Manage /etc/aliases with the template module

Using the `lineinfile` module causes the deletion of aliases in the vars files not to be reflected in the actual `/etc/aliases` file, so we may end up with dangling entries. Using a template to manage the whole file makes sense since this file should be "owned" by the postfix installation/configuration, so we want it to be rebuilt as a whole from the vars configuration instead of just editing some lines. Closes #78 Signed-off-by: L. Alberto Giménez <[email protected]>
Oefenweb · May 17, 2020 · 15355de · 15355de
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diff --git a/tasks/main.yml b/tasks/main.yml
@@ -75,16 +75,12 @@
     - postfix-sasl-passwd
 
 - name: configure aliases
-  lineinfile:
+  template:
+    src: etc/aliases.j2
     dest: "{{ postfix_aliases_file }}"
-    regexp: '^{{ item.user | regex_escape }}.*'
-    line: '{{ item.user }}: {{ item.alias }}'
     owner: root
     group: root
     mode: 0644
-    create: true
-    state: present
-  with_items: "{{ postfix_aliases }}"
   notify:
     - new aliases
     - restart postfix

diff --git a/templates/etc/aliases.j2 b/templates/etc/aliases.j2
@@ -0,0 +1,7 @@
+{{ ansible_managed | comment }}
+# See man 5 aliases for format
+
+postmaster: root
+{% for alias in postfix_aliases %}
+{{ alias.user }}: {{ alias.alias }}
+{% endfor %}