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# syntax=docker.io/docker/dockerfile:1
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# This Dockerfile provides two stages: stage-base and stage-final
# This is in preparation for more granular stages (eg ClamAV and Fail2Ban split into their own)
#
# Base stage provides all packages, config, and adds scripts
#
FROM docker.io/debian:11-slim AS stage-base
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ARG DEBIAN_FRONTEND = noninteractive
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ARG DOVECOT_COMMUNITY_REPO = 0
ARG LOG_LEVEL = trace
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SHELL [ "/bin/bash" , "-e" , "-o" , "pipefail" , "-c" ]
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# -----------------------------------------------
# --- Install Basic Software --------------------
# -----------------------------------------------
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COPY target/bin/sedfile /usr/local/bin/sedfile
RUN chmod +x /usr/local/bin/sedfile
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COPY target/scripts/build/* /build/
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COPY target/scripts/helpers/log.sh /usr/local/bin/helpers/log.sh
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RUN /bin/bash /build/packages.sh
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# -----------------------------------------------
# --- ClamAV & FeshClam -------------------------
# -----------------------------------------------
2015-03-28 14:59:15 +00:00
2022-09-30 22:07:06 +00:00
RUN <<EOF
echo '0 */6 * * * clamav /usr/bin/freshclam --quiet' >/etc/cron.d/clamav-freshclam
chmod 644 /etc/clamav/freshclam.conf
sedfile -i 's/Foreground false/Foreground true/g' /etc/clamav/clamd.conf
mkdir /var/run/clamav
chown -R clamav:root /var/run/clamav
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rm -rf /var/log/clamav/
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EOF
2016-10-08 17:02:47 +00:00
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# Copy over latest DB updates from official ClamAV image. Better than running `freshclam` (which requires extra RAM during build)
# hadolint ignore=DL3021
COPY --link --from= docker.io/clamav/clamav:latest /var/lib/clamav /var/lib/clamav
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# -----------------------------------------------
fix: Remove `mkcert.sh` usage + `_setup_ssl` refactor. (#2196)
* chore(refactor): DRY up the `_setup_ssl` method
- `/etc/postfix/ssl` was a bit misleading in usage here. As a maintainer (of my own contribution!) I was confused why only `/etc/postfix/ssl` was referenced and not `/etc/dovecot/ssl`.
- The postfix specific path is unnecessary, dovecot was referencing it via it's config, the same can be done from postfix to a generic DMS specific config location instead.
- This location is defined and created early as `/etc/dms/tls` (with var `DMS_TLS_PATH`). All usage of `/etc/postfix/ssl` has been replaced, making it easier to grok. Several `mkdir` commands related to this have been dropped as a result.
- Likewise, a related `TMP_DMS_TLS_PATH` var provides a reference to the config volume path `/tmp/docker-mailserver` which is used for conditions on presently hard-coded paths.
- Other values that benefit from being DRY have been lifted up into vars. Definitely easier to follow now and makes some further opportunities clearer to tackle in a future refactor.
- `chmod` has been updated where appropriate. Public key/cert is acceptable to have as readable by non-root users (644). The custom type with single fullchain file was not root accessible only, but should as it contains a private key.
- That said, the security benefit can be a bit moot due to source files that were copied remain present, the user would be responsible to ensure similar permissions on their source files.
- I've not touched LetsEncrypt section as I don't have time to investigate into that yet (not familiar with that portion).
---
* chore: Remove mkcert logic and dovecot cert
- No longer serving a purpose.
- Our own TLS startup script handles a variety of cert scenarios, while the dropped code was always generating a self-signed cert and persisting an unused cert regardless with `ONE_DIR=1`.
- To avoid similar issues that DH params had with doveadm validating filepath values in the SSL config, the default dummy values match postfix pointing to "snakeoil" cert. That serves the same purpose as mkcert was covering in the image.
- Bonus, no more hassle with differing mkcert target paths for users replacing our supplied Dovecot with the latest community edition.
