Configure securityContext for containers

[burcheja]

In order to improve the security of the containers, as described in the references below, request that consideration be given to configuring the securityContext to specify a user other than root. This would help compartmentalize the impact if a container were compromised by mitigating potential container escape vulnerabilities.

• https://aws.github.io/aws-eks-best-practices/security/docs/pods/#do-not-run-processes-in-containers-as-root
• https://media.defense.gov/2022/Aug/29/2003066362/-1/-1/0/CTR_KUBERNETES_HARDENING_GUIDANCE_1.2_20220829.PDF

[jawadqur]

#136

This is being handled in this effort. We are re-making all of our images based on a secure base image + moving all users to be non-root.

[EliseCastle23]

Almost all of our services have been updated to run as the "gen3" user instead of "root." You can now take advantage of these updates by using the latest image for each service.