[simple-app] Introduce an optional PodDisruptionBudget resource (#7)

Nextdoor · Apr 23, 2021 · 34c4601 · 34c4601
1 parent ab32295
commit 34c4601
Show file tree

Hide file tree

Showing 4 changed files with 19 additions and 2 deletions.
diff --git a/charts/simple-app/Chart.yaml b/charts/simple-app/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 name: simple-app
 description: Default Microservice Helm Chart
 type: application
-version: 0.2.2
+version: 0.3.0
 appVersion: latest
 maintainers:
   - name: diranged

diff --git a/charts/simple-app/README.md b/charts/simple-app/README.md
@@ -2,7 +2,7 @@
 
 Default Microservice Helm Chart
 
-![Version: 0.2.2](https://img.shields.io/badge/Version-0.2.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: latest](https://img.shields.io/badge/AppVersion-latest-informational?style=flat-square)
+![Version: 0.3.0](https://img.shields.io/badge/Version-0.3.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: latest](https://img.shields.io/badge/AppVersion-latest-informational?style=flat-square)
 
 [deployments]: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/
 [hpa]: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
@@ -44,6 +44,7 @@ defaults for you like the Kubernetes [Horizontal Pod Autoscaler][hpa].
 | nameOverride | string | `""` |  |
 | nodeSelector | object | `{}` |  |
 | podAnnotations | object | `{}` |  |
+| podDisruptionBudget | object | `{}` | Set up a PodDisruptionBudget for the Deployment |
 | podSecurityContext | object | `{}` |  |
 | ports | list | `[{"containerPort":80,"name":"http","protocol":"TCP"},{"containerPort":443,"name":"https","protocol":"TCP"}]` | A list of Port objects that are exposed by the service. These ports are applied to the main container, or the proxySidecar container (if enabled). The port list is also used to generate Network Policies that allow ingress into the pods. |
 | proxySidecar.enabled | bool | `false` | (Boolean) Enables injecting a pre-defined reverse proxy sidecar container into the Pod containers list. |

diff --git a/charts/simple-app/templates/poddisruptionbudget.yaml b/charts/simple-app/templates/poddisruptionbudget.yaml
@@ -0,0 +1,13 @@
+{{- if .Values.podDisruptionBudget -}}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ template "simple-app.fullname" . }}
+  labels:
+    {{- include "simple-app.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "simple-app.selectorLabels" . | nindent 8 }}
+  {{ toYaml .Values.podDisruptionBudget | nindent 2 }}
+{{- end }}
diff --git a/charts/simple-app/values.yaml b/charts/simple-app/values.yaml
@@ -1,6 +1,9 @@
 # -- The number of Pods to start up by default
 replicaCount: 1
 
+# -- Set up a PodDisruptionBudget for the Deployment
+podDisruptionBudget: {}
+
 image:
   # -- (String) The Docker image name and repository for your application
   repository: nginx