Signed-off-by: John Howard <jhoward@microsoft.com>
Working directory processing was handled differently for Hyper-V and Windows-Server containers, as annotated in the builder documentation (updated in this PR). For Hyper-V containers, the working directory set by WORKDIR was not created. This PR makes Hyper-V containers work the same as Windows Server containers (and the same as Linux).
Example (only applies to Hyper-V containers, so not reproducible under CI environment)
Dockerfile:
FROM microsoft/nanoserver
WORKDIR c:\installer
ENV GOROOT=c:\installer
ADD go.exe .
RUN go --help
Running on Windows Server 2016, using docker master without this change, but with daemon set to --exec-opt isolation=hyperv as it would be for Client operating systems.
PS E:\go\src\github.com\docker\docker> dockerd -g c:\control --exec-opt isolation=hyperv
time="2017-02-01T15:48:09.657286100-08:00" level=info msg="Windows default isolation mode: hyperv"
time="2017-02-01T15:48:09.662720900-08:00" level=info msg="[graphdriver] using prior storage driver: windowsfilter"
time="2017-02-01T15:48:10.011588000-08:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
time="2017-02-01T15:48:10.016655800-08:00" level=info msg="Loading containers: start."
time="2017-02-01T15:48:10.460820000-08:00" level=info msg="Loading containers: done."
time="2017-02-01T15:48:10.509859600-08:00" level=info msg="Daemon has completed initialization"
time="2017-02-01T15:48:10.509859600-08:00" level=info msg="Docker daemon" commit=3c64061 graphdriver=windowsfilter version=1.14.0-dev
First with no explicit isolation:
PS E:\docker\build\unifyworkdir> docker build --no-cache .
Sending build context to Docker daemon 10.1 MB
Step 1/5 : FROM microsoft/nanoserver
---> 89b8556cb9ca
Step 2/5 : WORKDIR c:\installer
---> 7e0f41d08204
Removing intermediate container 236c7802042a
Step 3/5 : ENV GOROOT c:\installer
---> Running in 8ea5237183c1
---> 394b70435261
Removing intermediate container 8ea5237183c1
Step 4/5 : ADD go.exe .
---> e47401a1745c
Removing intermediate container 88dcc28e74b1
Step 5/5 : RUN go --help
---> Running in efe90e1b6b8b
container efe90e1b6b8b76586abc5c1dc0e2797b75adc26517c48733d90651e767c8463b encountered an error during CreateProcess: failure in a Windows system call: The directory name is invalid. (0x10b) extra info: {"ApplicationName":"","CommandLine":"cmd /S /C go --help","User":"","WorkingDirectory":"C:\\installer","Environment":{"GOROOT":"c:\\installer"},"EmulateConsole":false,"CreateStdInPipe":true,"CreateStdOutPipe":true,"CreateStdErrPipe":true,"ConsoleSize":[0,0]}
PS E:\docker\build\unifyworkdir>
Then forcing process isolation:
PS E:\docker\build\unifyworkdir> docker build --isolation=process --no-cache .
Sending build context to Docker daemon 10.1 MB
Step 1/5 : FROM microsoft/nanoserver
---> 89b8556cb9ca
Step 2/5 : WORKDIR c:\installer
---> 350c955980c8
Removing intermediate container 8339c1e9250c
Step 3/5 : ENV GOROOT c:\installer
---> Running in bde511c5e3e0
---> b8820063b5b6
Removing intermediate container bde511c5e3e0
Step 4/5 : ADD go.exe .
---> e4ac32f8902b
Removing intermediate container d586e8492eda
Step 5/5 : RUN go --help
---> Running in 9e1aa235af5f
Cannot mkdir: C:\installer is not a directory
PS E:\docker\build\unifyworkdir>
Now compare the same results after this PR. Again, first with no explicit isolation (defaulting to Hyper-V containers as that's what the daemon it set to) - note it now succeeds 😄
PS E:\docker\build\unifyworkdir> docker build --no-cache .
