This splits the validation code from parsing code, potentially allowing
us to either fully deferring it to the daemon, or to perform validation
separately.
For reference; daemon-side validation currently (docker 29.2.0) produces;
docker run --rm --mount type=bind,src=/var/run,target=/foo,bind-recursive=writable alpine
docker: Error response from daemon: mount options conflict: !ReadOnly && BindOptions.ReadOnlyNonRecursive
docker run --rm --mount type=bind,src=/var/run,target=/foo,bind-recursive=readonly alpine
docker: Error response from daemon: mount options conflict: !ReadOnly && BindOptions.ReadOnlyForceRecursive
Validation for BindOptions.Propagation is currently missing on the daemon;
docker run --rm --mount type=bind,src=/var/run,target=/foo,bind-recursive=readonly,readonly alpine
# no error
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The daemon already validates the target, so we don't have to validate
if a target is set. Instead, we can ignore empty targets, but produce
an error if a target option was set, but set to an empty value.
With this patch applied, omitting a target option is ignored by the CLI,
but still invalidated by the daemon if the given mount-type requires a
mount target;
docker run --rm --mount type=bind,src=/var/run/docker.sock alpine
docker: Error response from daemon: invalid mount config for type "bind": field Target must not be empty
docker run --rm --mount type=bind,src=/var/run/docker.sock,dst=../foo alpine
docker: Error response from daemon: invalid mount config for type "bind": invalid mount path: '../foo' mount path must be absolute
When passing a target option (`target`, `dst`, or `destination`), the
CLI produces an error if the value is empty;
docker run --rm --mount type=bind,src=/var/run/docker.sock,dst= alpine
invalid argument "type=bind,src=/var/run/docker.sock,dst=" for "--mount" flag: invalid value for 'dst': mount target must be a non-empty value
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Before this patch:
docker run --rm --mount "" busybox
invalid argument "" for "--mount" flag: EOF
With this patch:
docker run --rm --mount "" busybox
invalid argument "" for "--mount" flag: value is empty
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Setting the source and target paths is not tied to the mount-type,
so these tests where covering the same code.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Add a custom join function that allows for non-string slices to be
joined, following the same rules as "fmt.Sprint", it will use the
fmt.Stringer interface if implemented, or "error" if the type has
an "Error()".
For maps, it joins the map-values, for example:
docker image inspect --format '{{join .Config.Labels ", "}}' ubuntu
24.04, ubuntu
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Prior to 1a502e91c9, failing to write the
container-ID to a file would return an error. After that change, we could
end up in a situation where the container was created successfully, but
we failed to inject the `config.json`. This failure would be returned as
an error, but the container was created (but no ID returned due to the error).
This patch changes the error to a warning; while not "ideal" (the container
is created, but in a "partial" state), we also shouldn't consider it to be
a hard failure; proceed as normal, to allow the user to either use the
container as-is, or to delete the container and try again.
Alternatively, we could join these errors, but the result will be ambiguous
in either case (container created, but an error occurred after the fact).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Ignore errors when trying to remove a CID-file that no longer exists;
also remove the path from the custom error as os.Remove already returns
a os.PathError, which includes the path.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Include the container-ID in the error message when failing to write
the ID to a file, so that the user can still find the ID of the container
that was created.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Paweł Gronowski
Sebastiaan van Stijn
Sebastiaan van Stijn