DNS issue when using tailscale

[asaif]

Issue
Github actions used tailscale with option ( DNS override activated on Admin) Failed to resolve any public DNS
like google.com for example.

Example from a Github action
Auth successfully on Tailscale

Then cannot resolve

Expected behaviour
After connecting to tailscale Github Action runner should be able to resolve DNS without issue.

[DentonGentry]

The next step is "Set up Helm", is the runner self-hosted in Kubernetes?

[asaif]

No, it's on the normal Github runners we do install helm packages on the runner
then use them to push our code to a private Kubernetes

[jkimbo]

I came across this issue today and setting the tailscale version to the latest one fixed it for me (for some reason it was defaulting to version 1.14.0):

  - name: Tailscale
    uses: tailscale/github-action@v1
    with:
      authkey: ${{ secrets.TAILSCALE_AUTHKEY }}
      version: '1.38.3'