Files
Paul Holzinger 57b022782b quadlet: ensure user units wait for the network
As documented in the issue there is no way to wait for system units from
the user session[1]. This causes problems for rootless quadlet units as
they might be started before the network is fully up. TWhile this was
always the case and thus was never really noticed the main thing that
trigger a bunch of errors was the switch to pasta.

Pasta requires the network to be fully up in order to correctly select
the right "template" interface based on the routes. If it cannot find a
suitable interface it just fails and we cannot start the container
understandingly leading to a lot of frustration from users.

As there is no sign of any movement on the systemd issue we work around
here by using our own user unit that check if the system session
network-online.target it ready.

Now for testing it is a bit complicated. While we do now correctly test
the root and rootless generator since commit ada75c0bb8 the resulting
Wants/After= lines differ between them and there is no logic in the
testfiles themself to say if root/rootless to match specifics. One idea
was to use `assert-key-is-rootless/root` but that seemed like more
duplication for little reason so use a regex and allow both to make it
pass always. To still have some test coverage add a check in the system
test to ask systemd if we did indeed have the right depdendencies where
we can check for exact root/rootless name match.

[1] https://github.com/systemd/systemd/issues/3312

Fixes #22197

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2024-10-18 11:43:48 +02:00
..
2024-10-05 09:10:15 +02:00
2024-09-05 09:56:48 -04:00
2022-09-15 14:35:06 -06:00

Podman Documentation

The online man pages and other documents regarding Podman can be found at Read The Docs. The man pages can be found under the Commands link on that page.

Build the Docs

Directory Structure

Directory
Markdown source for man pages docs/source/markdown/
man pages aliases as .so files docs/source/markdown/links/
target for output docs/build
man pages docs/build/man
remote linux man pages docs/build/remote/linux
remote darwin man pages docs/build/remote/darwin
remote windows html pages docs/build/remote/windows

Support files

docs/remote-docs.sh Read the docs/source/markdown files and format for each platform
docs/links-to-html.lua pandoc filter to do aliases for html files
docs/use-pagetitle.lua pandoc filter to set html document title

Manpage Syntax

The syntax for the formatting of all man pages can be found here.

API Reference

The latest online documentation is automatically generated by two cooperating automation systems based on committed upstream source code. Firstly, the Cirrus-CI docs task builds pkg/api/swagger.yaml and uploads it to a public-facing location (Google Storage Bucket - an online service for storing unstructured data). Second, Read The Docs reacts to the github.com repository change, building the content for the libpod documentation site. This site includes for the API section, some javascript which consumes the uploaded swagger.yaml file directly from the Google Storage Bucket.

Since there are multiple systems and local cache is involved, it's possible that updates to documentation (especially the swagger/API docs) will lag by 10-or-so minutes. However, because the client (i.e. your web browser) is fetching content from multiple locations that do not share a common domain, accessing the API section may show a stack-trace similar to the following:

JavaScript Stack Trace Image

If reloading the page, or clearing your local cache does not fix the problem, it is likely caused by broken metadata needed to protect clients from cross-site-scripting style attacks. Please notify a maintainer so they may investigate how/why the swagger.yaml file's CORS-metadata is incorrect, or the file isn't accessible for some other reason.

Local Testing

To build standard man pages, run make docs. Results will be in docs/build/man.

To build HTMLized man pages: Assuming that you have the dependencies installed, then also install (showing Fedora in the example):

$ sudo dnf install python3-sphinx python3-recommonmark
$ pip install sphinx-markdown-tables myst_parser

(The above dependencies are current as of 2022-09-15. If you experience problems, please see requirements.txt in this directory, it will almost certainly be more up-to-date than this README.)

After that completes, cd to the docs directory in your Podman sandbox and then do make html.

You can then preview the html files in docs/build/html with:

python -m http.server 8000 --directory build/html

...and point your web browser at http://localhost:8000/