osbuild/hyperv: run through zip

The artifact we create in the pipeline today is .vhdx.zip. Let's
build on the work upstream in [1] and use the new OSBuild zip stage
to encapsulate the artifact.

[1] osbuild/osbuild@ac8a2a4

src/cmd-osbuild

@@ -10,7 +10,7 @@ dn=$(dirname "$0")
 declare -A SUPPORTED_PLATFORMS=(
     ['applehv']='raw.gz'
     ['gcp']='tar.gz'
-    ['hyperv']='vhdx'
+    ['hyperv']='vhdx.zip'
     ['metal4k']='raw'
     ['metal']='raw'
     ['qemu']='qcow2'
@@ -360,7 +360,7 @@ main() {
 
         # Perform postprocessing
         case "$platform" in
-            applehv|gcp)
+            applehv|gcp|hyperv)
                 # Update the meta.json and builddir with the generated artifact.
                 # Skip Compression on these platforms as they are already compressed.
                 postprocess_artifact "${platform}" "${imgpath}" "${imgname}" 'True'

src/osbuild-manifests/platform.hyperv.ipp.yaml

@@ -51,7 +51,7 @@ pipelines:
              partition:
                mpp-format-int: '{image.layout[''boot''].partnum}'
              target: /boot
-  - name: hyperv
+  - name: raw-hyperv-image-vhdx
     build:
       mpp-format-string: '{qemu_stage_buildroot}'
     stages:
@@ -68,3 +68,18 @@ pipelines:
             mpp-format-string: '{artifact_name_prefix}-hyperv.{arch}.vhdx'
           format:
             type: vhdx
+  - name: hyperv
+    build:
+      mpp-format-string: '{qemu_stage_buildroot}'
+    stages:
+      - type: org.osbuild.zip
+        inputs:
+          tree:
+            type: org.osbuild.tree
+            origin: org.osbuild.pipeline
+            references:
+              - name:raw-hyperv-image-vhdx
+        options:
+          level: 9
+          filename:
+            mpp-format-string: '{artifact_name_prefix}-hyperv.{arch}.vhdx.zip'

src/vmdeps.txt

@@ -37,7 +37,7 @@ tar
 podman
 
 # For running osbuild
-osbuild osbuild-ostree osbuild-selinux osbuild-tools python3-pyrsistent
+osbuild osbuild-ostree osbuild-selinux osbuild-tools python3-pyrsistent zip
 
 # For resetting the terminal inside supermin shell
 /usr/bin/reset