osbuild: support building azurestack disks

src/cmd-osbuild

@@ -12,6 +12,7 @@ declare -A SUPPORTED_PLATFORMS=(
     ['applehv']='raw'
     ['aws']='vmdk'
     ['azure']='vhd'
+    ['azurestack']='vhd'
     ['digitalocean']='qcow2'
     ['exoscale']='qcow2'
     ['gcp']='tar.gz'

src/osbuild-manifests/coreos.osbuild.x86_64.mpp.yaml

@@ -782,6 +782,8 @@ pipelines:
       path: platform.aws.ipp.yaml
   - mpp-import-pipelines:
       path: platform.azure.ipp.yaml
+  - mpp-import-pipelines:
+      path: platform.azurestack.ipp.yaml
   - mpp-import-pipelines:
       path: platform.digitalocean.ipp.yaml
   - mpp-import-pipelines:

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

@@ -0,0 +1,71 @@
+# This file defines the artifact to be used for the azurestack platform.
+version: '2'
+pipelines:
+  - name: raw-azurestack-image
+    build:
+      mpp-format-string: '{buildroot}'
+    stages:
+      - type: org.osbuild.copy
+        inputs:
+          tree:
+            type: org.osbuild.tree
+            origin: org.osbuild.pipeline
+            references:
+              - name:raw-image
+        options:
+          paths:
+            - from: input://tree/disk.img
+              to: tree:///disk.img
+      # Increase the size to the cloud image size
+      - type: org.osbuild.truncate
+        options:
+          filename: disk.img
+          size:
+            mpp-format-string: "{cloud_image_size_mb * 1024 * 1024}"
+      - type: org.osbuild.coreos.platform
+        options:
+          platform: azurestack
+        devices:
+          disk:
+            type: org.osbuild.loopback
+            options:
+              filename: disk.img
+              partscan: true
+        mounts:
+           - name: root
+             type: org.osbuild.xfs
+             source: disk
+             partition:
+               mpp-format-int: '{image.layout[''root''].partnum}'
+             target: /
+           - name: ostree.deployment
+             type: org.osbuild.ostree.deployment
+             options:
+               source: mount
+               deployment:
+                 default: true
+           - name: boot
+             type: org.osbuild.ext4
+             source: disk
+             partition:
+               mpp-format-int: '{image.layout[''boot''].partnum}'
+             target: /boot
+  - name: azurestack
+    build:
+      mpp-format-string: '{host_as_buildroot}'
+    stages:
+      - type: org.osbuild.qemu
+        inputs:
+          image:
+            type: org.osbuild.files
+            origin: org.osbuild.pipeline
+            references:
+              name:raw-azurestack-image:
+                file: disk.img
+        options:
+          filename:
+            mpp-format-string: '{artifact_name_prefix}-azurestack.{arch}.vhd'
+          format:
+            type: vpc
+            force_size: true
+            subformat: fixed