LCOW: Multi Stage Dockerfile build fails

[mrdaemon]

Expected behavior

Building a multi-stage Dockerfile with COPY --from=first_stage /source . should work

Actual behavior

The COPY instruction fails with:

COPY failed: failed to open file /tmp/237b384ab94183ddddb5e0014aa40adbee8fd43dd2e69aa182f9af22b7f7d858-mount/source: invalid arguments

Information

Diagnostic ID: C8876D51-C0BD-4084-ABCC-EC253699359C/2017-11-11_04-17-18

Docker version:

Client:
 Version:      17.11.0-ce-rc3
 API version:  1.34
 Go version:   go1.8.4
 Git commit:   5b4af4f
 Built:        Wed Nov  8 03:03:30 2017
 OS/Arch:      windows/amd64

Server:
 Version:      17.11.0-ce-rc3
 API version:  1.34 (minimum version 1.24)
 Go version:   go1.8.5
 Git commit:   5b4af4f
 Built:        Wed Nov  8 03:13:48 2017
 OS/Arch:      windows/amd64
 Experimental: true

Running on Windows 10 Enterprise Version 1709 (Fall Creator's Update)
LCOW is enabled.

Steps to reproduce the behavior

1. Setup a multi stage Dockerfile with FROM image AS builder as the first stage
2. In the second stage FROM image attempt to copy a file from the first stage using COPY --from=builder /source .
3. Witness the failure documented above

An example of such a Dockerfile can be found here

[mrdaemon]

Still occurs as of edge channel build17.11.0-ce-rc4-win39 14244 e557194

[vsaroopchand]

I am facing the same issue on edge channel with multi-stage builds and now pushes

The push refers to repository [docker.io/[my-user]/[my-container]
61f0b45827ae: Pushing [==================================================>] 39.85MB/39.85MB
f9881d507c7a: Pushing [==================================================>] 103.8MB/103.8MB
dedc51be25b9: Pushing [==================================================>] 73.4MB/73.4MB
529bfbd63bb7: Retrying in 1 second
6bbd1f364d24: Retrying in 1 second
a75caa09eb1f: Retrying in 5 seconds
open \tmp\3e763ca817365693443c3ca4318058cb3153ea6dd0487b1169a618103b15286b-mount\app\Common.dll: The system cannot find the path specified.

Any updates on this issue?

[mrdaemon]

Still happens as of edge channel build 17.11.0-ce-win40 (14328), only now it also hangs for a while in the previous intermediate container that sets WORKDIR.

[rn]

It's a known issue and there are several other things which don't work yet around build with LCOW:
microsoft/opengcs#169
microsoft/opengcs#168
microsoft/opengcs#156

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