Add extraContainers option for running custom sidecar workloads in the InfluxDB pod (#144)

charts/influxdb/Chart.yaml

 apiVersion: v1
 name: influxdb
-version: 4.8.6
+version: 4.8.7
 appVersion: 1.8.0
 description: Scalable datastore for metrics, events, and real-time analytics.
 keywords:

charts/influxdb/README.md

@@ -83,6 +83,7 @@ The following table lists configurable parameters, their descriptions, and their
 | env | environment variables for influxdb container | {} |
 | volumes | `volumes` stanza(s) to be used in the main container | nil |
 | mountPoints | `volumeMount` stanza(s) to be used in the main container | nil |
+| extraContainers | Additional containers to be added to the pod | {} |
 | config.reporting_disabled | [Details](https://docs.influxdata.com/influxdb/v1.7/administration/config/#reporting-disabled-false) | false |
 | config.rpc | RPC address for backup and storage | {} |
 | config.meta | [Details](https://docs.influxdata.com/influxdb/v1.7/administration/config/#meta) | {} |

charts/influxdb/templates/statefulset.yaml

@@ -130,6 +130,9 @@ spec:
         {{- if .Values.mountPoints }}
 {{ toYaml .Values.mountPoints | indent 8 }}
         {{- end }}
+      {{- if .Values.extraContainers }}
+{{ toYaml .Values.extraContainers | indent 6}}
+      {{- end }}
       volumes:
       - name: config
         configMap:

charts/influxdb/values.yaml

@@ -185,6 +185,11 @@ ingress:
 #     mountPath: /etc/ssl/certs/selfsigned/
 #     readOnly: true
 
+## Additional containers to be added to the pod.
+extraContainers: {}
+#  - name: my-sidecar
+#    image: nginx:latest
+
 ## Use an alternate scheduler, e.g. "stork".
 ## ref: https://kubernetes.io/docs/tasks/administer-cluster/configure-multiple-schedulers/
 ##