We need to have labels applied even if a container is running in privileged
mode. On an tightly locked down SELinux system, this will cause running
without labels will cause SELinux to block privileged mode containers.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Upstream-commit: 3894773d6edf8127ddf5f811492a9b49673196e7
Component: engine
This generates an ID string for calls to Mount/Unmount, allowing drivers
to differentiate between two callers of `Mount` and `Unmount`.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 2b6bc294fc7f9e08a9091833b021b7d2a01ad2a6
Component: engine
Restore the 1.10 logic that will reset the restart manager's timeout or
backoff delay if a container executes longer than 10s reguardless of
exit status or policy.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: b6db56b5eba00c4e8ad7a6f6c5b018e15dc883eb
Component: engine
Currently if you restart docker daemon, all the containers with restart
policy `on-failure` regardless of its `RestartCount` will be started,
this will make daemon cost more extra time for restart.
This commit will stop these containers to do unnecessary start on
daemon's restart.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: 51e42e6ee01eb4b5c8c7678e2fc7be0f13ef6a68
Component: engine
This allows a user to specify explicitly to enable
automatic copying of data from the container path to the volume path.
This does not change the default behavior of automatically copying, but
does allow a user to disable it at runtime.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: b0ac69b67ef79c6c937f84bee3df20a1924ad334
Component: engine
This allows users to provide a FQDN as hostname or to use distinct hostname and
domainname parts. Depends on https://github.com/docker/libnetwork/pull/950
Signed-off-by: Tim Hockin <thockin@google.com>
Upstream-commit: 53c5de29217f9633117cb01ada180d1133d76737
Component: engine
Attach can hang forever if there is no data to send. This PR adds notification
of Attach goroutine about container stop.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: 7bb815e2960c97c5cc0624566ac51581bdd884ab
Component: engine
Correct creation of a non-existing WORKDIR during docker build to use
remapped root uid/gid on mkdir
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Upstream-commit: 799a6b94ee661022d66f88a009ff58f08eb5a2c3
Component: engine
Moving all strings to the errors package wasn't a good idea after all.
Our custom implementation of Go errors predates everything that's nice
and good about working with errors in Go. Take as an example what we
have to do to get an error message:
```go
func GetErrorMessage(err error) string {
switch err.(type) {
case errcode.Error:
e, _ := err.(errcode.Error)
return e.Message
case errcode.ErrorCode:
ec, _ := err.(errcode.ErrorCode)
return ec.Message()
default:
return err.Error()
}
}
```
This goes against every good practice for Go development. The language already provides a simple, intuitive and standard way to get error messages, that is calling the `Error()` method from an error. Reinventing the error interface is a mistake.
Our custom implementation also makes very hard to reason about errors, another nice thing about Go. I found several (>10) error declarations that we don't use anywhere. This is a clear sign about how little we know about the errors we return. I also found several error usages where the number of arguments was different than the parameters declared in the error, another clear example of how difficult is to reason about errors.
Moreover, our custom implementation didn't really make easier for people to return custom HTTP status code depending on the errors. Again, it's hard to reason about when to set custom codes and how. Take an example what we have to do to extract the message and status code from an error before returning a response from the API:
```go
switch err.(type) {
case errcode.ErrorCode:
daError, _ := err.(errcode.ErrorCode)
statusCode = daError.Descriptor().HTTPStatusCode
errMsg = daError.Message()
case errcode.Error:
// For reference, if you're looking for a particular error
// then you can do something like :
// import ( derr "github.com/docker/docker/errors" )
// if daError.ErrorCode() == derr.ErrorCodeNoSuchContainer { ... }
daError, _ := err.(errcode.Error)
statusCode = daError.ErrorCode().Descriptor().HTTPStatusCode
errMsg = daError.Message
default:
// This part of will be removed once we've
// converted everything over to use the errcode package
// FIXME: this is brittle and should not be necessary.
// If we need to differentiate between different possible error types,
// we should create appropriate error types with clearly defined meaning
errStr := strings.ToLower(err.Error())
for keyword, status := range map[string]int{
"not found": http.StatusNotFound,
"no such": http.StatusNotFound,
"bad parameter": http.StatusBadRequest,
"conflict": http.StatusConflict,
"impossible": http.StatusNotAcceptable,
"wrong login/password": http.StatusUnauthorized,
"hasn't been activated": http.StatusForbidden,
} {
if strings.Contains(errStr, keyword) {
statusCode = status
break
}
}
}
```
You can notice two things in that code:
1. We have to explain how errors work, because our implementation goes against how easy to use Go errors are.
2. At no moment we arrived to remove that `switch` statement that was the original reason to use our custom implementation.
This change removes all our status errors from the errors package and puts them back in their specific contexts.
IT puts the messages back with their contexts. That way, we know right away when errors used and how to generate their messages.
It uses custom interfaces to reason about errors. Errors that need to response with a custom status code MUST implementent this simple interface:
```go
type errorWithStatus interface {
HTTPErrorStatusCode() int
}
```
This interface is very straightforward to implement. It also preserves Go errors real behavior, getting the message is as simple as using the `Error()` method.
I included helper functions to generate errors that use custom status code in `errors/errors.go`.
By doing this, we remove the hard dependency we have eeverywhere to our custom errors package. Yes, you can use it as a helper to generate error, but it's still very easy to generate errors without it.
Please, read this fantastic blog post about errors in Go: http://dave.cheney.net/2014/12/24/inspecting-errors
Signed-off-by: David Calavera <david.calavera@gmail.com>
Upstream-commit: a793564b2591035aec5412fbcbcccf220c773a4c
Component: engine
Add `--restart` flag for `update` command, so we can change restart
policy for a container no matter it's running or stopped.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: ff3ea4c90f2ede5cccc6b49c4d2aad7201c91a4c
Component: engine
Currently, when running a container with --ipc=host, if /dev/mqueue is
a standard directory on the hos the daemon will bind mount it allowing
the container to create/modify files on the host.
This commit forces /dev/mqueue to always be of type mqueue except when
the user explicitely requested something to be bind mounted to
/dev/mqueue.
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Upstream-commit: f7d4abdc00d521509995da1070215c808fe0fd9c
Component: engine
mqueue can not be mounted on the host os and then shared into the container.
There is only one mqueue per mount namespace, so current code ends up leaking
the /dev/mqueue from the host into ALL containers. Since SELinux changes the
label of the mqueue, only the last container is able to use the mqueue, all
other containers will get a permission denied. If you don't have SELinux protections
sharing of the /dev/mqueue allows one container to interact in potentially hostile
ways with other containers.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Upstream-commit: ba38d58659cc155aebf89a2ea4cfc3cd7ba04a64
Component: engine
After exec driver run, container lock is lost, so we should lock
container when changing its state to `restarting`
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: 155714c59650a7b9b8f890f4d20c83ea9b80206b
Component: engine
Revert "Combine SetupWorkingDirectory for Linux and Windows"
This reverts commit ec31741ca186278ea60faf49f85087c493e78806.
Upstream-commit: 54320d8d187d8b33be4fd33cfb3f8e486c6c8d90
Component: engine
Currently if we exec a restarting container, client will fail silently,
and daemon will print error that container can't be found which is not a
very meaningful prompt to user.
This commit will stop user from exec a restarting container and gives
more explicit error message.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: 1d2208fed90da9ab72ded3b1c65bb2a71b66ce93
Component: engine
