Add possibility to manipulate /metrics endpoint registration e.g. se another expressjs instance.
Origin of pull request:
We need to expose app details using express instance listening at port 80, but we won't expose publicly '/metrics'. We want to be able to create another express instance and expose there '/metrics'.
Add possibility to manipulate /metrics endpoint registration e.g. se another expressjs instance.
Origin of pull request: We need to expose app details using express instance listening at port 80, but we won't expose publicly '/metrics'. We want to be able to create another express instance and expose there '/metrics'.
Please bless this PR, and merge.