13 files changed, 43 insertions, 17 deletions
diff --git a/playbooks/common/openshift-cluster/upgrades/v3_6/upgrade_control_plane.yml b/playbooks/common/openshift-cluster/upgrades/v3_6/upgrade_control_plane.yml
index eb5f07ae0..d88880140 100644
--- a/playbooks/common/openshift-cluster/upgrades/v3_6/upgrade_control_plane.yml
+++ b/playbooks/common/openshift-cluster/upgrades/v3_6/upgrade_control_plane.yml
@@ -14,7 +14,7 @@
 - import_playbook: ../init.yml
   vars:
     l_upgrade_no_switch_firewall_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
-    l_upgrade_non_node_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
 
 - name: Configure the upgrade target for the common upgrade tasks
   hosts: oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config
diff --git a/playbooks/common/openshift-cluster/upgrades/v3_7/upgrade_control_plane.yml b/playbooks/common/openshift-cluster/upgrades/v3_7/upgrade_control_plane.yml
index 8d42e4c91..ce069e2d0 100644
--- a/playbooks/common/openshift-cluster/upgrades/v3_7/upgrade_control_plane.yml
+++ b/playbooks/common/openshift-cluster/upgrades/v3_7/upgrade_control_plane.yml
@@ -14,7 +14,7 @@
 - import_playbook: ../init.yml
   vars:
     l_upgrade_no_switch_firewall_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
-    l_upgrade_non_node_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
 
 - name: Configure the upgrade target for the common upgrade tasks
   hosts: oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config
diff --git a/playbooks/common/openshift-cluster/upgrades/v3_8/upgrade_control_plane.yml b/playbooks/common/openshift-cluster/upgrades/v3_8/upgrade_control_plane.yml
index 51da45311..3f26a6297 100644
--- a/playbooks/common/openshift-cluster/upgrades/v3_8/upgrade_control_plane.yml
+++ b/playbooks/common/openshift-cluster/upgrades/v3_8/upgrade_control_plane.yml
@@ -14,7 +14,7 @@
 - import_playbook: ../init.yml
   vars:
     l_upgrade_no_switch_firewall_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
-    l_upgrade_non_node_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
   when: not skip_version_info | default(false)
 
 - name: Configure the upgrade target for the common upgrade tasks
diff --git a/playbooks/common/openshift-cluster/upgrades/v3_9/upgrade_control_plane.yml b/playbooks/common/openshift-cluster/upgrades/v3_9/upgrade_control_plane.yml
index 384eeed4c..0f48725f6 100644
--- a/playbooks/common/openshift-cluster/upgrades/v3_9/upgrade_control_plane.yml
+++ b/playbooks/common/openshift-cluster/upgrades/v3_9/upgrade_control_plane.yml
@@ -14,7 +14,7 @@
 - import_playbook: ../init.yml
   vars:
     l_upgrade_no_switch_firewall_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
-    l_upgrade_non_node_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
 
 ## Check to see if they're running 3.7 and if so upgrade them to 3.8 on control plan
 ## If they've specified pkg_version or image_tag preserve that for later use
diff --git a/playbooks/container-runtime/private/config.yml b/playbooks/container-runtime/private/config.yml
index 7a49adcf0..817a8bf30 100644
--- a/playbooks/container-runtime/private/config.yml
+++ b/playbooks/container-runtime/private/config.yml
@@ -1,7 +1,11 @@
 ---
+# l_scale_up_hosts may be passed in via prerequisites.yml during scaleup plays.
+
 - import_playbook: build_container_groups.yml
 
-- hosts: oo_nodes_to_config:oo_hosts_containerized_managed_true
+- hosts: "{{ l_scale_up_hosts | default(l_default_container_runtime_hosts) }}"
+  vars:
+    l_default_container_runtime_hosts: "oo_nodes_to_config:oo_hosts_containerized_managed_true"
   roles:
     - role: container_runtime
   tasks:
diff --git a/playbooks/container-runtime/private/setup_storage.yml b/playbooks/container-runtime/private/setup_storage.yml
index a6d396270..65630be62 100644
--- a/playbooks/container-runtime/private/setup_storage.yml
+++ b/playbooks/container-runtime/private/setup_storage.yml
@@ -1,8 +1,11 @@
 ---
+# l_scale_up_hosts may be passed in via prerequisites.yml during scaleup plays.
+
 - import_playbook: build_container_groups.yml
 
-- hosts: oo_nodes_to_config:oo_hosts_containerized_managed_true
+- hosts: "{{ l_scale_up_hosts | default(l_default_container_storage_hosts) }}"
   vars:
+    l_default_container_storage_hosts: "oo_nodes_to_config:oo_hosts_containerized_managed_true"
     l_chg_temp: "{{ hostvars[groups['oo_first_master'][0]]['openshift_containerized_host_groups'] | default([]) }}"
     l_containerized_host_groups: "{{ (['oo_nodes_to_config'] | union(l_chg_temp)) | join(':') }}"
   # role: container_runtime is necessary  here to bring role default variables
diff --git a/playbooks/init/base_packages.yml b/playbooks/init/base_packages.yml
index 15b3dd492..e1052fb6c 100644
--- a/playbooks/init/base_packages.yml
+++ b/playbooks/init/base_packages.yml
@@ -1,6 +1,8 @@
 ---
+# l_scale_up_hosts may be passed in via prerequisites.yml during scaleup plays.
+
 - name: Install packages necessary for installer
-  hosts: oo_all_hosts
+  hosts: "{{ l_scale_up_hosts | default('oo_all_hosts') }}"
   any_errors_fatal: true
   tasks:
   - when:
diff --git a/playbooks/init/facts.yml b/playbooks/init/facts.yml
index 8e4206948..df17c4043 100644
--- a/playbooks/init/facts.yml
+++ b/playbooks/init/facts.yml
@@ -5,9 +5,9 @@
   tasks:
 
