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(Updated Aug. 1, 2016, 5:22 p.m.) Review request for Aurora, Jie Yu, Maxim Khutornenko, and Stephan Erb. Changes ------- rebase on top of Mesos 1.0.0 upgrade changes, fix broken aurora config. Maxim, Stephan, these changes now should be good for review. Repository: aurora Description ------- This changes the approach to launching tasks with filesystem images in the unified containerizer. Instead of adding an `Image` to the `MesosContainer`, we instead add the task filesystem as a `Volume` with an associated image. This image is mounted in the mesos directory under the `taskfs` path. The executor, on start up does the following: 1. Creates user/group under the taskfs root. 2. `pivot_root`s into the taskfs, while bind mounting the sandbox under that root as well as mounting procfs. 3. From there, task execution is essentially unchanged minus some slight changes to the environment depending on whether we're running in a pivoted root. Diffs (updated) ----- api/src/main/thrift/org/apache/aurora/gen/api.thrift 1d66208490aff6ea8af4c737845fa2cf13617529 examples/vagrant/upstart/aurora-scheduler.conf 954ddb48e923e0a2a29c415975c4f69afcad37b5 src/main/java/org/apache/aurora/scheduler/mesos/MesosTaskFactory.java f9b1c7cf30f93336fb850da09c1f2b7178cbdc17 src/main/python/apache/aurora/executor/bin/thermos_executor_main.py c5159314543cba15ac5e525ad0c31dedd398f8bf src/main/python/apache/aurora/executor/common/sandbox.py 6d8b7f58b639a60cc5a0c0c9ef98dfaaa8a64486 src/main/python/apache/aurora/executor/thermos_task_runner.py 3896e3841562600379705dbf78a6f62728246348 src/main/python/apache/thermos/core/BUILD 1094664e112cc71af37835f32037e9eb6d047202 src/main/python/apache/thermos/core/process.py 1791b5ff9a36eef7470bef9a6ebbafaf0ab05ca3 src/main/python/apache/thermos/core/runner.py fe971edaa2448afaf0fc342e11bc370de96ef5e4 src/main/python/apache/thermos/runner/thermos_runner.py 0d06e8e2ac78d26ba8f63744853eb5ce3f6aced6 src/test/java/org/apache/aurora/scheduler/mesos/MesosTaskFactoryImplTest.java bb8a849717a6ca3328ad4638acff5cc44ddd6ac9 src/test/python/apache/aurora/executor/common/test_sandbox.py 63f46e25bdd6fa387dd64975d7b95ee2659f5874 src/test/python/apache/thermos/core/test_process.py 77f644c09116266ce02479b9a80403aa68767bd6 src/test/sh/org/apache/aurora/e2e/Dockerfile 1b91f02725c1a6762cda2aaa587456341df4ba5a src/test/sh/org/apache/aurora/e2e/Dockerfile.netcat PRE-CREATION src/test/sh/org/apache/aurora/e2e/http/http_example.aurora bf6ef69401782d6c65a2d72e9270e52d1ad9fb9f src/test/sh/org/apache/aurora/e2e/http/http_example_bad_healthcheck.aurora edeafbea288c95c19c82aede09717840b569528d src/test/sh/org/apache/aurora/e2e/http/http_example_updated.aurora 9569eec2a32e0ea5212517c0082fc906036d1e57 src/test/sh/org/apache/aurora/e2e/run-server.sh PRE-CREATION src/test/sh/org/apache/aurora/e2e/test_end_to_end.sh 47bd94d1ce2aeffaefb67ac8325fc2f1d21c934c Diff: https://reviews.apache.org/r/47853/diff/ Testing ------- Lots of manual testing, e2e tests, etc. I didn't add much coverage on the thermos side of things because it seemed like this was better served by the e2e tests than by doing a bunch of subprocess.check_call mocking. On the e2e front I created a new Dockerfile that sets up a much slimmer filesystem image that explicitly does not include python to ensure that the executor's filesystem is truly isolated. Thanks, Joshua Cohen
