macOS in QEMU in Docker • Hacker News Board

Re: macOS in QEMU in Docker

#11

Post by amaccuish » Thu, Jun 04, 2020, 6:09 PM UTC

MuffinFlavored wrote: post #6

Does it have to be a Linux host? Can it be a Mac OS X host?

I'm pretty sure since Docker uses bhyve on mac, so that would be a nested VM...

Re: macOS in QEMU in Docker

#12

Post by maliker » Thu, Jun 04, 2020, 6:11 PM UTC

Now if we could just get a windows docker container running on unix hosts I could debug my cross-platform support.

Re: macOS in QEMU in Docker

#13

Post by tutfbhuf » Thu, Jun 04, 2020, 6:13 PM UTC

etaioinshrdlu wrote: post #8

So this is pretty misleading. It's really a full system emulator (qemu) running inside Docker, using root privileges on the container that make the isolation very weak (--privileged). It also uses hardware assisted virtualization (KVM) which is not going to be available most of the time Docker is. You can think of the Docker platform itself as subset of the Linux platform. With many common features removed by default…

Well the title: "A full system emulator (qemu) running inside Docker, using root privileges on the container that make the isolation very weak" would be a bit to long for HN, what do you think?

Re: macOS in QEMU in Docker

#14

Post by etaioinshrdlu » Thu, Jun 04, 2020, 6:18 PM UTC

tutfbhuf wrote: post #13

etaioinshrdlu wrote: post #8

So this is pretty misleading. It's really a full system emulator (qemu) running inside Docker, using root privileges on the container that make the isolation very weak (--privileged). It also uses hardware assisted virtualization (KVM) which is not going to be available most of the time Docker is. You can think of the Docker platform itself as subset of the Linux platform. With many common features removed by default…

Well the title: "A full system emulator (qemu) running inside Docker, using root privileges on the container that make the isolation very weak" would be a bit to long for HN, what do you think?

We are a bunch of pedantic nerds here though. How about "macOS in QEMU in Docker"?

Re: macOS in QEMU in Docker

#15

Post by joshlk » Thu, Jun 04, 2020, 6:20 PM UTC

Does this break the user agreement for macOS?

Re: macOS in QEMU in Docker

#16

Post by sjburt » Thu, Jun 04, 2020, 6:21 PM UTC

It's hard to see what Docker is adding here since qemu is being run inside Docker. You could get almost identical functionality out of a bare VM image and not deal with the hassles of docker.

Re: macOS in QEMU in Docker

#17

Post by jdboyd » Thu, Jun 04, 2020, 6:24 PM UTC

joshlk wrote: post #15

Does this break the user agreement for macOS?

Only if you do it on a non-Apple comoputer. If you install linux on your mac, then follow the guide I believe it should be fine.

Re: macOS in QEMU in Docker

#18

Post by joshgel » Thu, Jun 04, 2020, 6:27 PM UTC

Does it run iMessage on Windows?

Re: macOS in QEMU in Docker

#19

Post by cercatrova » Thu, Jun 04, 2020, 6:27 PM UTC

I just want a good CI/CD system for macOS to build iOS apps without needing to buy a farm of Mac Minis, or even buy a Mac, is that too much to ask?

Re: macOS in QEMU in Docker

#20

Post by qayxc » Thu, Jun 04, 2020, 6:32 PM UTC

sjburt wrote: post #16

It's hard to see what Docker is adding here since qemu is being run inside Docker. You could get almost identical functionality out of a bare VM image and not deal with the hassles of docker.

It's a hammer problem. Docker is the new hammer and now everything starts to look like nails.