github.com/spf13/viper"
+)
 
 func main() {
-	fmt.Println("Hello world")
+	viper.AddConfigPath("config")
+	err := viper.ReadInConfig()
+	if err != nil {
+		log.Fatalf("Error loading file: %v", err.Error())
+	}
+	api_key := viper.GetString("API_KEY")
+	fmt.Println("Hello world, and API_KEY:", api_key)
 	c := fmt.Sprintf("Test text: %s", "formatted")
 	fmt.Printf("Some text: %s", c)
 }

config/config.yml

@@ -0,0 +1 @@
+API_KEY: some_secret_api_key_sss

go.mod

@@ -1,3 +1,19 @@
 module learn
 
 go 1.25.4
+
+require (
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
+	github.com/sagikazarmark/locafero v0.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/spf13/viper v1.21.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
+)

go.sum

@@ -0,0 +1,27 @@
+github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
+github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/go-viper/mapstructure/v2 v2.4.0 h1:EBsztssimR/CONLSZZ04E8qAkxNYq4Qp9LvH92wZUgs=
+github.com/go-viper/mapstructure/v2 v2.4.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4=
+github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
+github.com/sagikazarmark/locafero v0.11.0 h1:1iurJgmM9G3PA/I+wWYIOw/5SyBtxapeHDcg+AAIFXc=
+github.com/sagikazarmark/locafero v0.11.0/go.mod h1:nVIGvgyzw595SUSUE6tvCp3YYTeHs15MvlmU87WwIik=
+github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 h1:+jumHNA0Wrelhe64i8F6HNlS8pkoyMv5sreGx2Ry5Rw=
+github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8/go.mod h1:3n1Cwaq1E1/1lhQhtRK2ts/ZwZEhjcQeJQ1RuC6Q/8U=
+github.com/spf13/afero v1.15.0 h1:b/YBCLWAJdFWJTN9cLhiXXcD7mzKn9Dm86dNnfyQw1I=
+github.com/spf13/afero v1.15.0/go.mod h1:NC2ByUVxtQs4b3sIUphxK0NioZnmxgyCrfzeuq8lxMg=
+github.com/spf13/cast v1.10.0 h1:h2x0u2shc1QuLHfxi+cTJvs30+ZAHOGRic8uyGTDWxY=
+github.com/spf13/cast v1.10.0/go.mod h1:jNfB8QC9IA6ZuY2ZjDp0KtFO2LZZlg4S/7bzP6qqeHo=
+github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
+github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/viper v1.21.0 h1:x5S+0EU27Lbphp4UKm1C+1oQO+rKx36vfCoaVebLFSU=
+github.com/spf13/viper v1.21.0/go.mod h1:P0lhsswPGWD/1lZJ9ny3fYnVqxiegrlNrEmgLjbTCAY=
+github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
+github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
+go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
+golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=