Adds a new plugin to the e2e plugins that simulates an older
plugin binary and a test suite to ensure older plugin binaries
keep behaving the same with newer CLI versions.
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
Use the `XXXVar` equivalent for flags that don't have a shorthand flag
instead of passing an empty string for the shorthand flag.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- rename confusing `target` argument, and use `containerID` in all places;
also make the variable more clearly local-scoped.
- rename `dockerCli` to be correctly camel-case, and to be consistent in
all places in this file.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Docker Engine 1.13 (API v1.25) added an option to set a custom default seccomp
profile on the daemon (see [moby/moby@b237189]). A warning was added on the
client-side if a non-default profile was set.
Docker Engine 23.0 (API v1.42) added warnings about non-default seccomp
profiles to the "info" response ([moby/moby@04f932a]), and the client was
updated to skip generating client-side warnings for API v1.42 and up in
[docker/cli@8964595].
These warnings are purely informational, and given that Docker Engine versions
before 23.0 have reached EOL, and any current version of the Engine now returns
the Warnings, it should be safe to remove the client-side fall back logic.
This patch removes the client-side fall back code for warnings that was
added in 8964595692.
[moby/moby@b237189]: b237189e6c
[moby/moby@04f932a]: 04f932ac86
[docker/cli@8964595]: 8964595692
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This function was deprecated in 298bddcc23 for
v25.0, and unused. This patch removes the function.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These types were deprecated in 7af509c7f1 (v25.0),
in favor of CLIOption, and are no longer used.
This patch removes the deprecated type-aliases, and while updating, also improves
the documentation for the CLIOption type.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Docker Engine 18.09 (API v1.39) introduced a Warnings field in the into response.
This enhancement was not gated by API version (see [moby/moby@a3d4238]), and
will be returned by Docker Engine 18.09 and up, regardless of the API version
chosen.
Likewise, the client-side code was written to prefer warnings returned by
the daemon, but to fall back on client-side detection of missing features
based on information in the Info response (see [docker/cli@3c27ce2]).
Thse warnings are purely informational, and given that Docker Engine versions
before 18.09 have reached EOL 6 Years ago, and any current version of the
Engine now returns the Warnings, it should be safe to remove the client-side
fall back logic.
This patch removes the client-side fall back code for warnings that was
added in 3c27ce21c9.
[moby/moby@a3d4238]: a3d4238b9c
[docker/cli@3c27ce2]: 3c27ce21c9
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
CLI reference for the base command was generated to cli.md
Changed it to docker.md to handle broken links.
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
Alias pages redirect to the canonical names, but these pages still
linked to the aliases, causing broken links when building the docs site.
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
- Add section about cdi-spec-dirs daemon configuration
- Add subsection about cdi in --device section for docker run
- Update `docker info` output example
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
The Docker daemon provides a versioned API for backward compatibility with old
clients. Docker clients can perform API-version negotiation to select the most
recent API version supported by the daemon (downgrading to and older version of
the API when necessary). API version negotiation was introduced in Docker v1.12.0
(API 1.24), and clients before that used a fixed API version.
Docker Engine versions through v25.0 provide support for all [API versions](https://docs.docker.com/engine/api/#api-version-matrix)
included in stable releases for a given platform. For Docker daemons on Linux,
the earliest supported API version is 1.12 (corresponding with Docker Engine
v1.0.0), whereas for Docker daemons on Windows, the earliest supported API
version is 1.24 (corresponding with Docker Engine v1.12.0).
Support for legacy API versions (providing old API versions on current versions
of the Docker Engine) is primarily intended to provide compatibility with recent,
but still supported versions of the client, which is a common scenario (the Docker
daemon may be updated to the latest release, but not all clients may be up-to-date
or vice versa). Support for API versions before that (API versions provided by
EOL versions of the Docker Daemon) is provided on a "best effort" basis.
Use of old API versions is very rare, and support for legacy API versions
involves significant complexity (Docker 1.0.0 having been released 10 years ago).
Because of this, we'll start deprecating support for legacy API versions.
Docker Engine v25.0 by default disables API version older than 1.24 (aligning
the minimum supported API version between Linux and Windows daemons). When
connecting with a client that uses an API version version older than 1.24,
the daemon returns an error. The following example configures the docker
CLI to use API version 1.23, which produces an error:
DOCKER_API_VERSION=1.23 docker version
Error response from daemon: client version 1.23 is too old. Minimum supported API version is 1.24, please upgrade your client to a newer version
An environment variable (`DOCKER_MIN_API_VERSION`) is introduced that allows
re-enabling older API versions in the daemon. This environment variable must
be set in the daemon's environment (for example, through a [systemd override
file](https://docs.docker.com/config/daemon/systemd/)), and the specified
API version must be supported by the daemon (`1.12` or higher on Linux, or
`1.24` or higher on Windows).
Support for API versions lower than `1.24` will be permanently removed in Docker
Engine v26, and the minimum supported API version will be incrementally raised
in releases following that.
We do not recommend depending on the `DOCKER_MIN_API_VERSION` environment
variable other than for exceptional cases where it's not possible to update
old clients, and those clients must be supported.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
In order to solve the "double notification" issue (see:
ef5e5fa03f)
without running the plugin process under a new pgid (see:
https://github.com/moby/moby/issues/47073) we instead check if we're
attached to a TTY, and if so skip signalling the plugin process since it
will already be signalled.
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
This reverts commit ef5e5fa03f.
Running new plugins under a new pgid isn't a viable solution due to
it causing issues with plugin processes attempting to read from the
TTY (see: https://github.com/moby/moby/issues/47073).
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
Laura Brehm
Sebastiaan van Stijn
Sebastiaan van Stijn
Paweł Gronowski
David Karlsson
Tonis Tiigi