---
* Error handling for SSL_TYPE
- Added a panic utility to exit early when SSL_TYPE conditions are misconfigured.
- Some info text had order of key/cert occurrence swapped to be consistent with key then cert.
- Some existing comments moved and rephrased.
- Additional comments added.
- `-f` test for cert files instead of `-e` (true also for directories/devices/symlinks).
- _notify messages lifted out of conditionals so that they always output when the case is hit.
- ~~Empty SSL_TYPE collapsed into catch all panic, while it's contents is now mapped to a new 'disabled' value.~~
---
* Use sedfile + improve sed expressions + update case style
- Uses sedfile when appropriate (file change intentional, not optional match/check).
- sed expressions modified to be DRY and reduce escaping via `-r` flag (acceptable if actual text content contains no `?`,`+`,`()` or `{}` characters, [otherwise they must be escaped](https://www.gnu.org/software/sed/manual/html_node/Extended-regexps.html)).
- sed captures anything matched between the parenthesis`()` and inserts it via `\1` as part of the replacement.
- case statements adopt the `(` prefix, adopting recent shell style for consistency.
---
* Refactor SSL_TYPE=disabled
- Postfix is also disabled now.
- Included heavy inline documentation reference for maintainers.
- Dropped an obsolete postfix config option 'use_tls' on the relayhost function, it was replaced by 'security_level'.
---
* I'm a friggin' sed wizard now
- The `modern` TLS_LEVEL is the default values for the configs they modify. As such, `sedfile` outputs an "Error" which isn't an actual concern, back to regular `sed`.
- I realized that multiple edits for the same file can all be done at once via `-e` (assuming other sed options are the same for each operation), and that `g` suffix is global scope for single line match, not whole file (default as sed iterates through individual lines).
- Some postfix replacements have `smtp` and `smtpd` lines, collapsed into a single `smtpd?` instead now that I know sed better.
---
* tests(fix): Tests that require SSL/TLS to pass
- SSL_TYPE=snakeoil added as temporary workaround.
- nmap tests are being dropped. These were added about 4-5 years ago, I have since made these redundant with the `testssl.sh` tests.
- Additionally the `--link` option is deprecated and IIRC these grades were a bit misleading when I initially used nmap in my own TLS cipher suite update PRs in the past.
- The removed SSL test is already handled in mail_ssl_manual.bats
ldap test:
- Replace `--link` alias option with `--network` and alias assignment.
- Parameterized some values and added the `SSL_TYPE` to resolve the starttls test failure.
privacy test:
- Also needed `SSL_TYPE` to pass the starttls test.
`tests.bats` had another starttls test for imap:
- Workaround for now is to give the main test container `SSL_TYPE=snakeoil`.
---
* Remove the expired lets-encrypt cert
This expired in March 2021. It was originally required when first added back in 2016 as LetsEncrypt was fairly new and not as broadly accepted into OS trust stores.
No longer the case today.
---
* chore: Housekeeping
Not required for this PR branch, little bit of tidying up while working on these two test files.
- privacy test copied over content when extracted from `tests.bats` that isn't relevant.
- ldap test was not as easy to identify the source of DOVECOT_TLS. Added comment to make the prefix connection to `configomat.sh` and `.ext` files more easier to find.
- Additionally converted the two localhost FQDN to vars.
---
* Default SSL_TYPE becomes `''` (aka equivalent to desired `disabled` case)
- This is to prevent other tests from failing by hitting the panic catchall case.
- More ideal would be adjusting tests to default to `disabled`, rather than treating `disabled` as an empty / unset SSL_TYPE value.
---
* Add inline documentation for `dms_panic`
- This could later be better formatted and placed into contributor docs.
Panic with kill (shutdown) not exit (errex):
- `kill 1` from `_shutdown` will send SIGTERM signal to PID 1 (init process).
- `exit 1` within the `start-mailserver.sh` init scripts context, will just exit the initialization script leaving the container running when it shouldn't.
