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feat: Allow changing the Dovecot vmail UID/GID via ENV (#3550)

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Some deployment scenarios are not compatible with `5000:5000` static vmail user with `/var/mail`. This feature allows adjusting the defaults to a UID / GID that is compatible.

Signed-off-by: vincent <vincent@ducamps.win>
Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
This commit is contained in:
Vincent Ducamps 2023-09-30 13:20:03 +02:00 • committed by GitHub
parent 89cb6d85b9
commit bd96c1161e
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 112 additions and 4 deletions
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4
target/scripts/helpers/accounts.sh
View file

@ -70,7 +70,7 @@ function _create_accounts() {
# Dovecot's userdb has the following format
# user:password:uid:gid:(gecos):home:(shell):extra_fields
DOVECOT_USERDB_LINE="${LOGIN}:${PASS}:5000:5000::/var/mail/${DOMAIN}/${USER}/home::${USER_ATTRIBUTES}"
DOVECOT_USERDB_LINE="${LOGIN}:${PASS}:${DMS_VMAIL_UID}:${DMS_VMAIL_GID}::/var/mail/${DOMAIN}/${USER}/home::${USER_ATTRIBUTES}"
if grep -qF "${DOVECOT_USERDB_LINE}" "${DOVECOT_USERDB_FILE}"; then
_log 'warn' "Login '${LOGIN}' will not be added to '${DOVECOT_USERDB_FILE}' twice"
else
@ -141,7 +141,7 @@ function _create_dovecot_alias_dummy_accounts() {
fi
fi
DOVECOT_USERDB_LINE="${ALIAS}:${REAL_ACC[1]}:5000:5000::/var/mail/${REAL_DOMAINNAME}/${REAL_USERNAME}::${REAL_ACC[2]:-}"
DOVECOT_USERDB_LINE="${ALIAS}:${REAL_ACC[1]}:${DMS_VMAIL_UID}:${DMS_VMAIL_GID}::/var/mail/${REAL_DOMAINNAME}/${REAL_USERNAME}::${REAL_ACC[2]:-}"
if grep -qi "^${ALIAS}:" "${DOVECOT_USERDB_FILE}"; then
_log 'warn' "Alias '${ALIAS}' will not be added to '${DOVECOT_USERDB_FILE}' twice"
else

4
target/scripts/helpers/utils.sh
View file

@ -39,9 +39,9 @@ function _get_dms_env_value() {
# /var/mail folders (used during startup and change detection handling).
function _chown_var_mail_if_necessary() {
# fix permissions, but skip this if 3 levels deep the user id is already set
if find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \) | read -r; then
if find /var/mail -maxdepth 3 -a \( \! -user "${DMS_VMAIL_UID}" -o \! -group "${DMS_VMAIL_GID}" \) | read -r; then
_log 'trace' 'Fixing /var/mail permissions'
chown -R 5000:5000 /var/mail || return 1
chown -R "${DMS_VMAIL_UID}:${DMS_VMAIL_GID}" /var/mail || return 1
fi
}