How to mount components folder when deploying through Helm charts?

Thank you @erohmensing,

Under which of these do I implement it?

resources: {}
      # additional volumeMounts to the main container

extraVolumeMounts: []
      # - name: tmpdir
      #   mountPath: /var/lib/mypath

  # additional volumes to the pod
  extraVolumes: []
  # - name: tmpdir
  #   emptyDir: {}

Also, how do I add these external files (they are available in my Github repo)?

Sorry for these simplistic questions, Docker/Kubernetes/Helm is relatively new to me!