Merge pull request onflow#328 from onflow/implement-web3-client-version

Return the released version in `web3_clientVersion`

.github/workflows/build.yml

@@ -2,8 +2,8 @@ name: "Build & Push EVM Gateway Image to Public Repo"
 
 on:
   push:
-    branches:
-      - main
+    tags:
+      - '*'
 
 env:
   DOCKER_IMAGE_URL: ${{ vars.REPO_DOCKER_IMAGE_URL }}:${{ github.sha }}
@@ -15,7 +15,10 @@ jobs:
       id-token: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
 
       - name: Google auth
         id: auth
@@ -33,5 +36,5 @@ jobs:
       - name: Docker Auth
         run: |-
           gcloud auth configure-docker ${{ vars.GAR_LOCATION }}-docker.pkg.dev
-          docker build -t ${{ env.DOCKER_IMAGE_URL }} --file Dockerfile .
+          docker build -t ${{ env.DOCKER_IMAGE_URL }} --build-arg GATEWAY_VERSION=$(git describe --tags --abbrev=0 2>/dev/null) --file Dockerfile .
           docker push ${{ env.DOCKER_IMAGE_URL }}

Dockerfile

@@ -2,6 +2,8 @@
 
 FROM golang:1.20.0 as app-builder
 
+ARG GATEWAY_VERSION="v0.1.0"
+
 # Build the app binary in /app
 WORKDIR /app
 
@@ -13,7 +15,7 @@ RUN go mod download
 RUN go mod verify
 
 # Build binary
-RUN CGO_ENABLED=1 go build -o bin ./cmd/main/main.go
+RUN CGO_ENABLED=1 go build -o bin -ldflags="-X github.com/onflow/flow-evm-gateway/api.Version=${GATEWAY_VERSION}" ./cmd/main/main.go
 RUN chmod a+x bin
 
 # RUN APP

api/web3.go

@@ -1,16 +1,20 @@
 package api
 
 import (
+	"fmt"
+
 	"github.com/onflow/go-ethereum/common/hexutil"
 	"github.com/onflow/go-ethereum/crypto"
 )
 
+var Version = "development"
+
 // Web3API offers helper utils
 type Web3API struct{}
 
 // ClientVersion returns the node name
 func (s *Web3API) ClientVersion() string {
-	return "flow-evm-gateway@v0.1.0"
+	return fmt.Sprintf("flow-evm-gateway@%s", Version)
 }
 
 // Sha3 applies the ethereum sha3 implementation on the input.