iscsi: move package install to ceph-iscsi-role

Signed-off-by: Sébastien Han <seb@redhat.com>

roles/ceph-common/tasks/installs/install_redhat_packages.yml

@@ -93,14 +93,3 @@
   when:
     - nfs_group_name in group_names
     - nfs_obj_gw
-
-- name: install redhat ceph iscsi package
-  package:
-    name: "{{ item }}"
-    state: "{{ (upgrade_ceph_packages|bool) | ternary('latest','present') }}"
-  with_items:
-    - tcmu-runner
-    - ceph-iscsi-config
-    - targetcli
-  when:
-    - iscsi_gw_group_name in group_names

roles/ceph-iscsi-gw/tasks/prerequisites.yml

@@ -1,4 +1,15 @@
 ---
+- name: install redhat ceph iscsi package
+  package:
+    name: "{{ item }}"
+    state: "{{ (upgrade_ceph_packages|bool) | ternary('latest','present') }}"
+  with_items:
+    - tcmu-runner
+    - ceph-iscsi-config
+    - targetcli
+  when:
+    - ansible_os_family == 'RedHat'
+
 - name: check the status of the target.service override
   stat:
     path: /etc/systemd/system/target.service