Don't depend on eth0 for displaying network information

[agrare]

When displaying the current network information iterate over all network interfaces not just eth0

Example output:

Welcome to the ManageIQ Virtual Appliance.

To modify the configuration, use a web browser to access the management page.

Hostname:                workstation
enp193s0f0np0 IPv4 Address: 10.2.4.10/24
enp193s0f0np0 IPv4 Gateway: 10.2.4.1
enp193s0f0np0 IPv6 Address: 
enp193s0f0np0 IPv6 Gateway: 
enp193s0f0np0 MAC Address: b4:96:91:b8:a2:96
lxcbr0 IPv4 Address:     10.0.3.1/24
lxcbr0 IPv4 Gateway:     10.2.4.1
lxcbr0 IPv6 Address:     fc11:4514:1919:810::1/64
lxcbr0 IPv6 Gateway:     
lxcbr0 MAC Address:      00:16:3e:00:00:00
crc IPv4 Address:        192.168.130.1/24
crc IPv4 Gateway:        10.2.4.1
crc IPv6 Address:        
crc IPv6 Gateway:        
crc MAC Address:         52:54:00:fd:be:d0
Primary DNS:             127.0.0.1
Secondary DNS:           
Search Order:            rb.nj.grare.com
Timezone:                America/New_York
ManageIQ Server:         not configured
ManageIQ Database:       not configured
Database/Region:         not configured
Messaging:               configured
Local Messaging Broker:  configured
ManageIQ Version: 

NOTE with longer interface names the spacing is broken

Related: ManageIQ/manageiq-appliance-build#573

[agrare]

I thought this would help put some of the changes to LinuxAdmin in context of how they might be used

[agrare]

NOTE this will only work reliably with a single non-loopback interface, but this is just the default presented to the user and they can enter any address that they want plus our appliances only ship by default with a single NIC.

In the future I think a #default? attribute or something like that which checks which dev is used for the default route would let us pick the interface most likely to be the "right one" ™️

[bdunne]

I think that's fine. There was no guarantee before that eth0 was the default route.

[miq-bot]

Checked commits agrare/manageiq-appliance_console@bfc3ed2~...8dc2628 with ruby 3.1.5, rubocop 1.56.3, haml-lint 0.51.0, and yamllint
5 files checked, 0 offenses detected
Everything looks fine. 🍰