Add helm chart.

[mneverov]

Addresses #98

To test run helm install kube-network-policies -n kube-system charts/kube-network-policies.
admin-network-policy and baseline-admin-network-policy are enabled by default (values file baselineAdminNetworkPolicy: true).

[aojea]

awesome, do you mind add a sentence in

kube-network-policies/README.md

Line 7 in 4320aa9

## Install

to mention this new install method?

[aojea]

Suggested change

	{{- if .Values.baselineAdminNetworkPolicy }}
	{{- if .Values.adminNetworkPolicy }}

I learned this recently, so there is Admin Network Policy, that has two CRD adminNetworkPolicy and baseAdminNetworkPolicy , so, maybe better to name Values.adminNetworkPolicy instead of Values.baselineAdminNetworkPolicy ??

[mneverov]

You're right.
JFYI, we specify both flags in install-anp. I could not come up with a generic parameter name that describes both AdminNetworkPolicy and BaselineAdminNetworkPolicy.
Renamed as suggested.

[aojea]

@mneverov naive question, the admin network policies require to install some CRDs, does helm practices recommend to embed those CRDs?

kube-network-policies/.github/workflows/npa.yml

Lines 110 to 111 in 4320aa9

	/usr/local/bin/kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/network-policy-api/main/config/crd/experimental/policy.networking.k8s.io_adminnetworkpolicies.yaml
	/usr/local/bin/kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/network-policy-api/main/config/crd/experimental/policy.networking.k8s.io_baselineadminnetworkpolicies.yaml

[mneverov]

@mneverov naive question, the admin network policies require to install some CRDs, does helm practices recommend to embed those CRDs?

For a user convenience CRDs are often embedded in the chart especially when they are defined in the same repo. CRDs can also be installed as a dependency, but in this case they should be also provided as a helm chart. I don't see helm charts for CRDs in network-policy-api, so users still need to install them manually.

[aojea]

This is awesome, thank you very much

/LGTM
/approve

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