Add GitHub Actions to publish helm chart (#257)

* Add chart workflows (#1)

* Add chart workflows

* Fix publishing step in CI

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Update CI on push-to-master (#3)

* Put helm installation step in the correct CI job

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Put helm installation step in the correct CI job (#4)

* Update on-push-master-publish-chart.yml

* Remove references to certmanager dependency

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Add ability to customize kube-rbac-proxy image

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Only install cert-manager if we're going to spin up KinD

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

charts/.ci/scripts/local-kube-score.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+
+for chart in `ls charts`;
+do
+helm template --values charts/$chart/ci/ci-values.yaml charts/$chart | kube-score score - \
+    --ignore-test pod-networkpolicy \
+    --ignore-test deployment-has-poddisruptionbudget \
+    --ignore-test deployment-has-host-podantiaffinity \
+    --ignore-test pod-probes \
+    --ignore-test container-image-tag \
+    --enable-optional-test container-security-context-privileged \
+    --enable-optional-test container-security-context-readonlyrootfilesystem \
+    --ignore-test container-security-context
+done