`docker stats --no-stream` always print zero values.
```
$ docker stats --no-stream
CONTAINER CPU % MEM USAGE / LIMIT MEM %
NET I/O BLOCK I/O
7f4ef234ca8c 0.00% 0 B / 0 B 0.00%
0 B / 0 B 0 B / 0 B
f05bd18819aa 0.00% 0 B / 0 B 0.00%
0 B / 0 B 0 B / 0 B
```
This commit will let docker client wait until it gets correct stat
data before print it on screen.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Upstream-commit: ea86c30a4acd53ef626d4c53aaf8f91134173948
Component: engine
This PR fix the DockerSuite.TestBuildHistory test in #19425.
It changes the base image from busybox into 'minimalBaseImage()'
and changes the RUN in Dockerfile into LABEL, which greatly
reduces the executation time.
Since the test (DockerSuite.TestBuildHistory) is really about
testing docker history, not about RUN in Dockerfile, the
purpose of the test is not altered.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: d609de989f98760e9fca94438184b815fb905681
Component: engine
Make sure credentials are removed from the store at logout (not only
in the config file). Remove not needed error check and auth erasing
at login (auths aren't stored anywhere at that point).
Add regression test.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Upstream-commit: 0eccc3838e4aac5318e98dcbfbe2100e253462de
Component: engine
docker build is broken because it sends to the daemon the full
cliconfig file which has only Email(s). This patch retrieves all auth
configs from the credentials store.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Upstream-commit: 44152144ca766221e97fdaa5200fec3557a64f58
Component: engine
Retries after v1 fallbacks were added in #20411. The test still appears
to be flaky. There are two potential problems. The initial pull was not
protected against pulling from v1, so it could be giving us a different
hello-world image to compare against. Also, after experiencing a v1
fallback, we need to restore the original image before doing the next
pull, because otherwise the "Image is up to date for hello-world:latest"
message will not show up as expected.
See #17214.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: 0d270cadd4b65623b1f1ae02c4fe5bcc5f81fcd3
Component: engine
Concurrent uploads which share layers worked correctly as of #18353,
but unfortunately #18785 caused a regression. This PR removed the logic
that shares digests between different push sessions. This overlooked the
case where one session was waiting for another session to upload a
layer.
This commit adds back the ability to propagate this digest information,
using the distribution.Descriptor type because this is what is received
from stats and uploads, and also what is ultimately needed for building
the manifest.
Surprisingly, there was no test covering this case. This commit adds
one. It fails without the fix.
See recent comments on #9132.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: 5c99eebe81958a227dfaed1145840374ce50bbbb
Component: engine
This test is often failing on remote daemons. We tried many approaches
to fix it but none worked. In order to make the CI more reliable, this
will skip the test when running against a remote daemon (e.g. win2lin).
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: e80f86bce8f07122734cf4933e32ac82c9994d71
Component: engine
This removes the email prompt when you use docker login, and also removes the ability to register via the docker cli. Docker login, will strictly be used for logging into a registry server.
Signed-off-by: Ken Cochrane <kencochrane@gmail.com>
Upstream-commit: aee260d4eb3aa0fc86ee5038010b7bbc24512ae5
Component: engine
This change implements communication with an external credentials store,
ala git-credential-helper. The client falls back the plain text store,
what we're currently using, if there is no remote store configured.
It shells out to helper program when a credential store is
configured. Those programs can be implemented with any language as long as they
follow the convention to pass arguments and information.
There is an implementation for the OS X keychain in https://github.com/calavera/docker-credential-helpers.
That package also provides basic structure to create other helpers.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Upstream-commit: cf721c23e715e545eccf8484e145c2d18d6a6a23
Component: engine
During "COPY" or other tar unpack operations, a target/destination
parent dir might not exist and should be created with ownership of the
root in the right context (including remapped root when user namespaces
are enabled)
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Upstream-commit: 7a61b9ae425e5c100da2bb32b929031c6302b3fb
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
This will allow us to have a windows-to-linux CI, where the linux host
can be anywhere, connecting with TLS.
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: f4a1e3db998816e5fcb0df56c29519c488890464
Component: engine