The two previous `_shutdown` methods can benefit from using `dms_panic` wrapper instead to standardize on panic messages.
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# --- Dovecot -----------------------------------
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# -----------------------------------------------
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COPY target/dovecot/auth-passwdfile.inc target/dovecot/auth-master.inc target/dovecot/??-*.conf /etc/dovecot/conf.d/
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COPY target/dovecot/sieve/ /etc/dovecot/sieve/
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COPY target/dovecot/dovecot-purge.cron /etc/cron.d/dovecot-purge.disabled
RUN chmod 0 /etc/cron.d/dovecot-purge.disabled
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WORKDIR /usr/share/dovecot
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# hadolint ignore=SC2016,SC2086,SC2069
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RUN <<EOF
sedfile -i -e 's/include_try \/usr\/share\/dovecot\/protocols\.d/include_try \/etc\/dovecot\/protocols\.d/g' /etc/dovecot/dovecot.conf
sedfile -i -e 's/#mail_plugins = \$mail_plugins/mail_plugins = \$mail_plugins sieve/g' /etc/dovecot/conf.d/15-lda.conf
sedfile -i -e 's/^.*lda_mailbox_autocreate.*/lda_mailbox_autocreate = yes/g' /etc/dovecot/conf.d/15-lda.conf
sedfile -i -e 's/^.*lda_mailbox_autosubscribe.*/lda_mailbox_autosubscribe = yes/g' /etc/dovecot/conf.d/15-lda.conf
sedfile -i -e 's/^.*postmaster_address.*/postmaster_address = ' ${ POSTMASTER_ADDRESS : = "postmaster@domain.com" } '/g' /etc/dovecot/conf.d/15-lda.conf
mkdir -p /usr/lib/dovecot/sieve-pipe /usr/lib/dovecot/sieve-filter /usr/lib/dovecot/sieve-global
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chmod 755 -R /usr/lib/dovecot/sieve-pipe /usr/lib/dovecot/sieve-filter /usr/lib/dovecot/sieve-global
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EOF
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# -----------------------------------------------
# --- LDAP & SpamAssassin's Cron ----------------
# -----------------------------------------------
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COPY target/dovecot/dovecot-ldap.conf.ext /etc/dovecot
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COPY \
target/postfix/ldap-users.cf \
target/postfix/ldap-groups.cf \
target/postfix/ldap-aliases.cf \
target/postfix/ldap-domains.cf \
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target/postfix/ldap-senders.cf \
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/etc/postfix/
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# hadolint ignore=SC2016
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RUN <<EOF
sedfile -i -r 's/^(CRON)=0/\1=1/g' /etc/default/spamassassin
sedfile -i -r 's/^\$INIT restart/supervisorctl restart amavis/g' /etc/spamassassin/sa-update-hooks.d/amavisd-new
mkdir -p /etc/spamassassin/kam/
curl -sSfLo /etc/spamassassin/kam/kam.sa-channels.mcgrail.com.key https://mcgrail.com/downloads/kam.sa-channels.mcgrail.com.key
EOF
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# -----------------------------------------------
# --- PostSRSD, Postgrey & Amavis ---------------
# -----------------------------------------------
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COPY target/postsrsd/postsrsd /etc/default/postsrsd
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COPY target/postgrey/postgrey /etc/default/postgrey
COPY target/postgrey/postgrey.init /etc/init.d/postgrey
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RUN <<EOF
chmod 755 /etc/init.d/postgrey
mkdir /var/run/postgrey
chown postgrey:postgrey /var/run/postgrey
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curl -Lsfo /etc/postgrey/whitelist_clients https://postgrey.schweikert.ch/pub/postgrey_whitelist_clients
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EOF
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COPY target/amavis/conf.d/* /etc/amavis/conf.d/
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RUN <<EOF
sedfile -i -r 's/#(@| \\%)bypass/\1bypass/g' /etc/amavis/conf.d/15-content_filter_mode
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# add users clamav and amavis to each others group
