Merge pull request #5050 from GerryWilko/master

Adding nodeSelector option to Helm Chart
2021-03-22 18:13:33 +01:00
parent a01daedcd3 9f808f97c8
commit 8012eafa28
5 changed files with 33 additions and 0 deletions
@@ -236,6 +236,27 @@ Backend failed to start up Error: unable to verify the first certificate

 This error happens in the backend when it tries to connect to the configured PostgreSQL database and the specified CA is not correct. The solution is to make sure that the contents of the `configMap` that holds the certificate match the CA for the PostgreSQL instance. A workaround is to set `appConfig.backend.database.connection.ssl.rejectUnauthorized` to `false` in the chart's values.

+#### Multi-Platform Kubernetes Services
+
+If you are running a multi-platform Kubernetes service with Windows and Linux nodes then you will need to apply a `nodeSelector` to the Helm chart to ensure that pods are scheduled onto the correct platform nodes.
+
+Add the following to your Helm values file:
+
+```yaml
+global:
+  nodeSelector:
+    kubernetes.io/os: linux
+
+# If using Postgres Chart also add
+postgresql:
+  master:
+    nodeSelector:
+      kubernetes.io/os: linux
+  slave:
+    nodeSelector:
+      kubernetes.io/os: linux
+```
+
 <!-- TODO Add example command when we know the final name of the charts -->

 ## Uninstalling Backstage
@@ -63,6 +63,10 @@ spec:
          configMap:
            name: {{ include "backstage.fullname" . }}-app-config

+      {{- if .Values.global.nodeSelector }}
+      nodeSelector: {{- toYaml .Values.global.nodeSelector | nindent 8 }}
+      {{- end }}
+
 {{- if .Values.backend.enabled }}
 ---
 apiVersion: v1
@@ -43,6 +43,9 @@ spec:
        - name: app-config
          configMap:
            name: {{ include "backstage.fullname" . }}-app-config
+      {{- if .Values.global.nodeSelector }}
+      nodeSelector: {{- toYaml .Values.global.nodeSelector | nindent 8 }}
+      {{- end }}
 {{- if .Values.frontend.enabled }}
 ---
 apiVersion: v1
@@ -59,6 +59,10 @@ spec:
        - name: postgres-ca
          configMap:
            name: {{ include "backstage.fullname" . }}-postgres-ca
+
+      {{- if .Values.global.nodeSelector }}
+      nodeSelector: {{- toYaml .Values.global.nodeSelector | nindent 8 }}
+      {{- end }}
 ---
 apiVersion: v1
 kind: Service
@@ -69,6 +69,7 @@ global:
  postgresql:
    postgresqlUsername: backend-user
    caFilename: ca.crt
+  nodeSelector: {}

 postgresql:
  enabled: true