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Merge next into master

This commit is contained in:
Erik Wramner 2020-04-05 09:26:09 +02:00
commit 73b8d65dd3
14 changed files with 188 additions and 83 deletions

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@ -1,4 +1,4 @@
FROM debian:stretch-slim
FROM debian:buster-slim
ARG VCS_REF
ARG VCS_VERSION
@ -29,11 +29,11 @@ SHELL ["/bin/bash", "-o", "pipefail", "-c"]
# Packages
# hadolint ignore=DL3015
RUN echo "deb http://http.debian.net/debian stretch-backports main" | tee -a /etc/apt/sources.list.d/stretch-bp.list && \
RUN \
apt-get update -q --fix-missing && \
apt-get -y install postfix && \
# TODO installing postfix with --no-install-recommends makes "checking ssl: generated default cert works correctly" fail
apt-get -y install --no-install-recommends \
altermime \
amavisd-new \
apt-transport-https \
arj \
@ -56,6 +56,7 @@ RUN echo "deb http://http.debian.net/debian stretch-backports main" | tee -a /et
iptables \
locales \
logwatch \
lhasa \
libdate-manip-perl \
liblz4-tool \
libmail-spf-perl \
@ -77,7 +78,8 @@ RUN echo "deb http://http.debian.net/debian stretch-backports main" | tee -a /et
postsrsd \
pyzor \
razor \
ripole \
# TODO not present in buster?
#ripole \
rpm2cpio \
rsyslog \
sasl2-bin \
@ -88,14 +90,15 @@ RUN echo "deb http://http.debian.net/debian stretch-backports main" | tee -a /et
unzip \
whois \
xz-utils \
zoo \
&& \
# TODO not present in buster?
#zoo \
#&& \
# use Dovecot community repo to react faster on security updates
curl https://repo.dovecot.org/DOVECOT-REPO-GPG | gpg --import && \
gpg --export ED409DA1 > /etc/apt/trusted.gpg.d/dovecot.gpg && \
echo "deb https://repo.dovecot.org/ce-2.3-latest/debian/stretch stretch main" > /etc/apt/sources.list.d/dovecot-community.list && \
apt-get update -q --fix-missing && \
apt-get -y install --no-install-recommends \
#curl https://repo.dovecot.org/DOVECOT-REPO-GPG | gpg --import && \
#gpg --export ED409DA1 > /etc/apt/trusted.gpg.d/dovecot.gpg && \
#echo "deb https://repo.dovecot.org/ce-2.3-latest/debian/stretch stretch main" > /etc/apt/sources.list.d/dovecot-community.list && \
#apt-get update -q --fix-missing && \
#apt-get -y install --no-install-recommends \
dovecot-core \
dovecot-imapd \
dovecot-ldap \
@ -116,17 +119,6 @@ RUN echo "deb http://http.debian.net/debian stretch-backports main" | tee -a /et
rm -f /etc/postsrsd.secret && \
rm -f /etc/cron.daily/00logwatch
# install filebeat for logging
RUN curl https://packages.elasticsearch.org/GPG-KEY-elasticsearch | apt-key add - && \
echo "deb http://packages.elastic.co/beats/apt stable main" | tee -a /etc/apt/sources.list.d/beats.list && \
apt-get update -q --fix-missing && \
apt-get -y install --no-install-recommends \
filebeat \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
COPY target/filebeat.yml.tmpl /etc/filebeat/filebeat.yml.tmpl
RUN echo "0 */6 * * * clamav /usr/bin/freshclam --quiet" > /etc/cron.d/clamav-freshclam && \
chmod 644 /etc/clamav/freshclam.conf && \
freshclam && \
@ -189,7 +181,8 @@ RUN sed -i -r 's/#(@| \\%)bypass/\1bypass/g' /etc/amavis/conf.d/15-content_fil
# Configure Fail2ban
COPY target/fail2ban/jail.conf /etc/fail2ban/jail.conf
COPY target/fail2ban/filter.d/dovecot.conf /etc/fail2ban/filter.d/dovecot.conf
RUN echo "ignoreregex =" >> /etc/fail2ban/filter.d/postfix-sasl.conf && mkdir /var/run/fail2ban
COPY target/fail2ban/filter.d/postfix-sasl.conf /etc/fail2ban/filter.d/postfix-sasl.conf
RUN mkdir /var/run/fail2ban
# Enables Pyzor and Razor
RUN su - amavis -c "razor-admin -create && \
@ -251,6 +244,11 @@ COPY target/supervisor/conf.d/* /etc/supervisor/conf.d/
WORKDIR /
# Switch iptables and ip6tables to legacy for fail2ban
RUN update-alternatives --set iptables /usr/sbin/iptables-legacy \
&& update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
EXPOSE 25 587 143 465 993 110 995 4190
CMD ["supervisord", "-c", "/etc/supervisor/supervisord.conf"]

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@ -9,8 +9,8 @@ Easy to deploy and upgrade.
## ANNOUNCEMENT
Some time VERY SOON we will merge the next branch based on Debian Buster to master.
That means the docker image latest will change. The change may break things!
At this point we have merged the next branch based on Debian Buster into master.
That means the docker image latest uses Buster. The change may break things!
The following possibly breaking changes are known:
- Filebeat is removed and should be handled by another container, see [Wiki](https://github.com/tomav/docker-mailserver/wiki/).
@ -122,7 +122,7 @@ If you got any problems with SPF and/or forwarding mails, give [SRS](https://git
Your config folder will be mounted in `/tmp/docker-mailserver/`. To understand how things work on boot, please have a look at [start-mailserver.sh](https://github.com/tomav/docker-mailserver/blob/master/target/start-mailserver.sh)
`restart: always` ensures that the mail server container (and ELK container when using the mail server together with ELK stack) is automatically restarted by Docker in cases like a Docker service or host restart or container exit.
`restart: always` ensures that the mail server container (and Filebeat/ELK containers when using the mail server together with ELK stack) is automatically restarted by Docker in cases like a Docker service or host restart or container exit.
#### Exposed ports
* 25 receiving email from other mailservers

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@ -0,0 +1,16 @@
filebeat.config:
modules:
path: ${path.config}/modules.d/*.yml
reload.enabled: false
filebeat.autodiscover:
providers:
- type: docker
hints.enabled: true
hints.default_config.enabled: false
processors:
- add_cloud_metadata: ~
output.logstash:
hosts: ["127.0.0.1:5044"]

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@ -8,6 +8,10 @@ services:
container_name: ${CONTAINER_NAME}
links:
- elk
labels:
- "co.elastic.logs/enabled=true"
- "co.elastic.logs/module=system"
- "co.elastic.logs/fileset.stdout=syslog"
ports:
- "25:25"
- "143:143"
@ -24,13 +28,27 @@ services:
- NET_ADMIN
- SYS_PTRACE
restart: always
filebeat:
image: docker.elastic.co/beats/filebeat:7.6.1
user: root
volumes:
- ./config/filebeat.docker.yml:/usr/share/filebeat/filebeat.yml:ro
- /var/run/docker.sock:/var/run/docker.sock:ro
- /var/lib/docker/containers/:/var/lib/docker/containers/:ro
command: ["filebeat", "-e", "--strict.perms=false"]
restart: always
elk:
build: elk
build:
context: elk
args:
- MAXMIND_LICENSE
ports:
- "5601:5601"
- "9200:9200"
- "5044:5044"
- "5000:5000"
env_file:
- elk/.env
restart: always
volumes:

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@ -0,0 +1,42 @@
version: '2'
services:
mail:
image: tvial/docker-mailserver:latest
hostname: ${HOSTNAME}
domainname: ${DOMAINNAME}
container_name: ${CONTAINER_NAME}
ports:
- "25:25"
- "143:143"
- "587:587"
- "993:993"
labels:
- "co.elastic.logs/enabled=true"
- "co.elastic.logs/module=system"
- "co.elastic.logs/fileset.stdout=syslog"
volumes:
- maildata:/var/mail
- mailstate:/var/mail-state
- maillogs:/var/log/mail
- ./config/:/tmp/docker-mailserver/
env_file:
- .env
- env-mailserver
cap_add:
- NET_ADMIN
- SYS_PTRACE
restart: always
filebeat:
image: docker.elastic.co/beats/filebeat:7.6.1
user: root
volumes:
- ./config/filebeat.docker.yml:/usr/share/filebeat/filebeat.yml:ro
- /var/run/docker.sock:/var/run/docker.sock:ro
- /var/lib/docker/containers/:/var/lib/docker/containers/:ro
command: ["filebeat", "-e", "--strict.perms=false"]
restart: always
volumes:
maildata:
driver: local
maillogs:
driver: local

1
elk/.env.dist Normal file
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@ -0,0 +1 @@
MAXMIND_LICENSE=

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@ -1,4 +1,4 @@
FROM sebp/elk:720
FROM sebp/elk:761
RUN mkdir /etc/logstash/patterns.d
#postfix grok and filter
@ -10,15 +10,18 @@ COPY 16-amavis.conf /etc/logstash/conf.d
# dovecot grok and filter
RUN curl -L https://raw.githubusercontent.com/ninech/logstash-patterns/master/patterns.d/dovecot.grok > /etc/logstash/patterns.d/dovecot.grok
RUN curl -L https://raw.githubusercontent.com/ninech/logstash-patterns/master/exmples/50-filter-dovecot.conf > /etc/logstash/conf.d/17-filter-dovecot.conf
# FIXME: may be a cron job?
# FIXME: may be a cron job?
SHELL ["/bin/bash", "-o", "pipefail", "-c"]
ARG MAXMIND_LICENSE
RUN mkdir -p /usr/share/GeoIP && \
curl -L http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.mmdb.gz | gunzip -c - > /usr/share/GeoIP/GeoLiteCity.dat
curl -L "https://download.maxmind.com/app/geoip_download?edition_id=GeoLite2-City&license_key=${MAXMIND_LICENSE}&suffix=tar.gz" \
| tar zx --to-stdout --wildcards --no-anchored '*.mmdb' > /usr/share/GeoIP/GeoLiteCity.dat
WORKDIR ${LOGSTASH_HOME}
RUN gosu logstash bin/logstash-plugin install --local --no-verify logstash-filter-geoip
# override beats input
# override beats input
COPY 02-beats-input.conf /etc/logstash/conf.d/
# override syslog
COPY 10-syslog.conf /etc/logstash/conf.d/

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@ -0,0 +1,16 @@
version: '2'
services:
elk:
build:
context: .
args:
- MAXMIND_LICENSE
ports:
- "5601:5601"
- "9200:9200"
- "5044:5044"
- "5000:5000"
env_file:
- .env
restart: always

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@ -0,0 +1,12 @@
use strict;
# Override options set in earlier files, use 50-user to override these
# Bounce spam, the default option for buster is D_PASS to deliver
$final_spam_destiny = D_BOUNCE;
# Higher log level to get expected messages at startup
$log_level = 2;
#------------ Do not modify anything below this line -------------
1; # ensure a defined return

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@ -0,0 +1,19 @@
# Fail2Ban filter for postfix authentication failures
[INCLUDES]
before = common.conf
[Definition]
_daemon = postfix(-\w+)?/(?:submission/|smtps/)?smtp[ds]
failregex = ^%(__prefix_line)swarning: [-._\w]+\[<HOST>\]: SASL ((?i)LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed(:[ A-Za-z0-9+/:]*={0,2})?\s*$
ignoreregex = authentication failed: Connection lost to authentication server$
[Init]
journalmatch = _SYSTEMD_UNIT=postfix.service
ignoreregex =

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@ -1,13 +0,0 @@
output:
logstash:
enabled: true
hosts:
- $ELK_HOST:$ELK_PORT
filebeat:
prospectors:
-
paths:
- /var/log/mail/mail.log
document_type: syslog

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@ -96,10 +96,6 @@ function register_functions() {
_register_setup_function "_setup_default_vars"
_register_setup_function "_setup_file_permissions"
if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then
_register_setup_function "_setup_elk_forwarder"
fi
if [ "$SMTP_ONLY" != 1 ]; then
_register_setup_function "_setup_dovecot"
_register_setup_function "_setup_dovecot_dhparam"
@ -212,10 +208,6 @@ function register_functions() {
_register_start_daemon "_start_daemons_cron"
_register_start_daemon "_start_daemons_rsyslog"
if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then
_register_start_daemon "_start_daemons_filebeat"
fi
if [ "$SMTP_ONLY" != 1 ]; then
_register_start_daemon "_start_daemons_dovecot"
fi
@ -1465,18 +1457,6 @@ function _setup_security_stack() {
fi
}
function _setup_elk_forwarder() {
notify 'task' 'Setting up Elk forwarder'
ELK_PORT=${ELK_PORT:="5044"}
ELK_HOST=${ELK_HOST:="elk"}
notify 'inf' "Enabling log forwarding to ELK ($ELK_HOST:$ELK_PORT)"
cat /etc/filebeat/filebeat.yml.tmpl \
| sed "s@\$ELK_HOST@$ELK_HOST@g" \
| sed "s@\$ELK_PORT@$ELK_PORT@g" \
> /etc/filebeat/filebeat.yml
}
function _setup_logrotate() {
notify 'inf' "Setting up logrotate"
@ -1763,11 +1743,6 @@ function _start_daemons_dovecot() {
#fi
}
function _start_daemons_filebeat() {
notify 'task' 'Starting filebeat' 'n'
supervisorctl start filebeat
}
function _start_daemons_fetchmail() {
notify 'task' 'Starting fetchmail' 'n'
/usr/local/bin/setup-fetchmail

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@ -65,14 +65,6 @@ stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log
command=/usr/sbin/dovecot -F -c /etc/dovecot/dovecot.conf
[program:filebeat]
startsecs=0
autostart=false
autorestart=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log
command=/usr/bin/filebeat -c /etc/filebeat/filebeat.yml
[program:clamav]
startsecs=0
autostart=false

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@ -217,10 +217,8 @@ function count_processed_changes() {
}
@test "checking smtp: delivers mail to existing account" {
#run docker exec mail /bin/sh -c "grep 'postfix/lmtp' /var/log/mail/mail.log | grep 'status=sent' | grep ' Saved)' | sed 's/.* to=</</g' | sed 's/, relay.*//g' | sort | uniq -c | tr -s \" \" | tr '\n' ';'"
run docker exec mail /bin/sh -c "grep 'postfix/lmtp' /var/log/mail/mail.log | grep 'status=sent' | grep ' Saved)' | sed 's/.* to=</</g' | sed 's/, relay.*//g' | sort | uniq -c | tr -s \" \""
assert_success
#assert_output " 1 <added@localhost.localdomain>; 6 <user1@localhost.localdomain>; 1 <user1@localhost.localdomain>, orig_to=<postmaster@my-domain.com>; 1 <user1@localhost.localdomain>, orig_to=<root>; 1 <user1~test@localhost.localdomain>; 2 <user2@otherdomain.tld>;"
cat <<'EOF' | assert_output
1 <added@localhost.localdomain>
6 <user1@localhost.localdomain>
@ -284,7 +282,7 @@ EOF
}
@test "checking smtp: redirects mail to external aliases" {
run docker exec mail /bin/sh -c "grep -- '-> <external1@otherdomain.tld>' /var/log/mail/mail.log | wc -l"
run docker exec mail /bin/sh -c "grep -- '-> <external1@otherdomain.tld>' /var/log/mail/mail.log* | grep RelayedInbound | wc -l"
assert_success
assert_output 2
}
@ -785,9 +783,37 @@ EOF
}
@test "checking system: amavis decoders installed and available" {
run docker exec mail /bin/sh -c "grep -E '.*(Internal decoder|Found decoder) for\s+\..*' /var/log/mail/mail.log|grep -Eo '(mail|Z|gz|bz2|xz|lzma|lrz|lzo|lz4|rpm|cpio|tar|deb|rar|arj|arc|zoo|doc|cab|tnef|zip|kmz|7z|jar|swf|lha|iso|exe)' | sort | uniq | tr '\n' ';'"
run docker exec mail /bin/sh -c "grep -E '.*(Internal decoder|Found decoder) for\s+\..*' /var/log/mail/mail.log*|grep -Eo '(mail|Z|gz|bz2|xz|lzma|lrz|lzo|lz4|rpm|cpio|tar|deb|rar|arj|arc|zoo|doc|cab|tnef|zip|kmz|7z|jar|swf|lha|iso|exe)' | sort | uniq"
assert_success
assert_output "7z;Z;arc;arj;bz2;cab;cpio;deb;doc;exe;gz;iso;jar;kmz;lha;lrz;lz4;lzma;lzo;mail;rar;rpm;swf;tar;tnef;xz;zip;zoo;"
# Support for doc and zoo removed in buster
cat <<'EOF' | assert_output
7z
Z
arc
arj
bz2
cab
cpio
deb
exe
gz
iso
jar
kmz
lha
lrz
lz4
lzma
lzo
mail
rar
rpm
swf
tar
tnef
xz
zip
EOF
}
@ -1307,6 +1333,6 @@ EOF
#
@test "checking that the container stops cleanly" {
run docker stop -t 60 mail
run docker stop -t 60 mail_override_hostname
assert_success
}