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helm: introduce affinity to select specific nodes for the DaemonSet
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Allow users to define custom affinity rules in values.yaml, specifying
preferred nodes for plugin DaemonSet Pods. Follows Kubernetes structure
for affinity fields.

Signed-off-by: Feruzjon Muyassarov <[email protected]>
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@fmuyassarov
fmuyassarov committed Nov 17, 2023
1 parent 59ede18 commit 1dc02b4
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Showing 15 changed files with 103 additions and 8 deletions.
3 changes: 2 additions & 1 deletion deployment/helm/balloons/README.md
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Expand Up @@ -98,7 +98,8 @@ customize with their own values, along with the default values.
| `hostPort` | 8891 | metrics port to expose on the host |
| `config` | <pre><code>ReservedResources:</code><br><code> cpu: 750m</code></pre> | plugin configuration data |
| `nri.patchRuntimeConfig` | false | enable NRI in containerd or CRI-O |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.tag` | unstable | init container image tag |
| `initImage.pullPolicy` | Always | init container image pull policy |
| `tolerations` | [] | specify taint toleration key, operator and effect |
| `affinity` | [] | specify node affinity |
4 changes: 4 additions & 0 deletions deployment/helm/balloons/templates/daemonset.yaml
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Expand Up @@ -17,6 +17,10 @@ spec:
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccount: nri-resource-policy-balloons
nodeSelector:
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14 changes: 14 additions & 0 deletions deployment/helm/balloons/values.yaml
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Expand Up @@ -37,3 +37,17 @@ tolerations: []
# - key: "node-role.kubernetes.io/control-plane"
# operator: "Exists"
# effect: "NoSchedule"

affinity: []
#
# Example:
#
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: topology.kubernetes.io/disk
# operator: In
# values:
# - ssd
5 changes: 3 additions & 2 deletions deployment/helm/memory-qos/README.md
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Expand Up @@ -90,13 +90,14 @@ customize with their own values, along with the default values.

| Name | Default | Description |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-memory-qos](https://ghcr.io/containers/nri-plugins/nri-memory-qos) | container image name |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-memory-qos](https://ghcr.io/containers/nri-plugins/nri-memory-qos) | container image name |
| `image.tag` | unstable | container image tag |
| `image.pullPolicy` | Always | image pull policy |
| `resources.cpu` | 10m | cpu resources for the Pod |
| `resources.memory` | 100Mi | memory qouta for the |
| `nri.patchRuntimeConfig` | false | enable NRI in containerd or CRI-O |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.tag` | unstable | init container image tag |
| `initImage.pullPolicy` | Always | init container image pull policy |
| `tolerations` | [] | specify taint toleration key, operator and effect |
| `affinity` | [] | specify node affinity |
4 changes: 4 additions & 0 deletions deployment/helm/memory-qos/templates/daemonset.yaml
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Expand Up @@ -17,6 +17,10 @@ spec:
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
nodeSelector:
kubernetes.io/os: "linux"
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14 changes: 14 additions & 0 deletions deployment/helm/memory-qos/values.yaml
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Expand Up @@ -29,3 +29,17 @@ tolerations: []
# - key: "node-role.kubernetes.io/control-plane"
# operator: "Exists"
# effect: "NoSchedule"

affinity: []
#
# Example:
#
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: topology.kubernetes.io/disk
# operator: In
# values:
# - ssd
5 changes: 3 additions & 2 deletions deployment/helm/memtierd/README.md
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Expand Up @@ -89,14 +89,15 @@ customize with their own values, along with the default values.

