diff --git a/xml/resources-3.10.rng b/xml/resources-3.10.rng
index a47e49013a..e540617b33 100644
--- a/xml/resources-3.10.rng
+++ b/xml/resources-3.10.rng
@@ -1,449 +1,451 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <grammar xmlns="http://relaxng.org/ns/structure/1.0"
          datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <start>
     <ref name="element-resources"/>
   </start>
 
   <!--
    Include rule definitions so that we can override element-nvset.rule based on
    context
    -->
   <include href="rule-3.10.rng">
     <start combine="choice">
       <notAllowed/>
     </start>
   </include>
 
   <define name="element-resources">
     <element name="resources">
       <zeroOrMore>
         <choice>
           <ref name="element-primitive"/>
           <ref name="element-template"/>
           <ref name="element-group"/>
           <ref name="element-clone"/>
           <ref name="element-master"/>
           <ref name="element-bundle"/>
         </choice>
       </zeroOrMore>
     </element>
   </define>
 
   <!--
    see upgrade-2.10.xsl
    - cibtr:table for="resource-meta-attributes"
    -->
   <define name="primitive-template.meta_attributes.nvpair.name-unsupported">
     <attribute name="name">
       <data type="string">
         <except>
           <choice>
             <value>isolation</value>
             <value>isolation-host</value>
             <value>isolation-instance</value>
             <value>isolation-wrapper</value>
           </choice>
         </except>
       </data>
     </attribute>
   </define>
 
   <define name="element-resource-extra.primitive-template">
     <zeroOrMore>
       <choice>
         <ref name="element-instance_attributes"/>
         <element name="meta_attributes">
           <grammar>
             <include href="nvset-3.10.rng">
               <define name="element-nvset.name">
                 <parentRef name="primitive-template.meta_attributes.nvpair.name-unsupported"/>
               </define>
             </include>
           </grammar>
         </element>
         <element name="utilization">
           <externalRef href="nvset-3.10.rng"/>
         </element>
       </choice>
     </zeroOrMore>
   </define>
 
   <define name="element-primitive">
     <element name="primitive">
       <interleave>
         <attribute name="id"><data type="ID"/></attribute>
         <choice>
           <group>
             <ref name="element-resource-class"/>
             <attribute name="type"><text/></attribute>
           </group>
           <attribute name="template"><data type="IDREF"/></attribute>
         </choice>
         <optional>
           <attribute name="description"><text/></attribute>
         </optional>
         <ref name="element-resource-extra.primitive-template"/>
         <ref name="element-operations"/>
       </interleave>
     </element>
   </define>
 
   <define name="element-template">
     <element name="template">
       <interleave>
         <attribute name="id"><data type="ID"/></attribute>
         <ref name="element-resource-class"/>
         <attribute name="type"><text/></attribute>
         <optional>
           <attribute name="description"><text/></attribute>
         </optional>
         <ref name="element-resource-extra.primitive-template"/>
         <ref name="element-operations"/>
       </interleave>
     </element>
   </define>
 
