zuul
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zuul-jobs
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zuul-jobs/roles/enable-netconsole
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Ian Wienand 7f41a50ac0 Add a netconsole role 
This role sets up a host to report via netconsole.  It is a port of
old devstack-gate functionality from circa
Iebc8e1812d1441aba7c18d3e7c982b620b5198a0.

Change-Id: I37c26fdbcdf61a55fae4cbee3eb61a4bc45ca628
 		2019-09-09 18:14:00 +10:00
..
tasks Add a netconsole role 2019-09-09 18:14:00 +10:00
README.rst Add a netconsole role 2019-09-09 18:14:00 +10:00

README.rst

Enable netconsole for host

This enables the netconsole on a host to send kernel/dmesg logs to a remote host. This can be very useful if a node is experiencing a kernel oops or another form of unexpected disconnect where you can not retrieve information via standard logging methods.

The netconsole_remote_ip and netconsole_remote_port variables must be set. This host can capture the logs with a command like:

$ nc -v -u -l -p 6666 | tee console-output.log

or:

$ socat udp-recv:6666 - | tee console-output.log

One further trick is to send interesting data to /dev/kmsg, this should make it across the netconsole even if the main interface has been disabled, etc. e.g.:

$ ip addr | sudo tee /dev/kmsg

Role Variables

The IP address of the remote host to send to.

The port listening on the remote host.