Hi


I did the following steps:
1) Created a private mirror as described in https://www.clamav.net/documents/private-local-mirrors and mirrored all "cvd" files.

2) Cloud-init ensures that on boot the files are downloaded from the private mirror and are always available locally. Tthen cloud-init restarts the clamav daemon.

3) Configured freshclam with
PrivateMirror https://my-clamav-mirror/clamav
ScriptedUpdates no
Checks 3

4) Now freshclam works fine, however the clamav daemon does not, even if the cvd are available locally.
$ sudo systemctl status clamav-daemon.service
● clamav-daemon.service - Clam AntiVirus userspace daemon
   Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/clamav-daemon.service.d
           └─extend.conf
   Active: inactive (dead)
Condition: start condition failed at Tue 2021-01-26 12:46:17 UTC; 3h 9min ago
           └─ ConditionPathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc} was not met
     Docs: man:clamd(8)
           man:clamd.conf(5)
           https://www.clamav.net/documents/

The systemd unit file has 2 ConditionPathExistsGlob that require the additional files "main.cld", "main.inc", "daily.cld", "daily.inc" to be available, for the service to start.
$ cat /lib/systemd/system/clamav-daemon.service
[Unit]
Description=Clam AntiVirus userspace daemon
Documentation=man:clamd(8) man:clamd.conf(5) https://www.clamav.net/documents/
# Check for database existence
ConditionPathExistsGlob=/var/lib/clamav/main.{c[vl]d,inc}
ConditionPathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc}

[Service]
ExecStart=/usr/sbin/clamd --foreground=true
# Reload the database
ExecReload=/bin/kill -USR2 $MAINPID
StandardOutput=syslog
TimeoutStartSec=420

[Install]
WantedBy=multi-user.target


5) The "main.cld", "main.inc", "daily.cld", "daily.inc" files are not available to download from the main download site

$ curl --head -s https://database.clamav.net/daily.cld  | grep HTTP
HTTP/2 404
$ curl --head -s https://database.clamav.net/daily.inc  | grep HTTP
HTTP/2 404
$ curl --head -s https://database.clamav.net/main.cld   | grep HTTP
HTTP/2 404
$ curl --head -s https://database.clamav.net/main.inc   | grep HTTP
HTTP/2 404


6) I ran the suggested clamdownloader.pl (again from https://www.clamav.net/documents/private-local-mirrors) but I don't see any
$ ls -al /tmp/clam
total 222848
drwxrwxr-x  3 ubuntu ubuntu      4096 Jan 26 16:27 .
drwxrwxrwt 93 root   root       12288 Jan 26 16:27 ..
-rw-rw-r--  1 ubuntu ubuntu    296388 Sep 19  2019 bytecode.cvd
-rw-rw-r--  1 ubuntu ubuntu 110005306 Jan 25 12:28 daily.cvd
-rw-rw-r--  1 ubuntu ubuntu        42 Jan 26 16:27 dns.txt
-rw-rw-r--  1 ubuntu ubuntu 117859675 Nov 25  2019 main.cvd
drwxrwxr-x  2 ubuntu ubuntu      4096 Jan 26 16:27 temp

Regards
Vangelis Katsikaros