Ignition error on booting cp nodes

[mattjwarren]

After starting bootstrap, I have the following problem and noted issues;

I am using CentOS Stream 9

booting the nodes with:-
sudo coreos-installer install /dev/sda -u http://192.168.100.1:8080/ocp4/rhcos -I http://192.168.100.1:8080/ocp4/XXXXX.ign --insecure --insecure-ignition
(for bootstrap.ign / master.ign)

all config files and manifests have been updated to use 192.168.100 as the network used

bootstrap node completes, but reports on the console 'Unable to pull OpenShift release image'

cp nodes repeat the message 'ignition[...]: GET error: Get "https://api-int.lab.ocp.lan:22623/config/master: attempt #..'

Curling the failing url from ocp-svc I get

curl https://api-int.lab.ocp.lan:22623/config/master
curl: (35) OpenSSL SSL_connect: SSL_ERROR_ZERO_RETURN in connection to api-int.lab.ocp.lan:22623

I am not certain how to avoid the SSL check or correct the problem.