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authorTomSweeneyRedHat <tsweeney@redhat.com>2021-11-19 20:38:49 -0500
committerTomSweeneyRedHat <tsweeney@redhat.com>2021-11-19 20:38:55 -0500
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[CI:DOCS] Add java TZ note to run manpage
Add a note to show how to workaround the `--tz` option being ignored in the run command. Related to: https://bugzilla.redhat.com/show_bug.cgi?id=1984251 Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
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@@ -1848,6 +1848,25 @@ $ podman run --name container1 --personaity=LINUX32 fedora bash
$ podman run --name container1 --rootfs /path/to/rootfs:O bash
```
+### Handling Timezones in java applications in a container.
+
+In order to use a timezone other than UTC when running a
+Java application within a container, the `TZ` environment variable must be
+set within the container. Java applications will ignore the value set with the
+`--tz` option. This will be corrected in a later relase.
+
+```
+# Example run
+podman run -ti --rm -e TZ=EST mytzimage
+lrwxrwxrwx. 1 root root 29 Nov 3 08:51 /etc/localtime -> ../usr/share/zoneinfo/Etc/UTC
+Now with default timezone:
+Fri Nov 19 18:10:55 EST 2021
+Java default sees the following timezone:
+2021-11-19T18:10:55.651130-05:00
+Forcing UTC:
+Fri Nov 19 23:10:55 UTC 2021
+```
+
### Rootless Containers
Podman runs as a non root user on most systems. This feature requires that a new enough version of **shadow-utils**