Allowing for multiple -x options to exclude tmpfs paths that are not excluded by -X in Director

Icinga Web 2
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1
  • Icinga Web 2 version: 2.9.5
  • Used modules and their versions (System - About)
|director|1.8.1|
|doc|2.9.5|
|fileshipper|1.2.0|
|incubator|0.6.0|
|monitoring|2.9.5|
  • Web browser used: Chromium on Fedora
  • Icinga 2 version used (icinga2 --version): 2.13.2-1
  • PHP version used (php --version): 7.4.26
  • Server operating system and version: Fedora 34

Is there a way to include multiple -x options? I’m seeing several tmpfs directories that are not automatically being excluded. Examples include one from X2Go, /tmp/.x2go-moniot/spool/C-ouruser-50-1637675492_stDMATE_dp32 and /run/media/ouruser/SanDisk1. I had another thread which mentioned this and I was able to get a -x option added as a Data Field.

excludepartitions
customproperty
minux

But is there a way to allow multiple values for -x? Wouldn’t this also be considered a bug as the default -X options to exclude tmpfs are not being caught?

2

Hi, yes it’s possible. The field type must be an array. The director is doing the rest while rendering the config.

But if I understand your screenshoot correctly, you’re still doing that?!?

3

I had it as a string, I’ll reset it as an array. I take it the plus sign allows adding an entry.

What I can’t figure out is how to exclude a path that changes, i.e.,. with X2Go the /tmp path changes to something like /tmp/.x2go-ouruser/spool/C-ouruser-50-1637702868_stDMATE_dp32

I tried a wild card * after /spool to no avail.

4

From what the docs of check_disk says (Nagios Plugins / Monitoring Plugins - depending what you are using) it must be a device:

 -p, --path=PATH, --partition=PARTITION
    Mount point or block device as emitted by the mount(8) command (may be repeated)
 -x, --exclude_device=PATH <STRING>
    Ignore device (only works if -p unspecified)

Maybe this parameter are helping you:

     -R, --eregi-path=PATH, --eregi-partition=PARTITION
        Case insensitive regular expression for path/partition (may be repeated)
     -r, --ereg-path=PATH, --ereg-partition=PARTITION
        Regular expression for path or partition (may be repeated)
5

Thanks I tried this:

vars["-R"] = " /tmp/.x2go-*/spool/C-*-50-*_stD*_dp32"
    vars["-x"] = [ " /tmp/.x2go-*/spool/C-*-50-*_stD*_dp32" ]
    vars["_override_servicevars"] += {
        "Service Template for Server Monitoring Disk Usage" = {
            "-R" = "/tmp/.x2go-*/spool/C-*-50-*_stD*_dp32"
            "-x" = [ "/run/user/1003/doc" ]
            disk_partition_excluded = "/run/user/1003/doc"
            disk_partitions_excluded = "/run/user/0/doc"
        }

trill
trill887×88 8.4 KB

6

With the new params: Could you show us the complete command what the director is rendering new. You’ll find it in the “inspect” function in the service.

7

Here it is and I am not seeing the -R with inspect
'/usr/lib64/nagios/plugins/check_disk' '-c' '8%' '-w' '12%' '-X' 'fuse' '-X' 'none' '-X' 'tmpfs' '-X' 'sysfs' '-X' 'proc' '-X' 'configfs' '-X' 'devtmpfs' '-X' 'devfs' '-X' 'nfs' '-X' 'nsfs' '-X' 'debugfs' '-X' 'tracefs' '-X' 'overlay' '-X' 'snap' '-X' 'snapd' '-X' 'squashfs' '-X' 'fuse.gvfsd-fuse' '-X' 'fuse.gvfsd-fuse-daemon' '-X' 'fdescfs' '-X' 'cgroup' '-X' 'tmp' '-m' '-x' '/run/user/xxxx/doc' '-x' '/run/user/yyyy/doc'

But they are custom vars:

minusr
customvaras

In Director → Services → Template → Preview:

template Service "Service Template for Server Monitoring Disk Usage" {
    check_command = "disk"
    enable_notifications = true
    command_endpoint = host_name
    vars["-R"] = "/tmp/.x2go-*/spool/C-*-50-*_stD*_dp32"
    vars["-x"] = [ "-x /run/user/xxxx/doc" ]
    vars.disk_exclude_type = [
        "fuse",
        "none",
        "tmpfs",
        "sysfs",
        "proc",
        "configfs",
        "devtmpfs",
        "devfs",
        "nfs",
        "nsfs",
        "debugfs",
        "tracefs",
        "overlay",
        "snap",
        "snapd",
        "squashfs",
        "fuse.gvfsd-fuse",
        "fuse.gvfsd-fuse-daemon",
        "fdescfs",
        "cgroup",
        "tmp"
    ]
    vars.disk_partitions_excluded = "/run/user/xxxx/doc"
}
8

Well I’ll be darned. I saw in another thread about the df -aT command:

gvfsd-fuse                                                          fuse.gvfsd-fuse          0          0          0    - /run/user/xxxx/gvfs
portal                                                              fuse.portal              0          0          0    - /run/user/xxxx/doc
myuser@127.0.0.1:/cygdrive/C/Users/myuser/X2GO~1/S-5B9B~1/spool     fuse.sshfs               0          0          0    - /tmp/.x2go-myuser/spool/C-myuser-51-1638210896_stDXFCE_dp32

So I added fuse.sshfs and fuse.portal to vars.disk_exclude_type (Services → Service Templates, which is the -X option) and all the errors went away. Hope this helps someone down the line but perhaps this should be documented somewhere?

9

I’d guess it’s left to the user to choose to exclude a given file system type based on their own environment and needs. You were alerted to it, addressed it as you saw fit and it should never be an issue again :slight_smile: I’d guess sshfs is less used than nfs.

10

If you think the parameter discription is not really clear, you (as I copy from the plugin docs -x is for a device) you could create an issue for the nagios /monitoring plugins :wink: