Log base w/ configurable pid and hostname keys

config/environment.js

@@ -31,6 +31,10 @@ const pollerIntervalMilliseconds = process.env.POLLER_INTERVAL_MILLISECONDS
  ? Number(process.env.POLLER_INTERVAL_MILLISECONDS) : 10000
 
 const logLevel = process.env.LOG_LEVEL || 'info'
+const os = require('os')
+const logBasePidKey = process.env.LOG_BASE_PID_KEY || 'pid'
+const logBaseHostnameKey = process.env.LOG_BASE_HOSTNAME_KEY || 'hostname'
+const logBase = { [logBasePidKey]: process.pid, [logBaseHostnameKey]: os.hostname() }
 const useHumanReadableLogLevels = 'USE_HUMAN_READABLE_LOG_LEVELS' in process.env
 const logMessageKey = process.env.LOG_MESSAGE_KEY || 'msg'
 
@@ -70,6 +74,7 @@ module.exports = {
  enforceNamespaceAnnotation,
  pollingDisabled,
  logLevel,
+ logBase,
  useHumanReadableLogLevels,
  logMessageKey,
  watchTimeout,

config/index.js

@@ -40,6 +40,7 @@ const logger = pino({
  redact: ['err.options.headers', 'err.options.json.jwt'],
  messageKey: envConfig.logMessageKey || 'msg',
  level: envConfig.logLevel,
+ base: envConfig.logBase,
  formatters: {
  level (label, number) {
  return { level: envConfig.useHumanReadableLogLevels ? label : number }