Feature Request: Allow for mgmt IP to be static setting

[thomsonjames]

Currently, the Openstack-network.sh has settings for the tmm interfaces and you can set dhcp to false. We'd like to request a feature be added whereby the mgmt interface could have the same options along with the settings for IP address and netmask.
command-wise, the global setting for dhcp_mgmt would need to be set to disabled and then a static IP defined.

Please let me know if you need any more information or if the setting exists and I just can't find it.

[grmarxer]

My customer does not use DHCP on the mgmt interface and would also benefit from this request.

[prabhatkarki]

Lines can be added in the os-network.sh script in order for it to find the mgmt IP addresses and other parameters such as default GW and eth0 MTU from the json user-data file in the config-drive and use those values to configure mgmt where DHCP is not being used on mgmt interface.

The json file portion for network parameteres},
"network": {
"mgmt_routes": {
"mtu": "mgmt_mtu",
"gateway": "mgmt_gateway"
},
"interfaces": {
"mgmt": {
"dhcp": "false",
"address": "mgmt_address",
"netmask": "mgmt_netmask"
}

When VM is instantiated this is how user-data looks with values populated.
Active:Standalone] ~ # mount /dev/hdd /mnt
#cat /mnt/openstack/latest/user_data },
"network": {
"mgmt_routes": {
"mtu": "1400",
"gateway": "11.0.0.1"
},
"interfaces": {
"mgmt": {
"dhcp": "false",
"address": "11.0.0.166",
"netmask": "255.255.255.0"
}

Lines added in os-network.sh . Shows the line numbers
306 function configure_mgmt_if {
307 log "About to assign IP to mgmt"
308 local dhcp_enabled=$(get_user_data_value {bigip}{network}{interfaces}{mgmt}{dhcp})
309 if [[ $dhcp_enabled == false ]]; then
310
311 tmsh modify sys db dhclient.mgmt { value disable }
312
313 local address
314 local netmask
315 local destination
316 local gateway
317
318 address=$(get_user_data_value {bigip}{network}{interfaces}{mgmt}{address})
319 netmask=$(get_user_data_value {bigip}{network}{interfaces}{mgmt}{netmask})
320 mtu=$(get_user_data_value {bigip}{network}{mgmt_routes}{mtu})
321 gateway=$(get_user_data_value {bigip}{network}{mgmt_routes}{gateway})
322
323 if [[ -n $address && -n $netmask ]]; then
324 log "DHCP is disabled for the mgmt interface, setting to $address/$netmask"
325 tmsh create sys management-ip $address/$netmask
326 log "Adding default Gateway on management interface as $gateway"
327 tmsh create /sys management-route default gateway $gateway
328 log "Assigning the MTU for mgmt route at $mtu"
329 tmsh modify sys management-route all mtu $mtu
330 else
331 log "DHCP is disabled and no static address could be located for mgmt, skipping..."
332 fi
333
334 fi
335 }