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Subject [GitHub] [incubator-openwhisk] style95 edited a comment on issue #4430: Update docker client version to 18.06.3
Date Mon, 15 Apr 2019 10:21:44 GMT
style95 edited a comment on issue #4430: Update docker client version to 18.06.3
   With the assumption that we will move forward with 18.09 and just including 18.06 for the
deprecation period, docker-18.06 would add about 43MB(36 + 7.2 MB) of overhead.
   $ ll -h docker-18.06
   total 141M
   drwxrwxr-x 2 style95 style95 4.0K Feb 20 11:26 ./
   drwxr-xr-x 4 style95 style95 4.0K Apr 15 19:03 ../
   -rwxr-xr-x 1 style95 style95  36M Feb 20 11:26 docker*
   -rwxr-xr-x 1 style95 style95  26M Feb 20 11:26 docker-containerd*
   -rwxr-xr-x 1 style95 style95  15M Feb 20 11:26 docker-containerd-ctr*
   -rwxr-xr-x 1 style95 style95 4.0M Feb 20 11:26 docker-containerd-shim*
   -rwxr-xr-x 1 style95 style95  51M Feb 20 11:26 dockerd*
   -rwxr-xr-x 1 style95 style95 747K Feb 20 11:26 docker-init*
   -rwxr-xr-x 1 style95 style95 2.8M Feb 20 11:26 docker-proxy*
   -rwxr-xr-x 1 style95 style95 7.2M Feb 20 11:26 docker-runc*
   Let me clarify the issues.
   There are the following changes.
   ### Docker 1.12 -> 18.06 or higher
   `runc` no more use default(`/run/runc`) directory as a root directory.
   It uses `/run/docker/runtime-runc/moby`.
   ### Docker 18.06 -> 18.09
   The name of `runc` is changed from `docker-runc` to `runc`.
   IMHO, there are few options to have multiple versions of docker, but I think it would be
easier to configure the version at the deployment time.
   For example, we can have both versions of docker binaries in the invoker as @markusthoemmes
   It will have two binaries, `docker-runc` and just `runc`.
   Based on the configuration, `DockerClient(RuncClient)` will selectively look for one of
   (Currently, it is hardcoded to `/usr/bin/docker-runc`)
   ### Keeping docker-1.12
   Besides of the above things, If we want to keep docker-1.12, we need to differentiate the
ansible script based on the version flag as well.
   The mounting directory for `runc` will vary between `/run/runc` and `/run/docker/runtime-runc/moby`.

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