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IPMI

It is possible to control the power or connect a console to your nodes being managed by Warewulf by connecting to the BMC through the use of IPMI. We will discuss how to set this up below.

IPMI Settings#

The common settings for the IPMI interfaces on all nodes can be set on a Profile level. The only field that would need to be assigned to each individual node would be the IP address.

If an individual node has different settings, you can set the IPMI settings for that specific node, overriding the default settings.

Here is a table outlining the fields on a Profile and Node level, along with the parameters that can be used when running wwctl profile set or wwctl node set.

FieldParameterProfileNodeValid ValuesDefault Value
IpmiIpaddr--ipmi✓
IpmiNetmask--ipminetmask✓✓
IpmiPort--ipmiport✓✓623
IpmiGateway--ipmigateway✓✓
IpmiUserName--ipmiuser✓✓
IpmiPassword--ipmipass✓✓
IpmiInterface--ipmiinterface✓✓'lan' or 'lanplus'lan

Reviewing Settings#

There are multiple ways to review the IPMI settings. They can be reviewed from a Profile level, all the way down to a specific Node.

Profile View#

$ sudo wwctl profile list -a
################################################################################
PROFILE NAME FIELD VALUE
default Id default
default Comment This profile is automatically included for each node
default Cluster --
default Container rocky
default Kernel 4.18.0-348.2.1.el8_5.x86_64
default KernelArgs --
default Init --
default Root --
default RuntimeOverlay --
default SystemOverlay --
default Ipxe --
default IpmiNetmask 255.255.255.0
default IpmiPort --
default IpmiGateway 192.168.99.1
default IpmiUserName admin
default IpmiInterface lanplus
default eth0:IPADDR --
default eth0:NETMASK 255.255.240.0
default eth0:GATEWAY 10.1.96.6
default eth0:HWADDR --
default eth0:TYPE --
default eth0:DEFAULT false

Node View#

$ sudo wwctl node list node0001 -a
################################################################################
NODE FIELD PROFILE VALUE
node0001 Id -- node0001
node0001 Comment default This profile is automatically included for each node
node0001 Cluster -- --
node0001 Profiles -- default
node0001 Discoverable -- false
node0001 Container default rocky
node0001 Kernel default 4.18.0-348.2.1.el8_5.x86_64
node0001 KernelArgs -- (quiet crashkernel=no vga=791 rootfstype=rootfs)
node0001 RuntimeOverlay -- (default)
node0001 SystemOverlay -- (default)
node0001 Ipxe -- (default)
node0001 Init -- (/sbin/init)
node0001 Root -- (initramfs)
node0001 IpmiIpaddr -- 192.168.99.10
node0001 IpmiNetmask -- 255.255.255.0
node0001 IpmiPort -- --
node0001 IpmiGateway -- 192.168.99.1
node0001 IpmiUserName default admin
node0001 IpmiInterface default lanplus
node0001 eth0:HWADDR -- 52:54:00:1a:08:60
node0001 eth0:IPADDR -- 192.168.100.152
node0001 eth0:NETMASK default 255.255.255.0
node0001 eth0:GATEWAY default 192.168.100.1
node0001 eth0:TYPE -- --
node0001 eth0:DEFAULT -- false

Review Only IPMI Settings#

The above views show you everything that is set on a Profile or Node level. That is a lot of detail. If you want to view key IPMI connecton details for a node or all nodes, you can do the following.

$ sudo wwctl node list -i
NODE NAME IPMI IPADDR IPMI PORT IPMI USERNAME IPMI PASSWORD IPMI INTERFACE
============================================================================================================
node0001 192.168.99.10 -- admin supersecret lanplus
node0002 192.168.99.11 -- admin supersecret lanplus
node0003 192.168.99.12 -- admin supersecret lanplus

Power Commands#

The following commands can be used to manage the current power state of your nodes through IPMI.

wwctl power [command]

CommandDescription
cycleTurns the power off and then on
offTurns the power off
onTurns the power on
resetIssues a reset
softShutdown gracefully
statusShows current power status

Console#

If your node is setup to use serial over lan (SOL), Warewulf can connect a console to the node.

sudo wwctl node console node0001

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