Deploy the TLS "hello" example with helm.

This re-uses the example chart for "hello without TLS". Passes
verify.sh.

examples/tls/hello/cafe.crt

+-----BEGIN CERTIFICATE-----
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+N2w59p6t5xE7Ktb0cmhZg83ISPTBlGqVJxF0clLob5nWyeutXNkP/KOi38PI
+-----END CERTIFICATE-----

examples/tls/hello/cafe.key

+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAts0HCq6fq9gv0uEa3iOruZ3GnctdCoeGjrQQ4Fh2cQoMm/i3
+pkDUt6x2pLTQhxlN3oH3WEo1a24r/3S8Xfy6Xf0Pti+dDiCqAwMd6veu56RItVMO
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+zdkoq6BiZnznsVgoHyP7TQlUX94ahVT01yZ0njPk2aYVipPWUoHQMQ==
+-----END RSA PRIVATE KEY-----

examples/tls/hello/deploy_helm.sh

+#! /bin/bash -ex
+
+MYDIR=$(dirname ${BASH_SOURCE[0]})
+
+helm install viking-ingress ${MYDIR}/../../hello/charts --values values.yaml

examples/tls/hello/undeploy_helm.sh

+#! /bin/bash -ex
+
+MYDIR=$(dirname ${BASH_SOURCE[0]})
+source ${MYDIR}/../../../test/utils.sh
+
+helm uninstall viking-ingress
+
+echo "Waiting until varnish-ingress Pods are not configured for Ingress"
+wait_until_not_configured app=varnish-ingress

examples/tls/hello/values.yaml

+apps:
+  coffee:
+    image: nginxdemos/hello:plain-text
+    replicas: 2
+  tea:
+    image: nginxdemos/hello:plain-text
+    replicas: 3
+
+ingress:
+  name: cafe-ingress
+  rules:
+  - host: cafe.example.com
+    paths:
+    - path: /tea
+      app: tea
+    - path: /coffee
+      app: coffee
+    tls:
+      secretName: cafe-tls-secret
+      crt: |
+        {{- readfile "cafe.crt" | nindent 8 }}
+      key: |
+        {{- readfile "cafe.key" | nindent 8 }}