MTV-1596 | Add new NetworkNameTemplate field to plan CR

[yaacov]

Ref:
https://issues.redhat.com/browse/MTV-1596

RFE:
Requesting the ability for choosing a custom name for the network and disks during migration for VM's. Currently migrations end up with 'net-0' or 'vol-1' and cannot be modified. A newly created vm typically allows for you to name these.

Fix:
Add an optional network template:

NetworkNameTemplate is a template for generating network interface names in the target virtual machine.
It follows Go template syntax and has access to the following variables:
   - .NetworkName: If target network is multus, name of the Multus network attachment definition, empty otherwise.
   - .NetworkNamespace: If target network is multus, namespace where the network attachment definition is located.  
   - .NetworkType: type of the network ("Multus" or "Pod")
   - .NetworkIndex: sequential index of the network interface (0-based)
The template can be used to customize network interface names based on target network configuration.
 Note:
   - This template can be overridden at the individual VM level
   - If not specified on VM level and on Plan leverl, default naming conventions will be used
 Examples:
   "net-{{.NetworkIndex}}"
   "{{if eq .NetworkType "pod"}}pod{{else}}multus-{{.NetworkIndex}}{{end}}"

In the plan YAML:

spec:
   ...
   networkNameTemplate:   "net-{{.NetworkIndex}}"

   vms:
    - name: some-vm
      networkNameTemplate:   "{{if eq .NetworkType "pod"}}pod{{else}}multus-{{.NetworkIndex}}{{end}}"

Screenshots:

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Codecov Report

Attention: Patch coverage is 0% with 121 lines in your changes missing coverage. Please review.

Project coverage is 15.33%. Comparing base (f1fe5d0) to head (c23efaf).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/controller/plan/validation.go	0.00%	68 Missing ⚠️
pkg/controller/plan/adapter/vsphere/builder.go	0.00%	53 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1327      +/-   ##
==========================================
- Coverage   15.45%   15.33%   -0.13%     
==========================================
  Files         112      112              
  Lines       23377    23620     +243     
==========================================
+ Hits         3613     3621       +8     
- Misses      19479    19711     +232     
- Partials      285      288       +3     

Flag	Coverage Δ
unittests	15.33% <0.00%> (-0.13%)	⬇️

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[mnecas]

Maybe adding a log that the template execution failed?

[yaacov]

re based and added a log line

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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[mnecas]

lgtm