Create common errorID generation (#788)

Makefile

@@ -27,6 +27,10 @@ dev: build-ui-ifne
 	@echo "==> Building Boundary with dev and UI features enabled"
 	@CGO_ENABLED=$(CGO_ENABLED) BUILD_TAGS='$(BUILD_TAGS)' BOUNDARY_DEV_BUILD=1 sh -c "'$(CURDIR)/scripts/build.sh'"
 
+rand:
+	@echo "==> Generating random boundary error ID"
+	@go run scripts/errorid.go
+
 bin: BUILD_TAGS+=ui
 bin: build-ui
 	@echo "==> Building Boundary with UI features enabled"

scripts/errorid.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/hashicorp/vault/sdk/helper/base62"
+)
+
+const idLength = 10
+
+func main() {
+	rand, err := base62.Random(idLength)
+	if err != nil {
+		fmt.Printf("failed to generate error ID: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Println(rand)
+}