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Support #6885

VNC crontabs for startup and tickets

Added by Arthur Kreymer about 5 years ago. Updated about 5 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
08/28/2014
Due date:
% Done:

90%

Estimated time:
3.00 h
Spent time:
2.90 h
component:
base
Duration:

Description

Will add uniform crontabs on Control Room VNC account
to start VNC sessions at boot
and renew Kerberos tickets every 2 hours.

This is already being done in some sessions, but not uniformly.

History

#1 Updated by Arthur Kreymer about 5 years ago

  • Estimated time set to 3.00 h

Summary of crontabs on main VM accounts

FD novadaq-far-master-02
novacr01
@reboot sleep 60; ~/bin/start-vncserver.sh

novacr02
@reboot sleep 60; ~/bin/start-vncserver.sh
kinit 02

novacr03
@reboot sleep 60; ~/bin/start-vncserver.sh

ND novadaq-near-master
novacr01
none

novacr02
none

novacr03
none

NDOS novadaq-ctrl-master
novacr01
@reboot ssh novacr01@novadaq-ctrl-master /home/novacr01/bin/start-vncserver.sh

novacr02
kinint 55

novacr03
none

#2 Updated by Arthur Kreymer about 5 years ago

@reboot sleep 60; /usr/krb5/bin/kinit -5 -F -A -k -t $HOME/.krb5/nova-principle.keytab 2>/dev/null
55 * * * * /usr/krb5/bin/kinit -5 -F -A -k -t $HOME/.krb5/nova-principle.keytab 2>/dev/null

Adjust the time to avoid collisions

FD   1 01
FD   2 02
FD   3 03

ND   1 11
ND   2 12
ND   3 13

NDOS 1 21
NDOS 2 22
NDOS 3 23

#3 Updated by Arthur Kreymer about 5 years ago

Plan to put files like VNCND1.crontab in bin

CVS repository for bin is like
Online/pkgs/NovaControlRoom/bin/
FarDet/nova-daq-01 02 03
NearDet/nova-daq-01 02 03
NDOS/...

#4 Updated by Arthur Kreymer about 5 years ago

  • % Done changed from 0 to 90

Created crontabs in bin Aug 29

11:50
FD-novacr01.crontab
FD-novacr02.crontab
FD-novacr03.crontab

12:05
ND-novacr01.crontab
ND-novacr02.crontab
ND-novacr03.crontab

12:12
NDOS-novacr01.crontab
NDOS-novacr02.crontab
NDOS-novacr03.crontab

#5 Updated by Arthur Kreymer about 5 years ago

The crontabs are active on all systems,
with reference DET-novacr0*.crontab files in ${HOME}/bin.

I do not seem to have write access to CVS,
so these files are not added or committed to CvS as we would like.

#6 Updated by Arthur Kreymer about 5 years ago

All kerberos tickets are updating as scheduled.

The one anomaly is the novacr01@nova-near-master virtual desktop,
which is not using the expected ticket file
/tmp/krb5cc_510, but instead
/tmp/krb5cc_510_JtxCPb7595

Perhaps the desktop was started from an ssh session,
and inherited a non-standard ticket name.
All other sessions have standard ticket names.

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