mailcow/data/Dockerfiles/clamd/clamd.sh
Peter fd7269d455
[ClamAV] Move to official ClamAV Docker container (#4525)
Since ClamAV starts to offer Docker containers this PR introduces said containers so we don't need to build the container on our own anymore. This was an easy task until v0.104, but then ClamAV changed its buildprocess to use cmake and with v0.105 it also needs the Rust toolchain -> https://docs.clamav.net/manual/Installing/Installing-from-source-Unix.html#ubuntu--debian

Here are the main changes for the new container

Creates clamd-db-vol-1 volume
Still uses the same config files
Downloads ClamAV databases in said volume
Smaller container footprint 13MB vs 150MB

---

* [ClamAV] Move to official ClamAV Docker container

* [ClamAV] Remove vim + nano

* [ClamAV] Use normal version in docker-compose
2022-03-28 11:07:47 +02:00

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#!/bin/bash
if [[ "${SKIP_CLAMD}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
echo "SKIP_CLAMD=y, skipping ClamAV..."
sleep 365d
exit 0
fi
# Cleaning up garbage
echo "Cleaning up tmp files..."
rm -rf /var/lib/clamav/clamav-*.tmp
# Prepare whitelist
mkdir -p /run/clamav /var/lib/clamav
#if [[ -s /etc/clamav/whitelist.ign2 ]]; then
# echo "Copying non-empty whitelist.ign2 to /var/lib/clamav/whitelist.ign2"
# cp /etc/clamav/whitelist.ign2 /var/lib/clamav/whitelist.ign2
#fi
if [[ ! -f /var/lib/clamav/whitelist.ign2 ]]; then
echo "Creating /var/lib/clamav/whitelist.ign2"
cat <<EOF > /var/lib/clamav/whitelist.ign2
# Please restart ClamAV after changing signatures
Example-Signature.Ignore-1
PUA.Win.Trojan.EmbeddedPDF-1
PUA.Pdf.Trojan.EmbeddedJavaScript-1
PUA.Pdf.Trojan.OpenActionObjectwithJavascript-1
EOF
fi
chown clamav:clamav -R /var/lib/clamav /run/clamav
chmod 755 /var/lib/clamav
chmod 644 -R /var/lib/clamav/*
chmod 750 /run/clamav
stat /var/lib/clamav/whitelist.ign2
dos2unix /var/lib/clamav/whitelist.ign2
sed -i '/^\s*$/d' /var/lib/clamav/whitelist.ign2
# Copying to /etc/clamav to expose file as-is to administrator
cp -p /var/lib/clamav/whitelist.ign2 /etc/clamav/whitelist.ign2
BACKGROUND_TASKS=()
echo "Running freshclam..."
freshclam
(
while true; do
sleep 12600
freshclam
done
) &
BACKGROUND_TASKS+=($!)
(
while true; do
sleep 10m
SANE_MIRRORS="$(dig +ignore +short rsync.sanesecurity.net)"
for sane_mirror in ${SANE_MIRRORS}; do
CE=
rsync -avp --chown=clamav:clamav --chmod=Du=rwx,Dgo=rx,Fu=rw,Fog=r --timeout=5 rsync://${sane_mirror}/sanesecurity/ \
--include 'blurl.ndb' \
--include 'junk.ndb' \
--include 'jurlbl.ndb' \
--include 'jurbla.ndb' \
--include 'phishtank.ndb' \
--include 'phish.ndb' \
--include 'spamimg.hdb' \
--include 'scam.ndb' \
--include 'rogue.hdb' \
--include 'sanesecurity.ftm' \
--include 'sigwhitelist.ign2' \
--exclude='*' /var/lib/clamav/
CE=$?
chmod 755 /var/lib/clamav/
if [ ${CE} -eq 0 ]; then
while [ ! -z "$(pidof freshclam)" ]; do
echo "Freshclam is active, waiting..."
sleep 5
done
echo RELOAD | nc clamd-mailcow 3310
break
fi
done
sleep 12h
done
) &
BACKGROUND_TASKS+=($!)
nice -n10 clamd &
BACKGROUND_TASKS+=($!)
while true; do
for bg_task in ${BACKGROUND_TASKS[*]}; do
if ! kill -0 ${bg_task} 1>&2; then
echo "Worker ${bg_task} died, stopping container waiting for respawn..."
kill -TERM 1
fi
sleep 10
done
done