Exim removal and README update for Postfix

README.md

@@ -4,6 +4,19 @@ These Playbooks are designed to be used on Debian Stretch virtual servers.
 
 ## Discourse
 
+Ansible Playbooks to install Discourse via Docker on a Debian Stretch virtual
+server and to configure the virtual server to use Postfix for incoming and
+outgoing emails (there is also a not-quite-working and, for now, abandoned
+[exim branch](https://git.coop/cotech/ansible/tree/exim).
+
+The email setup is based on the [mail-reciever Docker
+container](https://github.com/discourse/mail-receiver) plus [this pull
+request](https://github.com/discourse/mail-receiver/pull/2) (which is now
+merged) and the [Postfix notes for using the host for outgoing
+email](https://meta.discourse.org/t/emails-with-local-smtp/23645/28), with an
+additional [Ruby
+script](https://git.coop/cotech/ansible/blob/master/roles/email/files/discourse-smtp-rcpt-acl).
+
 Login to the virtual server console, install `python`, enable root ssh access
 using keys by adding your keys to `/root/.ssh/authorized_keys`, edit
 `/etc/sshd/sshd_config` to set `PermitRootLogin prohibit-password`, run
@@ -53,11 +66,11 @@ the host for outgoing email, but then we switched it over to use Exim.
 Initial settings used for `community.coops.tech` when it was created:
 
 * title: Cooperative Technologists Community
-* site description: The intersection of co-operation and technology, the CoTech community forum.
-* contact email: community@coops.tech
-* contact url: https://www.coops.tech/
-* notification email: discourse@community.coops.tech
-* site contact username: system
+* site description: The intersection of co-operation and digtal technology, the CoTech community forum.
+* contact email: `community@coops.tech`
+* contact url: `https://www.coops.tech/`
+* notification email: `discourse@community.coops.tech`
+* site contact username: `system`
 * logo url: https://wiki.coops.tech/wiki/File:Cotech-blue.png
 * logo small url: https://wiki.coops.tech/wiki/File:Cotech-blue-text.png
 * company short name: CoTech
@@ -70,7 +83,7 @@ On the Email settings admin page:
 * reply by email enabled
 * reply by email address: `discourse+%{reply_key}@community.coops.tech`
 * manual polling enabled
-* email prefix: cotech-community
+* email prefix: `cotech-community`
 * email site title: CoTech Community
 
 On the Security page:
@@ -87,14 +100,6 @@ On the User Preferences page:
 
 The first post text:
 
-Welcome to the **Cooperative Technologists Community**, we are a network of technology focused cooperatives, [CoTech](https://www.coops.tech/), who are *"building a tech industry that's better for its workers and customers through co-operation, democracy and worker ownership."* This is our open community discussion forum, you don't have to be a member of a coop to join this community but you do need to support [the cooperative values and principles](http://ica.coop/en/whats-co-op/co-operative-identity-values-principles) and have an interest in technology, you can find out more [about us](https://www.coops.tech/about), read [our manifesto](https://www.coops.tech/manifesto), see who we are and who we have worked for and watch [a video made at our first gathering](https://vimeo.com/196080655) on [www.coops.tech](https://www.coops.tech/). We also have [a wiki](https://wiki.coops.tech/) and a decision making group on [Loomio](https://www.loomio.org/g/oVwtKDOn/digital-co-ops), [Slack channels](https://tech-coops.slack.com/) and (for now, we might close it and use Discourse) a public [email list](https://www.email-lists.org/mailman/listinfo/tech-coops). 
+Welcome to the **Cooperative Technologists Community**, we are a network of technology focused digital cooperatives, [CoTech](https://www.coops.tech/), who are *"building a tech industry that's better for its workers and customers through co-operation, democracy and worker ownership."* This is our open community discussion forum, you don't have to be a member of a coop to join this community but you do need to support [the cooperative values and principles](http://ica.coop/en/whats-co-op/co-operative-identity-values-principles) and have an interest in technology, you can find out more [about us](https://www.coops.tech/about), read [our manifesto](https://www.coops.tech/manifesto), see who we are and who we have worked for and watch [a video made at our first gathering](https://vimeo.com/196080655) on [www.coops.tech](https://www.coops.tech/). We also have [a wiki](https://wiki.coops.tech/) and a decision making group on [Loomio](https://www.loomio.org/g/oVwtKDOn/digital-co-ops), [Slack channels](https://tech-coops.slack.com/) and (for now, we might close it and use Discourse) a public [email list](https://www.email-lists.org/mailman/listinfo/tech-coops). 
 
 *Please read [our community guidelines](https://community.coops.tech/guidelines) before signing up for an account here.*
-
-
-
-
-
-
-
-

roles/api/tasks/main.yml

@@ -11,7 +11,7 @@
       src: templates/mail-receiver-environment.json.j2
       dest: /etc/postfix/mail-receiver-environment.json
       mode: 0640
-      group: Debian-exim
+      group: root
       owner: root
 
   when: mail_receiver_environment.stat.exists == False

roles/email/files/00_local

-CHECK_RCPT_LOCAL_ACL_FILE = CONFDIR/check_rcpt_local_acl

roles/email/files/30_exim4-config_discourse

-discourse_transport:
-        driver = pipe
-        command = /usr/local/bin/receive-mail ${local_part}@${domain}
-

roles/email/files/450_exim4-config_discourse

-discourse_router:
-        driver = accept
-        transport = discourse_transport
-

roles/email/templates/update-exim4.j2

-# /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 generate
-# exim configuration macros for the configuration file.
-#
-# 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='internet'
-dc_other_hostnames='{{ hostname }}'
-dc_local_interfaces=''
-dc_readhost=''
-dc_relay_domains=''
-dc_minimaldns='false'
-dc_relay_nets='{{ app_ip_address.stdout }}/32'
-dc_smarthost=''
-CFILEMODE='644'
-dc_use_split_config='true'
-dc_hide_mailname=''
-dc_mailname_in_oh='true'
-dc_localdelivery='mail_spool'
-