progressreader.Broadcaster becomes broadcaster.Buffered and
broadcastwriter.Writer becomes broadcaster.Unbuffered.
The package broadcastwriter is thus renamed to broadcaster.
Signed-off-by: Tibor Vass <tibor@docker.com>
Implement basic interfaces to write custom routers that can be plugged
to the server. Remove server coupling with the daemon.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Although having a request ID available throughout the codebase is very
valuable, the impact of requiring a Context as an argument to every
function in the codepath of an API request, is too significant and was
not properly understood at the time of the review.
Furthermore, mixing API-layer code with non-API-layer code makes the
latter usable only by API-layer code (one that has a notion of Context).
This reverts commit de41640435, reversing
changes made to 7daeecd42d.
Signed-off-by: Tibor Vass <tibor@docker.com>
Conflicts:
api/server/container.go
builder/internals.go
daemon/container_unix.go
daemon/create.go
This reverts commit ff92f45be4, reversing
changes made to 80e31df3b6.
Reverting to make the next revert easier.
Signed-off-by: Tibor Vass <tibor@docker.com>
Use `pkg/discovery` to provide nodes discovery between daemon instances.
The functionality is driven by two different command-line flags: the
experimental `--cluster-store` (previously `--kv-store`) and
`--cluster-advertise`. It can be used in two ways by interested
components:
1. Externally by calling the `/info` API and examining the cluster store
field. The `pkg/discovery` package can then be used to hit the same
endpoint and watch for appearing or disappearing nodes. That is the
method that will for example be used by Swarm.
2. Internally by using the `Daemon.discoveryWatcher` instance. That is
the method that will for example be used by libnetwork.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Avoid creating a global context object that will be used while the daemon is running.
Not only this object won't ever be garbage collected, but it won't ever be used for anything else than creating other contexts in each request. I think it's a bad practive to have something like this sprawling aroud the code.
This change removes that global object and initializes a context in the cases we don't have already one, like shutting down the server.
This also removes a bunch of context arguments from functions that did nothing with it.
Signed-off-by: David Calavera <david.calavera@gmail.com>
This PR adds a "request ID" to each event generated, the 'docker events'
stream now looks like this:
```
2015-09-10T15:02:50.000000000-07:00 [reqid: c01e3534ddca] de7c5d4ca927253cf4e978ee9c4545161e406e9b5a14617efb52c658b249174a: (from ubuntu) create
```
Note the `[reqID: c01e3534ddca]` part, that's new.
Each HTTP request will generate its own unique ID. So, if you do a
`docker build` you'll see a series of events all with the same reqID.
This allow for log processing tools to determine which events are all related
to the same http request.
I didn't propigate the context to all possible funcs in the daemon,
I decided to just do the ones that needed it in order to get the reqID
into the events. I'd like to have people review this direction first, and
if we're ok with it then I'll make sure we're consistent about when
we pass around the context - IOW, make sure that all funcs at the same level
have a context passed in even if they don't call the log funcs - this will
ensure we're consistent w/o passing it around for all calls unnecessarily.
ping @icecrime @calavera @crosbymichael
Signed-off-by: Doug Davis <dug@us.ibm.com>
- Print the mount table as in /proc/self/mountinfo
- Do not exit prematurely when one of the ipc mounts doesn't exist.
- Do not exit prematurely when one of the ipc mounts cannot be unmounted.
- Add a unit test to see if the cleanup really works.
- Use syscall.MNT_DETACH to cleanup mounts after a crash.
- Unmount IPC mounts when the daemon unregisters an old running container.
Signed-off-by: David Calavera <david.calavera@gmail.com>
- Add unit tests to make sure the functionality is correct.
- Add FilterByDriver to allow filtering volumes by driver, for future
`volume ls` filtering and whatnot.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Using @mavenugo's patch for enabling the libcontainer pre-start hook to
be used for network namespace initialization (correcting the conflict
with user namespaces); updated the boolean check to the more generic
SupportsHooks() name, and fixed the hook state function signature.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
This is the first step in converting out static strings into well-defined
error types. This shows just a few examples of it to get a feel for how things
will look. Once we agree on the basic outline we can then work on converting
the rest of the code over.
