docker-machine tweaks in support of PR #13

[dx9]

Depends on #13

Tested against docker-machine.

[sharifelgamal]

This has been tested and works with minikube as well. I'm would be happy for this to get merged and to abandon my PR.

[tstromberg]

Can we merge this?

[maciejzj]

Any chance this will be merged?

[zazula]

Can verify that this now makes docker-machine create --driver hyperkit usable on MacOS :)

[spiilmusic]

Hi @zazula Did you manage to start some container in hyperkit docker-machine with this changes?

I got the error:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:109: jailing process inside rootfs caused \\\"pivot_root invalid argument\\\"\"": unknown.

[zazula]

Hi @zazula Did you manage to start some container in hyperkit docker-machine with this changes?

I got the error:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:109: jailing process inside rootfs caused \\\"pivot_root invalid argument\\\"\"": unknown.

Try adding this to your docker-machine command:

--engine-env DOCKER_RAMDISK=true

[spiilmusic]

Try adding this to your docker-machine command:

--engine-env DOCKER_RAMDISK=true

Strange, but with this env I even can't pull image, btw it works normally on vbox machine:

docker pull alpine                                                                                        
Using default tag: latest
Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

[zazula]

Try adding this to your docker-machine command: --engine-env DOCKER_RAMDISK=true

Strange, but with this env I even can't pull image, btw it works normally on vbox machine:

docker pull alpine                                                                                        
Using default tag: latest
Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

Try with my clone of the repo here:

https://github.com/zazula/docker-machine-driver-hyperkit

brew install golang dep
go get github.com/zazula/docker-machine-driver-hyperkit
cd ~/go/src/github.com/zazula/docker-machine-driver-hyperkit
make build

docker-machine -D create --driver hyperkit --engine-env DOCKER_RAMDISK=true --hyperkit-cpu-count 12 --hyperkit-disk-size 40960 --hyperkit-memory-size 16192  local
[...]

then

$eval $(docker-machine env local)

$docker pull alpine
Using default tag: latest
latest: Pulling from library/alpine
188c0c94c7c5: Pull complete 
Digest: sha256:c0e9560cda118f9ec63ddefb4a173a2b2a0347082d7dff7dc14272e7841a5b5a
Status: Downloaded newer image for alpine:latest
docker.io/library/alpine:latest

$ docker run -it alpine sh
/ # ls
bin    etc    lib    mnt    proc   run    srv    tmp    var
dev    home   media  opt    root   sbin   sys    usr
/ # exit

[zazula]

Also, make sure your hyperkit binary is setuid root

[spiilmusic]

Also, make sure your hyperkit binary is setuid root

It looks like it was trouble with my host /etc/resolv.conf, so docker-machine couldn't access internet. At this time I was able to run containers 🎉 One note: I had to run make build with CGO_ENABLED=1 due to an error: Error creating machine: Error in driver during machine creation: getting MAC address from UUID: Function not supported on CGO_ENABLED=0 binaries

Anyway thx! Now I got significant  increase mount host filesystem performance 🥳

[zazula]

Also, make sure your hyperkit binary is setuid root

It looks like it was trouble with my host /etc/resolv.conf, so docker-machine couldn't access internet. At this time I was able to run containers 🎉 One note: I had to run make build with CGO_ENABLED=1 due to an error: Error creating machine: Error in driver during machine creation: getting MAC address from UUID: Function not supported on CGO_ENABLED=0 binaries

Anyway thx! Now I got significant  increase mount host filesystem performance 🥳

Great! I don't recall doing anything with the CGO_ENABLED flag but glad you have it working.

I'm working on some fixes for NFS mounts and exposing some of the NFS config flags as --hyperkit-nfs-xxx

[JesusTheHun]

hi, can someone provide an update on this ?