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feat(shield): pod disruption budget support for the cluster shield
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‎charts/shield/Chart.yaml

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@@ -13,5 +13,5 @@ maintainers:
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- name: mavimo
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email: [email protected]
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type: application
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version: 1.8.0
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version: 1.9.0
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appVersion: "1.0.0"

‎charts/shield/README.md

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@@ -246,6 +246,8 @@ The following table lists the configurable parameters of the `shield` chart and
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| cluster.env | The custom environment variables for cluster shield | <code>[]</code> |
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| cluster.volumes | The custom volumes for cluster shield | <code>[]</code> |
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| cluster.volume_mounts | The custom volume mounts for cluster shield | <code>[]</code> |
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| cluster.pod_disruption_budget.create | Create the PodDisruptionBudget for the cluster shield | <code>true</code> |
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| cluster.pod_disruption_budget.min_available | The minimum number of available pods for the cluster shield | <code>1</code> |
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| ssl.verify | Enable SSL verification | <code>true</code> |
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| ssl.ca.certs | For outbound connections (secure backend, proxy,...) A PEM-encoded x509 certificate. This can also be a bundle with multiple certificates. | <code>[]</code> |
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| ssl.ca.key_name | Filename that is used when creating the secret. Required if cert is provided. | <code></code> |

‎charts/shield/templates/cluster/poddisruptionbudget.yaml

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{{- if .Values.cluster.pod_disruption_budget.create }}
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apiVersion: policy/v1
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kind: PodDisruptionBudget
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metadata:
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name: {{ include "cluster.fullname" . | trunc 60 }}-pdb
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namespace: {{ .Release.Namespace }}
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spec:
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minAvailable: {{ .Values.cluster.pod_disruption_budget.min_available }}
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selector:
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matchLabels:
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{{ include "cluster.selector_labels" . | nindent 6 }}
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{{- end }}

‎charts/shield/tests/cluster/poddisruptionbudget_test.yaml

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suite: Cluster - PodDisruptionBudget
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templates:
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- templates/cluster/poddisruptionbudget.yaml
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release:
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name: release-name
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namespace: shield-namespace
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values:
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- ../values/base.yaml
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tests:
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- it: PodDisruptionBudget is created
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asserts:
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- isKind:
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of: PodDisruptionBudget
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- isSubset:
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path: metadata
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content:
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name: release-name-shield-cluster-pdb
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namespace: shield-namespace
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- equal:
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path: spec.minAvailable
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value: 1
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- isSubset:
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path: spec.selector.matchLabels
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content:
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app.kubernetes.io/instance: release-name
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app.kubernetes.io/name: shield
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sysdig/component: cluster
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- it: PodDisruptionBudget is not created when disabled
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set:
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cluster:
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pod_disruption_budget:
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create: false
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asserts:
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- hasDocuments:
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count: 0
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- it: PodDisruptionBudget minAvailable is configurable
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set:
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cluster:
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pod_disruption_budget:
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min_available: 2
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asserts:
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- equal:
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path: spec.minAvailable
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value: 2

‎charts/shield/values.schema.json

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"env": {
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"$ref": "#/$defs/EnvVars"
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},
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"pod_disruption_budget": {
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"type": "object",
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"description": "Pod disruption budget configuration for the Cluster Shield pods",
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"properties": {
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"create": {
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"type": "boolean",
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"description": "Create a Pod Disruption Budget for the Cluster Shield pods",
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"default": true
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},
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"min_available": {
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"type": ["integer"],
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"description": "Minimum number of pods that must be available",
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"default": 1,
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"minimum": 1
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}
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},
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"additionalProperties": false
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},
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"security_context": {
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"type": "object"
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},

‎charts/shield/values.yaml

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# The custom volume mounts for cluster shield
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volume_mounts: []
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# Defines the PodDisruptionBudget for the cluster shield
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pod_disruption_budget:
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# Create the PodDisruptionBudget for the cluster shield
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create: true
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# The minimum number of available pods for the cluster shield
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min_available: 1
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ssl:
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# Enable SSL verification
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verify: true

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