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adduser clamav amavis
adduser amavis clamav
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# no syslog user in Debian compared to Ubuntu
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adduser --system syslog
useradd -u 5000 -d /home/docker -s /bin/bash -p " $( echo docker | openssl passwd -1 -stdin) " docker
echo "0 4 * * * /usr/local/bin/virus-wiper" | crontab -
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chmod 644 /etc/amavis/conf.d/*
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EOF
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# overcomplication necessary for CI
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RUN <<EOF
for _ in { 1..10} ; do
su - amavis -c "razor-admin -create"
sleep 3
if su - amavis -c "razor-admin -register" ; then
EC = 0
break
else
EC = ${ ? }
fi
done
exit ${ EC }
EOF
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# -----------------------------------------------
# --- Fail2Ban, DKIM & DMARC --------------------
# -----------------------------------------------
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COPY target/fail2ban/jail.local /etc/fail2ban/jail.local
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COPY target/fail2ban/fail2ban.d/fixes.local /etc/fail2ban/fail2ban.d/fixes.local
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RUN <<EOF
ln -s /var/log/mail/mail.log /var/log/mail.log
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# disable sshd jail
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rm /etc/fail2ban/jail.d/defaults-debian.conf
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mkdir /var/run/fail2ban
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EOF
2016-04-17 20:59:35 +00:00
2016-09-04 18:37:16 +00:00
COPY target/opendkim/opendkim.conf /etc/opendkim.conf
COPY target/opendkim/default-opendkim /etc/default/opendkim
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COPY target/opendmarc/opendmarc.conf /etc/opendmarc.conf
COPY target/opendmarc/default-opendmarc /etc/default/opendmarc
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COPY target/opendmarc/ignore.hosts /etc/opendmarc/ignore.hosts
2016-01-26 17:26:50 +00:00
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# -----------------------------------------------
# --- Fetchmail, Postfix & Let'sEncrypt ---------
# -----------------------------------------------
2021-01-16 09:16:05 +00:00
2022-03-22 16:53:12 +00:00
# Remove invalid URL from SPF message
# https://bugs.launchpad.net/spf-engine/+bug/1896912
RUN echo 'Reason_Message = Message {rejectdefer} due to: {spf}.' >>/etc/postfix-policyd-spf-python/policyd-spf.conf
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COPY target/fetchmail/fetchmailrc /etc/fetchmailrc_general
2016-09-04 18:37:16 +00:00
COPY target/postfix/main.cf target/postfix/master.cf /etc/postfix/
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# DH parameters for DHE cipher suites, ffdhe4096 is the official standard 4096-bit DH params now part of TLS 1.3
# This file is for TLS <1.3 handshakes that rely on DHE cipher suites
# Handled at build to avoid failures by doveadm validating ssl_dh filepath in 10-ssl.auth (eg generate-accounts)
COPY target/shared/ffdhe4096.pem /etc/postfix/dhparams.pem
COPY target/shared/ffdhe4096.pem /etc/dovecot/dh.pem
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COPY \
target/postfix/header_checks.pcre \
target/postfix/sender_header_filter.pcre \
target/postfix/sender_login_maps.pcre \
/etc/postfix/maps/
2015-03-31 15:27:54 +00:00
2022-09-30 22:07:06 +00:00
RUN <<EOF
: >/etc/aliases
sedfile -i 's/START_DAEMON=no/START_DAEMON=yes/g' /etc/default/fetchmail
fix: Remove `mkcert.sh` usage + `_setup_ssl` refactor. (#2196)
* chore(refactor): DRY up the `_setup_ssl` method
- `/etc/postfix/ssl` was a bit misleading in usage here. As a maintainer (of my own contribution!) I was confused why only `/etc/postfix/ssl` was referenced and not `/etc/dovecot/ssl`.
- The postfix specific path is unnecessary, dovecot was referencing it via it's config, the same can be done from postfix to a generic DMS specific config location instead.
