1786.0.1 - Docker 18.05.0-ce has a bind mount bug that prevents containers with volumes from starting

[JTarasovic]

Issue Report

Bug

Docker 18.05.0-ce has a bind mount bug that prevents containers from starting.
Issue: moby/moby#37032
Fix: moby/moby#37031

Container Linux Version

$ cat /etc/os-release
NAME="Container Linux by CoreOS"
ID=coreos
VERSION=1786.0.1
VERSION_ID=1786.0.1
BUILD_ID=2018-05-23-1022
PRETTY_NAME="Container Linux by CoreOS 1786.0.1 (Rhyolite)"
ANSI_COLOR="38;5;75"
HOME_URL="https://coreos.com/"
BUG_REPORT_URL="https://issues.coreos.com"
COREOS_BOARD="amd64-usr"

Environment

What hardware/cloud provider/hypervisor is being used to run Container Linux?
AWS

Expected Behavior

kubernetes / kubelet managed containers w/ bind mounted volumes start

Actual Behavior

"Error": "linux mounts: Could not find source mount of /etc/coreos"

Reproduction Steps

docker run -it --rm --mount type=bind,source=/etc/coreos,target=/etc/coreos,bind-propagation=rslave busybox /bin/sh

Other Information

partial output of docker inspect for failing container-linux-update-agent container

         "State": {
            "Status": "created",
            "Running": false,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 0,
            "ExitCode": 128,
            "Error": "linux mounts: Could not find source mount of /etc/coreos",
            "StartedAt": "0001-01-01T00:00:00Z",
            "FinishedAt": "0001-01-01T00:00:00Z"
        },

            {
                "Type": "bind",
                "Source": "/etc/coreos",
                "Destination": "/etc/coreos",
                "Mode": "rslave",
                "RW": true,
                "Propagation": "rslave"
            },

[ajeddeloh]

I can repro this (thanks for the easy repro). Tested the fixed and confirmed it worked. Working on backporting this now.

[ajeddeloh]

Closed via coreos/coreos-overlay#3248 which should be in Alpha 1786.1.0, which should be released soon

[JTarasovic]

Thank you, all! That was hella quick.