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(Updated April 10, 2016, 8:09 a.m.) Review request for mesos, Gilbert Song, Guangya Liu, and Jie Yu. Changes ------- Moved scratch related code to overlay.cpp file. Bugs: MESOS-4944 https://issues.apache.org/jira/browse/MESOS-4944 Repository: mesos Description ------- Improved overlay backend to make the rootfs writable. Diffs (updated) ----- docs/container-image.md db4b291498309d5c0bdbf38552b985c33f28e9a0 src/slave/containerizer/mesos/provisioner/backend.hpp c6cca81e287bb9a62e0390f96e1773841887a206 src/slave/containerizer/mesos/provisioner/backends/bind.hpp 9eda944e14f2b05f28620c2e40594ed4e7bab69e src/slave/containerizer/mesos/provisioner/backends/bind.cpp 9b9f0b9e99a0fc0e9bad8fb2dad41acdc0ca1da1 src/slave/containerizer/mesos/provisioner/backends/copy.hpp b62507f9fc757349d39f39a6654ddd69053bf0e7 src/slave/containerizer/mesos/provisioner/backends/copy.cpp f353c89806816e85bb27875ef5fa68d5c0eaf9ca src/slave/containerizer/mesos/provisioner/backends/overlay.hpp 85cc737438c88b355f37611bfde50dc80efab017 src/slave/containerizer/mesos/provisioner/backends/overlay.cpp 93892a75fe3ddd5c7b2a023b63f6d0fa83eeb97d src/slave/containerizer/mesos/provisioner/paths.hpp 2ea38ac3342e1ebb712a7bea8ebef1bdcf96e809 src/slave/containerizer/mesos/provisioner/paths.cpp 07581f6ac714485e9c743984a553bb6fb26756b7 src/slave/containerizer/mesos/provisioner/provisioner.cpp 8a4938ebe4e00779e88e7c538445e9ffd51202e2 src/tests/containerizer/provisioner_backend_tests.cpp d49204f220c6212f83c2adf5544d04b3386c8eb7 Diff: https://reviews.apache.org/r/45358/diff/ Testing ------- - make check - tested manually, with slave using overlay backend. Create a task with mesos containerizer, ubuntu docker image, with the command `mkdir -p /abc && touch /abc/def.txt`. - also tested manually with alpine image to verify overlay backend could support 1-layer images. Thanks, Shuai Lin