bolt k/v pairs are only valid for the life of a transaction.
This means the memory that the k/v pair is referencing may be invalid if
it is accessed outside of the transaction.
This can potentially cause a panic.
For reference: https://godoc.org/github.com/boltdb/bolt#hdr-Caveats
To fix this issue, unmarshal the stored data into volume meta before
closing the transaction.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 4876a9047ebfd66294d88482a1b4b24634a632e6
Component: engine
… and given where it was used, it should be quicker to create an empty
folder instead of passing potentially a big context with unrelated file.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: 3dd25b97902e064f43d56632d3a72768e36eecc5
Component: engine
This fix tries to fix the issue raised in 29486 where interrupted
`docker build` leaves some tmp files in `/var/lib/docker/tmp`.
With tmp file name prefixed with `/var/lib/docker/tmp/docker-builderXXXXXX`.
The reason for the issue is that in `MakeTarSumContext()`:
```
if err := chrootarchive.Untar(sum, root, nil); err != nil {
return nil, err
}
```
the `err` is shadowed and caused the clean up function in `defer func()`
not being called.
This fix fixes the issue.
This fix is tested manually, as was specified in 29486:
```
rm -rf /var/lib/docker/tmp
mkdir repro && cd repro
fallocate -l 300M bigfile
cat > Dockerfile <<EOF
FROM scratch
COPY ./bigfile /
EOF
docker build .
{Cancel}
ls -la /var/lib/docker/tmp
```
This fix fixes 29486.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 847564fa49b27af508a02a371583019482534d31
Component: engine
Previously, it was comparing against the driver name passed in by the
caller. This could lead to subtle issues when using plugins, like
"plugin" vs. "plugin:latest".
Also, remove "conflict:" prefix to improve the error message.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: 53d447c5d5c85d5595d5170411189c88a135a789
Component: engine
Ensures all known volumes (known b/c they are persisted to disk) have
their volume drivers refcounted properly.
In testing this, I found an issue with `--live-restore` (required since
currently the provided volume plugin doesn't keep state on restart)
where restorted plugins did not have a plugin client loaded causing a
panic when trying to use the plugin.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 6ef1060cd0acb847e06db890abb335faa837a9e2
Component: engine
In cases where there is high latency (ie, not-local network)
`waitExitOrRemoved` was not receiving events for short-lived containers.
This caused the client to hang while waiting for a notification that the
container has stopped.
This happens because `client.Events()` returns immediately and spins a
goroutine up to process events. The problem here is it returns before
the request to the events endpoint is even made.
Even without high-latency issues, there is no guarantee that the
goroutine is even scheduled by the time the function returns.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 47585996bf72bcfde9ef058522059bef352e83e0
Component: engine
the "docker swarm leave" command description
mentioned that the command can only be used
for workers, however, the command can also
be used for managers (using the `-f` / `--force`
option).
this patch removes the "(workers only)" part
of the command description.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: f89eee5d9d3c01bc6d498fcb1163ec199e6c3078
Component: engine
