diff --git a/deploy/crds/vms-crd.yaml b/deploy/crds/vms-crd.yaml
index e467eb2..2e0dfa3 100644
--- a/deploy/crds/vms-crd.yaml
+++ b/deploy/crds/vms-crd.yaml
@@ -21,24 +21,24 @@ spec:
                     The image to use for the pod. Must run a runner.
                   type: object
                   oneOf:
-                  - properties:
-                      source: {}
-                      path: {}
+                  - required:
+                    - source
+                  - required:
+                    - repository
+                    - path
+                  default: { source: "ghcr.io/mnlipp/org.jdrupes.vmoperator.runner.qemu-arch:latest" }
                   properties:
                     source:
                       description: >-
-                        The image to use for the pod. Must run a "runner".
+                        Specifies the image to use for the pod in a single line
+                        (repo:path[:version]). Must be a "runner" image.
                       type: string
-                      default: "ghcr.io/mnlipp/org.jdrupes.vmoperator.runner.qemu-arch:latest"
                     repository: 
                       type: string
-                      default: "ghcr.io"
                     path:
                       type: string
-                      default: "mnlipp/org.jdrupes.vmoperator.runner.qemu-arch"
                     version:
                       type: string
-                      default: "latest"
                     pullPolicy:
                       description: >-
                         Image pull policy. One of Always, Never, IfNotPresent.
@@ -50,9 +50,10 @@ spec:
                   type: object
                   description: Defines the VM.
                   oneOf:
-                  - properties:
-                      maximumCpus: {}
-                      cpuTopology: {}
+                  - required:
+                    - maximumCpus
+                  - required:
+                    - cpuTopology
                   properties:
                     state:
                       description: >-
@@ -142,9 +143,10 @@ spec:
                           Supported types are "tap" and "user" (for debugging).
                         type: object
                         oneOf:
-                        - properties:
-                            tap: {}
-                            user: {}
+                        - required:
+                          - tap
+                        - required:
+                          - user
                         properties:
                           tap:
                             type: object
diff --git a/org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/runnerSts.ftl.yaml b/org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/runnerSts.ftl.yaml
index 36fa4bc..e2390d9 100644
--- a/org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/runnerSts.ftl.yaml
+++ b/org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/runnerSts.ftl.yaml
@@ -29,10 +29,10 @@ spec:
       containers:
       - name: ${ cr.metadata.name.asString }
         <#assign image = cr.spec.image>
-        <#if image.repository?? && image.path??>
-        image: ${ image.repository.asString }/${ image.path.asString }<#if image.version??>:${ image.version.asString }</#if>
-        <#else>
+        <#if image.source??>
         image: ${ source.asString }
+        <#else>
+        image: ${ image.repository.asString }/${ image.path.asString }<#if image.version??>:${ image.version.asString }</#if>
         </#if>
         resources: {}
         <#if image.pullPolicy??>