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[stable/seq] Configure liveness and readiness probe values (#15472)

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* Seq: allow setting probe values

Signed-off-by: Gerard Godone-Maresca <ggodonemaresca+github@gmail.com>

* Increment chart version

Signed-off-by: Gerard Godone-Maresca <ggodonemaresca+github@gmail.com>
This commit is contained in:
Gerard Godone-Maresca
2019-07-14 16:59:04 -07:00
committed by Kubernetes Prow Robot
parent 1e074fc79d
commit d34a28651f
4 changed files with 77 additions and 34 deletions
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stable/seq/Chart.yaml
+1 -1
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@@ -1,6 +1,6 @@
apiVersion: v1
name: seq
version: 1.0.1
version: 1.0.2
appVersion: 5
description: Seq is the easiest way for development teams to capture, search and visualize structured log events! This page will walk you through the very quick setup process.
keywords:
stable/seq/README.md
+42 -30
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@@ -5,7 +5,7 @@
## TL;DR;
```bash
$ helm install seq
$ helm install stable/seq
```
## Introduction
@@ -43,30 +43,42 @@ The command removes all the Kubernetes components associated with the chart and
The following table lists the configurable parameters of the Seq chart and their default values.
| Parameter | Description | Default |
|-------------------------------|-------------------------------------------------- |------------------------------|
| `image.repository` | Image repository | `datalust/seq` |
| `image.tag` | Seq image tag. Possible values listed [here](https://hub.docker.com/r/datalust/seq/tags/).| `5`|
| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
| `acceptEULA` | Accept EULA | `Y` |
| `baseURI` | Base URL for ingress/AAD (see values.yaml)| |
| `service.type` | Kubernetes service type | `ClusterIP` |
| `service.port` | Kubernetes port where service is exposed| `5341` |
| `persistence.enabled` | Use persistent volume to store data | `true` |
| `persistence.size` | Size of persistent volume claim | `8Gi` |
| `persistence.existingClaim`| Use an existing PVC to persist data | `nil` |
| `persistence.storageClass` | Type of persistent volume claim | `generic` |
| `persistence.accessMode` | ReadWriteOnce or ReadOnly | `ReadWriteOnce` |
| `persistence.subPath` | Mount a sub directory of the persistent volume if set | `""` |
| `resources` | CPU/Memory resource requests/limits | Memory: `256Mi`, CPU: `100m` |
| `nodeSelector` | Node labels for pod assignment | `{}` |
| `affinity` | Affinity settings for pod assignment | `{}` |
| `tolerations` | Toleration labels for pod assignment | `[]` |
| `ingress.enabled` | Enables Ingress | `false` |
| `ingress.annotations` | Ingress annotations | `{}` |
| `ingress.labels` | Custom labels | `{}` |
| `ingress.hosts` | Ingress accepted hostnames | `[]` |
| `ingress.tls` | Ingress TLS configuration | `[]` |
| Parameter | Description | Default |
| ------------------------------------ | ----------------------------------------------------------------------------------------------------- | --------------- |
| `image.repository` | Image repository | `datalust/seq` |
| `image.tag` | Seq image tag. Possible values listed [here](https://hub.docker.com/r/datalust/seq/tags/). | `5` |
| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
| `acceptEULA` | Accept EULA | `Y` |
| `baseURI` | Base URL for ingress/AAD (see values.yaml) | |
| `service.type` | Kubernetes service type | `ClusterIP` |
| `service.port` | Kubernetes port where service is exposed | `5341` |
| `persistence.enabled` | Use persistent volume to store data | `true` |
| `persistence.size` | Size of persistent volume claim | `8Gi` |
| `persistence.existingClaim` | Use an existing PVC to persist data | `nil` |
| `persistence.storageClass` | Type of persistent volume claim | `generic` |
| `persistence.accessMode` | ReadWriteOnce or ReadOnly | `ReadWriteOnce` |
| `persistence.subPath` | Mount a sub directory of the persistent volume if set | `""` |
| `resources` | CPU/Memory resource requests/limits | `{}` |
| `nodeSelector` | Node labels for pod assignment | `{}` |
| `affinity` | Affinity settings for pod assignment | `{}` |
| `tolerations` | Toleration labels for pod assignment | `[]` |
| `ingress.enabled` | Enables Ingress | `false` |
