dynamic version

requirements.tf

@@ -14,5 +14,9 @@ terraform {
       source  = "hashicorp/kubernetes"
       version = ">= 2.23.0"
     }
+    null = {
+      source  = "hashicorp/null"
+      version = ">= 3.2.1"
+    }
   }
 }

version.tf

@@ -1,4 +1,27 @@
+resource "null_resource" "git_version" {
+  triggers = {
+    # Force this to run on every apply to get the latest tag value
+    always_run = timestamp()
+  }
+
+  provisioner "local-exec" {
+    command    = "git describe --tags --abbrev=0 2>/dev/null || echo 'unknown' > ${path.module}/.git_tag"
+    on_failure = continue
+  }
+}
+
+resource "null_resource" "module_name" {
+  triggers = {
+    module_path = path.module
+  }
+
+  provisioner "local-exec" {
+    command    = "basename $(pwd) > ${path.module}/.module_name"
+    on_failure = continue
+  }
+}
+
 locals {
-  module_name    = "tfmod-istio"
-  module_version = "0.1.1"
+  module_name    = fileexists("${path.module}/.module_name") ? trimspace(file("${path.module}/.module_name")) : "tfmod-istio"
+  module_version = fileexists("${path.module}/.git_tag") ? trimspace(file("${path.module}/.git_tag")) : "latest"
 }