Add go buildinfo to velero to assist with #8397

``` make container && docker run --rm velero/velero:main /velero version --client-only [+] Building 60.0s (18/18) FINISHED docker-container:colima-multiplat => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 2.37kB 0.0s => [internal] load metadata for docker.io/paketobuildpacks/run-jammy-tiny:0.2.52 3.6s => [internal] load metadata for docker.io/library/golang:1.22.8-bookworm 3.4s => [auth] paketobuildpacks/run-jammy-tiny:pull token for registry-1.docker.io 0.0s => [auth] library/golang:pull token for registry-1.docker.io 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 60B 0.0s => CACHED [stage-2 1/3] FROM docker.io/paketobuildpacks/run-jammy-tiny:0.2.52@sha256:402b925a81a4c6985438fd37d0b22022ca688e528bbd46a38831a3702067cced 0.0s => => resolve docker.io/paketobuildpacks/run-jammy-tiny:0.2.52@sha256:402b925a81a4c6985438fd37d0b22022ca688e528bbd46a38831a3702067cced 0.0s => CACHED [restic-builder 1/3] FROM docker.io/library/golang:1.22.8-bookworm@sha256:3f0457a0a56a926d93c2baf4cf0057a645e8ff69ff31314080fcc62389643b8e 0.0s => => resolve docker.io/library/golang:1.22.8-bookworm@sha256:3f0457a0a56a926d93c2baf4cf0057a645e8ff69ff31314080fcc62389643b8e 0.0s => [internal] load build context 0.2s => => transferring context: 883.86kB 0.2s => CACHED [velero-builder 2/4] WORKDIR /go/src/github.com/vmware-tanzu/velero 0.0s => [velero-builder 3/4] COPY . /go/src/github.com/vmware-tanzu/velero 1.6s => [restic-builder 2/3] COPY . /go/src/github.com/vmware-tanzu/velero 1.6s => [velero-builder 4/4] RUN mkdir -p /output/usr/bin && export GOARM=$( echo "" | cut -c2-) && go build -o /output/velero -ldflags "-X github.com/vmware 49.7s => [restic-builder 3/3] RUN mkdir -p /output/usr/bin && export GOARM=$(echo "" | cut -c2-) && /go/src/github.com/vmware-tanzu/velero/hack/build-restic.sh && 34.6s => [stage-2 2/3] COPY --from=velero-builder /output / 0.2s => [stage-2 3/3] COPY --from=restic-builder /output / 0.1s => exporting to docker image format 4.1s => => exporting layers 2.7s => => exporting manifest sha256:5387d1a59b10970f9d0800ba960c4eb0f008e0d2bba5a9498b009ac478e5f4d4 0.0s => => exporting config sha256:f29cee5131777c8dc47571fc475f1abb2984ff1657b51c3a720c8aa453b195f2 0.0s => => sending tarball 1.4s => importing to docker 0.5s => => loading layer 4e2166c05ab9 491.52kB / 45.94MB 0.5s => => loading layer dd8fc23784d7 98.30kB / 8.82MB 0.1s 1 warning found (use --debug to expand): - UndefinedVar: Usage of undefined variable '$GOPROXY' (line 58) container: velero/velero:main WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested Client: Version: main Git commit: 303d239819259b54ecd264eef176b9dc55db3871-dirty Go version: go1.22.8 ```
vmware-tanzu · Nov 12, 2024 · 7faca77 · 7faca77
1 parent 1d4f147
commit 7faca77
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Showing 5 changed files with 26 additions and 3 deletions.
diff --git a/changelogs/unreleased/8399-kaovilai b/changelogs/unreleased/8399-kaovilai
@@ -0,0 +1 @@
+Add golang buildinfo to velero to check toolchain used. Reduce minimum go toolchain in go.mod
diff --git a/go.mod b/go.mod
@@ -1,6 +1,10 @@
 module github.com/vmware-tanzu/velero
 
-go 1.22.8
+// Do not pin patch version here. Leave patch at X.Y.0
+// Use env GOTOOLCHAIN=auto to use newer of go cli used to build Velero.
+// or GOTOOLCHAIN=goX.Y.Z to use a specific toolchain version
+// See: https://go.dev/doc/toolchain#select and https://github.com/vmware-tanzu/velero/issues/8397
+go 1.22.0
 
 require (
 	cloud.google.com/go/storage v1.40.0

diff --git a/pkg/buildinfo/buildinfo.go b/pkg/buildinfo/buildinfo.go
@@ -19,12 +19,18 @@ limitations under the License.
 // worrying about introducing circular dependencies.
 package buildinfo
 
-import "fmt"
+import (
+	"fmt"
+	"runtime/debug"
+)
 
 var (
 	// Version is the current version of Velero, set by the go linker's -X flag at build time.
 	Version string
 
+	// goVersion is the version of Go that was used to build Velero
+	goBuildInfo *debug.BuildInfo
+
 	// GitSHA is the actual commit that is being built, set by the go linker's -X flag at build time.
 	GitSHA string
 
@@ -44,3 +50,14 @@ func FormattedGitSHA() string {
 	}
 	return GitSHA
 }
+
+func GoVersion() string {
+	if goBuildInfo == nil {
+		var ok bool
+		goBuildInfo, ok = debug.ReadBuildInfo()
+		if !ok {
+			return "cannot read Go BuildInfo"
+		}
+	}
+	return goBuildInfo.GoVersion
+}
diff --git a/pkg/cmd/cli/version/version.go b/pkg/cmd/cli/version/version.go
@@ -69,6 +69,7 @@ func printVersion(w io.Writer, clientOnly bool, kbClient kbclient.Client, server
 	fmt.Fprintln(w, "Client:")
 	fmt.Fprintf(w, "\tVersion: %s\n", buildinfo.Version)
 	fmt.Fprintf(w, "\tGit commit: %s\n", buildinfo.FormattedGitSHA())
+	fmt.Fprintf(w, "\tGo version: %s\n", buildinfo.GoVersion())
 
 	if clientOnly {
 		return

diff --git a/pkg/cmd/server/server.go b/pkg/cmd/server/server.go
@@ -109,7 +109,7 @@ func NewCommand(f client.Factory) *cobra.Command {
 
 			logger.Infof("setting log-level to %s", strings.ToUpper(logLevel.String()))
 
-			logger.Infof("Starting Velero server %s (%s)", buildinfo.Version, buildinfo.FormattedGitSHA())
+			logger.Infof("Starting Velero server %s (%s) go-version: %s", buildinfo.Version, buildinfo.FormattedGitSHA(), buildinfo.GoVersion())
 			if len(features.All()) > 0 {
 				logger.Infof("%d feature flags enabled %s", len(features.All()), features.All())
 			} else {
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Add golang buildinfo to velero to check toolchain used. Reduce minimum go toolchain in go.mod