Signed-off-by: Doug Davis <dug@us.ibm.com>
Changes include :
* libnetwork support for userns
* driver api change to have 1 interface per endpoint
Signed-off-by: Madhu Venugopal <madhu@docker.com>
This changeset creates /dev/shm and /dev/mqueue mounts for each container under
/var/lib/containers/<id>/ and bind mounts them into the container. When --ipc:container<id/name>
is used, then the /dev/shm and /dev/mqueue of the ipc container are used instead of creating
new ones for the container.
Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
(cherry picked from commit d88fe447df)
Allow to set the signal to stop a container in `docker run`:
- Use `--stop-signal` with docker-run to set the default signal the container will use to exit.
Signed-off-by: David Calavera <david.calavera@gmail.com>
- some method names were changed to have a 'Locking' suffix, as the
downcased versions already existed, and the existing functions simply
had locks around the already downcased version.
- deleting unused functions
- package comment
- magic numbers replaced by golang constants
- comments all over
Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>
This changeset creates /dev/shm and /dev/mqueue mounts for each container under
/var/lib/containers/<id>/ and bind mounts them into the container. When --ipc:container<id/name>
is used, then the /dev/shm and /dev/mqueue of the ipc container are used instead of creating
new ones for the container.
Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Signed-off-by: Stefan J. Wernli <swernli@microsoft.com>
Windows: add support for images stored in alternate location.
Signed-off-by: Stefan J. Wernli <swernli@microsoft.com>
sysinfo struct was initialized at daemon startup to make sure
kernel configs such as device cgroup are present and error out if not.
The struct was embedded in daemon struct making impossible to detect
if some system config is changed at daemon runtime (i.e. someone
umount the memory cgroup). This leads to container's starts failure if
some config is changed at daemon runtime.
This patch moves sysinfo out of daemon and initilize and check it when
needed (daemon startup, containers creation, contaienrs startup for
now).
Signed-off-by: Antonio Murdaca <runcom@linux.com>
(cherry picked from commit 472b6f66e03f9a85fe8d23098dac6f55a87456d8)
TL;DR: check for IsExist(err) after a failed MkdirAll() is both
redundant and wrong -- so two reasons to remove it.
Quoting MkdirAll documentation:
> MkdirAll creates a directory named path, along with any necessary
> parents, and returns nil, or else returns an error. If path
> is already a directory, MkdirAll does nothing and returns nil.
This means two things:
1. If a directory to be created already exists, no error is returned.
2. If the error returned is IsExist (EEXIST), it means there exists
a non-directory with the same name as MkdirAll need to use for
directory. Example: we want to MkdirAll("a/b"), but file "a"
(or "a/b") already exists, so MkdirAll fails.
The above is a theory, based on quoted documentation and my UNIX
knowledge.
3. In practice, though, current MkdirAll implementation [1] returns
ENOTDIR in most of cases described in #2, with the exception when
there is a race between MkdirAll and someone else creating the
last component of MkdirAll argument as a file. In this very case
MkdirAll() will indeed return EEXIST.
Because of #1, IsExist check after MkdirAll is not needed.
Because of #2 and #3, ignoring IsExist error is just plain wrong,
as directory we require is not created. It's cleaner to report
the error now.
Note this error is all over the tree, I guess due to copy-paste,
or trying to follow the same usage pattern as for Mkdir(),
or some not quite correct examples on the Internet.
[v2: a separate aufs commit is merged into this one]
[1] https://github.com/golang/go/blob/f9ed2f75/src/os/path.go
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
There are several bug reports on this error happening, and error is
not helpful unless you read the code. Google brings up removing
the repositories.btrfs file.
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Replaced github.com/docker/libcontainer with
github.com/opencontainers/runc/libcontaier.
Also I moved AppArmor profile generation to docker.
Main idea of this update is to fix mounting cgroups inside containers.
