add packer.io docs

website/content/docs/templates/hcl_templates/blocks/build/hcp_packer_registry.mdx

@@ -0,0 +1,39 @@
+---
+description: >
+  The hcp_packer_registry allows operators the ability to customize the metadata sent to HCP Packer Registry.
+  It configures the base details needed for creating or updating an image within HCP PAR.
+page_title: hcp_packer_registry - build - Blocks
+---
+
+# The `hcp_packer_registry` block
+
+The `hcp_packer_registry` block nested in a build block, allows operators the ability to customize the metadata sent to
+HCP Packer Registry. It configures the base details needed for creating or updating an image within HCP PAR.
+
+The presence of a `hcp_packer_registry` block will enable HCP PAR mode, and all the source builds within that build block
+will be pushed to the remote registry as far the appropriate HCP credentials are set (`HCP_CLIENT_ID` and `HCP_CLIENT_SECRET`).
+
+```hcl
+# file: builds.pkr.hcl
+source "file" "basic-example" {
+  content = "Lorem ipsum dolor sit amet"
+  target = "sample_artifact"
+}
+
+build {
+   name = "example-artifact"
+
+   hcp_packer_registry {
+    description = <<EOT
+Some nice description about the image which artifact is being published to HCP Packer Registry. =D
+    EOT
+
+    labels = {
+      "foo-version" = "3.4.0",
+      "foo" = "bar",
+    }
+  }
+
+  sources = ["sources.file.basic-example"]
+}
+```

website/data/docs-nav-data.json

@@ -75,6 +75,10 @@
                     "title": "Overview",
                     "path": "templates/hcl_templates/blocks/build"
                   },
+                  {
+                    "title": "<code>hcp_packer_registry</code>",
+                    "path": "templates/hcl_templates/blocks/build/hcp_packer_registry"
+                  },
                   {
                     "title": "<code>source</code>",
                     "path": "templates/hcl_templates/blocks/build/source"