Remove the task that installed the master ssh key reading a local file.

jenkins/slave/defaults/main.yml

@@ -4,7 +4,7 @@ jenkins_slave: False
 jenkins_dest: "/var/lib/jenkins"
 jenkins_username: jenkins
 jenkins_group: jenkins
-jenkins_shell: /bin/bash
+jenkins_slaves_shell: /bin/bash
 jenkins_tmp_retain_days: 5
 # TODO: fetch the public key from the master
 #jenkins_master_pubkey:

jenkins/slave/tasks/main.yml

@@ -1,17 +1,10 @@
 ---
 - block: 
     - name: add the user that will run the jenkins jobs
-      user: name={{ jenkins_username }} home={{ jenkins_dest }} shell={{ jenkins_shell }} generate_ssh_key=yes
-
-    - name: ensure the jenkins master has ssh access on each slave, as jenkins user
-      authorized_key: user={{ jenkins_username }} key="{{ item }}" state=present
-      with_items:
-        - '{{ jenkins_master_pubkey }}'
+      user: name={{ jenkins_username }} home={{ jenkins_dest }} shell={{ jenkins_slaves_shell }} generate_ssh_key=yes
 
     - name: Daily cron job to cleanup the /tmp junk
-      template: src={{ item }}.j2 dest=/etc/cron.daily/{{ item }} owner=root group=root mode=0755
-      with_items:
-        - tmp-cleaner
+      template: src=tmp-cleaner.j2 dest=/etc/cron.daily/{{ item }} owner=root group=root mode=0755
 
   when: jenkins_slave
   tags: [ 'jenkins', 'jenkins_slave' ]