diff --git a/environments/major-upgrade-composable-steps.yaml b/environments/major-upgrade-composable-steps.yaml
index 44580b4310..9e3cddbaa3 100644
--- a/environments/major-upgrade-composable-steps.yaml
+++ b/environments/major-upgrade-composable-steps.yaml
@@ -2,3 +2,14 @@ resource_registry:
   OS::TripleO::PostDeploySteps: ../puppet/major_upgrade_steps.yaml
 parameter_defaults:
   UpgradeLevelNovaCompute: auto
+  UpgradeInitCommonCommand: |
+    #!/bin/bash
+    # Newton to Ocata, we need to remove old hiera hook data and
+    # install ansible heat agents and ansible-pacemaker
+    set -eu
+    yum install -y python-heat-agent-*
+    yum install -y ansible-pacemaker
+    rm -f /usr/libexec/os-apply-config/templates/etc/puppet/hiera.yaml
+    rm -f /usr/libexec/os-refresh-config/configure.d/40-hiera-datafiles
+    rm -f /etc/puppet/hieradata/*.yaml
+
diff --git a/environments/major-upgrade-converge.yaml b/environments/major-upgrade-converge.yaml
index e3c0e531f3..f09fb20e4d 100644
--- a/environments/major-upgrade-converge.yaml
+++ b/environments/major-upgrade-converge.yaml
@@ -4,3 +4,4 @@ resource_registry:
   OS::TripleO::PostDeploySteps: ../puppet/post.yaml
 parameter_defaults:
   UpgradeLevelNovaCompute: ''
+  UpgradeInitCommonCommand: ''
diff --git a/puppet/blockstorage-role.yaml b/puppet/blockstorage-role.yaml
index e92de45f7c..a5218dbe01 100644
--- a/puppet/blockstorage-role.yaml
+++ b/puppet/blockstorage-role.yaml
@@ -115,6 +115,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 resources:
   BlockStorage:
@@ -360,6 +368,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
diff --git a/puppet/cephstorage-role.yaml b/puppet/cephstorage-role.yaml
index 892f91efa2..0867e17fb6 100644
--- a/puppet/cephstorage-role.yaml
+++ b/puppet/cephstorage-role.yaml
@@ -121,6 +121,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 resources:
   CephStorage:
@@ -366,6 +374,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
diff --git a/puppet/compute-role.yaml b/puppet/compute-role.yaml
index 62adcd3309..1a0294af41 100644
--- a/puppet/compute-role.yaml
+++ b/puppet/compute-role.yaml
@@ -133,6 +133,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 resources:
 
@@ -383,6 +391,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
diff --git a/puppet/controller-role.yaml b/puppet/controller-role.yaml
index d3268ee21d..825006ba4b 100644
--- a/puppet/controller-role.yaml
+++ b/puppet/controller-role.yaml
@@ -147,6 +147,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 parameter_groups:
 - label: deprecated
@@ -417,6 +425,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
diff --git a/puppet/objectstorage-role.yaml b/puppet/objectstorage-role.yaml
index 1633134d39..172484dcf0 100644
--- a/puppet/objectstorage-role.yaml
+++ b/puppet/objectstorage-role.yaml
@@ -115,6 +115,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 resources:
 
@@ -360,6 +368,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first
diff --git a/puppet/role.role.j2.yaml b/puppet/role.role.j2.yaml
index 2f070da2a7..2e1bd6f194 100644
--- a/puppet/role.role.j2.yaml
+++ b/puppet/role.role.j2.yaml
@@ -137,7 +137,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
-
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
 
 resources:
   {{role}}:
@@ -386,6 +393,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   # Note we may be able to make this conditional on UpgradeInitCommandNotEmpty
   # but https://bugs.launchpad.net/heat/+bug/1649900 needs fixing first