Root cause: Failed to open TCP connection to puppet:8140 (getaddrinfo: Name or service not known

shoebill

Full Error:

Fatal error when running action 'list'
  Error: Failed connecting to https://puppet:8140/puppet-ca/v1/certificate_statuses/any_key
  Root cause: Failed to open TCP connection to puppet:8140 (getaddrinfo: Name or service not known)

Try to get a list of certificates and received this error.

$ sudo puppetserver ca list
Fatal error when running action 'list'
  Error: Failed connecting to https://puppet:8140/puppet-ca/v1/certificate_statuses/any_key
  Root cause: Failed to open TCP connection to puppet:8140 (getaddrinfo: Name or service not known)

This means it cannot find resolve your puppet hostname. Add it to local host file or DNS.