- This location is defined and created early as `/etc/dms/tls` (with var `DMS_TLS_PATH`). All usage of `/etc/postfix/ssl` has been replaced, making it easier to grok. Several `mkdir` commands related to this have been dropped as a result.
- Likewise, a related `TMP_DMS_TLS_PATH` var provides a reference to the config volume path `/tmp/docker-mailserver` which is used for conditions on presently hard-coded paths.
- Other values that benefit from being DRY have been lifted up into vars. Definitely easier to follow now and makes some further opportunities clearer to tackle in a future refactor.
- `chmod` has been updated where appropriate. Public key/cert is acceptable to have as readable by non-root users (644). The custom type with single fullchain file was not root accessible only, but should as it contains a private key.
- That said, the security benefit can be a bit moot due to source files that were copied remain present, the user would be responsible to ensure similar permissions on their source files.
- I've not touched LetsEncrypt section as I don't have time to investigate into that yet (not familiar with that portion).
---
* chore: Remove mkcert logic and dovecot cert
- No longer serving a purpose.
- Our own TLS startup script handles a variety of cert scenarios, while the dropped code was always generating a self-signed cert and persisting an unused cert regardless with `ONE_DIR=1`.
- To avoid similar issues that DH params had with doveadm validating filepath values in the SSL config, the default dummy values match postfix pointing to "snakeoil" cert. That serves the same purpose as mkcert was covering in the image.
- Bonus, no more hassle with differing mkcert target paths for users replacing our supplied Dovecot with the latest community edition.
---
* Error handling for SSL_TYPE
- Added a panic utility to exit early when SSL_TYPE conditions are misconfigured.
- Some info text had order of key/cert occurrence swapped to be consistent with key then cert.
- Some existing comments moved and rephrased.
- Additional comments added.
- `-f` test for cert files instead of `-e` (true also for directories/devices/symlinks).
- _notify messages lifted out of conditionals so that they always output when the case is hit.
- ~~Empty SSL_TYPE collapsed into catch all panic, while it's contents is now mapped to a new 'disabled' value.~~
---
* Use sedfile + improve sed expressions + update case style
- Uses sedfile when appropriate (file change intentional, not optional match/check).
- sed expressions modified to be DRY and reduce escaping via `-r` flag (acceptable if actual text content contains no `?`,`+`,`()` or `{}` characters, [otherwise they must be escaped](https://www.gnu.org/software/sed/manual/html_node/Extended-regexps.html)).
- sed captures anything matched between the parenthesis`()` and inserts it via `\1` as part of the replacement.
- case statements adopt the `(` prefix, adopting recent shell style for consistency.
---
* Refactor SSL_TYPE=disabled
- Postfix is also disabled now.
- Included heavy inline documentation reference for maintainers.
- Dropped an obsolete postfix config option 'use_tls' on the relayhost function, it was replaced by 'security_level'.
---
* I'm a friggin' sed wizard now
- The `modern` TLS_LEVEL is the default values for the configs they modify. As such, `sedfile` outputs an "Error" which isn't an actual concern, back to regular `sed`.
- I realized that multiple edits for the same file can all be done at once via `-e` (assuming other sed options are the same for each operation), and that `g` suffix is global scope for single line match, not whole file (default as sed iterates through individual lines).
- Some postfix replacements have `smtp` and `smtpd` lines, collapsed into a single `smtpd?` instead now that I know sed better.
---
* tests(fix): Tests that require SSL/TLS to pass
- SSL_TYPE=snakeoil added as temporary workaround.
- nmap tests are being dropped. These were added about 4-5 years ago, I have since made these redundant with the `testssl.sh` tests.
- Additionally the `--link` option is deprecated and IIRC these grades were a bit misleading when I initially used nmap in my own TLS cipher suite update PRs in the past.
- The removed SSL test is already handled in mail_ssl_manual.bats
ldap test:
- Replace `--link` alias option with `--network` and alias assignment.
- Parameterized some values and added the `SSL_TYPE` to resolve the starttls test failure.
privacy test:
- Also needed `SSL_TYPE` to pass the starttls test.
