Modifying the builtin Windows runtime to send the exited event
immediately upon the container's init process exiting, without first
waiting for the Compute System to shut down, perturbed the timings
enough to make TestWaitConditions flaky on that platform. Make
TestWaitConditions timing-independent by having the container wait
for input on STDIN before exiting.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Terminating the exec process when the context is canceled has been
broken since Docker v17.11 so nobody has been able to depend upon that
behaviour in five years of releases. We are thus free from backwards-
compatibility constraints.
Co-authored-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Signed-off-by: Cory Snider <csnider@mirantis.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Since runtimes can now just be containerd shims, we need to check if the
reference is possibly a containerd shim.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Contrary to popular belief, the OCI Runtime specification does not
specify the command-line API for runtimes. Looking at containerd's
architecture from the lens of the OCI Runtime spec, the _shim_ is the
OCI Runtime and runC is "just" an implementation detail of the
io.containerd.runc.v2 runtime. When one configures a non-default runtime
in Docker, what they're really doing is instructing Docker to create
containers using the io.containerd.runc.v2 runtime with a configuration
option telling the runtime that the runC binary is at some non-default
path. Consequently, only OCI runtimes which are compatible with the
io.containerd.runc.v2 shim, such as crun, can be used in this manner.
Other OCI runtimes, including kata-containers v2, come with their own
containerd shim and are not compatible with io.containerd.runc.v2.
As Docker has not historically provided a way to select a non-default
runtime which requires its own shim, runtimes such as kata-containers v2
could not be used with Docker.
Allow other containerd shims to be used with Docker; no daemon
configuration required. If the daemon is instructed to create a
container with a runtime name which does not match any of the configured
or stock runtimes, it passes the name along to containerd verbatim. A
user can start a container with the kata-containers runtime, for
example, simply by calling
docker run --runtime io.containerd.kata.v2
Runtime names which containerd would interpret as a path to an arbitrary
binary are disallowed. While handy for development and testing it is not
strictly necessary and would allow anyone with Engine API access to
trivially execute any binary on the host as root, so we have decided it
would be safest for our users if it was not allowed.
It is not yet possible to set an alternative containerd shim as the
default runtime; it can only be configured per-container.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Older versions of Go don't format comments, so committing this as
a separate commit, so that we can already make these changes before
we upgrade to Go 1.19.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
WARN [runner] The linter 'golint' is deprecated (since v1.41.0) due to: The repository of the linter has been archived by the owner. Replaced by revive.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
commit 737e8c6ab8 added validation for the wait
condition parameter, however, the default ("not-running") option was not part
of the list of valid options, resulting in a regression if the default value
was explicitly passed;
docker scan --accept-license --version
Error response from daemon: invalid condition: "not-running"
This patch adds the missing option, and adds a test to verify.
With this patch;
make BIND_DIR=. DOCKER_GRAPHDRIVER=vfs TEST_FILTER=TestWaitConditions test-integration
...
--- PASS: TestWaitConditions (0.04s)
--- PASS: TestWaitConditions/removed (1.79s)
--- PASS: TestWaitConditions/default (1.91s)
--- PASS: TestWaitConditions/next-exit (1.97s)
--- PASS: TestWaitConditions/not-running (1.99s)
PASS
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Now client have the possibility to set the console size of the executed
process immediately at the creation. This makes a difference for example
when executing commands that output some kind of text user interface
which is bounded by the console dimensions.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
1. Add integration tests for the ContainerLogs API call
Each test handle a distinct case of ContainerLogs output.
- Muxed stream, when container is started without tty
- Single stream, when container is started with tty
2. Add unit test for LogReader suite that tests concurrent logging
It checks that there are no race conditions when logging concurrently
from multiple goroutines.
Co-authored-by: Cory Snider <csnider@mirantis.com>
Signed-off-by: Cory Snider <csnider@mirantis.com>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Starting with the 22.06 release, buildx is the default client for
docker build, which uses BuildKit as builder.
This patch changes the default builder version as advertised by
the daemon to "2" (BuildKit), so that pre-22.06 CLIs with BuildKit
support (but no buildx installed) also default to using BuildKit
when interacting with a 22.06 (or up) daemon.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
I noticed I made a mistake in the first ping ("before swarm init"), which
was not specifying the daemon's socket path and because of that testing
against the main integration daemon (not the locally spun up daemon).
While fixing that, I wondered why the test didn't actually use the client
for the requests (to also verify the client converted the response), so
I rewrote the test to use `client.Ping()` and to verify the ping response
has the expected values set.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These HostConfig properties were not validated until the OCI spec for the container
was created, which meant that `container run` and `docker create` would accept
invalid values, and the invalid value would not be detected until `start` was
called, returning a 500 "internal server error", as well as errors from containerd
("cleanup: failed to delete container from containerd: no such container") in the
daemon logs.
As a result, a faulty container was created, and the container state remained
in the `created` state.
