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healtcheck phase 2

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integration of healthcheck into create and run as well as inspect.
healthcheck enhancements are as follows:

* add the following options to create|run so that non-docker images can
define healthchecks at the container level.
  * --healthcheck-command
  * --healthcheck-retries
  * --healthcheck-interval
  * --healthcheck-start-period

* podman create|run --healthcheck-command=none disables healthcheck as
described by an image.
* the healthcheck itself and the healthcheck "history" can now be
observed in podman inspect
* added the wiring for healthcheck history which logs the health history
of the container, the current failed streak attempts, and log entries
for the last five attempts which themselves have start and stop times,
result, and a 500 character truncated (if needed) log of stderr/stdout.

The timings themselves are not implemented in this PR but will be in
future enablement (i.e. next).

Signed-off-by: baude <bbaude@redhat.com>
This commit is contained in:
baude
2019-03-06 12:12:35 -06:00
parent 7038cac53c
commit 03716cf7f3
12 changed files with 351 additions and 61 deletions

17
docs/podman-create.1.md

@ -256,6 +256,23 @@ The following example maps uids 0-2000 in the container to the uids 30000-31999
Add additional groups to run as
**--healthchech**=""
Set or alter a healthcheck for a container. The value must be of the format of:
`[OPTIONS] CMD command`
where options can be any of the follow:
* --interval=DURATION (default: 30s)
* --timeout=DURATION (default: 30s)
* --start-period=DURATION (default: 0s)
* --retries=N (default: 3)
Note: options are *not* required.
The command is a command to be executed inside your container that determines your container health. The
command is required.
**--hostname**=""
Container host name

17
docs/podman-run.1.md

@ -264,6 +264,23 @@ The example maps gids 0-2000 in the container to the gids 30000-31999 on the hos
Add additional groups to run as
**--healthchech**=""
Set or alter a healthcheck for a container. The value must be of the format of:
`[OPTIONS] CMD command`
where options can be any of the follow:
* --interval=DURATION (default: 30s)
* --timeout=DURATION (default: 30s)
* --start-period=DURATION (default: 0s)
* --retries=N (default: 3)
Note: options are *not* required.
The command is a command to be executed inside your container that determines your container health. The
command is required.
**--hostname**=""
Container host name