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feat(chart): allow configuration of k8s_sensor pod disruption budget #18

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feat(chart): allow configuration of k8s_sensor pod disruption budget #18

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11 changes: 10 additions & 1 deletion instana-agent/README.md
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Expand Up @@ -139,7 +139,12 @@ The following table lists the configurable parameters of the Instana chart and t
| `serviceAccount.name` | Name of the ServiceAccount to use | `instana-agent` |
| `zone.name` | Zone that detected technologies will be assigned to | `nil` You must provide either `zone.name` or `cluster.name`, see [above](#installation) for details |
| `zones` | Multi-zone daemonset configuration. | `nil` see [below](#multiple-zones) for details |
| `k8s_sensor.podDisruptionBudget.enabled` | Whether to create DisruptionBudget for k8sensor to limit the number of concurrent disruptions | `false` |
| `k8s_sensor.podDisruptionBudget.enabled` | Whether to create DisruptionBudget for k8sensor to limit the number of concurrent disruptions |
`false` |
| `k8s_sensor.podDisruptionBudget.minAvailable` | Number or percentage of pods that must still be available after the eviction. |
`1` |
| `k8s_sensor.podDisruptionBudget.maxUnavailable` | Number or percentage of pods that can be unavailable after the eviction. |
`null` |
| `k8s_sensor.deployment.pod.affinity` | `k8sensor` deployment affinity format | `podAntiAffinity` defined in `values.yaml` |

### Agent Modes
Expand Down Expand Up @@ -359,6 +364,10 @@ zones:

## Changelog

### 1.2.68

* Allow configuration of k8s_sensor pod disruption budget

### 1.2.67

* Fix variable name in the K8s deployment
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3 changes: 2 additions & 1 deletion instana-agent/templates/k8s-sensor-pod-disruption-budget.yaml
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Expand Up @@ -8,6 +8,7 @@ spec:
selector:
matchLabels:
{{- include "k8s-sensor.selectorLabels" . | nindent 6 }}
minAvailable: {{ sub (int .Values.k8s_sensor.deployment.replicas) 1 }}
minAvailable: {{ .Values.k8s_sensor.podDisruptionBudget.minAvailable }}
maxUnavailable: {{ .Values.k8s_sensor.podDisruptionBudget.maxUnavailable }}
{{- end -}}
{{- end -}}
2 changes: 2 additions & 0 deletions instana-agent/values.yaml
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Expand Up @@ -262,6 +262,8 @@ k8s_sensor:
podDisruptionBudget:
# Specifies whether or not to setup a pod disruption budget for the k8sensor deployment
enabled: false
minAvailable: 1
maxUnavailable: null

kubernetes:
# Configures use of a Deployment for the Kubernetes sensor rather than as a potential member of the DaemonSet. Is only accepted if k8s_sensor.deployment.enabled=false
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