go1.18 and nbgv

.github/workflows/docker-publish.yml

@@ -30,6 +30,10 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
+      - uses: dotnet/nbgv@master
+        with:
+          setAllVars: true        
+
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
@@ -55,6 +59,8 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
+          build-args:
+            - VER=${{ env.NBGV_SimpleVersion }}
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -1,29 +1,19 @@
-FROM golang:1.17-alpine as builder
+FROM golang:1.18-stretch as builder
 
-RUN apk update \
-        && apk upgrade \
-        && apk add --no-cache \
-        ca-certificates git \
-        && update-ca-certificates 2>/dev/null
+ARG VER=devel
 
-ADD . /go/src/github.com/tg123/sshpiper/
-WORKDIR /go/src/github.com/tg123/sshpiper/sshpiperd
-RUN CGO_ENABLED=0 go build -ldflags "$(/go/src/github.com/tg123/sshpiper/sshpiperd/ldflags.sh)" -o /go/bin/sshpiperd
+ADD . /src/
+WORKDIR /src/sshpiperd
+RUN CGO_ENABLED=0 go build -ldflags "-X main.version=$VER" -o /sshpiperd
 
 
-FROM alpine:latest 
+FROM busybox
 LABEL maintainer="Boshi Lian<farmer1992@gmail.com>"
 
-RUN apk update \
-        && apk upgrade \
-        && apk add --no-cache \
-        ca-certificates \
-        && update-ca-certificates 2>/dev/null
-        
 RUN mkdir /etc/ssh/
 
 ADD entrypoint.sh /
-COPY --from=builder /go/bin/sshpiperd /
+COPY --from=builder /sshpiperd /
 EXPOSE 2222
 
 ENTRYPOINT ["/entrypoint.sh"]

sshpiperd/ldflags.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-cd $GOPATH/src/github.com/tg123/sshpiper
-
-githash=`git log --pretty=format:%h,%ad --name-only --date=short . | head -n 1`
-ver=`cat ver`
-
-echo "-X main.version=$ver -X main.githash=$githash"

sshpiperd/ver.go

@@ -2,12 +2,11 @@ package main
 
 import (
 	"os"
-	"runtime"
+	"runtime/debug"
 	"text/template"
 )
 
-var version = "DEV"
-var githash = "0000000000"
+var version = "(devel)"
 
 func showVersion() {
 	versionTemplate := template.Must(template.New("ver").Parse(`
@@ -17,15 +16,31 @@ https://github.com/tg123/sshpiper
 Version       : {{.VER}} 
 Go  Runtime   : {{.GOVER}}
 Git Commit    : {{.GITHASH}}
+Timestamp     : {{.TIMESTAMP}}
 `[1:]))
 
-	_ = versionTemplate.Execute(os.Stdout, struct {
-		VER     string
-		GOVER   string
-		GITHASH string
+	data := struct {
+		VER       string
+		GOVER     string
+		GITHASH   string
+		TIMESTAMP string
 	}{
-		VER:     version,
-		GITHASH: githash,
-		GOVER:   runtime.Version(),
-	})
+		VER: version,
+	}
+
+	bi, ok := debug.ReadBuildInfo()
+	if ok {
+		for _, s := range bi.Settings {
+			switch s.Key {
+			case "vcs.revision":
+				data.GITHASH = s.Value[:9]
+			case "vcs.time":
+				data.TIMESTAMP = s.Value
+			}
+		}
+
+		data.GOVER = bi.GoVersion
+	}
+
+	_ = versionTemplate.Execute(os.Stdout, data)
 }

version.json

@@ -0,0 +1,7 @@
+{
+    "$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
+    "version": "0.7",
+    "publicReleaseRefSpec": [
+        "^refs/heads/master$"
+    ]
+}