Enable Openshift for connect injector

CHANGELOG.md

@@ -2,6 +2,8 @@
 IMPROVEMENTS:
 * Connect: Allow overwriting Kubernetes HTTP probes when running with transparent proxy enabled.
   [[GH-953](https://github.com/hashicorp/consul-helm/pull/953)]
+* Connect: Enable OpenShift for the connect-injector so that we can support running with transparent
+  proxy enabled. [[GH-972](https://github.com/hashicorp/consul-helm/pull/972)]
 
 BUG FIXES:
 * OpenShift: support `server.exposeGossipAndRPCPorts`. [[GH-932](https://github.com/hashicorp/consul-helm/issues/932)]

templates/connect-inject-deployment.yaml

@@ -95,6 +95,9 @@ spec:
                 {{- else }}
                 -default-enable-transparent-proxy=false \
                 {{- end }}
+                {{- if .Values.global.openshift.enabled }}
+                -enable-openshift \
+                {{- end }}
                 {{- if .Values.connectInject.transparentProxy.defaultOverwriteProbes }}
                 -transparent-proxy-default-overwrite-probes=true \
                 {{- else }}

test/unit/connect-inject-deployment.bats

@@ -1419,5 +1419,31 @@ EOF
       . | tee /dev/stderr |
       yq '.spec.template.spec.containers[0].command | any(contains("-transparent-proxy-default-overwrite-probes=false"))' | tee /dev/stderr)
 
+  [ "${actual}" = "true" ]
+}
+
+#--------------------------------------------------------------------
+# openshift
+
+@test "connectInject/Deployment: openshift is is not set by default" {
+  cd `chart_dir`
+  local actual=$(helm template \
+      -s templates/connect-inject-deployment.yaml  \
+      --set 'connectInject.enabled=true' \
+      . | tee /dev/stderr |
+      yq '.spec.template.spec.containers[0].command | any(contains("-enable-openshift"))' | tee /dev/stderr)
+
+  [ "${actual}" = "false" ]
+}
+
+@test "connectInject/Deployment: -enable-openshift is set when global.openshift.enabled is true" {
+  cd `chart_dir`
+  local actual=$(helm template \
+      -s templates/connect-inject-deployment.yaml  \
+      --set 'connectInject.enabled=true' \
+      --set 'global.openshift.enabled=true' \
+      . | tee /dev/stderr |
+      yq '.spec.template.spec.containers[0].command | any(contains("-enable-openshift"))' | tee /dev/stderr)
+
   [ "${actual}" = "true" ]
 }