| Name | Default | Description |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-memtierd](https://ghcr.io/containers/nri-plugins/nri-memtierd) | container image name |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-memtierd](https://ghcr.io/containers/nri-plugins/nri-memtierd) | container image name |
| `image.tag` | unstable | container image tag |
| `image.pullPolicy` | Always | image pull policy |
| `resources.cpu` | 250m | cpu resources for the Pod |
| `resources.memory` | 100Mi | memory qouta for the |
| `outputDir` | empty string | host directory for memtierd.output files |
| `nri.patchRuntimeConfig` | false | enable NRI in containerd or CRI-O |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.tag` | unstable | init container image tag |
| `initImage.pullPolicy` | Always | init container image pull policy |
| `tolerations` | [] | specify taint toleration key, operator and effect |
| `affinity` | [] | specify node affinity |
4 changes: 4 additions & 0 deletions deployment/helm/memtierd/templates/daemonset.yaml
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Expand Up @@ -17,6 +17,10 @@ spec:
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
nodeSelector:
kubernetes.io/os: "linux"
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14 changes: 14 additions & 0 deletions deployment/helm/memtierd/values.yaml
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Expand Up @@ -31,3 +31,17 @@ tolerations: []
# - key: "node-role.kubernetes.io/control-plane"
# operator: "Exists"
# effect: "NoSchedule"

affinity: []
#
# Example:
#
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: topology.kubernetes.io/disk
# operator: In
# values:
# - ssd
5 changes: 3 additions & 2 deletions deployment/helm/sgx-epc/README.md
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Expand Up @@ -90,13 +90,14 @@ customize with their own values, along with the default values.

| Name | Default | Description |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-sgx-epc](https://ghcr.io/containers/nri-plugins/nri-sgx-epc) | container image name |
| `image.name` | [ghcr.io/containers/nri-plugins/nri-sgx-epc](https://ghcr.io/containers/nri-plugins/nri-sgx-epc) | container image name |
| `image.tag` | unstable | container image tag |
| `image.pullPolicy` | Always | image pull policy |
| `resources.cpu` | 25m | cpu resources for the Pod |
| `resources.memory` | 100Mi | memory qouta for the |
| `nri.patchRuntimeConfig` | false | enable NRI in containerd or CRI-O |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.tag` | unstable | init container image tag |
| `initImage.pullPolicy` | Always | init container image pull policy |
| `tolerations` | [] | specify taint toleration key, operator and effect |
| `affinity` | [] | specify node affinity |
4 changes: 4 additions & 0 deletions deployment/helm/sgx-epc/templates/daemonset.yaml
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Expand Up @@ -15,6 +15,10 @@ spec:
{{- include "sgx-epc.labels" . | nindent 8 }}
spec:
restartPolicy: Always
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
nodeSelector:
kubernetes.io/os: "linux"
{{- if .Values.nri.patchRuntimeConfig }}
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14 changes: 14 additions & 0 deletions deployment/helm/sgx-epc/values.yaml
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Expand Up @@ -20,3 +20,17 @@ initContainerImage:
# If not defined Chart.AppVersion will be used
#tag: unstable
pullPolicy: Always

affinity: []
#
# Example:
#
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: topology.kubernetes.io/disk
# operator: In
# values:
# - ssd
3 changes: 2 additions & 1 deletion deployment/helm/topology-aware/README.md
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Expand Up @@ -99,7 +99,8 @@ customize with their own values, along with the default values.
| `hostPort` | 8891 | metrics port to expose on the host |
| `config` | <pre><code>ReservedResources:</code><br><code> cpu: 750m</code></pre> | plugin configuration data |
| `nri.patchRuntimeConfig` | false | enable NRI in containerd or CRI-O |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.name` | [ghcr.io/containers/nri-plugins/config-manager](https://ghcr.io/containers/nri-plugins/config-manager) | init container image name |
| `initImage.tag` | unstable | init container image tag |
| `initImage.pullPolicy` | Always | init container image pull policy |
| `tolerations` | [] | specify taint toleration key, operator and effect |
| `affinity` | [] | specify node affinity |
4 changes: 4 additions & 0 deletions deployment/helm/topology-aware/templates/daemonset.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,10 @@ spec:
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccount: nri-resource-policy-topology-aware
nodeSelector:
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14 changes: 14 additions & 0 deletions deployment/helm/topology-aware/values.yaml
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Expand Up @@ -36,3 +36,17 @@ tolerations: []
# - key: "node-role.kubernetes.io/control-plane"
# operator: "Exists"
# effect: "NoSchedule"

affinity: []
#
# Example:
#
# affinity:
# nodeAffinity:
# requiredDuringSchedulingIgnoredDuringExecution:
# nodeSelectorTerms:
# - matchExpressions:
# - key: topology.kubernetes.io/disk
# operator: In
# values:
# - ssd

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