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Cap exceeds resource value

org.openrewrite.kubernetes.resource.CapResourceValueToMaximum

Cap resource values that exceed a specific maximum.

Recipe source​

This recipe is only available to users of Moderne.

This recipe is available under the Moderne Proprietary License.

Options​

TypeNameDescriptionExample
StringresourceValueTypeThe type of resource to search for. Valid options: limits, requestslimits
StringresourceTypeThe type of resource value to search for. Valid options: cpu, memorymemory
StringresourceLimitThe resource maximum to search for to find resources that request more than the maximum.2Gi
StringfileMatcherOptional. Matching files will be modified. This is a glob expression.**/pod-*.yml

Example​

Parameters​
ParameterValue
resourceValueTypelimits
resourceTypememory
resourceLimit64Mi
fileMatchernull
Before​
apiVersion: v1
kind: Pod
metadata:
  labels:
    app: application
spec:
  containers:
  - image: nginx:latest
    resources:
        limits:
            cpu: "500Mi"
            memory: "256M"
After​
apiVersion: v1
kind: Pod
metadata:
  labels:
    app: application
spec:
  containers:
  - image: nginx:latest
    resources:
        limits:
            cpu: "500Mi"
            memory: "67M"

Usage​

This recipe has required configuration parameters and can only be run by users of Moderne. To run this recipe, you will need to provide the Moderne CLI run command with the required options. Or, if you'd like to create a declarative recipe, please see the below example of a rewrite.yml file:

rewrite.yml
---
type: specs.openrewrite.org/v1beta/recipe
name: com.yourorg.CapResourceValueToMaximumExample
displayName: Cap exceeds resource value example
recipeList:
  - org.openrewrite.kubernetes.resource.CapResourceValueToMaximum: 
      resourceValueType: limits
      resourceType: memory
      resourceLimit: 2Gi
      fileMatcher: '**/pod-*.yml'

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell
mod run . --recipe CapResourceValueToMaximum --recipe-option "resourceValueType=limits" --recipe-option "resourceType=memory" --recipe-option "resourceLimit=2Gi" --recipe-option "fileMatcher='**/pod-*.yml'"

If the recipe is not available locally, then you can install it using:

mod config recipes jar install org.openrewrite.recipe:rewrite-kubernetes:3.4.0

See how this recipe works across multiple open-source repositories​

Run this recipe on OSS repos at scale with the Moderne SaaS.

The community edition of the Moderne platform enables you to easily run recipes across thousands of open-source repositories.

Please contact Moderne for more information about safely running the recipes on your own codebase in a private SaaS.

Data Tables​

Source files that had results​

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Column NameDescription
Source path before the runThe source path of the file before the run. null when a source file was created during the run.
Source path after the runA recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Parent of the recipe that made changesIn a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all.
Recipe that made changesThe specific recipe that made a change.
Estimated time savingAn estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
CycleThe recipe cycle in which the change was made.

Contributors​

Jon Brisbin, Jonathan Schneider, Knut Wannheden, Tim te Beek