 - name: Initialize host facts
-  # l_upgrade_non_node_hosts is passed in via play during control-plane-only
-  # upgrades; otherwise oo_all_hosts is used.
-  hosts: "{{ l_upgrade_non_node_hosts | default('oo_all_hosts') }}"
+  # l_init_fact_hosts is passed in via play during control-plane-only
+  # upgrades and scale-up plays; otherwise oo_all_hosts is used.
+  hosts: "{{ l_init_fact_hosts | default('oo_all_hosts') }}"
   tasks:
   - name: load openshift_facts module
     import_role:
diff --git a/playbooks/init/repos.yml b/playbooks/init/repos.yml
index 667f38ddd..655a7e83a 100644
--- a/playbooks/init/repos.yml
+++ b/playbooks/init/repos.yml
@@ -1,6 +1,8 @@
 ---
+# l_scale_up_hosts may be passed in via prerequisites.yml during scaleup plays.
+
 - name: Setup yum repositories for all hosts
-  hosts: oo_all_hosts
+  hosts: "{{ l_scale_up_hosts | default('oo_all_hosts') }}"
   gather_facts: no
   tasks:
   - name: subscribe instances to Red Hat Subscription Manager
diff --git a/playbooks/init/sanity_checks.yml b/playbooks/init/sanity_checks.yml
index 52bcf42c0..fbbb3f8fb 100644
--- a/playbooks/init/sanity_checks.yml
+++ b/playbooks/init/sanity_checks.yml
@@ -1,4 +1,5 @@
 ---
+# l_sanity_check_hosts may be passed in during scale-up plays
 - name: Verify Requirements
   hosts: oo_first_master
   roles:
@@ -11,5 +12,5 @@
   # Thus, sanity_checks cannot gather new information about any hosts.
   - name: Run variable sanity checks
     sanity_checks:
-      check_hosts: "{{ groups['oo_all_hosts'] }}"
+      check_hosts: "{{ l_sanity_check_hosts | default(groups['oo_all_hosts']) }}"
     run_once: True
diff --git a/playbooks/openshift-etcd/upgrade.yml b/playbooks/openshift-etcd/upgrade.yml
index 71606e7e4..b1ce6b220 100644
--- a/playbooks/openshift-etcd/upgrade.yml
+++ b/playbooks/openshift-etcd/upgrade.yml
@@ -2,6 +2,6 @@
 - import_playbook: ../init/main.yml
   vars:
     skip_verison: True
-    l_upgrade_non_node_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config"
 
 - import_playbook: private/upgrade_main.yml
diff --git a/playbooks/openshift-node/scaleup.yml b/playbooks/openshift-node/scaleup.yml
index cf13692ae..cc03b72a2 100644
--- a/playbooks/openshift-node/scaleup.yml
+++ b/playbooks/openshift-node/scaleup.yml
@@ -13,8 +13,18 @@
     when:
     - g_new_node_hosts | default([]) | length == 0
 
-# Need a better way to do the above check for node without
-# running evaluate_groups and init/main.yml
-- import_playbook: ../init/main.yml
+# if g_new_node_hosts is not empty, oo_nodes_to_config will be set to
+# g_new_node_hosts via evaluate_groups.yml
+
+- import_playbook: ../prerequisites.yml
+  vars:
+    l_scale_up_hosts: "oo_nodes_to_config"
+    l_init_fact_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config:oo_nodes_to_config"
+    l_sanity_check_hosts: "{{ groups['oo_nodes_to_config'] | union(groups['oo_masters_to_config']) }}"
+
+- import_playbook: ../init/version.yml
+  vars:
+    l_openshift_version_set_hosts: "oo_nodes_to_config:!oo_first_master"
+    l_openshift_version_check_hosts: "oo_nodes_to_config"
 
 - import_playbook: private/config.yml
diff --git a/playbooks/prerequisites.yml b/playbooks/prerequisites.yml
index 7802f83d9..938bd3bc6 100644
--- a/playbooks/prerequisites.yml
+++ b/playbooks/prerequisites.yml
@@ -1,4 +1,6 @@
 ---
+# l_scale_up_hosts may be passed in via various scaleup plays.
+
 - import_playbook: init/main.yml
   vars:
     skip_verison: True
@@ -12,7 +14,9 @@
 
 # This is required for container runtime for crio, only needs to run once.
 - name: Configure os_firewall
-  hosts: oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config:oo_nfs_to_config:oo_nodes_to_config
+  hosts: "{{ l_scale_up_hosts | default(l_default_firewall_hosts) }}"
+  vars:
+    l_default_firewall_hosts: "oo_masters_to_config:oo_etcd_to_config:oo_lb_to_config:oo_nfs_to_config:oo_nodes_to_config"
   roles:
   - role: os_firewall