feat(logging): add config to allow switching level format to human-re…

…adable log levels (#429)

* Switch to human-readable log levels
* Switch human readable logs to env var

Co-authored-by: Markus Maga <markus@maga.se>

charts/kubernetes-external-secrets/values.yaml

@@ -16,6 +16,8 @@ env:
   AWS_DEFAULT_REGION: us-west-2
   POLLER_INTERVAL_MILLISECONDS: 10000  # Caution, setting this frequency may incur additional charges on some platforms
   LOG_LEVEL: info
+  # Print logs level as string ("info") rather than integer (30)
+  # USE_HUMAN_READABLE_LOG_LEVELS: true
   METRICS_PORT: 3001
   VAULT_ADDR: http://127.0.0.1:8200
 #  GOOGLE_APPLICATION_CREDENTIALS: /app/gcp-creds/gcp-creds.json

config/environment.js

@@ -24,6 +24,8 @@ const pollerIntervalMilliseconds = process.env.POLLER_INTERVAL_MILLISECONDS
   ? Number(process.env.POLLER_INTERVAL_MILLISECONDS) : 10000
 
 const logLevel = process.env.LOG_LEVEL || 'info'
+const useHumanReadableLogLevels = 'USE_HUMAN_READABLE_LOG_LEVELS' in process.env
+
 const pollingDisabled = 'DISABLE_POLLING' in process.env
 
 const rolePermittedAnnotation = process.env.ROLE_PERMITTED_ANNOTATION || 'iam.amazonaws.com/permitted'
@@ -43,5 +45,6 @@ module.exports = {
   namingPermittedAnnotation,
   pollingDisabled,
   logLevel,
-  customResourceManagerDisabled
+  customResourceManagerDisabled,
+  useHumanReadableLogLevels
 }

config/index.js

@@ -35,7 +35,8 @@ const logger = pino({
   serializers: {
     err: pino.stdSerializers.err
   },
-  level: envConfig.logLevel
+  level: envConfig.logLevel,
+  useLevelLabels: envConfig.useHumanReadableLogLevels
 })
 
 const customResourceManager = new CustomResourceManager({