Skip to content

yaml.parser.ParserError error when configuring postgres listen address with IPv6

Summary

  • A customer reports, configuring postgresql['listen_address'] using GET as [::] leads to the following error:
2025-09-23_05:27:26.42434 yaml.parser.ParserError: while parsing a flow node
2025-09-23_05:27:26.42435 expected the node content, but found ':'
2025-09-23_05:27:26.42435   in "/var/opt/gitlab/patroni/patroni.yaml", line 14, column 12

Steps to reproduce

  • Configure GET using IPv6 addresses
  • Set postgresql['listen_address'] to [::]
  • Run the playbook

What is the current bug behavior?

  • Get the yaml.parser.ParserError error

What is the expected correct behavior?

  • Configuring an IPv6 address for postgresql['listen_address'] should work
  • The issue stems from this line of code where the IP and port are merged together:
listen: <%= @postgresql_defaults['listen_address'] %>:<%= @postgresql_defaults['port'] %>

Relevant logs

Relevant logs

Details of package version

Provide the package version installation details