Lets Encrypt Certs

We need a valid cert for both the wildcard *.apps.ocp.ci.centos.org and api.ocp.ci.centos.org. We have a role/task which covers the replacing of TLS certs on ocp.ci/ocp.stg.ci https://github.com/CentOS/ansible-role-ocp-admin-node/blob/master/tasks/tls.yml.

A separate process is performed to request certs from LetsEncrypt, and stores the cacert/certs/key within the pkistore for ocp.ci/ocp.stg.ci.

To deploy the certs to the cluster, we run the following playbook: https://github.com/CentOS/ansible-infra-playbooks/blob/master/role-ocp-admin-node.yml.

eg:

ansible-playbook playbooks/role-ocp-admin-node.yml --tags "tls, certs"

Resources:

• [1] Certman Operator (looks like this requires HIVE[5] so not going to work) https://github.com/openshift/certman-operator
• [2] Changing the cert in OCP4 https://docs.openshift.com/container-platform/4.4/authentication/certificates/replacing-default-ingress-certificate.html
• [3] RHMI SOP for manually replacing certs on 3.11 cluster, many steps similar: https://github.com/RHCloudServices/integreatly-help/blob/master/sops/POC_cert_renewal.asciidoc
• [4] Option Brian suggested: https://github.com/tnozicka/openshift-acme
• [5] HIVE https://github.com/openshift/hive