[common] v3.0.0 (#576)

* [common] Modify default probe settings

* Small CHANGELOG update

* Add kubeVersion to metadata

charts/common/CHANGELOG.md

@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.0.0]
+
+### Changed
+
+- `probes.startupProbe` is now enabled by default. This will allow for quicker `Ready` states on Pods. It will precede the liveness and readiness Probes. *Note:* This requires that you are running [Kubernetes 1.16](https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/)
+- Aligned our default values for liveness and readiness Probes with the Kubernetes defaults:
+  - `initialDelaySeconds` is now `0`
+  - `timeoutSeconds` is now `1`
+  - `failureThreshold` is now `3`
+
 ## [2.5.1]
 
 ### Added
@@ -99,6 +109,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 This is the last version before starting this changelog. All sorts of cool stuff was changed, but only `git log` remembers what that was :slightly_frowning_face:
 
+[3.0.0]: https://github.com/k8s-at-home/charts/tree/common-3.0.0/charts/common
+
 [2.5.1]: https://github.com/k8s-at-home/charts/tree/common-2.5.1/charts/common
 
 [2.5.0]: https://github.com/k8s-at-home/charts/tree/common-2.5.0/charts/common

charts/common/Chart.yaml

@@ -2,7 +2,8 @@ apiVersion: v2
 name: common
 description: Function library for k8s-at-home charts
 type: library
-version: 2.5.1
+version: 3.0.0
+kubeVersion: ">=1.16.0"
 keywords:
   - k8s-at-home
   - common

charts/common/values.yaml

@@ -98,10 +98,10 @@ probes:
     ## The spec field contains the values for the default livenessProbe.
     ## If you selected custom: true, this field holds the definition of the livenessProbe.
     spec:
-      initialDelaySeconds: 30
+      initialDelaySeconds: 0
-      failureThreshold: 5
       periodSeconds: 10
-      timeoutSeconds: 10
+      timeoutSeconds: 1
+      failureThreshold: 3
 
   readiness:
     enabled: true
@@ -110,22 +110,23 @@ probes:
     ## The spec field contains the values for the default readinessProbe.
     ## If you selected custom: true, this field holds the definition of the readinessProbe.
     spec:
-      initialDelaySeconds: 30
+      initialDelaySeconds: 0
-      failureThreshold: 5
       periodSeconds: 10
-      timeoutSeconds: 10
+      timeoutSeconds: 1
+      failureThreshold: 3
 
   startup:
-    enabled: false
+    enabled: true
     ## Set this to true if you wish to specify your own startupProbe
     custom: false
     ## The spec field contains the values for the default startupProbe.
     ## If you selected custom: true, this field holds the definition of the startupProbe.
     spec:
-      initialDelaySeconds: 5
+      initialDelaySeconds: 0
+      timeoutSeconds: 1
+      ## This means it has a maximum of 5*30=150 seconds to start up before it fails
+      periodSeconds: 5
       failureThreshold: 30
-      periodSeconds: 10
-      timeoutSeconds: 10
 
 service:
   enabled: true