This patch:
- Updates `oci.WithNamespaces()` to return the correct `errdefs.InvalidParameter`
- Updates `verifyPlatformContainerSettings()` to validate these settings, so that
an error is returned when _creating_ the container.
Before this patch:
docker run -dit --ipc=shared --name foo busybox
2a00d74e9fbb7960c4718def8f6c74fa8ee754030eeb93ee26a516e27d4d029f
docker: Error response from daemon: Invalid IPC mode: shared.
docker ps -a --filter name=foo
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2a00d74e9fbb busybox "sh" About a minute ago Created foo
After this patch:
docker run -dit --ipc=shared --name foo busybox
docker: Error response from daemon: invalid IPC mode: shared.
docker ps -a --filter name=foo
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
An integration test was added to verify the new validation, which can be run with:
make BIND_DIR=. TEST_FILTER=TestCreateInvalidHostConfig DOCKER_GRAPHDRIVER=vfs test-integration
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
On Linux the daemon was not respecting the HostConfig.ConsoleSize
property and relied on cli initializing the tty size after the container
was created. This caused a delay between container creation and
the tty actually being resized.
This is also a small change to the api description, because
HostConfig.ConsoleSize is no longer Windows-only.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
This change is in preparation of deprecating support for old manifests.
Currently the daemon's ID is based on the trust-key ID, which will be
removed once we fully deprecate support for old manifests (the trust
key is currently only used in tests).
This patch:
- looks if a trust-key is present; if so, it migrates the trust-key
ID to the new "engine-id" file within the daemon's root.
- if no trust-key is present (so in case it's a "fresh" install), we
generate a UUID instead and use that as ID.
The migration is to prevent engines from getting a new ID on upgrades;
while we don't provide any guarantees on the engine's ID, users may
expect the ID to be "stable" (not change) between upgrades.
A test has been added, which can be ran with;
make DOCKER_GRAPHDRIVER=vfs TEST_FILTER='TestConfigDaemonID' test-integration
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was added in 93c3e6c91e, at which time only
some basic handling of non-succesful status codes was present;
93c3e6c91e/api/client/utils.go (L112-L121)
Given that since 38e6d474af non-successful status-
codes are already handled, and a 204 ("no content") status should not be an error,
this special case should no longer be needed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Implement similar logic as is used in httputils.ReadJSON(). Before
this patch, endpoints using the ContainerDecoder would incorrectly
return a 500 (internal server error) status.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Implement a ReadJSON() utility to help reduce some code-duplication,
and to make sure we handle JSON requests consistently (e.g. always
check for the content-type).
Differences compared to current handling:
- prevent possible panic if request.Body is nil ("should never happen")
- always require Content-Type to be "application/json"
- be stricter about additional content after JSON (previously ignored)
- but, allow the body to be empty (an empty body is not invalid);
update TestContainerInvalidJSON accordingly, which was testing the
wrong expectation.
- close body after reading (some code did this)
We should consider to add a "max body size" on this function, similar to
7b9275c0da/api/server/middleware/debug.go (L27-L40)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is a follow-up to 427c7cc5f8, which added
proxy-configuration options ("http-proxy", "https-proxy", "no-proxy") to the
dockerd cli and in `daemon.json`.
While working on documentation changes for this feature, I realised that those
options won't be "next" to each-other when formatting the daemon.json JSON, for
example using `jq` (which sorts the fields alphabetically). As it's possible that
additional proxy configuration options are added in future, I considered that
grouping these options in a struct within the JSON may help setting these options,
as well as discovering related options.
This patch introduces a "proxies" field in the JSON, which includes the
"http-proxy", "https-proxy", "no-proxy" options.
Conflict detection continues to work as before; with this patch applied:
mkdir -p /etc/docker/
echo '{"proxies":{"http-proxy":"http-config", "https-proxy":"https-config", "no-proxy": "no-proxy-config"}}' > /etc/docker/daemon.json
dockerd --http-proxy=http-flag --https-proxy=https-flag --no-proxy=no-proxy-flag --validate
unable to configure the Docker daemon with file /etc/docker/daemon.json:
the following directives are specified both as a flag and in the configuration file:
http-proxy: (from flag: http-flag, from file: http-config),
https-proxy: (from flag: https-flag, from file: https-config),
no-proxy: (from flag: no-proxy-flag, from file: no-proxy-config)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Arbitrary here does not include '', best to catch that one early as it's
almost certainly a mistake (possibly an attempt to pass a POSIX path
through this API)
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
Since this function is about to get more complicated, and change
behaviour, this establishes tests for the existing implementation.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
This adds an additional "Swarm" header to the _ping endpoint response,
which allows a client to detect if Swarm is enabled on the daemon, without
having to call additional endpoints.
This change is not versioned in the API, and will be returned irregardless
of the API version that is used. Clients should fall back to using other
endpoints to get this information if the header is not present.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The wrapResponseError() utility converted some specific errors, but in
doing so, could hide the actual error message returned by the daemon.
