EDA UI image no longer works in Openshift environments

[rooftopcellist]

Problem

EDA UI image no longer works in Openshift environments

Additional Info

This seems to be because this section of the Dockerfile that set file permissions has been removed:

• https://github.com/ansible/ansible-ui/pull/766/files#diff-dd2c0eb6ea5cfc6c4bd4eac30934e2d5746747af48fef6da689e85b752f39557L12-L23

Deploying EDA now fails on Openshift:

$ oc logs eda-demo-ui-5c8489b8b4-8njms
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: can not modify /etc/nginx/conf.d/default.conf (read-only file system?)
/docker-entrypoint.sh: Sourcing /docker-entrypoint.d/15-local-resolvers.envsh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
20-envsubst-on-templates.sh: ERROR: /etc/nginx/templates exists, but /etc/nginx/conf.d is not writable
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2023/08/22 19:41:36 [warn] 1#1: the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:2
nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:2
2023/08/22 19:41:36 [emerg] 1#1: mkdir() "/var/cache/nginx/client_temp" failed (13: Permission denied)
nginx: [emerg] mkdir() "/var/cache/nginx/client_temp" failed (13: Permission denied)

[rooftopcellist]

The changes needed should be approximately this PR:

• https://github.com/ansible/ansible-ui/pull/400/files