change line in file instead of copy the whole config

files/automatic.conf

@@ -1,81 +0,0 @@
-[commands]
-#  What kind of upgrade to perform:
-# default                            = all available upgrades
-# security                           = only the security upgrades
-upgrade_type = default
-random_sleep = 300
-
-# To just receive updates use dnf-automatic-notifyonly.timer
-
-# Whether updates should be downloaded when they are available, by
-# dnf-automatic.timer. notifyonly.timer, download.timer and
-# install.timer override this setting.
-download_updates = yes
-
-# Whether updates should be applied when they are available, by
-# dnf-automatic.timer. notifyonly.timer, download.timer and
-# install.timer override this setting.
-apply_updates = yes
-
-
-[emitters]
-# Name to use for this system in messages that are emitted.  Default is the
-# hostname.
-# system_name = my-host
-
-# How to send messages.  Valid options are stdio, email and motd.  If
-# emit_via includes stdio, messages will be sent to stdout; this is useful
-# to have cron send the messages.  If emit_via includes email, this
-# program will send email itself according to the configured options.
-# If emit_via includes motd, /etc/motd file will have the messages. if
-# emit_via includes command_email, then messages will be send via a shell
-# command compatible with sendmail.
-# Default is email,stdio.
-# If emit_via is None or left blank, no messages will be sent.
-emit_via = stdio
-
-
-[email]
-# The address to send email messages from.
-email_from = root@example.com
-
-# List of addresses to send messages to.
-email_to = root
-
-# Name of the host to connect to to send email messages.
-email_host = localhost
-
-
-[command]
-# The shell command to execute. This is a Python format string, as used in
-# str.format(). The format function will pass a shell-quoted argument called
-# `body`.
-# command_format = "cat"
-
-# The contents of stdin to pass to the command. It is a format string with the
-# same arguments as `command_format`.
-# stdin_format = "{body}"
-
-
-[command_email]
-# The shell command to use to send email. This is a Python format string,
-# as used in str.format(). The format function will pass shell-quoted arguments
-# called body, subject, email_from, email_to.
-# command_format = "mail -s {subject} -r {email_from} {email_to}"
-
-# The contents of stdin to pass to the command. It is a format string with the
-# same arguments as `command_format`.
-# stdin_format = "{body}"
-
-# The address to send email messages from.
-email_from = root@example.com
-
-# List of addresses to send messages to.
-email_to = root
-
-
-[base]
-# This section overrides dnf.conf
-
-# Use this to filter DNF core messages
-debuglevel = 1

tasks/main.yml

@@ -2,7 +2,10 @@
   dnf: name=dnf-automatic state=present
 
 - name: configure dnf-automatic
-  copy: src=automatic.conf dest=/etc/dnf/
+  lineinfile:
+    dest=/etc/dnf/automatic.conf
+    regexp="^apply_updates"
+    line="apply_updates = yes"
 
 - name: enable dnf-automatic timer
   service: name=dnf-automatic.timer state=started enabled=yes