Sending build context to Docker daemon 10.1 MB
Step 1/5 : FROM microsoft/nanoserver
---> 89b8556cb9ca
Step 2/5 : WORKDIR c:\installer
---> 4f319f301c69
Removing intermediate container 61b9c0b1ff6f
Step 3/5 : ENV GOROOT c:\installer
---> Running in c464a1d612d8
---> 96a26ab9a7b5
Removing intermediate container c464a1d612d8
Step 4/5 : ADD go.exe .
---> 0290d61faf57
Removing intermediate container dc5a085fffe3
Step 5/5 : RUN go --help
---> Running in 60bd56042ff8
Go is a tool for managing Go source code.
Usage:
go command [arguments]
The commands are:
build compile packages and dependencies
clean remove object files
doc show documentation for package or symbol
env print Go environment information
fix run go tool fix on packages
fmt run gofmt on package sources
generate generate Go files by processing source
get download and install packages and dependencies
install compile and install packages and dependencies
list list packages
run compile and run Go program
test test packages
tool run specified go tool
version print Go version
vet run go tool vet on packages
Use "go help [command]" for more information about a command.
Additional help topics:
c calling between Go and C
buildmode description of build modes
filetype file types
gopath GOPATH environment variable
environment environment variables
importpath import path syntax
packages description of package lists
testflag description of testing flags
testfunc description of testing functions
Use "go help [topic]" for more information about that topic.
The command 'cmd /S /C go --help' returned a non-zero code: 2
And the same with forcing process isolation. Also works 😄
PS E:\docker\build\unifyworkdir> docker build --isolation=process --no-cache .
Sending build context to Docker daemon 10.1 MB
Step 1/5 : FROM microsoft/nanoserver
---> 89b8556cb9ca
Step 2/5 : WORKDIR c:\installer
---> f423b9cc3e78
Removing intermediate container 41330c88893d
Step 3/5 : ENV GOROOT c:\installer
---> Running in 0b99a2d7bf19
---> e051144bf8ec
Removing intermediate container 0b99a2d7bf19
Step 4/5 : ADD go.exe .
---> 7072e32b7c37
Removing intermediate container a7a97aa37fd1
Step 5/5 : RUN go --help
---> Running in 7097438a54e5
Go is a tool for managing Go source code.
Usage:
go command [arguments]
The commands are:
build compile packages and dependencies
clean remove object files
doc show documentation for package or symbol
env print Go environment information
fix run go tool fix on packages
fmt run gofmt on package sources
generate generate Go files by processing source
get download and install packages and dependencies
install compile and install packages and dependencies
list list packages
run compile and run Go program
test test packages
tool run specified go tool
version print Go version
vet run go tool vet on packages
Use "go help [command]" for more information about a command.
Additional help topics:
c calling between Go and C
buildmode description of build modes
filetype file types
gopath GOPATH environment variable
environment environment variables
importpath import path syntax
packages description of package lists
testflag description of testing flags
testfunc description of testing functions
Use "go help [topic]" for more information about that topic.
The command 'cmd /S /C go --help' returned a non-zero code: 2
PS E:\docker\build\unifyworkdir>
Upstream-commit: f42033ba9484ab31611bb1e4a0416beb3aa956da
Component: engine
This fix fixes issue raised in 29492 where it was not
possible to specify a default `--default-shm-size` in daemon
configuration for each `docker run``.
The flag `--default-shm-size` which is reloadable, has been
added to the daemon configuation.
Related docs has been updated.
This fix fixes 29492.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: db575ef626e8b2660750cbede6b19e951a3b4341
Component: engine
Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
use secret store interface instead of embedded secret data into container
Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
Upstream-commit: bebd472e40cae91b548e983872a2665a5836ba43
Component: engine
Fixes#22564
When an error occurs on mount, there should not be any call later to
unmount. This can throw off refcounting in the underlying driver
unexpectedly.
Consider these two cases:
```
$ docker run -v foo:/bar busybox true
```
```
$ docker run -v foo:/bar -w /foo busybox true
```
In the first case, if mounting `foo` fails, the volume driver will not
get a call to unmount (this is the incorrect behavior).
In the second case, the volume driver will not get a call to unmount
(correct behavior).
This occurs because in the first case, `/bar` does not exist in the
container, and as such there is no call to `volume.Mount()` during the
`create` phase. It will error out during the `start` phase.
In the second case `/bar` is created before dealing with the volume
because of the `-w`. Because of this, when the volume is being setup
docker will try to copy the image path contents in the volume, in which
case it will attempt to mount the volume and fail. This happens during
the `create` phase. This makes it so the container will not be created
(or at least fully created) and the user gets the error on `create`
instead of `start`. The error handling is different in these two phases.
Changed to only send `unmount` if the volume is mounted.
While investigating the cause of the reported issue I found some odd
behavior in unmount calls so I've cleaned those up a bit here as well.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 9a2d0bc3adc0c21c82cd1974be45ea0449f9f224
Component: engine
- use /secrets for swarm secret create route
- do not specify omitempty for secret and secret reference
- simplify lookup for secret ids
- do not use pointer for secret grpc conversion
Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
Upstream-commit: 189f89301e0abfee32447f2ca23dacd3a96de06d
Component: engine
- fix lint issues
- use errors pkg for wrapping errors
- cleanup on error when setting up secrets mount
- fix erroneous import
- remove unneeded switch for secret reference mode
- return single mount for secrets instead of slice
Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
Upstream-commit: 857e60c2f943a09e3ec0ac0f236821b797935900
Component: engine
For `--mount type=tmpfs,target=/foo,readonly`, the `readonly` flag was just ignored.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Upstream-commit: 3e3d3c8086237f4938e3e13561dbc1d41b5c617b
Component: engine
This moves the types for the `engine-api` repo to the existing types
package.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: 91e197d614547f0202e6ae9b8a24d88ee131d950
Component: engine
This will add a label to any volume that is shared into a container.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Upstream-commit: 5a277c8a4a9107f18211aabd6e332dbafb1a8469
Component: engine
"--restart" and "--rm" are conflict options, if a container is started
with AutoRemove flag, we should forbid the update action for its Restart
Policy.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: 4754c64ab5b5bf5ae6f8a3040606296910e6cb19
Component: engine
The memory should always be smaller than memoryswap,
we should error out with message that user know how
to do rather than just an invalid argument error if
user update the memory limit bigger than already set
memory swap.
Signed-off-by: Lei Jitang <leijitang@huawei.com>
Upstream-commit: 92394785fa3e55b19402fc762c030d28b36b6cfc
Component: engine
SELinux labeling should be disabled when using --privileged mode
/etc/hosts, /etc/resolv.conf, /etc/hostname should not be relabeled if they
are volume mounted into the container.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Upstream-commit: c3dd6074b0f07cd7e57d677cc06b4c57a302a02f
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
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
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
Revert "Combine SetupWorkingDirectory for Linux and Windows"
This reverts commit ec31741ca186278ea60faf49f85087c493e78806.
Upstream-commit: 54320d8d187d8b33be4fd33cfb3f8e486c6c8d90
Component: engine
dockerinit has been around for a very long time. It was originally used
as a way for us to do configuration for LXC containers once the
container had started. LXC is no longer supported, and /.dockerinit has
been dead code for quite a while. This removes all code and references
in code to dockerinit.
Signed-off-by: Aleksa Sarai <asarai@suse.com>
Upstream-commit: 4357ed4a7363a1032edf93cf03232953c805184f
Component: engine
https://github.com/docker/libnetwork/pull/810 provides the more complete
solution for moving the Port-mapping ownership away from endpoint and
into Sandbox. But, this PR makes the best use of existing libnetwork
design and get a step closer to the gaol.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Upstream-commit: e38463b2779f455b4173171d5a1fdb115180a7e9
Component: engine
- Currently it is being save upfront...
Signed-off-by: Alessandro Boch <aboch@docker.com>
Upstream-commit: 733245b2e7517b88cdfb188f9d8418f29bca6338
Component: engine