`tests.bats` had another starttls test for imap:
- Workaround for now is to give the main test container `SSL_TYPE=snakeoil`.
---
* Remove the expired lets-encrypt cert
This expired in March 2021. It was originally required when first added back in 2016 as LetsEncrypt was fairly new and not as broadly accepted into OS trust stores.
No longer the case today.
---
* chore: Housekeeping
Not required for this PR branch, little bit of tidying up while working on these two test files.
- privacy test copied over content when extracted from `tests.bats` that isn't relevant.
- ldap test was not as easy to identify the source of DOVECOT_TLS. Added comment to make the prefix connection to `configomat.sh` and `.ext` files more easier to find.
- Additionally converted the two localhost FQDN to vars.
---
* Default SSL_TYPE becomes `''` (aka equivalent to desired `disabled` case)
- This is to prevent other tests from failing by hitting the panic catchall case.
- More ideal would be adjusting tests to default to `disabled`, rather than treating `disabled` as an empty / unset SSL_TYPE value.
---
* Add inline documentation for `dms_panic`
- This could later be better formatted and placed into contributor docs.
Panic with kill (shutdown) not exit (errex):
- `kill 1` from `_shutdown` will send SIGTERM signal to PID 1 (init process).
- `exit 1` within the `start-mailserver.sh` init scripts context, will just exit the initialization script leaving the container running when it shouldn't.
The two previous `_shutdown` methods can benefit from using `dms_panic` wrapper instead to standardize on panic messages.
2021-09-19 12:31:11 +00:00
mkdir /var/run/fetchmail && chown fetchmail /var/run/fetchmail
2022-09-30 22:07:06 +00:00
EOF
2021-01-16 09:16:05 +00:00
2021-06-08 01:20:20 +00:00
# -----------------------------------------------
# --- Logs --------------------------------------
# -----------------------------------------------
2021-01-16 09:16:05 +00:00
2022-09-30 22:07:06 +00:00
RUN <<EOF
sedfile -i -r "/^#?compress/c\compress\ncopytruncate" /etc/logrotate.conf
mkdir -p /var/log/mail
chown syslog:root /var/log/mail
touch /var/log/mail/clamav.log
chown -R clamav:root /var/log/mail/clamav.log
touch /var/log/mail/freshclam.log
chown -R clamav:root /var/log/mail/freshclam.log
sedfile -i -r 's|/var/log/mail|/var/log/mail/mail|g' /etc/rsyslog.conf
sedfile -i -r 's|;auth,authpriv.none|;mail.none;mail.error;auth,authpriv.none|g' /etc/rsyslog.conf
sedfile -i -r 's|LogFile /var/log/clamav/|LogFile /var/log/mail/|g' /etc/clamav/clamd.conf
sedfile -i -r 's|UpdateLogFile /var/log/clamav/|UpdateLogFile /var/log/mail/|g' /etc/clamav/freshclam.conf
sedfile -i -r 's|/var/log/clamav|/var/log/mail|g' /etc/logrotate.d/clamav-daemon
sedfile -i -r 's|invoke-rc.d.*|/usr/bin/supervisorctl signal hup clamav >/dev/null \|\| true|g' /etc/logrotate.d/clamav-daemon
sedfile -i -r 's|/var/log/clamav|/var/log/mail|g' /etc/logrotate.d/clamav-freshclam
sedfile -i -r '/postrotate/,/endscript/d' /etc/logrotate.d/clamav-freshclam
sedfile -i -r 's|/var/log/mail|/var/log/mail/mail|g' /etc/logrotate.d/rsyslog
sedfile -i -r '/\/var\/log\/mail\/mail.log/d' /etc/logrotate.d/rsyslog
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# prevent syslog logrotate warnings
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sedfile -i -e 's/\(printerror "could not determine current runlevel"\)/#\1/' /usr/sbin/invoke-rc.d
sedfile -i -e 's/^\(POLICYHELPER=\).*/\1/' /usr/sbin/invoke-rc.d
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# prevent syslog warning about imklog permissions
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sedfile -i -e 's/^module(load=\"imklog\")/#module(load=\"imklog\")/' /etc/rsyslog.conf
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# prevent email when /sbin/init or init system is not existing
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sedfile -i -e 's|invoke-rc.d rsyslog rotate > /dev/null|/usr/bin/supervisorctl signal hup rsyslog >/dev/null|g' /usr/lib/rsyslog/rsyslog-rotate