| `ingress.annotations` | Ingress annotations | `{}` |
| `ingress.labels` | Custom labels | `{}` |
| `ingress.hosts` | Ingress accepted hostnames | `[]` |
| `ingress.tls` | Ingress TLS configuration | `[]` |
| `livenessProbe.enabled` | Enable/disable the Liveness probe | `true` |
| `livenessProbe.failureThreshold` | Minimum consecutive failures for the liveness probe to be considered failed after having succeeded | `3` |
| `livenessProbe.initialDelaySeconds` | Delay before liveness probe is initiated | `0` |
| `livenessProbe.periodSeconds` | How often to perform the liveness probe | `10` |
| `livenessProbe.successThreshold` | Minimum consecutive successes for the liveness probe to be considered successful after having failed | `1` |
| `livenessProbe.timeoutSeconds` | When the liveness probe times out | `1` |
| `readinessProbe.enabled` | Enable/disable the Readiness probe | `true` |
| `readinessProbe.failureThreshold` | Minimum consecutive failures for the readiness probe to be considered failed after having succeeded | `3` |
| `readinessProbe.initialDelaySeconds` | Delay before readiness probe is initiated | `0` |
| `readinessProbe.periodSeconds` | How often to perform the readiness probe | `10` |
| `readinessProbe.successThreshold` | Minimum consecutive successes for the readiness probe to be considered successful after having failed | `1` |
| `readinessProbe.timeoutSeconds` | When the readiness probe times out | `1` |
Some of the parameters above map to the env variables defined in the [Seq DockerHub image](https://hub.docker.com/r/datalust/seq/).
@@ -75,13 +87,13 @@ Specify each parameter using the `--set key=value[,key=value]` argument to `helm
```bash
$ helm install --name my-release \
--set persistence.size=8Gi \
seq
stable/seq
```
Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
```bash
$ helm install --name my-release -f values.yaml seq
$ helm install --name my-release -f values.yaml stable/seq
```
> **Tip**: You can use the default [values.yaml](values.yaml)
@@ -95,9 +107,9 @@ By default, the chart mounts a [Persistent Volume](http://kubernetes.io/docs/use
### Existing PersistentVolumeClaim
1. Create the PersistentVolume
1. Create the PersistentVolumeClaim
1. Install the chart
2. Create the PersistentVolumeClaim
3. Install the chart
```bash
$ helm install --set persistence.existingClaim=PVC_NAME seq
$ helm install --set persistence.existingClaim=PVC_NAME stable/seq
```
stable/seq/templates/deployment.yaml
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@@ -36,14 +36,28 @@ spec:
- name: ui
containerPort: 80
protocol: TCP
{{- if .Values.livenessProbe.enabled }}
livenessProbe:
httpGet:
path: /
port: ui
failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
successThreshold: {{ .Values.livenessProbe.successThreshold }}
timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
{{- end }}
{{- if .Values.readinessProbe.enabled }}
readinessProbe:
httpGet:
path: /
port: ui
failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
successThreshold: {{ .Values.readinessProbe.successThreshold }}
timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
{{- end }}
volumeMounts:
- name: seq-data
mountPath: {{ .Values.persistence.path }}
stable/seq/values.yaml
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@@ -34,10 +34,10 @@ resources: {}
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# memory: 256Mi
# requests:
# cpu: 100m
# memory: 128Mi
# memory: 256Mi
nodeSelector: {}
@@ -63,7 +63,7 @@ persistence:
## If defined, PVC must be created manually before volume will be bound
# existingClaim:
## redis data Persistent Volume Storage Class
## seq data Persistent Volume Storage Class
## If defined, storageClassName: <storageClass>
## If set to "-", storageClassName: "", which disables dynamic provisioning
## If undefined (the default) or set to null, no storageClassName spec is
@@ -87,3 +87,20 @@ ingress:
# - secretName: chart-example-tls
# hosts:
# - chart-example.local
## Configure liveness and readiness probe values
## Ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/#configure-probes
livenessProbe:
enabled: true
failureThreshold: 3
initialDelaySeconds: 0
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
readinessProbe:
enabled: true
failureThreshold: 3
initialDelaySeconds: 0
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1