   <define name="element-bundle">
     <element name="bundle">
       <interleave>
         <attribute name="id"><data type="ID"/></attribute>
         <optional>
           <attribute name="description"><text/></attribute>
         </optional>
         <ref name="element-resource-extra"/>
         <choice>
           <element name="docker">
             <attribute name="image"><text/></attribute>
             <optional>
               <attribute name="replicas"><data type="integer"/></attribute>
             </optional>
             <optional>
               <attribute name="replicas-per-host"><data type="integer"/></attribute>
             </optional>
             <optional>
               <choice>
                 <attribute name="masters"><data type="integer"/></attribute>
                 <attribute name="promoted-max"><data type="integer"/></attribute>
               </choice>
             </optional>
             <optional>
               <attribute name="run-command"> <text/></attribute>
             </optional>
             <optional>
               <attribute name="network"><text/></attribute>
             </optional>
             <optional>
               <attribute name="options"><text/></attribute>
             </optional>
           </element>
+
+          <!-- @COMPAT rkt containers in bundles are deprecated since 2.1.8 -->
           <element name="rkt">
             <attribute name="image"><text/></attribute>
             <optional>
               <attribute name="replicas"><data type="integer"/></attribute>
             </optional>
             <optional>
               <attribute name="replicas-per-host"><data type="integer"/></attribute>
             </optional>
             <optional>
               <choice>
                 <attribute name="masters"><data type="integer"/></attribute>
                 <attribute name="promoted-max"><data type="integer"/></attribute>
               </choice>
             </optional>
             <optional>
               <attribute name="run-command"> <text/></attribute>
             </optional>
             <optional>
               <attribute name="network"><text/></attribute>
             </optional>
             <optional>
               <attribute name="options"><text/></attribute>
             </optional>
           </element>
           <element name="podman">
             <attribute name="image"><text/></attribute>
             <optional>
               <attribute name="replicas"><data type="integer"/></attribute>
             </optional>
             <optional>
               <attribute name="replicas-per-host"><data type="integer"/></attribute>
             </optional>
             <optional>
               <choice>
                 <attribute name="masters"><data type="integer"/></attribute>
                 <attribute name="promoted-max"><data type="integer"/></attribute>
               </choice>
             </optional>
             <optional>
               <attribute name="run-command"> <text/></attribute>
             </optional>
             <optional>
               <attribute name="network"><text/></attribute>
             </optional>
             <optional>
               <attribute name="options"><text/></attribute>
             </optional>
           </element>
         </choice>
         <optional>
           <element name="network">
             <optional>
               <attribute name="ip-range-start"><text/></attribute>
             </optional>
             <optional>
               <attribute name="control-port"><data type="integer"/></attribute>
             </optional>
             <optional>
               <attribute name="host-interface"><text/></attribute>
             </optional>
             <optional>
               <attribute name="host-netmask"><data type="integer"/></attribute>
             </optional>
             <optional>
               <attribute name="add-host"><data type="boolean"/></attribute>
             </optional>
             <zeroOrMore>
               <element name="port-mapping">
                 <attribute name="id"><data type="ID"/></attribute>
                 <choice>
                   <group>
                     <attribute name="port"><data type="integer"/></attribute>
                     <optional>
                       <attribute name="internal-port"><data type="integer"/></attribute>
                     </optional>
                   </group>
                   <attribute name="range">
                     <data type="string">
                       <param name="pattern">([0-9\-]+)</param>
                     </data>
                   </attribute>
                 </choice>
               </element>
             </zeroOrMore>
           </element>
         </optional>
         <optional>
           <element name="storage">
             <zeroOrMore>
               <element name="storage-mapping">
                 <attribute name="id"><data type="ID"/></attribute>
                 <choice>
                   <attribute name="source-dir"><text/></attribute>
                   <attribute name="source-dir-root"><text/></attribute>
                 </choice>
                 <attribute name="target-dir"><text/></attribute>
                 <optional>
                   <attribute name="options"><text/></attribute>
                 </optional>
               </element>
             </zeroOrMore>
           </element>
         </optional>
         <optional>
           <ref name="element-primitive"/>
         </optional>
       </interleave>
     </element>
   </define>
 
   <define name="element-group">
     <element name="group">
       <attribute name="id"><data type="ID"/></attribute>
       <optional>
         <attribute name="description"><text/></attribute>
       </optional>
       <interleave>
         <ref name="element-resource-extra"/>
         <oneOrMore>
           <ref name="element-primitive"/>
         </oneOrMore>
       </interleave>
     </element>
   </define>
 
   <define name="element-clone">
     <element name="clone">
       <attribute name="id"><data type="ID"/></attribute>
       <optional>
         <attribute name="description"><text/></attribute>
       </optional>
       <interleave>
         <ref name="element-resource-extra"/>
         <choice>
           <ref name="element-primitive"/>
           <ref name="element-group"/>
         </choice>
       </interleave>
     </element>
   </define>
 
   <define name="element-master">
     <element name="master">
       <attribute name="id"><data type="ID"/></attribute>
       <optional>
         <attribute name="description"><text/></attribute>
       </optional>
       <interleave>
         <ref name="element-resource-extra"/>
         <choice>
           <ref name="element-primitive"/>
           <ref name="element-group"/>
         </choice>
       </interleave>
     </element>
   </define>
 
