feat(sidecar): allow more than one container per pod

Author: mipieta

libchart/templates/_container.tpl

@@ -40,7 +40,9 @@
     timeoutSeconds: {{ .liveness.timeout | default 15 }}
     periodSeconds: {{ .liveness.periodSeconds | default 15 }}
   {{- end }}
-  {{- if and (.readiness) (.readiness.enabled) }}
+  {{- $readiness := default dict .readiness }}
+  {{- $readinessEnabled := default false $readiness.enabled }}
+  {{- if and $readiness $readinessEnabled }}
   readinessProbe:
     httpGet:
       path: {{ .readiness.path | default "/" }}