Recent emulator experiments on moonshot hardware and packet.net did not run docker. Can we run the android emulator with an x86 image and use kvm-acceleration inside a docker container?

Running on my own laptop.... Be sure to run with --privileged: sudo docker run --privileged -ti as root (not sure how much of this is necessary yet): apt-get update apt-get install kvm apt-get upgrade sudo modprobe kvm_intel mknod /dev/kvm c 10 232 chgrp kvm /dev/kvm adduser worker kvm chmod g+w /dev/kvm modprobe kvm_intel <download avd, emulator> worker@cbb9225b6bb6:~$ ls -l /dev/kvm crw-rw-r-- 1 root kvm 10, 232 Feb 21 21:00 /dev/kvm worker@cbb9225b6bb6:~$ lsmod | grep kvm kvm_intel 176128 3 kvm 544768 1 kvm_intel irqbypass 16384 1 kvm worker@cbb9225b6bb6:~$ id uid=1000(worker) gid=1000(worker) groups=1000(worker),44(video),127(kvm) worker@cbb9225b6bb6:~$ kvm-ok INFO: /dev/kvm exists KVM acceleration can be used worker@cbb9225b6bb6:~$ emulator -accel-check accel: 0 KVM (version 12) is installed and usable. accel export PATH=~/android-sdk-linux/emulator:~/android-sdk-linux/tools:~/android-sdk-linux/platform-tools:$PATH xvfb-run --server-args="-screen 0 1600x1200x24" emulator -avd test-1 -verbose -show-kernel -gpu swiftshader -skip-adb-auth -ranchu -selinux permissive -memory 3072 >emulator.log & emulator.log looks okay, except it has no kernel messages; 'adb devices' shows no devices :(

https://tools.taskcluster.net/groups/WuC0r7RzSymy_eximaoMbA/tasks/WuC0r7RzSymy_eximaoMbA/runs/0/logs/public%2Flogs%2Flive.log [task 2018-05-07T01:09:31.841Z] 01:09:31 INFO - Running command: ['kvm-ok'] [task 2018-05-07T01:09:31.841Z] 01:09:31 INFO - Copy/paste: kvm-ok [task 2018-05-07T01:09:31.844Z] 01:09:31 INFO - INFO: /dev/kvm exists [task 2018-05-07T01:09:31.845Z] 01:09:31 INFO - KVM acceleration can be used [task 2018-05-07T01:09:31.845Z] 01:09:31 INFO - Return code: 0 This is based on a slightly-modified desktop1604test docker image running in privileged mode, on packet.net: so far, so good.

Very good news here: Tests running in kvm-accelerated emulator on packet.net. https://tools.taskcluster.net/groups/TdL5szt4QiS5L1ZE7H4FPw/tasks/TdL5szt4QiS5L1ZE7H4FPw/runs/0/logs/public%2Flogs%2Flive.log [task 2018-05-09T18:01:06.374Z] 18:01:06 INFO - Copy/paste: emulator -accel-check [task 2018-05-09T18:01:06.381Z] 18:01:06 INFO - accel: [task 2018-05-09T18:01:06.381Z] 18:01:06 INFO - 0 [task 2018-05-09T18:01:06.381Z] 18:01:06 INFO - KVM (version 12) is installed and usable. [task 2018-05-09T18:01:06.381Z] 18:01:06 INFO - accel [task 2018-05-09T18:01:06.381Z] 18:01:06 INFO - Return code: 0 [task 2018-05-09T18:01:39.737Z] 18:01:39 INFO - Running timeout 30 /builds/worker/workspace/build/android-sdk-linux/platform-tools/adb devices [task 2018-05-09T18:01:39.740Z] 18:01:39 INFO - List of devices attached [task 2018-05-09T18:01:39.740Z] 18:01:39 INFO - emulator-5554 device [task 2018-05-09T18:02:06.179Z] 18:02:06 INFO - 0 INFO SimpleTest START [task 2018-05-09T18:02:06.179Z] 18:02:06 INFO - 1 INFO TEST-START | dom/bindings/test/test_sequence_wrapping.html [task 2018-05-09T18:02:06.179Z] 18:02:06 INFO - 2 INFO TEST-OK | dom/bindings/test/test_sequence_wrapping.html | took 1108ms [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 3 INFO TEST-START | Shutdown [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 4 INFO Passed: 4 [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 5 INFO Failed: 0 [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 6 INFO Todo: 0 [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 7 INFO Mode: non-e10s [task 2018-05-09T18:02:06.180Z] 18:02:06 INFO - 8 INFO Slowest: 1108ms - /tests/dom/bindings/test/test_sequence_wrapping.html

Requirements: - install qemu-kvm package in docker image - run privileged: docker run --privileged -- otherwise /dev/kvm is not visible - ensure test user (worker:worker) has permissions for /dev/kvm -- had to chmod 666 /dev/kvm in run-task (cannot do that in Dockerfile...need a privileged context)