   <define name="element-resource-extra">
     <zeroOrMore>
       <choice>
         <ref name="element-instance_attributes"/>
         <element name="meta_attributes">
           <externalRef href="nvset-3.10.rng"/>
         </element>
       </choice>
     </zeroOrMore>
   </define>
 
   <!--
    see upgrade-2.10.xsl
    - cibtr:table for="resources-operation"
    -->
   <define name="op.meta_attributes.nvpair.name-unsupported">
     <attribute name="name">
       <data type="string">
         <except>
           <choice>
             <value>requires</value>
           </choice>
         </except>
       </data>
     </attribute>
   </define>
 
   <define name="element-resource-extra.op">
     <zeroOrMore>
       <choice>
         <ref name="element-instance_attributes"/>
         <element name="meta_attributes">
           <grammar>
             <include href="nvset-3.10.rng">
               <define name="element-nvset.name">
                 <parentRef name="op.meta_attributes.nvpair.name-unsupported"/>
               </define>
 
               <!--
                @COMPAT: Support for node attribute expressions is deprecated
                here. We can just delete this define when we drop support.
               -->
               <define name="element-nvset.rule">
                 <parentRef name="element-rule-node-allowed"/>
               </define>
             </include>
           </grammar>
         </element>
       </choice>
     </zeroOrMore>
   </define>
 
   <define name="element-operations">
     <optional>
       <element name="operations">
         <optional>
           <attribute name="id"><data type="ID"/></attribute>
         </optional>
         <optional>
           <attribute name="id-ref"><data type="IDREF"/></attribute>
         </optional>
         <zeroOrMore>
           <element name="op">
             <attribute name="id"><data type="ID"/></attribute>
             <attribute name="name"><text/></attribute>
             <attribute name="interval"><text/></attribute>
             <optional>
               <attribute name="description"><text/></attribute>
             </optional>
             <optional>
               <choice>
                 <attribute name="start-delay"><text/></attribute>
                 <attribute name="interval-origin"><text/></attribute>
               </choice>
             </optional>
             <optional>
               <attribute name="timeout"><text/></attribute>
             </optional>
             <optional>
               <attribute name="enabled"><data type="boolean"/></attribute>
             </optional>
             <optional>
               <attribute name="record-pending"><data type="boolean"/></attribute>
             </optional>
             <optional>
               <attribute name="role">
                 <choice>
                   <value>Stopped</value>
                   <value>Started</value>
                   <value>Promoted</value>
                   <value>Unpromoted</value>
                   <value>Slave</value>
                   <value>Master</value>
                 </choice>
               </attribute>
             </optional>
             <optional>
               <attribute name="on-fail">
                 <choice>
                   <value>ignore</value>
                   <value>block</value>
                   <value>demote</value>
                   <value>stop</value>
                   <value>restart</value>
                   <value>standby</value>
                   <value>fence</value>
                   <value>restart-container</value>
                 </choice>
               </attribute>
             </optional>
             <ref name="element-resource-extra.op"/>
           </element>
         </zeroOrMore>
       </element>
     </optional>
   </define>
 
   <define name="element-resource-class">
     <choice>
       <group>
         <attribute name="class"><value>ocf</value></attribute>
         <attribute name="provider"><text/></attribute>
       </group>
       <attribute name="class">
         <choice>
           <value>lsb</value>
           <value>heartbeat</value>
           <value>stonith</value>
           <value>service</value>
           <value>systemd</value>
 
           <!-- @COMPAT upstart resources are deprecated since 2.1.0 -->
           <value>upstart</value>
 
           <!-- @COMPAT nagios resources are deprecated since 2.1.6 -->
           <value>nagios</value>
         </choice>
       </attribute>
     </choice>
   </define>
 
   <define name="element-instance_attributes">
      <element name="instance_attributes">
        <grammar>
          <include href="nvset-3.10.rng">
            <define name="element-nvset.rule">
              <parentRef name="element-rule-node-allowed"/>
            </define>
          </include>
        </grammar>
      </element>
   </define>
 </grammar>