Migrate config installation from copy -> template

This migrates installation of config files from using 'copy' to 'template',
allowing downstream users of the role the ability to carry a template in their
playbooks and have it easily rendered out simply by overriding the
zuul_file_*_dest variables.

Note, this omits layout.yaml for the time being

Depends-on: I32cc11901bddd03125e1c4ce6f246d811f414cba

Change-Id: I9f5890a54ded2b0169aa76501828e7856e0d6583

tasks/config.yaml

@@ -23,9 +23,9 @@
     - /etc/zuul
     - /var/log/zuul
 
-- name: Copy gearman logging file.
+- name: Install gearman logging file.
   become: yes
-  copy:
+  template:
     dest: "{{ zuul_file_gearman_logging_conf_dest }}"
     group: "{{ zuul_file_gearman_logging_conf_group }}"
     mode: "{{ zuul_file_gearman_logging_conf_mode }}"
@@ -34,9 +34,9 @@
   register: zuul_file_gearman_logging_conf
   notify: Reload zuul-server
 
-- name: Copy launcher logging file.
+- name: Install launcher logging file.
   become: yes
-  copy:
+  template:
     dest: "{{ zuul_file_launcher_logging_conf_dest }}"
     group: "{{ zuul_file_launcher_logging_conf_group }}"
     mode: "{{ zuul_file_launcher_logging_conf_mode }}"
@@ -45,9 +45,9 @@
   register: zuul_file_launcher_logging_conf
   notify: Reload zuul-launcher
 
-- name: Copy merger logging file.
+- name: Install merger logging file.
   become: yes
-  copy:
+  template:
     dest: "{{ zuul_file_merger_logging_conf_dest }}"
     group: "{{ zuul_file_merger_logging_conf_group }}"
     mode: "{{ zuul_file_merger_logging_conf_mode }}"
@@ -56,9 +56,9 @@
   register: zuul_file_merger_logging_conf
   notify: Reload zuul-merger
 
-- name: Copy server logging file.
+- name: Install server logging file.
   become: yes
-  copy:
+  template:
     dest: "{{ zuul_file_server_logging_conf_dest }}"
     group: "{{ zuul_file_server_logging_conf_group }}"
     mode: "{{ zuul_file_server_logging_conf_mode }}"
@@ -67,7 +67,7 @@
   register: zuul_file_server_logging_conf
   notify: Reload zuul-server
 
-- name: Copy layout configuration.
+- name: Install layout configuration.
   become: yes
   copy:
     dest: "{{ zuul_file_layout_dest }}"
@@ -78,9 +78,9 @@
   register: zuul_file_layout
   notify: Reload zuul-server
 
-- name: Copy zuul configuration.
+- name: Install zuul configuration.
   become: yes
-  copy:
+  template:
     dest: "{{ zuul_file_zuul_conf_dest }}"
     group: "{{ zuul_file_zuul_conf_group }}"
     mode: "{{ zuul_file_zuul_conf_mode }}"