deploy_postfix_non_mailhost.yml

@@ -0,0 +1,8 @@
+---
+# Deploy a correclty configured postfix on non mailhost servers
+- hosts: all,!unifi
+  vars:
+    local_network: 10.128.0.0/16
+    relay_host: proxy.adm.auro.re
+  roles:
+    - postfix_non_mailhost

roles/postfix_non_mailhost/handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: restart postfix
+  service:
+    name: postfix
+    state: restarted
+
+- name: reload postfix
+  service:
+    name: postfix
+    state: reloaded

roles/postfix_non_mailhost/tasks/main.yml

@@ -0,0 +1,17 @@
+---
+- name: Install postfix
+  apt:
+    name: postfix
+    update_cache: true
+  register: result
+  retries: 3
+  until: result is succeeded
+
+- name: Configure postfix
+  template:
+    src: main.cf.j2
+    dest: /etc/postfix/main.cf
+    mode: 0644
+    owner: root
+    group: root
+  notify: restart postfix

roles/postfix_non_mailhost/templates/main.cf.j2

@@ -0,0 +1,31 @@
+# {{ ansible_managed }}
+# See /usr/share/postfix/main.cf.dist for a commented, more complete version
+# Template based on /usr/share/postfix/main.cf.debian
+
+smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
+biff = no
+
+# appending .domain is the MUA's job.
+append_dot_mydomain = no
+
+# Uncomment the next line to generate "delayed mail" warnings
+#delay_warning_time = 4h
+
+readme_directory = no
+
+# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
+# fresh installs.
+compatibility_level = 2
+
+# Send mail as user@{{ ansible_fqdn }}
+myhostname = {{ ansible_fqdn }}
+myorigin = $myhostname # default configuration
+
+# Specify the trusted networks
+mynetworks = 127.0.0.0/8 {{ local_network }}
+
+# This host does not relay mail from untrusted networks
+relay_domains =
+
+# This is needed if no direct Internet access is available
+relayhost = {{ relay_host }}