[bitnami/consul] Fix chart not being upgradable

Signed-off-by: Javier J. Salmeron Garcia <jsalmeron@bitnami.com>

bitnami/consul/Chart.yaml

@@ -2,7 +2,7 @@ name: consul
 home: https://www.consul.io/
 sources:
 - https://github.com/bitnami/consul
-version: 1.1.0
+version: 2.0.0
 appVersion: 1.0.6
 description: Highly available and distributed service discovery and key-value store
   designed with support for the modern data center to make distributed systems and

bitnami/consul/README.md

@@ -235,3 +235,14 @@ helm install bitnami/consul --set tlsEncryptionSecretName=consul-tls-encryption
 ## Metrics
 
 The chart can optionally start a metrics exporter endpoint on port `9107` for [prometheus](https://prometheus.io). The data exposed by the endpoint is intended to be consumed by a prometheus chart deployed within the cluster and as such the endpoint is not exposed outside the cluster.
+
+## Upgrading
+
+### To 2.0.0
+
+Backwards compatibility is not guaranteed unless you modify the labels used on the chart's deployments.
+Use the workaround below to upgrade from versions previous to 2.0.0. The following example assumes that the release name is consul:
+
+```console
+$ kubectl delete statefulset consul --cascade=false
+```

bitnami/consul/templates/statefulset.yaml

@@ -8,6 +8,10 @@ metadata:
     release: {{ .Release.Name | quote }}
     heritage: {{ .Release.Service | quote }}
 spec:
+  selector:
+    matchLabels:
+      app: {{ template "consul.name" . }}
+      release: "{{ .Release.Name }}"
   serviceName: "{{ template "consul.fullname" . }}"
   replicas: {{ default 3 .Values.replicas }}
   updateStrategy: