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docker-mailserver/target/scripts/helpers/aliases.sh
Brennan Kinney a7e6439a39
fix: Workaround `postconf` write settling logic (#2998)
* fix: Workaround `postconf` write settle logic

After updating `main.cf`, to avoid an enforced delay from reading the config by postfix tools, we can ensure the modified time is at least 2 seconds in the past as a workaround. This should be ok with our usage AFAIK.

Shaves off 2+ seconds roughly off each container startup, reduces roughly 2+ minutes off tests.

* chore: Only modify `mtime` if less than 2 seconds ago

- Slight improvement by avoiding unnecessary writes with a conditional check on the util method.
- Can more comfortably call this during `postfix reload` in the change detection cycle now.
- Identified other tests that'd benefit from this, created a helper method to call instead of copy/paste.
- The `setup email restrict` command also did a modification and reload. Added util method here too.

* tests(fix): `mail_smtponly.bats` should wait for Postfix

- `postfix reload` fails if the service is not ready yet.
- `service postfix reload` and `/etc/init.d/postfix reload` presumably wait until it is ready? (as these work regardless)

* chore: Review feedback - Move reload method into utilities
2023-01-13 10:10:58 +13:00

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#!/bin/bash
# Support for Postfix aliases
# NOTE: LDAP doesn't appear to use this, but the docs page: "Use Cases | Forward-Only Mail-Server with LDAP"
# does have an example where /etc/postfix/virtual is referenced in addition to ldap config for Postfix `main.cf:virtual_alias_maps`.
# `setup-stack.sh:_setup_ldap` does not seem to configure for `/etc/postfix/virtual however.`
# NOTE: `accounts.sh` and `relay.sh:_populate_relayhost_map` also process on `postfix-virtual.cf`.
function _handle_postfix_virtual_config
{
: >/etc/postfix/virtual
local DATABASE_VIRTUAL=/tmp/docker-mailserver/postfix-virtual.cf
if [[ -f ${DATABASE_VIRTUAL} ]]
then
# fixing old virtual user file
if grep -q ",$" "${DATABASE_VIRTUAL}"
then
sed -i -e "s|, |,|g" -e "s|,$||g" "${DATABASE_VIRTUAL}"
fi
cp -f "${DATABASE_VIRTUAL}" /etc/postfix/virtual
else
_log 'debug' "'${DATABASE_VIRTUAL}' not provided - no mail alias/forward created"
fi
}
function _handle_postfix_regexp_config
{
: >/etc/postfix/regexp
if [[ -f /tmp/docker-mailserver/postfix-regexp.cf ]]
then
_log 'trace' "Adding regexp alias file postfix-regexp.cf"
cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
if ! grep 'virtual_alias_maps.*pcre:/etc/postfix/regexp' /etc/postfix/main.cf
then
sed -i -E \
's|virtual_alias_maps(.*)|virtual_alias_maps\1 pcre:/etc/postfix/regexp|g' \
/etc/postfix/main.cf
fi
fi
}
function _handle_postfix_aliases_config
{
_log 'trace' 'Configuring root alias'
echo "root: ${POSTMASTER_ADDRESS}" >/etc/aliases
local DATABASE_ALIASES='/tmp/docker-mailserver/postfix-aliases.cf'
[[ -f ${DATABASE_ALIASES} ]] && cat "${DATABASE_ALIASES}" >>/etc/aliases
_adjust_mtime_for_postfix_maincf
postalias /etc/aliases
}
# Other scripts should call this method, rather than the ones above:
function _create_aliases
{
_handle_postfix_virtual_config
_handle_postfix_regexp_config
_handle_postfix_aliases_config
}