- Remove extraneous '-' in sudo note.
- Correct space formatting (minor).
- Simplify instructions for install EPEL and install with yum directly.
- Add `nodejs` to yum install list explicitly to match the comments -- more transparent for new users who might not be clear `npm` package also installs `nodejs`.
- Remove '--noprealloc` from MongoDB example as the option has been depcated since Mongo 2.6 and is now the default behaviour. See: http://docs.mongodb.org/manual/reference/program/mongod/
Signed-off-by: Charles Chan <charleswhchan@users.noreply.github.com>
Upstream-commit: 549c8ea96eb036d60e3c9eea1ed8eb2d817e885a
Component: engine
The docker volume ls -f dangling=true filter was
inverted; the filtered results actually returned all
non-dangling volumes.
This fixes the filter and adds some integration tests
to test the correct behavior.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 1cbf9047b3be1bee39a72e96808581ff3c312a6c
Component: engine
For now CLI `docker stats` will not block even if the container was
not running is because there is a 2s timeout setting when waiting for
the response.
I think why we hang there waiting for the container to run is because we
want to get the stats of container immediately when it starts running.
But it will block when use the API directly, for example
- curl
- Google Chrome plugin, Postman
- Firefox plugin, RESTClient
This patch keeps the feature that getting info immediately when container
starts running and in the meantime, it will not block when using the API
directrly.
Signed-off-by: Hu Keping <hukeping@huawei.com>
Upstream-commit: d9bf8163ad8579cf2ab9f55925f9ea5037e5b525
Component: engine
TL;DR: stop building static binary that may fail
Linker flag --unresolved-symbols=ignore-in-shared-libs was added
in commit 06d0843 two years ago for the static build case, presumably
to avoid dealing with problem of missing libraries.
For the record, this is what ld(1) man page says:
> --unresolved-symbols=method
> Determine how to handle unresolved symbols. There are four
> possible values for method:
> .........
> ignore-in-shared-libs
> Report unresolved symbols that come from regular object files,
> but ignore them if they come from shared libraries. This can
> be useful when creating a dynamic binary and it is known that
> all the shared libraries that it should be referencing are
> included on the linker's command line.
Here, the flag is not used for its purpose ("creating a dynamic binary")
and does more harm than good. Instead of complaining about missing symbols
as it should do if some libraries are missing from LIBS/LDFLAGS, it lets
ld create a binary with unresolved symbols, ike this:
$ readelf -s bundles/1.7.1/binary/docker-1.7.1 | grep -w UND
........
21029: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND dlopen
.........
Such binary is working just fine -- until code calls one of those
functions, then it crashes (for apparently no reason, i.e. it is
impossible to tell why from the diagnistics printed).
In other words, adding this flag allows to build a static binary
with missing libraries, hiding the problem from both a developer
(who forgot to add a library to #cgo: LDFLAGS -- I was one such
developer a few days ago when I was working on ploop graphdriver)
and from a user (who expects the binary to work without crashing,
and it does that until the code calls a function in one of those
libraries).
Removing the flag immediately unveils the problem (as it should):
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libsqlite3.a(sqlite3.o):
In function `unixDlError':
(.text+0x20971): undefined reference to `dlerror'
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libsqlite3.a(sqlite3.o):
In function `unixDlClose':
(.text+0x8814): undefined reference to `dlclose'
The problem is, gosqlite package says:
#cgo LDFLAGS: -lsqlite3
which is enough for dynamic linking, as indirect dependencies (i.e.
libraries required by libsqlite3.so) are listed in .so file and will be
resolved dynamically by ldd upon executing the binary.
For static linking though, one has to list all the required libraries,
both direct and indirect. For libraries with pkgconfig support the
list of required libraries can be obtained with pkg-config:
$ pkg-config --libs sqlite3 # dynamic linking case
-lsqlite3
$ pkg-config --libs --static sqlite3 # static case
-lsqlite3 -ldl -lpthread
It seems that all one has to do is to fix gosqlite this way:
-#cgo LDFLAGS: -lsqlite3
+#cgo pkg-config: sqlite3
Unfortunately, cmd/go doesn't know that it needs to pass --static
flag to pkg-config in case of static linking
(see https://github.com/golang/go/issues/12058).
So, for one, one has to do one of these things:
1. Patch sqlite.go like this:
-#cgo LDFLAGS: -lsqlite3
+#cgo pkg-config: --static sqlite3
(this is exactly what I do in goploop, see
https://github.com/kolyshkin/goploop/commit/e9aa072f51)
2. Patch sqlite.go like this:
-#cgo LDFLAGS: -lsqlite3
+#cgo LDFLAGS: -lsqlite3 -ldl -lpthread
(I would submit this patch to gosqlite but it seems that
https://code.google.com/p/gosqlite/ is deserted and not maintained,
and patching it here is not right as it is "vendored")
3. Explicitly add -ldl for the static link case.
This is what this patch does.
4. Fork sqlite to github and maintain it there. Personally I am not
ready for that, as I'm neither a Go expert nor gosqlite user.
Now, #3 doesn't look like a clear solution, but nevertheless it makes
the build much better than it was before.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Upstream-commit: 15aad5d3e6d97627345586e5ee92a896667bb33a
Component: engine
Calling runtime.Stack requires the buffer to be big enough to fit the
goroutines dump. If it's not big enough the dump will be truncated and
the value returned will be the same size as the buffer.
The code was changed to handle this situation and try again with a
bigger buffer. Each time the dump doesn't fit in the buffer its size is
doubled.
Signed-off-by: Cezar Sa Espinola <cezarsa@gmail.com>
Upstream-commit: e787296c75c15d1a4d32474432f674d6d58ee4c1
Component: engine
Fixed issues related to network subcommand tests
- "network" in exempted list of short help check
- Condition for exact test modified to meet experimental commands
- Sorting of commands done in flags_experimental
Signed-off-by: Kunal Kushwaha <kunal.kushwaha@gmail.com>
Upstream-commit: 44da5c3de2c763c4bc42a74051ad7a37adf1f553
Component: engine
Update and migrate existing tests to the `DockerHubPullSuite`. Most
tests were preserved, but refactored and made more exhaustive. One test
was deliberately removed (`TestPullVerified`) as it is unreliable and
that the feature was obsoleted by content trust.
Move all trust related tests to `docker_cli_pull_trusted_test.go`.
Move tests depending on a local registry to `docker_cli_pull_local_test.go`.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Upstream-commit: f324f4851f28edfd8dab82cd624a4ec1f01cd207
Component: engine
Add a `checker` package that adds some utility Checker implementation,
the first one being `checker.Contains`, as well as brining all go-check
provided Checker implementations in scope as a commodity.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Upstream-commit: c87cbd3862336fb01addff5d753ff7c8e0d50879
Component: engine
we changed the naming scheme of the release branch
Signed-off-by: Jessica Frazelle <acidburn@docker.com>
Upstream-commit: e38a9ecef6849304b6d961b24af16fbd1f4912d6
Component: engine
