dump

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    allow:
+      - dependency-type: "all"
+    schedule:
+      interval: "monthly"
+    reviewers:
+      - "ipfaze"
+    groups:
+      dependencies:
+        patterns:
+          - "*"

Dockerfile

@@ -0,0 +1,8 @@
+FROM golang:1.20
+
+RUN go install github.com/cespare/reflex@latest
+ADD . /go/src/github.com/Scalingo/sample-go-gin
+WORKDIR /go/src/github.com/Scalingo/sample-go-gin
+EXPOSE 3000
+RUN go install -buildvcs=false
+CMD /go/bin/sample-go-gin

Procfile

@@ -0,0 +1 @@
+web: sample-go-gin

README.md

@@ -0,0 +1,27 @@
+# Sample Application with Go and Gin
+
+This sample is running on: https://go-gin.is-easy-on-scalingo.com/
+
+## Deploy via Git
+
+Create an application on https://scalingo.com, then:
+
+```shell
+scalingo --app my-app git-setup
+git push scalingo master
+```
+
+And that's it!
+
+## Deploy via One-Click
+
+[![Deploy to Scalingo](https://cdn.scalingo.com/deploy/button.svg)](https://my.scalingo.com/deploy)
+
+## Running Locally
+
+```shell
+docker-compose up
+```
+
+The app listens by default on the port 3000 or the one defined in the `PORT`
+environment variable.

docker-compose.yml

@@ -0,0 +1,11 @@
+version: '2'
+services:
+  sample-go-gin:
+    build: .
+    volumes:
+      - ./:/go/src/github.com/Scalingo/sample-go-gin
+    ports:
+      - 3000:3000
+    environment:
+      PORT: 3000
+    command: reflex -r '\.go$$' -s -- sh -c 'go install -buildvcs=false -race && /go/bin/sample-go-gin'

go.mod

@@ -0,0 +1,31 @@
+module github.com/Scalingo/sample-go-gin
+
+go 1.20
+
+require github.com/gin-gonic/gin v1.9.0
+
+require (
+	github.com/bytedance/sonic v1.8.0 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.11.2 // indirect
+	github.com/goccy/go-json v0.10.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.9 // indirect
+	golang.org/x/arch v0.0.0-20210923205945-b76863e36670 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,81 @@
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+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func isPrime(value int) bool {
+	for i := 2; i <= value/2; i++ {
+		if value%i == 0 {
+			return false
+		}
+	}
+	return value > 1
+}
+
+func main() {
+	m := gin.Default()
+	m.LoadHTMLGlob("templates/*")
+
+	m.GET("/", func(c *gin.Context) {
+		waitQuery := c.Request.URL.Query().Get("wait")
+		primeQuery := c.Request.URL.Query().Get("prime")
+
+		if waitQuery != "" {
+			sleep, _ := strconv.Atoi(waitQuery)
+			log.Printf("Sleep for %d seconds\n", sleep)
+			time.Sleep(time.Duration(sleep) * time.Second)
+		}
+		if primeQuery != "" {
+			val, _ := strconv.Atoi(primeQuery)
+			log.Printf("Is %d prime: %t", val, isPrime(val))
+		}
+		c.HTML(http.StatusOK, "index.tmpl", nil)
+	})
+
+	if os.Getenv("PANIC") == "true" {
+		panic("this is crashing")
+	}
+
+	port := "3000"
+	if os.Getenv("PORT") != "" {
+		port = os.Getenv("PORT")
+	}
+
+	listener, err := net.Listen("tcp", ":"+port)
+	if err != nil {
+		panic(err)
+	}
+
+	go http.Serve(listener, m)
+	log.Println("Listening on 0.0.0.0:" + port)
+
+	sigs := make(chan os.Signal)
+	signal.Notify(sigs, syscall.SIGTERM)
+	<-sigs
+	fmt.Println("SIGTERM, time to shutdown")
+	listener.Close()
+}