docs: disable host dns resolver for minikube installation guide

[zhouhaibing089]

When virtualbox provider is used as minikube driver, all the VM instances are going to have 10.0.2.3 as dns server (inspected by looking at /etc/resolv.conf). This seems to have collapsed with cilium cni cidr. This is going to fail the cilium connectivity test because image pulling are going to fail due to dns resolution failure to image registry.

The fix here is to specify --host-dns-resolver=false so that such problem doesn't occur. The new dns resolver will be 192.168.0.1 (all with default configurations).

I also thought about customizing cilium cni cidr, but that may involve more changes to the doc. It might not be worthwhile in this quick installation guide.

docs: Disable host DNS resolver with Virtualbox for Minikube quick installation guide

[maintainer-s-little-helper]

Commit ca33df8889a66f2bab2279ec76b992a2fc122d68 does not contain "Signed-off-by".

Please follow instructions provided in https://docs.cilium.io/en/stable/contributing/development/contributing_guide/#developer-s-certificate-of-origin

[zhouhaibing089]

The following change also works:

$ cilium install --helm-set ipam.operator.clusterPoolIPv4PodCIDR=172.16.0.0/12

[qmonnet]

Looks good to me, thanks. I have some minor nits on capitalisation (see below), but it's not blocking.

[qmonnet]

Can you please sign off your commit, as explained by the bot?

[maintainer-s-little-helper]

Commit ca33df8889a66f2bab2279ec76b992a2fc122d68 does not contain "Signed-off-by".

Please follow instructions provided in https://docs.cilium.io/en/stable/contributing/development/contributing_guide/#developer-s-certificate-of-origin

[qmonnet]

Thanks for the update!

I see your second commit is signed off, but not the first. Can you please do the following:

• Squash your two commits together
• Make sure the resulting commit contains your Signed-off-by tag
• Either drop the Co-authored-by tag (what I'd recommend), or at least use my work email (quentin@isovalent.com) instead of personal one that GitHub picked automatically

I can help if necessary.

[qmonnet]

it appears that github bot requested a bunch of reviewers as a result

No worries, it's not the first time this kind of things happens, nor will it be the last :). Thanks for fixing the PR and updating your commit!

Documentation change only, and related tests passed, so I'm marking as ready-to-merge.