Version

* log on startup
* display on about page
* use compile flag
* set with git tag value

.drone.yml

@@ -30,6 +30,7 @@ steps:
     settings:
       registry: reg.meutel.net
       repo: reg.meutel.net/go-bouquins
+      build_args: "version=$DRONE_TAG"
       username: 
         from_secret: registry_login
       password: 
@@ -73,6 +74,6 @@ trigger:
 
 ---
 kind: signature
-hmac: 402ef53d245969c2df4d6ec14d51d3d9665856c8fa0ec8248755a209fb66ff36
+hmac: 6d31a8c73df2a63f6f04334ebf20ad9c7e4a992acb15097b1f887433748f0fd7
 
 ...

Dockerfile

@@ -1,11 +1,12 @@
 FROM golang as builder
 
+ARG version
 WORKDIR /go/src/meutel.net/meutel/go-bouquins
 
 COPY . .
 
 RUN GO111MODULE=on go get .
-RUN GO111MODULE=on CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -o app .
+RUN GO111MODULE=on CGO_ENABLED=1 GOOS=linux go build -ldflags "-X main.version=$version" -a -installsuffix cgo -o app .
 RUN curl -X POST -s --data-urlencode 'input@assets/css/bouquins.css' https://cssminifier.com/raw > assets/css/bouquins.min.css
 
 # deployment image