Allows for a plugin type that can be used to scrape metrics.
This is useful because metrics are not neccessarily at a standard
location... `--metrics-addr` must be set, and must currently be a TCP
socket.
Even if metrics are done via a unix socket, there's no guarentee where
the socket may be located on the system, making bind-mounting such a
socket into a container difficult (and racey, failure-prone on daemon
restart).
Metrics plugins side-step this issue by always listening on a unix
socket and then bind-mounting that into a known path in the plugin
container.
Note there has been similar work in the past (and ultimately punted at
the time) for consistent access to the Docker API from within a
container.
Why not add metrics to the Docker API and just provide a plugin with
access to the Docker API? Certainly this can be useful, but gives a lot
of control/access to a plugin that may only need the metrics. We can
look at supporting API plugins separately for this reason.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
in the Docker REST APIs when viewing or updating the swarm spec info, and
also propagate the desired CA key in the Docker REST APIs when updating
swarm spec info only (it is not available for viewing).
Signed-off-by: Ying Li <ying.li@docker.com>
objects into the REST API responses. In the CLI, display only
whether the nodes' TLS info matches the cluster's TLS info, or
whether the node needs cert rotation.
Signed-off-by: Ying Li <ying.li@docker.com>
Starting with this commit, integration tests should no longer rely on
the docker cli, they should be API tests instead. For the existing tests
the scripts will use a frozen version of the docker cli with a
DOCKER_API_VERSION frozen to 1.30, which should ensure that the CI remains
green at all times.
To help contributors develop and test manually with a modified docker
cli, this commit also adds a DOCKER_CLI_PATH environment variable to the
Makefile. This allows to set the path of a custom cli that will be
available inside the development container and used to run the
integration tests.
Signed-off-by: Arnaud Porterie (icecrime) <arnaud.porterie@docker.com>
Signed-off-by: Tibor Vass <tibor@docker.com>
This is synonymous with `docker run --cidfile=FILE` and writes the digest of
the newly built image to the named file. This is intended to be used by build
systems which want to avoid tagging (perhaps because they are in CI or
otherwise want to avoid fixed names which can clash) by enabling e.g. Makefile
constructs like:
image.id: Dockerfile
docker build --iidfile=image.id .
do-some-more-stuff: image.id
do-stuff-with <image.id
Currently the only way to achieve this is to use `docker build -q` and capture
the stdout, but at the expense of losing the build output.
In non-silent mode (without `-q`) with API >= v1.29 the caller will now see a
`JSONMessage` with the `Aux` field containing a `types.BuildResult` in the
output stream for each image/layer produced during the build, with the final
one being the end product. Having all of the intermediate images might be
interesting in some cases.
In silent mode (with `-q`) there is no change, on success the only output will
be the resulting image digest as it was previosuly.
There was no wrapper to just output an Aux section without enclosing it in a
Progress, so add one here.
Added some tests to integration cli tests.
Signed-off-by: Ian Campbell <ian.campbell@docker.com>
Instead of forcing users to manually configure a block device to use
with devmapper, this gives the user the option to let the devmapper
driver configure a device for them.
Adds several new options to the devmapper storage-opts:
- dm.directlvm_device="" - path to the block device to configure for
direct-lvm
- dm.thinp_percent=95 - sets the percentage of space to use for
storage from the passed in block device
- dm.thinp_metapercent=1 - sets the percentage of space to for metadata
storage from the passed in block device
- dm.thinp_autoextend_threshold=80 - sets the threshold for when `lvm`
should automatically extend the thin pool as a percentage of the total
storage space
- dm.thinp_autoextend_percent=20 - sets the percentage to increase the
thin pool by when an autoextend is triggered.
Defaults are taken from
[here](https://docs.docker.com/engine/userguide/storagedriver/device-mapper-driver/#/configure-direct-lvm-mode-for-production)
The only option that is required is `dm.directlvm_device` for docker to
set everything up.
Changes to these settings are not currently supported and will error
out.
Future work could support allowing changes to these values.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
added some clarification around why attach can appear hung to some. issue #1456 on docs
Signed-off-by: gary schaetz <gary@schaetzkc.com>
Updated the documentation to reflect what happens when you use a fragment in
the docker build url parameter.
Signed-off-by: Gary Schaetz <gary@schaetzkc.com>
added markup for commands
Signed-off-by: Gary Schaetz <gary@schaetzkc.com>
The `Log` field for plugins was added to `/info` in
17abacb894 but the swagger spec was not
updated.
This just updates the spec to match reality.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
The daemon config for defaulting to no-new-privileges for containers was
added in d7fda019bb, but somehow we
managed to omit the flag itself, but also documented the flag.
This just adds the actual flag.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This new flag will allow the configuration of an interface that
can be used for data path traffic to be isolated from control
plane traffic. This flag is simply percolated down to libnetwork
and will be used by all the global scope drivers (today overlay)
Negative test added for invalid flag arguments
Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