In addition, starting with 38e6d474af,
HTTP status codes were already mapped to their corresponding errdefs
types on the client-side, making this conversion redundant.
This patch removes the wrapResponseError() utility; it's worth noting
that some error-messages will change slightly (as they now return the
error as returned by the daemon), but may cointain more details as
before, and in some cases prevents hiding the actual error.
Before this change:
docker container rm nosuchcontainer
Error: No such container: nosuchcontainer
docker container cp mycontainer:/no/such/path .
Error: No such container:path: mycontainer:/no/such/path
docker container cp ./Dockerfile mycontainer:/no/such/path
Error: No such container:path: mycontainer:/no/such
docker image rm nosuchimage
Error: No such image: nosuchimage
docker network rm nosuchnetwork
Error: No such network: nosuchnetwork
docker volume rm nosuchvolume
Error: No such volume: nosuchvolume
docker plugin rm nosuchplugin
Error: No such plugin: nosuchplugin
docker checkpoint rm nosuchcontainer nosuchcheckpoint
Error response from daemon: No such container: nosuchcontainer
docker checkpoint rm mycontainer nosuchcheckpoint
Error response from daemon: checkpoint nosuchcheckpoint does not exist for container mycontainer
docker service rm nosuchservice
Error: No such service: nosuchservice
docker node rm nosuchnode
Error: No such node: nosuchnode
docker config rm nosuschconfig
Error: No such config: nosuschconfig
docker secret rm nosuchsecret
Error: No such secret: nosuchsecret
After this change:
docker container rm nosuchcontainer
Error response from daemon: No such container: nosuchcontainer
docker container cp mycontainer:/no/such/path .
Error response from daemon: Could not find the file /no/such/path in container mycontainer
docker container cp ./Dockerfile mycontainer:/no/such/path
Error response from daemon: Could not find the file /no/such in container mycontainer
docker image rm nosuchimage
Error response from daemon: No such image: nosuchimage:latest
docker network rm nosuchnetwork
Error response from daemon: network nosuchnetwork not found
docker volume rm nosuchvolume
Error response from daemon: get nosuchvolume: no such volume
docker plugin rm nosuchplugin
Error response from daemon: plugin "nosuchplugin" not found
docker checkpoint rm nosuchcontainer nosuchcheckpoint
Error response from daemon: No such container: nosuchcontainer
docker checkpoint rm mycontainer nosuchcheckpoint
Error response from daemon: checkpoint nosuchcheckpoint does not exist for container mycontainer
docker service rm nosuchservice
Error response from daemon: service nosuchservice not found
docker node rm nosuchnode
Error response from daemon: node nosuchnode not found
docker config rm nosuchconfig
Error response from daemon: config nosuchconfig not found
docker secret rm nosuchsecret
Error response from daemon: secret nosuchsecret not found
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Finish the refactor which was partially completed with commit
34536c498d, passing around IdentityMapping structs instead of pairs of
[]IDMap slices.
Existing code which uses []IDMap relies on zero-valued fields to be
valid, empty mappings. So in order to successfully finish the
refactoring without introducing bugs, their replacement therefore also
needs to have a useful zero value which represents an empty mapping.
Change IdentityMapping to be a pass-by-value type so that there are no
nil pointers to worry about.
The functionality provided by the deprecated NewIDMappingsFromMaps
function is required by unit tests to to construct arbitrary
IdentityMapping values. And the daemon will always need to access the
mappings to pass them to the Linux kernel. Accommodate these use cases
by exporting the struct fields instead. BuildKit currently depends on
the UIDs and GIDs methods so we cannot get rid of them yet.
Signed-off-by: Cory Snider <csnider@mirantis.com>
This is more in line with other consts that are used for defaults, and makes it
slightly easier to consume than DefaultV2Registry, e.g. see:
https://github.com/oras-project/oras-go/blob/v1.1.0/pkg/auth/docker/resolver.go#L81-L84
Note that both the "index.docker.io" and "registry-1.docker.io" domains
are here for historic reasons and backward-compatibility. These domains
are still supported by Docker Hub (and will continue to be supported), but
there are new domains already in use, and plans to consolidate all legacy
domains to new "canonical" domains. Once those domains are decided on, we
should update these consts (but making sure to preserve compatibility with
existing installs, clients, and user configuration).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was added in commits fc21bf280b and
0380fbff37 in support of LCOW, but was
now always set to runtime.GOOS.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Commit 0380fbff37 added the ability to pass a
--platform flag on `docker import` when importing an archive. The intent
of that commit was to allow importing a Linux rootfs on a Windows daemon
(as part of the experimental LCOW feature).
A later commit (337ba71fc1) changed some
of this code to take both OS and Architecture into account (for `docker build`
and `docker pull`), but did not yet update the `docker image import`.
This patch updates the import endpoitn to allow passing both OS and
Architecture. Note that currently only matching OSes are accepted,
and an error will be produced when (e.g.) specifying `linux` on Windows
and vice-versa.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
