ERROR [2/4] RUN yum -y install httpd

[Justin-JHG]

getting above error when doing building container for app2-containerofcats
https://learn.cantrill.io/courses/docker-fundamentals/lectures/44660840

---

 > [2/4] RUN yum -y install httpd:
0.519 Updating Subscription Management repositories.
0.519 Unable to read consumer identity
0.525
0.525 This system is not registered with an entitlement server. You can use subscription-manager to register.
0.525
0.978 Red Hat Universal Base Image 8 (RPMs) - BaseOS  0.0  B/s |   0  B     00:00
0.979 Errors during downloading metadata for repository 'ubi-8-baseos-rpms':
0.979   - Curl error (60): Peer certificate cannot be authenticated with given CA certificates for https://cdn-ubi.redhat.com/content/public/ubi/dist/ubi8/8/x86_64/baseos/os/repodata/repomd.xml [SSL certificate problem: unable to get local issuer certificate]
0.997 Error: Failed to download metadata for repo 'ubi-8-baseos-rpms': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried