Add cron worker with journalctl cleaner

[patrickelectric]

Helps #2328

[Williangalvani]

should we use a script instead? we need something to cleanup the autopilot and mavlink logs from time to time, too 🤔

[patrickelectric]

should we use a script instead? we need something to cleanup the autopilot and mavlink logs from time to time, too 🤔

what you mean by script ?

[Williangalvani]

what you mean by script ?

never mind, if we have cron working, we can just had other entries for cleaning different things

[patrickelectric]

what you mean by script ?

never mind, if we have cron working, we can just had other entries for cleaning different things

yes, that the plan

[joaoantoniocardoso]

The idea of adding a cron is interesting for our system, however, journalctl is a log manager that doesn't require user intervention: it has configurations like (1) log size, (2) free disk size, (3) rate limit, (4) compression, and it will vacuum automatically.

https://www.freedesktop.org/software/systemd/man/latest/journald.conf.html

[patrickelectric]

What is better, calling journalctl configuration command or working on journalctl configuration file/parameters, dealing with user custom configuration and identifying (based in the OS), which of the following files to change ?
/etc/systemd/journald.conf
/run/systemd/journald.conf
/usr/local/lib/systemd/journald.conf
/usr/lib/systemd/journald.conf
/etc/systemd/journald.conf.d/.conf
/run/systemd/journald.conf.d/.conf
/usr/local/lib/systemd/journald.conf.d/*.conf

[patrickelectric]

To me it adds extra complexity at the moment, what is the problem of the current approach ?

[joaoantoniocardoso]

To me it adds extra complexity at the moment, what is the problem of the current approach ?

(1) we are taking power from the administrator, and (2) we are reinventing the wheel instead of configuring a basic system tool.

What I recommend is that when installing the system, we should overwrite (with a backup) /etc/systemd/journald.conf, print a message about it, and if the administrator wants a different configuration from our default, he can just change the configs there after installing it.

[patrickelectric]

To me it adds extra complexity at the moment, what is the problem of the current approach ?

(1) we are taking power from the administrator, and (2) we are reinventing the wheel instead of configuring a basic system tool.

What I recommend is that when installing the system, we should overwrite (with a backup) /etc/systemd/journald.conf, print a message about it, and if the administrator wants a different configuration from our default, he can just change the configs there after installing it.

Installation does not fix the problem for current BlueOS systems.

[joaoantoniocardoso]

To me it adds extra complexity at the moment, what is the problem of the current approach ?

(1) we are taking power from the administrator, and (2) we are reinventing the wheel instead of configuring a basic system tool.
What I recommend is that when installing the system, we should overwrite (with a backup) /etc/systemd/journald.conf, print a message about it, and if the administrator wants a different configuration from our default, he can just change the configs there after installing it.

Installation does not fix the problem for current BlueOS systems.

Can't we install it if the file doesn't exist?

[patrickelectric]

To me it adds extra complexity at the moment, what is the problem of the current approach ?

(1) we are taking power from the administrator, and (2) we are reinventing the wheel instead of configuring a basic system tool.
What I recommend is that when installing the system, we should overwrite (with a backup) /etc/systemd/journald.conf, print a message about it, and if the administrator wants a different configuration from our default, he can just change the configs there after installing it.

Installation does not fix the problem for current BlueOS systems.

Can't we install it if the file doesn't exist?

By default this file comes from the OS.

[patrickelectric]

I'm working in an alternative solution.