After updating docker on CI we can even remove dind.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
This adds an event loop for running a GC cleanup for exec command
references that are on the daemon. These cannot be cleaned up
immediately because processes may need to get the exit status of the
exec command but it should not grow out of bounds. The loop is set to a
default 5 minute interval to perform cleanup.
It should be safe to perform this cleanup because unless the clients are
remembering the exec id of the process they launched they can query for
the status and see that it has exited. If they don't save the exec id
they will have to do an inspect on the container for all exec instances
and anything that is not live inside that container will not be returned
in the container inspect.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
libnetwork host, none and bridge driver initialization is incorrectly
disabled if the daemon flag --bridge=none. The expected behavior of
setting --bridge as none is to disable the bridge driver alone and let
all other modes to be operational.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
If no Mtu value is provided to the docker daemon, get the mtu from the
default route's interface. If there is no default route, default to a
mtu of 1500.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
When the daemon is going down trigger immediate
garbage collection of libnetwork resources deleted
like namespace path since there will be no way to
remove them when the daemon restarts.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Fixes a regression from the volumes refactor where the vfs graphdriver
was setting labels for volumes to `s0` so that they can both be written
to by the container and shared with other containers.
When moving away from vfs this was never re-introduced.
Since this needs to happen regardless of volume driver, this is
implemented outside of the driver.
Fixes issue where `z` and `Z` labels are not set for bind-mounts.
Don't lock while creating volumes
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Signed by all authors:
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Signed-off-by: David Calavera <david.calavera@gmail.com>
Signed-off-by: Jeff Lindsay <progrium@gmail.com>
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Signed-off-by: Luke Marsden <luke@clusterhq.com>
Signed-off-by: David Calavera <david.calavera@gmail.com>
- Updated Dockerfile to satisfy libnetwork GOPATH requirements.
- Reworked daemon to allocate network resources using libnetwork.
- Reworked remove link code to also update network resources in libnetwork.
- Adjusted the exec driver command population to reflect libnetwork design.
- Adjusted the exec driver create command steps.
- Updated a few test cases to reflect the change in design.
- Removed the dns setup code from docker as resolv.conf is entirely managed
in libnetwork.
- Integrated with lxc exec driver.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
- noplog driver pkg for '--log-driver=none' (null object pattern)
- centralized factory for log drivers (instead of case/switch)
- logging drivers registers themselves to factory upon import
(easy plug/unplug of drivers in daemon/logdrivers.go)
- daemon now doesn't start with an invalid log driver
- Name() method of loggers is actually now their cli names (made it useful)
- generalized Read() logic, made it unsupported except json-file (preserves
existing behavior)
Spotted some duplication code around processing of legacy json-file
format, didn't touch that and refactored in both places.
Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
Add handler for SIGUSR1 based on feedback regarding when to dump
goroutine stacks. This will also dump goroutine stack traces on SIGQUIT
followed by a hard-exit from the daemon.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
The lxc code here is doing the exact same thing on calling
execdriver.Terminate, so let's just use that.
Also removes some dead comments originally introduced
50144aeb42 but no longer relevant since we
have restart policies.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Two main things
- Create a real struct Info for all of the data with the proper types
- Add test for REST API get info
Signed-off-by: Hu Keping <hukeping@huawei.com>
Updates most of the instances of HTTP urls in the engine's
comments. Does not account for any use in the code itself,
documentation, contrib, or project files.
Signed-off-by: Eric Windisch <eric@windisch.us>
This makes `registry.Service` a first class type and does not use jobs
to interact with this type.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This has a few hacks in it but it ensures that the bridge driver does
not use global state in the mappers, atleast as much as possible at this
point without further refactoring. Some of the exported fields are
hacks to handle the daemon port mapping but this results in a much
cleaner approach and completely remove the global state from the mapper
and allocator.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fixes#10958 by moving utils.daemon to pkg.pidfile.
Test cases were also added.
Updated the daemon to use the new pidfile.
