Inject address for peers at storage controller start-up (#101)

The storage controller needs to know the address at which it is
reachable by it's peers within the deployment. It will use this
to mark itself as the leader in the database.

The CLI arg was added in neondatabase/neon#8588
and that's already been deployed everywhere.

Note that we are not enabling graceful leadership tranfers with this
change. The only change in storcon behaviour is that each instance
will write its address into the database at start-up. If that fails,
the process exits.

charts/neon-storage-controller/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: neon-storage-controller
 description: Neon storage controller
 type: application
-version: 1.1.1
+version: 1.1.2
 appVersion: "0.1.0"
 kubeVersion: "^1.18.x-x"
 home: https://neon.tech

charts/neon-storage-controller/README.md

@@ -1,6 +1,6 @@
 # neon-storage-controller
 
-![Version: 1.1.1](https://img.shields.io/badge/Version-1.1.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) [![Lint and Test Charts](https://github.com/neondatabase/helm-charts/actions/workflows/lint-test.yaml/badge.svg)](https://github.com/neondatabase/helm-charts/actions/workflows/lint-test.yaml)
+![Version: 1.1.2](https://img.shields.io/badge/Version-1.1.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) [![Lint and Test Charts](https://github.com/neondatabase/helm-charts/actions/workflows/lint-test.yaml/badge.svg)](https://github.com/neondatabase/helm-charts/actions/workflows/lint-test.yaml)
 
 Neon storage controller
 

charts/neon-storage-controller/templates/deployment.yaml

@@ -59,13 +59,19 @@ spec:
             - --chaos-interval
             - {{ .Values.settings.chaosInterval | quote }}
           {{- end }}
+            - --address-for-peers
+            - http://$(POD_IP):{{ .Values.service.port }}/
           env:
             - name: LD_LIBRARY_PATH
               value: "/usr/local/v16/lib"
             - name: RUST_LOG
               value: "INFO"
             - name: RUST_BACKTRACE
               value: "1"
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
           {{- if .Values.settings }}
             {{- with .Values.settings.sentryUrl }}
             - name: SENTRY_DSN