recommend using `docker container prune`, but show an example on
how to combine commands with a bit more context and warnings
about portability/compatibility.
Thanks to Charlie Arehart to do the initial work on this.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Looks like the YAML conversion doesn't like lines starting with `[`, and
causing it to use the "compact" formatting in the generated YAML.
This patch un-wraps these lines to prevent this.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
To create this, I ran every JSON document through `jq -S` (which sorts the keys and consistently pretty-prints the result in a format which matches the majority of documents in this file).
Signed-off-by: Tianon Gravi <admwiggin@gmail.com>
The CLI disabled experimental features by default, requiring users
to set a configuration option to enable them.
Disabling experimental features was a request from Enterprise users
that did not want experimental features to be accessible.
We are changing this policy, and now enable experimental features
by default. Experimental features may still change and/or removed,
and will be highlighted in the documentation and "usage" output.
For example, the `docker manifest inspect --help` output now shows:
EXPERIMENTAL:
docker manifest inspect is an experimental feature.
Experimental features provide early access to product functionality. These features
may change between releases without warning or can be removed entirely from a future
release. Learn more about experimental features: https://docs.docker.com/go/experimental/
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
If a file contains trailing whitespace, the YAML generator uses a
compact format, which is hard to read.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The `ENV key value` form can be ambiguous, for example, the following defines
a single env-variable (`ONE`) with value `"TWO= THREE=world"`:
ENV ONE TWO= THREE=world
While we cannot deprecate/remove that syntax (as it would break existing
Dockerfiles), we should reduce exposure of the format in our examples.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
When creating and updating services, we need to avoid unneeded service churn.
The interaction of separate lists to "add" and "drop" capabilities, a special
("ALL") capability, as well as a "relaxed" format for accepted capabilities
(case-insensitive, `CAP_` prefix optional) make this rather involved.
This patch updates how we handle `--cap-add` / `--cap-drop` when _creating_ as
well as _updating_, with the following rules/assumptions applied:
- both existing (service spec) and new (values passed through flags or in
the compose-file) are normalized and de-duplicated before use.
- the special "ALL" capability is equivalent to "all capabilities" and taken
into account when normalizing capabilities. Combining "ALL" capabilities
and other capabilities is therefore equivalent to just specifying "ALL".
- adding capabilities takes precedence over dropping, which means that if
a capability is both set to be "dropped" and to be "added", it is removed
from the list to "drop".
- the final lists should be sorted and normalized to reduce service churn
- no validation of capabilities is handled by the client. Validation is
delegated to the daemon/server.
When deploying a service using a docker-compose file, the docker-compose file
is *mostly* handled as being "declarative". However, many of the issues outlined
above also apply to compose-files, so similar handling is applied to compose
files as well to prevent service churn.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
DongGeon Lee
rochfeu
Silvin Lubecki
Sebastiaan van Stijn
Andres Leon Rangel
Benjamin Böhmke
Kyle
Tianon Gravi
Eric Engestrom
Charlotte Mach
Tibor Vass
Albin Kerouanton
horpto
eyherabh
Tonis Tiigi
Akihiro Suda
Brian Wieder