Signed-off-by: Rick Wieman <git@rickw.nl>
When the deamon starts up with log level set to INFO it will show something
like this:
```
INFO[0000] Loading containers: start.
................................................................
INFO[0000] Loading containers: done.
```
where the dots represent containers in the system.
When you run with log level set to "error" it will still show the dots
w/o the "Loading..." lines before and after which looks really odd.
This PR will fix it so that the dots are only shown IFF the "Loading..."
lines are also shown
Signed-off-by: Doug Davis <dug@us.ibm.com>
Currently the daemon will not stop on error because the serve API job is
blocking the channel wait for daemon init. A better way is to run the
blocking serve API job as a goroutine and make sure that error
notification gets back to the main daemon thread (using the already
existing channel) so that clean shutdown can occur on error.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
In several cases graphdriver were just returning the low-level syscall
error and that was making it all the way up to the daemon logs and in
many cases was difficult to tell it was even coming from the graphdriver
at all.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Previously on error either from the daemon or from the api it is just
exiting with exit status 1 but not performing a shutdown.
This can produce insconsistent state depending on where the error came
from.
This makes sure that before we exit on error that the engine gets fully
shutdown.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
NetworkManager updates resolve.conf by replacing the current file
with an updated one. This change enables docker to listen for these
events.
Signed-off-by: Sami Wagiaalla <swagiaal@redhat.com>
Fixes newly introduced error flow from daemon.Get() in the link setup
code. Also added more detail to daemon.Get() comments for clarity.
Added test to test the bogus container link codepath.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Fixes#9629#9768
A couple of issues:
1) Volume config is not restored if we couldn't find it with the graph
driver, but bind-mounts would never be found by the graph driver since
they aren't in that dir
2) container volumes were only being restored if they were found in the
volumes repo, but volumes created by old daemons wouldn't be in the
repo until the container is at least started.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Addresses #5811
This cleans up an error in the logic which removes localhost resolvers
from the host resolv.conf at container creation start time. Specifically
when the determination is made if any nameservers are left after
removing localhost resolvers, it was using a string match on the word
"nameserver", which could have been anywhere (including commented out)
leading to incorrect situations where no nameservers were left but the
default ones were not added.
This also adds some complexity to the regular expressions for finding
nameservers in general, as well as matching on localhost resolvers due
to the recent addition of IPv6 support. Because of IPv6 support now
available in the Docker daemon, the resolvconf code is now aware of
IPv6 enable/disable state and uses that for both filter/cleaning of
nameservers as well as adding default Google DNS (IPv4 only vs. IPv4
and IPv6 if IPv6 enabled). For all these changes, tests have been
added/strengthened to test these additional capabilities.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
The "or rename" part was removed from the error-message,
because renaming wasn't possible at the time.
Now that https://github.com/docker/docker/pull/8570 is merged,
renaming existing containers is possible.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Passing RepositoryInfo to ResolveAuthConfig, pullRepository, and pushRepository
Moving --registry-mirror configuration to registry config
Created resolve_repository job
Repo names with 'index.docker.io' or 'docker.io' are now synonymous with omitting an index name.
Adding test for RepositoryInfo
Adding tests for opts.StringSetOpts and registry.ValidateMirror
Fixing search term use of repoInfo
Adding integration tests for registry mirror configuration
Normalizing LookupImage image name to match LocalName parsing rules
Normalizing repository LocalName to avoid multiple references to an official image
Removing errorOut use in tests
Removing TODO comment
gofmt changes
golint comments cleanup. renaming RegistryOptions => registry.Options, and RegistryServiceConfig => registry.ServiceConfig
Splitting out builtins.Registry and registry.NewService calls
Stray whitespace cleanup
Moving integration tests for Mirrors and InsecureRegistries into TestNewIndexInfo unit test
Factoring out ValidateRepositoryName from NewRepositoryInfo
Removing unused IndexServerURL
Allowing json marshaling of ServiceConfig. Exposing ServiceConfig in /info
Switching to CamelCase for json marshaling
PR cleanup; removing 'Is' prefix from boolean members. Removing unneeded json tags.
