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Add automated nightly scaling of Deployments/StatefulSets/DaemonSets
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mgianluc
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Feb 16, 2024
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74 changes: 74 additions & 0 deletions
74
examples-automated-operations/scheduled-scaling/pause.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| # This cleaner: | ||
| # - runs at 8PM every day | ||
| # - finds all Deployments/StatefulSet/DaemonSet with | ||
| # annotation "pause-resume" | ||
| # | ||
| # For any such resource: | ||
| # - store current replicas in the annotation "previous-replicas" | ||
| # - set their replicas to zero (scale down and pause) | ||
| # | ||
| apiVersion: apps.projectsveltos.io/v1alpha1 | ||
| kind: Cleaner | ||
| metadata: | ||
| name: scale-down-deployment-statefulset-daemonset | ||
| spec: | ||
| schedule: "* 20 * * *" | ||
| action: Transform | ||
| transform: | | ||
| -- Set replicas to 0 | ||
| function transform() | ||
| hs = {} | ||
| if obj.metadata.annotations == nil then | ||
| obj.metadata.annotations = {} | ||
| end | ||
| -- store in the annotation current replicas value | ||
| obj.metadata.annotations["previous-replicas"] = tostring(obj.spec.replicas) | ||
| -- reset replicas to 0 | ||
| obj.spec.replicas = 0 | ||
| hs.resource = obj | ||
| return hs | ||
| end | ||
| resourcePolicySet: | ||
| resourceSelectors: | ||
| - kind: Deployment | ||
| group: apps | ||
| version: v1 | ||
| - kind: StatefulSet | ||
| group: "apps" | ||
| version: v1 | ||
| - kind: DaemonSet | ||
| group: "apps" | ||
| version: v1 | ||
| aggregatedSelection: | | ||
| function evaluate() | ||
| local hs = {} | ||
| -- returns true if object has annotaiton "pause-resume" | ||
| function hasPauseAnnotation(obj) | ||
| if obj.metadata.annotations ~= nil then | ||
| if obj.metadata.annotations["pause-resume"] then | ||
| return true | ||
| end | ||
| return false | ||
| end | ||
| return | ||
| end | ||
| local resourceToPause = {} | ||
| for _, resource in ipairs(resources) do | ||
| if hasPauseAnnotation(resource) then | ||
| table.insert(resourceToPause, {resource = resource}) | ||
| end | ||
| end | ||
| if #resourceToPause > 0 then | ||
| hs.resources = resourceToPause | ||
| end | ||
| return hs | ||
| end |
72 changes: 72 additions & 0 deletions
72
examples-automated-operations/scheduled-scaling/resume.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| # This cleaner: | ||
| # - runs at 8AM every day | ||
| # - finds all Deployments/StatefulSet/DaemonSet with | ||
| # annotation "pause-resume" | ||
| # | ||
| # For any such resource: | ||
| # - get old replicas in the annotation "previous-replicas" | ||
| # - set their replicas to such value (scale deployment/statefulset/daemonset up) | ||
| # | ||
| apiVersion: apps.projectsveltos.io/v1alpha1 | ||
| kind: Cleaner | ||
| metadata: | ||
| name: scale-up-deployment-statefulset-daemonset | ||
| spec: | ||
| schedule: "* 8 * * *" | ||
| action: Transform | ||
| transform: | | ||
| -- Set replicas to 0 | ||
| function transform() | ||
| hs = {} | ||
| if obj.metadata.annotations == nil then | ||
| return | ||
| end | ||
| if not obj.metadata.annotations["previous-replicas"] then | ||
| return | ||
| end | ||
| -- reset replicas | ||
| obj.spec.replicas = tonumber(obj.metadata.annotations["previous-replicas"]) | ||
| hs.resource = obj | ||
| return hs | ||
| end | ||
| resourcePolicySet: | ||
| resourceSelectors: | ||
| - kind: Deployment | ||
| group: apps | ||
| version: v1 | ||
| - kind: StatefulSet | ||
| group: "apps" | ||
| version: v1 | ||
| - kind: DaemonSet | ||
| group: "apps" | ||
| version: v1 | ||
| aggregatedSelection: | | ||
| function evaluate() | ||
| local hs = {} | ||
| -- returns true if object has annotaiton "pause-resume" | ||
| function hasPauseAnnotation(obj) | ||
| if obj.metadata.annotations ~= nil then | ||
| if obj.metadata.annotations["pause-resume"] then | ||
| return true | ||
| end | ||
| return false | ||
| end | ||
| return false | ||
| end | ||
| local resourceToUnPause = {} | ||
| for _, resource in ipairs(resources) do | ||
| if hasPauseAnnotation(resource) then | ||
| table.insert(resourceToUnPause, {resource = resource}) | ||
| end | ||
| end | ||
| if #resourceToUnPause > 0 then | ||
| hs.resources = resourceToUnPause | ||
| end | ||
| return hs | ||
| end |
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