Add support for dnsPolicy to the Helm chart

[jkroepke]

Running the csr-approver with dnsPolicy: Default should works fine and removes the dependency to CoreDNS. It's a nice catch on initial cluster bootstrapping.

I also bump the helm chart version in prepare for a next release. Please note, that the v prefix of a helm chart version is not officially supported, since it requires to be a SemVer value.

[ghouscht]

Thank you for the PR, looks good to me. I'm just waiting for the CI to pass and will merge the PR then.

Thanks for the hint regarding the v prefix on the Helm chart version, I was not aware of that! I will create a follow up issue regarding that.

ps. Can you please tell me what editor plugin you use for Helm charts? 😃

[coveralls]

Pull Request Test Coverage Report for Build 2102170866

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 76.699%

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Totals
Change from base Build 2076517303:	0.0%
Covered Lines:	158
Relevant Lines:	206

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💛 - Coveralls

[jkroepke]

Hi @ghouscht

I'm using IDEA IntelliJ even for operational task. The builtin Kubernetes Plugin natively support Helm Charts and if the go Templates Plugin in installed, it also supports field validation inside helm templates.

https://www.jetbrains.com/help/idea/kubernetes.html#helm

No 3rd party plugins is used here.