Wow, "hardened image" market is getting saturated. I saw atleast 3 companies offering this at Kubecon.
Chainguard came to this first (arguably by accident since they had several other offerings before they realized that people would pay (?!!) for a image that reported zero CVEs).
In a previous role, I found that the value for this for startups is immense. Large enterprise deals can quickly be killed by a security team that that replies with "scanner says no". Chainguard offered images that report 0 CVEs and would basically remove this barrier.
For example, a common CVE that I encountered was a glibc High CVE. We could pretty convincingly show that our app did not use this library in way to be vulnerable but it didn't matter. A high CVE is a full stop for most security teams. Migrated to a Wolfi image and the scanner reported 0. Cool.
But with other orgs like Minimus (founders of Twistlock) coming into this it looks like its about to be crowded.
There is even a govt project called Ironbank to offer something like this to the DoD.
Net positive for the ecosystem but I don't know if there is enough meat on the bone to support this many vendors.
Yep differentiation is tricky here. Chainguard are expanding out to VM images and programming language repos, but the core of hardened container images has a lot of options.
The question I'd be interested in is, outside of markets where there's a lot of compliance requirements, how much demand is there for this as a paid service...
People like lower CVE images, but are they willing to pay for them. I guess that's an advantage for Docker's offering. If it's free there is less friction to trying it out compared to a commercial offering.
The real question isn't whether the market is saturated, it's whether it still exists once Docker gives away the core value prop for free.