It appears to be enabled by default and setting enable_telemetry = false doesn't appear to disable telemetry at all. Reported by: rhn-support-dhill https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/10/html/director_installation_and_usage/chap-installing_the_undercloud#annotations:64c99c3c-5e08-43d8-a57c-15cccfb4a0cf
And it looks like it's enabled by default instead of being disabled by default.
OSP10 is EOL and for later long life release versions telemetry services are disabled by default: OSP13: https://code.engineering.redhat.com/gerrit/gitweb?p=instack-undercloud.git;a=blob;f=instack_undercloud/undercloud.py;h=850ad55c22529f384d26d2a0d942c3d672625af0;hb=refs/heads/rhos-13.0-patches#l326 OSP16.1 https://code.engineering.redhat.com/gerrit/gitweb?p=python-tripleoclient.git;a=blob;f=tripleoclient/config/undercloud.py;h=584e58a2c92e1257dbd24ccd94d8ddf317e18e3f;hb=refs/heads/rhos-16.1-patches#l81