Add plugin version to Vault backend

Signed-off-by: Martin Baillie <martin@baillie.id>

Author: martinbaillie

.goreleaser.yml

@@ -22,10 +22,10 @@ builds:
     ldflags:
       - -s
       - -w
-      - -extldflags
-      - -static
+      - -extldflags -static
       - -X {{.ModulePath}}/github.projectName={{.ProjectName}}
       - -X {{.ModulePath}}/github.projectDocs=https://{{.ModulePath}}
+      - -X {{.ModulePath}}/github.projectVersion={{.Version}}
       - -X github.com/prometheus/common/version.BuildDate={{.Date}}
       - -X github.com/prometheus/common/version.Revision={{.Commit}}
       - -X github.com/prometheus/common/version.Version={{.Version}}

flake.nix

@@ -44,7 +44,7 @@
           name = "vault-plugin-secrets-github";
           package = "github.com/martinbaillie/${name}";
           rev = self.rev or "dirty";
-          ver = if self ? "dirtyRev" then self.dirtyShortRev else self.shortRev;
+          ver = "v0.0.0-" + (if self ? "dirtyRev" then self.dirtyShortRev else self.shortRev);
           date = self.lastModifiedDate or "19700101";
         in
         {
@@ -68,6 +68,7 @@
               "-extld ld"
               "-extldflags -static"
               "-X ${package}/github.projectName=${name}"
+              "-X ${package}/github.projectVersion=${ver}"
               "-X ${package}/github.projectDocs=https://${package}"
               "-X github.com/prometheus/common/version.BuildDate=${date}"
               "-X github.com/prometheus/common/version.Revision=${rev}"

github/backend.go

@@ -11,6 +11,9 @@ import (
 	"github.com/hashicorp/vault/sdk/logical"
 )
 
+// Linker-provided project/build information.
+var projectVersion string
+
 const backendHelp = `
 GitHub Apps Token Backend
 `
@@ -68,6 +71,7 @@ func Factory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend,
 			// Renew:
 		}},
 		Invalidate: b.Invalidate,
+		RunningVersion: projectVersion,
 	}
 
 	if conf == nil {