Module Settings

Source: hello-pepr-config

Pepr modules can be customized through configuration options in package.json under the pepr section. These module-level settings apply globally across all capabilities, allowing you to customize labels, environment variables, namespace exclusions, and webhook behavior.

Use module configuration for:

Setting global behavior that applies to all capabilities in your module
Adding custom labels for organizational or monitoring purposes
Injecting environment variables needed across multiple capabilities
Excluding system namespaces from processing
Adjusting webhook timeouts for cluster-specific performance needs

Code Examples

View full example on Github

Module Configuration in package.json:

{
  "pepr": {
    "uuid": "aac63ece-b202-5b18-b3c8-fff5b631a4f1",
    "onError": "reject",
    "webhookTimeout": 15,
    "customLabels": {
      "namespace": {
        "super": "secret",
        "special": "sauce"
      }
    },
    "alwaysIgnore": {
      "namespaces": [
        "hello-pepr-config-ignore"
      ]
    },
    "env": {
      "ITS": "a bird, a plane, superman"
    }
  }
}

Accessing Environment Variables in Code:

When(a.ConfigMap)
  .IsCreated()
  .InNamespace(name)
  .WithName("noop")
  .Mutate(async function mutateEnv() {
    Log.info({ ITS: process.env.ITS }, "env");
  });

Example pod log output:

{"level":30,"time":<timestamp>,"pid":<pid>,"hostname":"pepr-<hostname>","ITS":"a bird, a plane, superman","msg":"env"}

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