[FEAT] Support storing original YAML string for app

[brooksmtownsend]

Currently, when storing an application, wadm parses the YAML string into a manifest and stores the serialized version of that manifest. After validating that the manifest is in a proper shape, it would be great to store the entire original manifest string to preserve comments and the original form order.

For example, here's our HTTP hello world manifest:

apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: rust-hello-world
  annotations:
    version: v0.0.1
    description: "HTTP hello world demo in Rust, using the WebAssembly Component Model and WebAssembly Interfaces Types (WIT)"
spec:
  components:
    - name: http-component
      type: component
      properties:
        image: file://./build/http_hello_world_s.wasm
      traits:
        # Govern the spread/scheduling of the component
        - type: spreadscaler
          properties:
            replicas: 1

    # Add a capability provider that enables HTTP access
    - name: httpserver
      type: capability
      properties:
        image: ghcr.io/wasmcloud/http-server:0.20.0
      traits:
        # Link the httpserver to the component, and configure the HTTP server
        # to listen on port 8080 for incoming requests
        - type: link
          properties:
            target: http-component
            namespace: wasi
            package: http
            interfaces: [incoming-handler]
            source_config:
              - name: default-http
                properties:
                  address: 127.0.0.1:8080

After deploying, if you were to retrieve the manifest it would look something like this:

apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: rust-hello-world
  annotations:
    version: v0.0.1
    description: "HTTP hello world demo in Rust, using the WebAssembly Component Model and WebAssembly Interfaces Types (WIT)"
spec:
  components:
    - name: http-component
      type: component
      properties:
        image: file:///path/to/build/http_hello_world_s.wasm
      traits:
        - type: spreadscaler
          properties:
            replicas: 1
            spread: []

    - name: httpserver
      type: capability
      properties:
        image: ghcr.io/wasmcloud/http-server:0.20.0
      traits:
        - type: link
          properties:
            target: http-component
            namespace: wasi
            package: http
            interfaces: [incoming-handler]
            source_config:
              - name: default-http
                properties:
                  address: 127.0.0.1:8080

Not only are comments removed, but some new fields are added (which we can compensate for by better serialization skips. I think primarily it would be great to keep comments after deployment to remember context.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this has been closed too eagerly, please feel free to tag a maintainer so we can keep working on the issue. Thank you for contributing to wasmCloud!

[brooksmtownsend]

Still relevant, so bumping the stale for now

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this has been closed too eagerly, please feel free to tag a maintainer so we can keep working on the issue. Thank you for contributing to wasmCloud!