fix(helm): chart should respect -n <namespace> flag

[zbindenren]

Namespace should be configured via -n helm flag.

I kept the namespace value in values.yaml for backward compatibility reasons. But it would probably be better to set as

namespace: ""

Then, per default, the Releases.Namespace value is taken and you still can overwrite it in values.yaml.

Currently, if someone wants to install the helm chart, it gets installed in kube-system namespace. Even if you specify -n other-namespace . You have to actively set namespace: "" in values.yaml to make it installable in a different namespace via helm flags.

@djboris9 let me know what you think.

Edit:

Best practices is discussed here. I get the feeling that namespace: {{ .Releases.Namespace }} would be best.

[coveralls]

Pull Request Test Coverage Report for Build 3320802895

• 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 80.603%

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Totals
Change from base Build 3318277956:	0.0%
Covered Lines:	428
Relevant Lines:	531

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💛 - Coveralls

[djboris9]

Nice solution @zbindenren 🍻