install epel-release on RHEL7

roles/kubernetes/master/tasks/main.yml

@@ -91,9 +91,3 @@
     name: kubelet
     state: restarted
   changed_when: false
-
-- name: restart kube-apiserver
-  service:
-    name: kube-apiserver
-    state: restarted
-  when: secret_changed | default(false)

roles/kubernetes/master/tasks/start.yml

@@ -11,11 +11,12 @@
     name: kube-apiserver
     state: restarted
     enabled: yes
-  when: restart_apimaster is defined and restart_apimaster == True
+  when: ( restart_apimaster is defined and restart_apimaster == True) or
+        secret_changed | default(false)
 
 - name: Enable apiserver
   service:
     name: kube-apiserver
     enabled: yes
     state: started
-  when: restart_apimaster is not defined or restart_apimaster == False
\ No newline at end of file
+  when: restart_apimaster is not defined or restart_apimaster == False

roles/kubernetes/preinstall/tasks/main.yml

@@ -59,23 +59,26 @@
   when: ansible_pkg_mgr == 'yum'
 
 - name: Install python-apt for Debian distribs
-  shell: apt-get install -y python-apt
+  command: apt-get install -y python-apt
   when: ansible_os_family == "Debian"
   changed_when: False
 
 - name: Install python-dnf for latest RedHat versions
-  shell: dnf install -y python-dnf yum
+  command: dnf install -y python-dnf yum
   when: ansible_distribution == "Fedora" and
         ansible_distribution_major_version > 21
   changed_when: False
 
-- name: Install epel-release for RedHat and CentOS distribs
+- name: Install epel-release on RHEL
+  command: rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
+  when: ansible_distribution == "RedHat"
+
+- name: Install epel-release on CentOS
   action:
     module: "{{ ansible_pkg_mgr }}"
     name: "epel-release"
     state: latest
-  when: ansible_distribution == "RedHat" or
-        ansible_distribution == "CentOS"
+  when: ansible_distribution == "CentOS"
 
 - name: Install packages requirements
   action: