Smokeping usage and install problems:
The problems boil down to;
1) Smokeping itself [or more clearly, the user smokeping is running as - and
remember it may run as root at the CLI, but as something different when started
by the system] can't write to the RRDs or the directory where the RRD's are to
be stored.
2) The web-server can't *read* the RRD's because it doesn't have rights.
[far less common, but the same base issue]
3) In master/slave setups - the slaves [via the web-server] can't write to the
RRD's - because the web-server doesn't have rights to the RRDs.
These errors are so common, ti would be nice to have a small script that would
run a quick audit/check on all permissions!
I have an install that ran fine for years, and then on a system & Tomcat
upgrade now has permissions problems - .cgi access permissions denied.
I don't know if it would even be possible to do, given all the variances
between distros etc. [Some using systemd some not, etc.]
The script would have to determine what user the webserver [there might be more
than one installed] was running as, look in the smokeping config, see what
RRD's exist in the config, and then go see if it could access the files as that
user. [And what if the files hadn't been created yet?]
It would be perhaps easier to do this for the smokeping user - but even then it
would have to look at systemd data to see who smokeping was running as and do
those same checks.
I wouldn't have the slightest idea where to start to write such a script.
Seems like a pretty involved "small" script, IMO. :)
It *would* be cool though.
[I'd like a pony too, as long as we're wishing!]
One would hope that the kinds of people who would run smokeping [namely
sysadmins] would have enough skill to find their way through this problem.
[Though, obviously that's not so much the case - so perhaps I'm tilting at
windmills.]
-Greg
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