Commit Graph

6 Commits

Author SHA1 Message Date
Paul Holzinger
070d7c3ad3 Revert "Rewrite the Quadlet documentation."
This reverts commit c12b1b32bc.

The content contains incorrect information and misses a lot of details
from the previous page that must be restored.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2025-09-11 19:00:19 +02:00
Paul Holzinger
bb422c8372 Revert "Change the syntax to not depend on jinja2."
This reverts commit 9de737bf29.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2025-09-11 19:00:17 +02:00
Jan Kaluza
9de737bf29 Change the syntax to not depend on jinja2.
Signed-off-by: Jan Kaluza <jkaluza@redhat.com>
2025-09-02 16:04:34 +02:00
Jan Kaluza
c12b1b32bc Rewrite the Quadlet documentation.
This commit does the following:

- Splits the podman-systemd.unit.5.md into multiple files - one for each
  quadlet file type, podman-quadlet.7.md for general quadlet information
  and podman-quadlet-basic-usage.7.md for quadlet examples.
- Removes the original podman-systemd.unit.5.md file.
- Adds support for jinja2 templating language in the markdown_preprocess.
- Uses jinja2 in options/*.md to use the single .md file for both podman
  subcommands man-pages and quadlet man-pages. This deduplicates
  the Quadlet man-pages a lot.
- Adds new `@@option quadlet:source.md` preprocess command to import
  such .md files from options directory.

Signed-off-by: Jan Kaluza <jkaluza@redhat.com>
2025-09-02 12:49:45 +02:00
Jan Rodák
a1249425bd Configure HealthCheck with podman update
New flags in a `podman update` can change the configuration of HealthCheck when the container is started, without having to restart or recreate the container.

This can help determine why a given container suddenly started failing HealthCheck without interfering with the services it provides. For example, reconfigure HealthCheck to keep logs longer than the usual last X results, store logs to other destinations, etc.

Fixes: https://issues.redhat.com/browse/RHEL-60561

Signed-off-by: Jan Rodák <hony.com@seznam.cz>
2024-11-19 19:44:14 +01:00
Jan Rodák
de856dab99 Add --health-max-log-count, --health-max-log-size, --health-log-destination flags
These flags can affect the output of the HealtCheck log. Currently, when a container is configured with HealthCheck, the output from the HealthCheck command is only logged to the container status file, which is accessible via `podman inspect`.
It is also limited to the last five executions and the first 500 characters per execution.

This makes debugging past problems very difficult, since the only information available about the failure of the HealthCheck command is the generic `healthcheck service failed` record.

- The `--health-log-destination` flag sets the destination of the HealthCheck log.
  - `none`: (default behavior) `HealthCheckResults` are stored in overlay containers. (For example: `$runroot/healthcheck.log`)
  - `directory`: creates a log file named `<container-ID>-healthcheck.log` with JSON `HealthCheckResults` in the specified directory.
  - `events_logger`: The log will be written with logging mechanism set by events_loggeri. It also saves the log to a default directory, for performance on a system with a large number of logs.

- The `--health-max-log-count` flag sets the maximum number of attempts in the HealthCheck log file.
  - A value of `0` indicates an infinite number of attempts in the log file.
  - The default value is `5` attempts in the log file.
- The `--health-max-log-size` flag sets the maximum length of the log stored.
  - A value of `0` indicates an infinite log length.
  - The default value is `500` log characters.

Add --health-max-log-count flag

Signed-off-by: Jan Rodák <hony.com@seznam.cz>

Add --health-max-log-size flag

Signed-off-by: Jan Rodák <hony.com@seznam.cz>

Add --health-log-destination flag

Signed-off-by: Jan Rodák <hony.com@seznam.cz>
2024-09-25 14:01:35 +02:00