服务部署（Helm）
influxdata/influxdb: Scalable datastore for metrics, events, and real-time analytics
helm repo add influxdata https://helm.influxdata.com/
helm repo update
helm pull influxdata/influxdb2
helm show values ./influxdb2-2.1.1.tgz > influxdb2-2.1.1.helm-values.yaml
vim influxdb2-2.1.1.helm-values.yaml
...
helm upgrade --install --namespace observing-system --create-namespace \
influxdb ./influxdb2-2.1.1.tgz -f influxdb2-2.1.1.helm-values.yaml