So far, only a subset of NetworkingConfig was validated when calling
ContainerCreate. Other parameters would be validated when the container
was started. And the same goes for EndpointSettings on NetworkConnect.
This commit adds two validation steps:
1. Check if the IP addresses set in endpoint's IPAMConfig are valid,
when ContainerCreate and ConnectToNetwork is called ;
2. Check if the network allows static IP addresses, only on
ConnectToNetwork as we need the libnetwork's Network for that and it
might not exist until NetworkAttachment requests are sent to the
Swarm leader (which happens only when starting the container) ;
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Make `PullImage` accept `reference.Named` directly instead of
duplicating the parsing code for both graphdriver and containerd image
service implementations.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
The API endpoint `/containers/create` accepts several EndpointsConfig
since v1.22 but the daemon would error out in such case. This check is
moved from the daemon to the api and is now applied only for API < 1.44,
effectively allowing the daemon to create containers connected to
several networks.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Fixes#18864, #20648, #33561, #40901.
[This GH comment][1] makes clear network name uniqueness has never been
enforced due to the eventually consistent nature of Classic Swarm
datastores:
> there is no guaranteed way to check for duplicates across a cluster of
> docker hosts.
And this is further confirmed by other comments made by @mrjana in that
same issue, eg. [this one][2]:
> we want to adopt a schema which can pave the way in the future for a
> completely decentralized cluster of docker hosts (if scalability is
> needed).
This decentralized model is what Classic Swarm was trying to be. It's
been superseded since then by Docker Swarm, which has a centralized
control plane.
To circumvent this drawback, the `NetworkCreate` endpoint accepts a
`CheckDuplicate` flag. However it's not perfectly reliable as it won't
catch concurrent requests.
Due to this design decision, API clients like Compose have to implement
workarounds to make sure names are really unique (eg.
docker/compose#9585). And the daemon itself has seen a string of issues
due to that decision, including some that aren't fixed to this day (for
instance moby/moby#40901):
> The problem is, that if you specify a network for a container using
> the ID, it will add that network to the container but it will then
> change it to reference the network by using the name.
To summarize, this "feature" is broken, has no practical use and is a
source of pain for Docker users and API consumers. So let's just remove
it for _all_ API versions.
[1]: https://github.com/moby/moby/issues/18864#issuecomment-167201414
[2]: https://github.com/moby/moby/issues/18864#issuecomment-167202589
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
PR 4f47013feb added a validation step to `NetworkCreate` to ensure
no IPv6 subnet could be set on a network if its `EnableIPv6` parameter
is false.
Before that, the daemon was accepting such request but was doing nothing
with the IPv6 subnet.
This validation step is now deleted, and we automatically set
`EnableIPv6` if an IPv6 subnet was specified.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
This uses otel standard environment variables to configure tracing in
the daemon.
It also adds support for propagating trace contexts in the client and
reading those from the API server.
See
https://opentelemetry.io/docs/specs/otel/configuration/sdk-environment-variables/
for details on otel environment variables.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Updated the description to clarify that this is the endpoint to use if
you want to pull an image.
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
Define consts for the Actions we use for events, instead of "ad-hoc" strings.
Having these consts makes it easier to find where specific events are triggered,
makes the events less error-prone, and allows documenting each Action (if needed).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Make the error message slightly clearer on "what" part is not valid,
and provide suggestions on what are acceptable values.
Before this change:
docker create --restart=always:3 busybox
Error response from daemon: invalid restart policy: maximum retry count cannot be used with restart policy 'always'
docker create --restart=always:-1 busybox
Error response from daemon: invalid restart policy: maximum retry count cannot be used with restart policy 'always'
docker create --restart=unknown busybox
Error response from daemon: invalid restart policy 'unknown'
After this change:
docker create --restart=always:3 busybox
Error response from daemon: invalid restart policy: maximum retry count can only be used with 'on-failure'
docker create --restart=always:-1 busybox
Error response from daemon: invalid restart policy: maximum retry count can only be used with 'on-failure' and cannot be negative
docker create --restart=unknown busybox
Error response from daemon: invalid restart policy: unknown policy 'unknown'; use one of 'no', 'always', 'on-failure', or 'unless-stopped'
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This type was added in 247f4796d2, and
at the time was added as an alias for string;
> api/types/events: add "Type" type for event-type enum
>
> Currently just an alias for string, but we can change it to be an
> actual type.
Now that all code uses the defined types, we should be able to make
this an actual type.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The content of this file was removed in c0bc14e8dd,
and all it container since was the package name.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Currently, IPAM config is never validated by the API. Some checks
are done by the CLI, but they're not exhaustive. And some of these
misconfigurations might be caught early by libnetwork (ie. when the
network is created), and others only surface when connecting a container
to a misconfigured network. In both cases, the API would return a 500.
Although the `NetworkCreate` endpoint might already return warnings,
these are never displayed by the CLI. As such, it was decided during a
maintainer's call to return validation errors _for all API versions_.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Also move the validation function to live with the type definition,
which allows it to be used outside of the daemon as well.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Partially revert commit 94b880f.
The CheckDuplicate field has been introduced in commit 2ab94e1. At that
time, this check was done in the network router. It was then moved to
the daemon package in commit 3ca2982. However, commit 94b880f duplicated
the logic into the network router for no apparent reason. Finally,
commit ab18718 made sure a 409 would be returned instead of a 500.
As this logic is first done by the daemon, the error -> warning
conversion can't happen because CheckDuplicate has to be true for the
daemon package to return an error. If it's false, the daemon proceed
with the network creation, set the Warning field of its return value and
return no error.
Thus, the CheckDuplicate logic in the api is removed and
libnetwork.NetworkNameError now implements the ErrConflict interface.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
The is-automated field is being deprecated by Docker Hub's search API,
and will always be set to "false" in future.
This patch deprecates the field and related filter for the Engine's API.
In future, the `is-automated` filter will no longer yield any results
when searching for `is-automated=true`, and will be ignored when
searching for `is-automated=false`.
Given that this field is deprecated by an external API, the deprecation
will not be versioned, and will apply to any API version.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The "Capability" type defines DataScope and ConnectivityScope fields,
but their value was set from consts in the datastore package, which
required importing that package and its dependencies for the consts
only.
This patch:
- Moves the consts to a separate "scope" package
- Adds aliases for the consts in the datastore package.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This function was used by the postNetworkConnect() handler, but is handled
by the backend itself, starting with d63a5a1ff5.
Since that commit, this function was no longer used, so we can remove it.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
With this change, the API will now return a 403 instead of a 500 when
trying to create an overlay network on a non-manager node.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
