Add satellite email setup for Hedwig.

states/email-satellite/aliases/aliases

@@ -0,0 +1,15 @@
+# /etc/aliases
+mailer-daemon: postmaster
+postmaster: root
+nobody: root
+hostmaster: root
+usenet: root
+news: root
+webmaster: root
+www: root
+ftp: root
+abuse: root
+noc: root
+security: root
+
+root: jim@lunch.org.uk

states/email-satellite/exim4/update-exim4.conf.conf

@@ -0,0 +1,31 @@
+# /etc/exim4/update-exim4.conf.conf
+#
+# Edit this file and /etc/mailname by hand and execute update-exim4.conf
+# yourself or use 'dpkg-reconfigure exim4-config'
+#
+# Please note that this is _not_ a dpkg-conffile and that automatic changes
+# to this file might happen. The code handling this will honor your local
+# changes, so this is usually fine, but will break local schemes that mess
+# around with multiple versions of the file.
+#
+# update-exim4.conf uses this file to determine variable values to replace
+# the DEBCONFsomethingDEBCONF strings in the configuration template files.
+#
+# Most settings found in here do have corresponding questions in the
+# Debconf configuration, but not all of them.
+#
+# This is a Debian specific file
+
+dc_eximconfig_configtype='satellite'
+dc_other_hostnames=''
+dc_local_interfaces='127.0.0.1 ; ::1'
+dc_readhost=''
+dc_relay_domains=''
+dc_minimaldns='false'
+dc_relay_nets=''
+dc_smarthost='scabbers.lunch.org.uk'
+CFILEMODE='644'
+dc_use_split_config='false'
+dc_hide_mailname=''
+dc_mailname_in_oh='true'
+dc_localdelivery='mail_spool'

states/email-satellite/init.sls

@@ -0,0 +1,33 @@
+exim4:
+  pkg.installed:
+    - name: exim4-daemon-light
+
+exim4_conf:
+  file.recurse:
+    - name: /etc/exim4
+    - dir_mode: '0755'
+    - file_mode: '0644'
+    - source: salt://email-satellite/exim4
+
+exim4_update_conf:
+  cmd.run:
+    - name: update-exim4.conf
+    - onchanges:
+      - file: exim4_conf
+
+enable_exim4_service:
+  service.enabled:
+    - name: exim4
+
+exim4_service:
+  service.running:
+    - name: exim4
+    - reload: true
+    - watch:
+      - cmd: exim4_update_conf
+
+email_aliases:
+  file.recurse:
+    - name: /etc
+    - file_mode: '0644'
+    - source: salt://email/aliases

states/email/exim4/update-exim4.conf.conf

@@ -22,7 +22,7 @@ dc_local_interfaces=''
 dc_readhost=''
 dc_relay_domains=''
 dc_minimaldns='false'
-dc_relay_nets=''
+dc_relay_nets='hedwig.lunch.org.uk'
 dc_smarthost='"${if match{${lc:$header_from:}}{.*acm.org}{smtpauth.mailroute.net::587}{smtpout.mythic-beasts.com}}"'
 CFILEMODE='644'
 dc_use_split_config='true'

states/top.sls

@@ -10,6 +10,7 @@ base:
     - backup
     - backup/hedwig
     - certificates/client
+    - email-satellite
     - fail2ban
     - firewalls/hedwig
     - lunch_website