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Having played with SmartOS containers using linux compatibility (not docker). I will say this: Use native containers for that OS. The slight differences that yo

Having played with SmartOS containers using linux compatibility (not docker). I will say this: Use native containers for that OS. The slight differences that you will find, will drive you up the wall. They will be esoteric and happen at the worst time. And i should say I love SmartOS, it is a really cool bit of tech... I just love simplicity more, and a compatibility layer is never simple.

hedora 6y ago
Yeah. I can’t even get some Linux containers to run under $ESCOTERIC_DEBIAN_BASED_DISTRO. The ancient rhel something something doesn’t like the debian other thing, and I even saw a changelog about broken kernel compatibility and flipping a flag in proc or cmdline but then I forgot what it said. Whatever. Life is short. Docker is in no way independent of the host kernel. Spend time debugging something else. SmartOS is great though. I wish they’d take over the world.
- yjftsjthsd-h 6y ago
  > Yeah. I can’t even get some Linux containers to run under $ESCOTERIC_DEBIAN_BASED_DISTRO. I would love any details you can provide; that sounds interesting. (I'm an OS nerd)
- danieldk 6y ago
  To give this argument some more meat with an example: some older glibc versions use vsyscalls and not vDSO. And kernels in some modern distributions disable vsyscall emulation. This is a problem because people use CentOS 5 or 6 images to build binaries that are compatible with many historical glibc versions. If the host system does not enable vsyscall emulation, running binaries on such old distributions will lead to segfaults. (Which can be resolved by booting the host kernel with vsyscall=emulate.)
cchdmdldkdjfdk 6y ago
https://en.wikipedia.org/wiki/SmartOS https://en.wikipedia.org/wiki/SmartOS If linux comes out with tools remotely approaching the quality of either freebsd or solaris planning everyone should drop what they're doing to go watch. Linux ain't gonna improve itself, and the pains of docker are an excellent entry to pressuring linux devs to do anything that can improve userspace experience, an otherwise deeply unlikely prospect. It took them more than a decade to implement basic jailing after BSDs and the tech is still, shall we say, extremely rough....

hedora 6y ago

Yeah. I can’t even get some Linux containers to run under $ESCOTERIC_DEBIAN_BASED_DISTRO. The ancient rhel something something doesn’t like the debian other thing, and I even saw a changelog about broken kernel compatibility and flipping a flag in proc or cmdline but then I forgot what it said. Whatever. Life is short. Docker is in no way independent of the host kernel. Spend time debugging something else. SmartOS is great though. I wish they’d take over the world.

yjftsjthsd-h 6y ago
> Yeah. I can’t even get some Linux containers to run under $ESCOTERIC_DEBIAN_BASED_DISTRO. I would love any details you can provide; that sounds interesting. (I'm an OS nerd)
danieldk 6y ago
To give this argument some more meat with an example: some older glibc versions use vsyscalls and not vDSO. And kernels in some modern distributions disable vsyscall emulation. This is a problem because people use CentOS 5 or 6 images to build binaries that are compatible with many historical glibc versions. If the host system does not enable vsyscall emulation, running binaries on such old distributions will lead to segfaults. (Which can be resolved by booting the host kernel with vsyscall=emulate.)

cchdmdldkdjfdk 6y ago

https://en.wikipedia.org/wiki/SmartOS https://en.wikipedia.org/wiki/SmartOS If linux comes out with tools remotely approaching the quality of either freebsd or solaris planning everyone should drop what they're doing to go watch. Linux ain't gonna improve itself, and the pains of docker are an excellent entry to pressuring linux devs to do anything that can improve userspace experience, an otherwise deeply unlikely prospect. It took them more than a decade to implement basic jailing after BSDs and the tech is still, shall we say, extremely rough....