fix(init): conditionally set version in /etc/os-release (#97)

Author: andrewrynhard

initramfs/.conform.yaml

@@ -68,10 +68,10 @@ tasks:
         -o /{{ .Docker.CurrentStage }}-darwin-amd64
       {{ else }}
       RUN GOOS=linux GOARCH=amd64 go build -a \
-        -ldflags "-s -w -X {{ index .Variables "versionPath" }}.Name=Client -X {{ index .Variables "versionPath" }}.Tag=none -X {{ index .Variables "versionPath" }}.SH={{ .Git.SHA }}" \
+        -ldflags "-s -w -X {{ index .Variables "versionPath" }}.Name=Client -X {{ index .Variables "versionPath" }}.Tag=none -X {{ index .Variables "versionPath" }}.SHA={{ .Git.SHA }}" \
         -o /{{ .Docker.CurrentStage }}-linux-amd64
       RUN GOOS=darwin GOARCH=amd64 go build -a \
-        -ldflags "-s -w -X {{ index .Variables "versionPath" }}.Name=Client -X {{ index .Variables "versionPath" }}.Tag=none -X {{ index .Variables "versionPath" }}.SH={{ .Git.SHA }}" \
+        -ldflags "-s -w -X {{ index .Variables "versionPath" }}.Name=Client -X {{ index .Variables "versionPath" }}.Tag=none -X {{ index .Variables "versionPath" }}.SHA={{ .Git.SHA }}" \
         -o /{{ .Docker.CurrentStage }}-darwin-amd64
       {{ end }}
       RUN chmod +x /{{ .Docker.CurrentStage }}-linux-amd64

initramfs/cmd/init/pkg/rootfs/etc/etc.go

@@ -73,14 +73,21 @@ func ResolvConf(s string) (err error) {
 // OSRelease renders a valid /etc/os-release file and writes it to disk. The
 // node's OS Image field is reported by the node from /etc/os-release.
 func OSRelease(s string) (err error) {
+	var v string
+	switch version.Tag {
+	case "none":
+		v = version.SHA
+	default:
+		v = version.Tag
+	}
 	data := struct {
 		Name    string
 		ID      string
 		Version string
 	}{
 		Name:    version.Name,
 		ID:      strings.ToLower(version.Name),
-		Version: version.Tag,
+		Version: v,
 	}
 
 	tmpl, err := template.New("").Parse(osReleaseTemplate)