T6757: Openconnect: fix template for correct config parsing while configuring source address for radius authentication.

[nicolas-fort]

Change Summary

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T6757

Related PR(s)

Component(s) name

openconnect

Proposed changes

How to test

Config:

vyos@ocserv-bug:~$ show config comm | grep radius
set vpn openconnect authentication mode radius
set vpn openconnect authentication radius groupconfig 'PPP'
set vpn openconnect authentication radius server 192.168.77.199
set vpn openconnect authentication radius source-address '10.99.99.99'
set vpn openconnect authentication radius timeout '5'
vyos@ocserv-bug:~$

And config file /run/ocserv/radiusclient.conf:

vyos@ocserv-bug:~$ cat /run/ocserv/radiusclient.conf 
### generated by vpn_openconnect.py ###
nas-identifier VyOS

#### Accounting

#### Authentication
authserver 192.168.77.199:1812
radius_timeout 5
bindaddr 10.99.99.99
...

Smoketest result

test_vpn_openconnect.py --> OK

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[github-actions]

CI integration 👍 passed!

Details

CI logs

• CLI Smoketests 👍 passed
• Config tests 👍 passed
• RAID1 tests 👍 passed
• TPM tests 👍 passed

[dmbaturin]

Also backport to circinus?

[nicolas-fort]

Also backport to circinus?

Yes, and also to Sagitta

[sever-sever]

I'd stop backports to sagitta now