Jekyll doesn't work well with markdown links that are wrapped, so changing
the link to be on a single line.
While at it, also added/changed some code-hints.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
More improvements can be made, but this makes a start on cleaning up
this page:
- Reorganise configuration file options into sections
- Use tables for related options to make them easier to find
- Add warning about the config file's possibility to contain sensitive information
- Some MarkDown touch-ups (use "console" code-hint to assist copy/paste)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is mostly a copy of the equivalent `docker secret` commands,
which uses the same mechanisms behind the hood (hence, are 90% the
same).
We can make further refinements to these docs, but this gives us
a starting point.
Adding these documents, because there were some links pointing to
these pages in the docs, but there was no markdown file to link to
on GitHub.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- rename "experimental" to "labs"
- rephrase recommendation for picking a version
- clarify that the "labs" channel provides a superset of the "stable" channel.
- remove "External implementation features" section, because it overlapped
with the "syntax" section.
- removed `:latest` from the "stable" channel (generally not recommended)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- update some examples to show the BuildKit output
- remove some wording about "images" being used for the build cache
- add a link to the `--cache-from` section
- added a link to "scanning your image with `docker scan`"
- updated link to "push your image"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- use "console" for code-hints, to make process output distinguishable
from the commands that are executed
- use a consistent prompt for powershell examples
- minor changes in wording around "build context" to reduce confusion
with `docker context`
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These options are available in Docker 20.10 and up, but were
previously only available in Docker EE, and not documented.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Updates the stop.md doc to mention that the stop signal can be changed, either with the Dockerfile or via `docker run --stop-signal`. This is a real gotcha if you're not familiar with this feature and build a container that extends a container that uses `STOPSIGNAL`.
Signed-off-by: Christopher Vermilion <christopher.vermilion@gmail.com>
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>
The output format was changed to combine tag and name in a single
column, but this change was never reflected in the docs.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This reflects a Moby change to add documentation around
disabling a new feature -- to use pgzip to decompress
layers, rather than the built-in go gzip.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This creates a new section of environment variables in the CLI docs
which documents environment variables that can both be used on dockerd
and on docker cli.
In addition, it moves some of the environment variable documentation
from the docker cli documentation to the dockerd documentation, as
these environment variables are dockerd-specific.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The Engine API docs are not available in this GitHub repository,
so linking to the docs.docker.com website instead.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- replace the "none" code-hint with "console"
- some changes in the "experimental" instructions
- reformat some notes
- reformat / re-indent JSON output to use 2 spaces (for consistency)
- split JSON outputs to separate code-block so that it can be highlighted
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This adds the currently selected "docker context" to the output
of "docker version", which allows users to see which context
is selected to produce the version output, and can be used (for
example), to set the prompt to the currently selected context:
(in `~/.bashrc`):
```bash
function docker_context_prompt() {
PS1="context: $(docker version --format='{{.Client.Context}}')> "
}
PROMPT_COMMAND=docker_context_prompt
```
After reloading the `~/.bashrc`, the prompt now shows the currently selected
`docker context`:
```bash
$ source ~/.bashrc
context: default> docker context create --docker host=unix:///var/run/docker.sock my-context
my-context
Successfully created context "my-context"
context: default> docker context use my-context
my-context
Current context is now "my-context"
context: my-context> docker context use default
default
Current context is now "default"
context: default>
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Using `/var/run/docker.sock` as docker host is invalid, and causes
an error, so adding `unix://` to it.
In addition, we document the name of the context to go after the
options, so change the order in the examples.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
1. Fix dead URL to [Dockerfile best practices](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache).
2. Add missing information about cache invalidation by `COPY`. It works in the same way as in the case of `ADD`. Informing only about the `ADD`s behavior is misleading as one can infer that these two directives differ in this regard.
3. Add missing info on RUN cache invalidation by COPY
Signed-off-by: Maciej Kalisz <maciej.d.kalisz@gmail.com>
This link was broken when generating the documentation (due to
a bug in Jekyll not converting wrapped internal links)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
* Added two new modes accepted by the `--mode` flag
* `replicated-job` creates a replicated job
* `global-job` creates a global job.
* When using `replicated-job` mode, the `replicas` flag sets the
`TotalCompletions` parameter of the job. This is the total number of
tasks that will run
* Added a new flag, `max-concurrent`, for use with `replicated-job`
mode. This flag sets the `MaxConcurrent` parameter of the job, which
is the maximum number of replicas the job will run simultaneously.
* When using `replicated-job` or `global-job` mode, using any of the
update parameter flags will result in an error, as jobs cannot be
updated in the traditional sense.
* Updated the `docker service ls` UI to include the completion status
(completed vs total tasks) if the service is a job.
* Updated the progress bars UI for service creation and update to
support jobs. For jobs, there is displayed a bar covering the overall
progress of the job (the number of tasks completed over the total
number of tasks to complete).
* Added documentation explaining the use of the new flags, and of jobs
in general.
Signed-off-by: Drew Erny <derny@mirantis.com>
Service create expects the name to be passed using the
`--name` flag, not as a positional parameter
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Colon may not be something non-native English readers
know about, so explain the symbol in the running text.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- add code-fences with code-hints so that the right hightlighting is applied
- replace `*` for `-` in bullet-lists for consistency with other parts of the
documentation.
- reduced number of "notes", either by combining some, or by changing some
to regular text.
- removed "line numbers" from some examples, because there's only four lines,
which should not need really need line numbers.
- reformat some notes to our new format
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
Silvin Lubecki
Erik Humphrey
Sebastiaan van Stijn
Tianon Gravi
Chris Vermilion
OKA Naoya
Jon Zeolla
DongGeon Lee
rochfeu
Andres Leon Rangel
Benjamin Böhmke
Kyle
Eric Engestrom
Charlotte Mach
Tibor Vass
Albin Kerouanton
horpto
eyherabh
Tonis Tiigi
Akihiro Suda
Brian Wieder
dito
Saswat Bhattacharya
Sargun Dhillon
Simon Heimberg
devisions
Maciej Kalisz
Drew Erny
Dominik Braun