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Fix: Add support for tains (#790) (#791)
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yogananth subramanian
2025-05-06 22:21:59 +05:30
committed by GitHub
parent 3b4d8a13f9
commit aee838d3ac
5 changed files with 7 additions and 2 deletions
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2
docs/hog_scenarios.md
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@@ -18,6 +18,8 @@ these workloads will use a predetermined amount of resources for a specified dur
|`namespace`| string | the namespace where the stress workload will be deployed |
|`node-selector`| string (Optional) | defines the node selector for choosing target nodes. If not specified, one schedulable node in the cluster will be chosen at random. If multiple nodes match the selector, all of them will be subjected to stress. If number-of-nodes is specified, that many nodes will be randomly selected from those identified by the selector. |
|`number-of-nodes`| number (Optional) | restricts the number of selected nodes by the selector|
|`taints`| list (Optional) default [] | list of taints for which tolerations need to created. Example: ["node-role.kubernetes.io/master:NoSchedule"]|
#### `cpu-hog` options

2
krkn/scenario_plugins/hogs/hogs_scenario_plugin.py
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@@ -33,7 +33,7 @@ class HogsScenarioPlugin(AbstractScenarioPlugin):
else:
node_selector = scenario_config.node_selector
available_nodes = lib_telemetry.get_lib_kubernetes().list_schedulable_nodes(node_selector)
available_nodes = lib_telemetry.get_lib_kubernetes().list_nodes(node_selector)
if len(available_nodes) == 0:
raise Exception("no available nodes to schedule workload")

1
scenarios/kube/cpu-hog.yml
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@@ -7,3 +7,4 @@ cpu-load-percentage: 90
cpu-method: all
node-selector: "node-role.kubernetes.io/worker="
number-of-nodes: 2
taints: [] #example ["node-role.kubernetes.io/master:NoSchedule"]

3
scenarios/kube/io-hog.yml
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@@ -11,4 +11,5 @@ io-target-pod-volume:
hostPath:
path: /root # a path writable by kubelet in the root filesystem of the node
node-selector: "node-role.kubernetes.io/worker="
number-of-nodes: ''
number-of-nodes: ''
taints: [] #example ["node-role.kubernetes.io/master:NoSchedule"]

1
scenarios/kube/memory-hog.yml
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@@ -6,3 +6,4 @@ namespace: default
memory-vm-bytes: 90%
node-selector: "node-role.kubernetes.io/worker="
number-of-nodes: ''
taints: [] #example ["node-role.kubernetes.io/master:NoSchedule"]