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If you think docker/container are for security, you’re doing it wrong.
Sure it’s for security… securing my host systems, you goomba. You devs being heve hoed out of my deployment and migration is one of the greatest releases ever, next fo busting a nut. Keep your filthy containers and VMs. Stay outta my host systems.
I’m a computer custodian and I absolutely hate the devs. They are maniacs. Harumph.
Docker is not rootless. Is only safe as long as the container (or those web devs) doesn’t use
nsenteror anything similar to get root access outside of it ;)Wrong again, though it is a fairly recent feature and as an answer to Podman and to meet OCI standards.
Ah, my bad “again”… should have mentioned that there’s the advance configuration option that 1% of the geeks do
It’s not a question of being a geek, but securing your entire supply chain. If you don’t already vet container image layers and cosigning said containers, chances are you’re already in risky rivers all the same.
In essence the rooted mode was never that big of a risk when compared to the actual runtimes. Certain attacks don’t even care about being in a user container if it deals with breaking the kernel itself, even with SELinux and AppArmor taken into account.
Rootless containers aren’t a magic bullet as a result. The only thing that you should concern yourself with is what you’re pushing to prod, how you layer your images and cosigning so that you can source… every mess… to every desk jockey junior…
You…
Do not…
Mess with my infra.
Indeed. Also, I am concerned about self-hosting enthusiasts that install docker (without the advance rootless mode) and blindly run containers. Sometimes these containers are even made by third parties, independent of the app developers. Unfortunately, the supply chain there is up for grabs…
I can recommend utilizing watchtower for image updates and ChainGuard registry for image layering if someone is using Docker. Watchtower should be fairly easy to implement, even across images, and chainguard meets with governmental and military standards. They are also quite lightweight images, since they’ve gone over to a new base distro that cuts down on a lot of cruft.
Eight years old and still hits home for the most part. Nowadays though, what I get is mostly “we’re moving to Azure” from clients that have no business in the cloud. Some environments are just not possible to move to a cloud environment without a redesign from scratch.
Not a dev-ops guys, just how useful /useless is docker?
Honestly? Pretty fucking awesome if you get it configured correctly. I don’t think it’s super useful for production (I prefer chef/vagrant) but for dev boxes it’s incredible at producing consistent environments even on different OSes and architectures.
Anything that makes it less painful for a dev to destroy and rebuild an environment that’s corrupt or even just a bit spooky pays for itself almost immediately.
I don’t think it’s super useful for production (I prefer chef/vagrant)
Yeah!
Docker and OCI get abused a lot to thoughtlessly ship a copy of the developer’s laptop into production.
Life is so much simpler after taking the time to build thoughtful correct recipes in an orchestration tool.
Anything that makes it less painful for a dev to destroy and rebuild an environment that’s corrupt or even just a bit spooky pays for itself almost immediately.
Exactly. The learning curve is mean, but it’s worth it quickly as soon as the first mystery bug dies in a rebuild fire.
In my experience, very, but it’s also not magic. Being able to package an application with its environment and ship it to any machine that can run Docker is great but it doesn’t solve the fact that modern deployment architecture can become extremely complicated, and Docker adds another component that needs configuration and debugging to an already complicated stack.
And a new set of dependency problems depending on the base image. And then fighting layers both to optimize size, and with some image hubs, “why won’t it upload that one file change? It’s a different file now! The hashes can’t possibly be the same!” And having to find hackey ways to slap it so the correct files are in the correct places.
Then manipulating multi-arch manifests to work reliably for other devs in a cross-processor environment so they don’t have to know how the sausage works…
It’s a way to provide standard configuration for your programs without one configuration interfering with another.
Honestly, almost all alternatives work better. But docker is the one you can run on any system without large changes.
I’m feeling attacked.
Based and vagrant pilled.
