roles/ipaclient/tasks/install.yml: ccache cleanup, new always clause

Add big block has been added that contains all steps where the ccache is
created an used. With the block it is possible to add an always clause to
remove the ccachae also in the error case. The cleanup of the ccache is
also done in the beginning to make sure that no ccache leftover will be
used.

roles/ipaclient/tasks/install.yml

@@ -21,6 +21,11 @@
     ipaadmin_principal: admin
   when: ipaadmin_principal is undefined and ipaclient_keytab is undefined
 
+- name: Install - Cleanup leftover ccache
+  file:
+    path: "/etc/ipa/.dns_ccache"
+    state: absent
+
 - block:
   - name: Install - Test if IPA client has working krb5.keytab
     ipatest:
@@ -38,6 +43,7 @@
       ipaclient_use_otp: "no"
     when: ipaclient_use_otp | bool and ipatest.krb5_keytab_ok
 
+
   # The following block is executed when using OTP to enroll IPA client
   # ie when ipaclient_use_otp is set.
   # It connects to ipaserver and add the host with --random option in order
@@ -103,7 +109,7 @@
     when: not ipatest.krb5_keytab_ok or ipaclient_force_join
 
   - block:
-  - name: Install - Cleanup ccache, end playbook processing
+    - name: Install - End playbook processing
       file:
         path: "/etc/ipa/.dns_ccache"
         state: absent
@@ -198,3 +204,10 @@
       #no_nisdomain: no
       #nisdomain:
       #on_master: no
+
+  always:
+  - name: Cleanup leftover ccache
+    file:
+      path: "/etc/ipa/.dns_ccache"
+      state: absent
+