test: add agent with auth file

[npitsillos]

Proposed Changes

Adds a test to address changes in #10074

Types of Changes

Test

Verification

Testing

Adds another node to tailscale test that authenticates using a vpn-auth-file.

Linked Issues

10064

User-Facing Change

Fix bug when using `vpn-auth-file` in the agent

Further Comments

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 41.71%. Comparing base (aadec85) to head (59c6853).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #10119 +/- ## ========================================== - Coverage 48.01% 41.71% -6.30% ========================================== Files 173 173 Lines 14658 14658 ========================================== - Hits 7038 6115 -923 - Misses 6288 7375 +1087 + Partials 1332 1168 -164 ``` | [Flag](https://app.codecov.io/gh/k3s-io/k3s/pull/10119/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=k3s-io) | Coverage Δ | | |---|---|---| | [e2etests](https://app.codecov.io/gh/k3s-io/k3s/pull/10119/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=k3s-io) | `36.30% <ø> (-10.30%)` | :arrow_down: | | [inttests](https://app.codecov.io/gh/k3s-io/k3s/pull/10119/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=k3s-io) | `37.04% <ø> (+0.07%)` | :arrow_up: | | [unittests](https://app.codecov.io/gh/k3s-io/k3s/pull/10119/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=k3s-io) | `11.38% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=k3s-io#carryforward-flags-in-the-pull-request-comment) to find out more.

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[manuelbuil]

Thanks for this contribution! Please also update to 2 the integer here https://github.com/k3s-io/k3s/blob/master/tests/e2e/tailscale/tailscale_test.go#L17

[npitsillos]

I can confirm that the file is correctly copied to the guest machine, however the tailscale key is not picked up from the env

[manuelbuil]

I can confirm that the file is correctly copied to the guest machine, however the tailscale key is not picked up from the env

did you run the test passing the tailscale key?

E2E_TAILSCALE_KEY=xxxxxx go test -v ./test/e2e/tailscale

[npitsillos]

no I just exported it as an environment variable

[manuelbuil]

Are you testing this? Is it working for you?

[npitsillos]

I just managed to run the tests I had issues with running vagrant without sudo. The tests fail but I should rebase my branch with the latest changes that have your code for it right?

[manuelbuil]

I just managed to run the tests I had issues with running vagrant without sudo. The tests fail but I should rebase my branch with the latest changes that have your code for it right?

What's the error you get?

[manuelbuil]

Could you please rebase? That will include my fix :)

[npitsillos]

Just rebased from master and pushed the changes

[manuelbuil]

I have just tested and works :). Thanks again @npitsillos

[npitsillos]

I'm glad I could contribute here! I am looking forward to contributing on things in the future as well!