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EOF
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# -----------------------------------------------
# --- Logwatch ----------------------------------
# -----------------------------------------------
COPY target/logwatch/maillog.conf /etc/logwatch/conf/logfiles/maillog.conf
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# -----------------------------------------------
# --- Supervisord & Start -----------------------
# -----------------------------------------------
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COPY target/supervisor/supervisord.conf /etc/supervisor/supervisord.conf
COPY target/supervisor/conf.d/* /etc/supervisor/conf.d/
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# -----------------------------------------------
# --- Scripts & Miscellaneous--------------------
# -----------------------------------------------
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RUN <<EOF
rm -rf /usr/share/locale/*
rm -rf /usr/share/man/*
rm -rf /usr/share/doc/*
touch /var/log/auth.log
update-locale
rm /etc/postsrsd.secret
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rm /etc/cron.daily/00logwatch
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EOF
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COPY VERSION /
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COPY \
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target/bin/* \
target/scripts/*.sh \
target/scripts/startup/*.sh \
target/scripts/wrapper/*.sh \
target/docker-configomat/configomat.sh \
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/usr/local/bin/
RUN chmod +x /usr/local/bin/*
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COPY target/scripts/helpers /usr/local/bin/helpers
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#
# Final stage focuses only on image config
#
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FROM stage-base AS stage-final
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ARG VCS_REVISION = unknown
ARG VCS_VERSION = edge
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WORKDIR /
EXPOSE 25 587 143 465 993 110 995 4190
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ENTRYPOINT [ "/usr/bin/dumb-init" , "--" ]
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CMD [ "supervisord" , "-c" , "/etc/supervisor/supervisord.conf" ]
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# These ENVs are referenced in target/supervisor/conf.d/saslauth.conf
# and must be present when supervisord starts. Introduced by PR:
# https://github.com/docker-mailserver/docker-mailserver/pull/676
# These ENV are also configured with the same defaults at:
# https://github.com/docker-mailserver/docker-mailserver/blob/672e9cf19a3bb1da309e8cea6ee728e58f905366/target/scripts/helpers/variables.sh
ENV FETCHMAIL_POLL = 300
ENV POSTGREY_AUTO_WHITELIST_CLIENTS = 5
ENV POSTGREY_DELAY = 300
ENV POSTGREY_MAX_AGE = 35
ENV POSTGREY_TEXT = "Delayed by Postgrey"
ENV SASLAUTHD_MECH_OPTIONS = ""
# Add metadata to image:
LABEL org.opencontainers.image.title= "docker-mailserver"
LABEL org.opencontainers.image.vendor= "The Docker Mailserver Organization"
LABEL org.opencontainers.image.authors= "The Docker Mailserver Organization on GitHub"
LABEL org.opencontainers.image.licenses= "MIT"
LABEL org.opencontainers.image.description= "A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.). Only configuration files, no SQL database."
LABEL org.opencontainers.image.url= "https://github.com/docker-mailserver"
LABEL org.opencontainers.image.documentation= "https://github.com/docker-mailserver/docker-mailserver/blob/master/README.md"
LABEL org.opencontainers.image.source= "https://github.com/docker-mailserver/docker-mailserver"
# ARG invalidates cache when it is used by a layer (implicitly affects RUN)
# Thus to maximize cache, keep these lines last:
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LABEL org.opencontainers.image.revision= ${ VCS_REVISION }
LABEL org.opencontainers.image.version= ${ VCS_VERSION }
