add shared directory to container.config.runtime

components/schemas/containers/config/ContainerRuntime.yml

@@ -113,6 +113,29 @@ properties:
         type: array
         items:
           $ref: seccomp/SeccompRule.yml
+  host:
+    nullable: true
+    type: object
+    properties:
+      expose_proc:
+        nullable: true
+        type: boolean
+      shared_directories:
+        nullable: true
+        type: array
+        items:
+          type: object
+          required:
+            - identifier
+            - writable
+            - mount_point
+          properties:
+            identifier:
+              type: string
+            writable:
+              type: boolean
+            mount_point:
+              type: string
   rootfs:
     type: object
     properties:

components/schemas/stacks/spec/StackContainerConfigRuntime.yml

@@ -119,6 +119,27 @@ properties:
                           - SCMP_CMP_GE
                           - SCMP_CMP_GT
                           - SCMP_CMP_MASKED_EQ
+  host:
+    nullable: true
+    type: object
+    properties:
+      expose_proc:
+        nullable: true
+        type: boolean
+      shared_directories:
+        nullable: true
+        type: object
+        required:
+          - identifier
+          - writable
+          - mount_point
+        properties:
+          identifier:
+            type: string
+          writable:
+            type: boolean
+          mount_point:
+            type: string
   privileged:
     type: boolean
   capabilities: