mtail does not work because Debian package is outdated

[link2xt]

mtail relies on reading from stdin,
but stdin support was only added in https://github.com/google/mtail/releases/tag/v3.0.0-rc55

Debian packages 3.0.0~rc50

Related issue from mtail where stdin support was discussed: google/mtail#3

[missytake]

we could download a binary from mtail's github releases, but do we want to unconditionally download a google binary to the server? With the package in the debian repositories I am slightly more confident

[link2xt]

It seems to work with the current config:

[Unit]
Description=mtail

[Service]
Type=simple
ExecStart=/bin/sh -c "journalctl -f -o short-iso -n 0 | /usr/bin/mtail --address=192.168.10.4 --port=3903 --progs /etc/mtail --logtostderr --logs /dev/stdin"
Restart=on-failure

[Install]
WantedBy=multi-user.target

mtail version is
mtail version 3.0.0~rc50 git revision 3.0.0~rc50-1+b6 go version go1.19.8 go arch amd64 go os linux