Removing non-cleanup related fix for 'localhost:[port]' in splitReposName
Merge fixes for gh9735
Fixing integration test
Reapplying #9754
Adding comment on config.IndexConfigs use from isSecureIndex
Remove unused error return value from isSecureIndex
Signed-off-by: Don Kjer <don.kjer@gmail.com>
Adding back comment in isSecureIndex
Signed-off-by: Don Kjer <don.kjer@gmail.com>
Only modifies non-running containers resolv.conf bind mount, and only if
the container has an unmodified resolv.conf compared to its contents at
container start time (so we don't overwrite manual/automated changes
within the container runtime). For containers which are running when
the host resolv.conf changes, the update will only be applied to the
container version of resolv.conf when the container is "bounced" down
and back up (e.g. stop/start or restart)
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
This changes the error message that is returned by the daemon when
a container-name already exists.
The old message suggests that containers can be renamed, which is
currently not possible.
To prevent confusion, the part "(or rename)" is removed from
the error-message.
Message before this change;
FATA[0000] Error response from daemon: Conflict, The name foobar is already assigned to 728ac36fb0ab. You have to delete (or rename) that container to be able to assign foobar to a container again.
Message after this change;
FATA[0000] Error response from daemon: Conflict. The name 'foobar' is already in use by container 728ac36fb0ab. You have to delete that container to be able to reuse that name.
Relates to: https://github.com/docker/docker/issues/3036
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
There has been a lot of discussion (issues 4242 and 5262) about making
`FROM scratch` either a special case or making `FROM` optional, implying
starting from an empty file system.
This patch makes the build command `FROM scratch` special cased from now on
and if used does not pull/set the the initial layer of the build to the ancient
image ID (511136ea..) but instead marks the build as having no base image. The
next command in the dockerfile will create an image with a parent image ID of "".
This means every image ever can now use one fewer layer!
This also makes the image name `scratch` a reserved name by the TagStore. You
will not be able to tag an image with this name from now on. If any users
currently have an image tagged as `scratch`, they will still be able to use that
image, but will not be able to tag a new image with that name.
Goodbye '511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158',
it was nice knowing you.
Fixes#4242
Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)
When the user is not using the full has to retrieve a container it's
possible that we find conflicts with the ids of other containers.
At the moment it's just failing saying that it can not find a container,
but it doesn't say why. Adding a small log saying that duplicates where
found is going to help the user.
Closes#8098
Signed-off-by: Alex Gonzalez <agonzalezro@gmail.com>
Tibor Vass
Arnaud Porterie
Madhu Venugopal
Daniel Nephin
David Calavera
Jess Frazelle
Michael Crosby
Doug Davis
Hu Keping
John Howard
Brian Goff
Antonio Murdaca
Lei Jitang
Mrunal Patel
Antonio Murdaca
Ma Shimiao
Shijiang Wei
Morgan Bauer
Vincent Demeester
Alexander Morozov
Sebastiaan van Stijn
Tonis Tiigi
Stefan J. Wernli
Tibor Vass
Kir Kolyshkin
Alexander Morozov
gs11
Dan Walsh
Roman Strashkin
Qiang Huang
Chun Chen
root
Jana Radhakrishnan
Eric-Olivier Lamey
Antonio Murdaca
Darren Shepherd
Shishir Mahajan
Ahmet Alp Balkan
Phil Estes
Bharath Thiruveedula
Jessica Frazelle
Phil Estes
David Mackey
jmzwcn
jianbosun
Srini Brahmaroutu
Evan Hazlett
Michael Crosby
John Gossman
Doug Davis
Eric Windisch
Abhishek Chanda
Peter Choi
Jimmy Puckett
Mabin
Rick Wieman
bobby abbott
Tibor Vass
Michal Minar
Srini Brahmaroutu
Sami Wagiaalla
Andrew C. Bodine
Derek McGowan
Sebastiaan van Stijn
Malte Janduda
Don Kjer
unknown
Josh Hawn
Álex González