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authorValentin Rothberg <rothberg@redhat.com>2020-07-06 11:14:33 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-07-06 11:14:33 +0200
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auto-update: clarify systemd-unit requirements
Clarify in the help message and the man page that auto updates only work with systemd units that are similar to the ones from `generate systemd --new`. Units that merely start/stop a container do not work as they will use the same image. Fixes: #6793 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'docs/source')
-rw-r--r--docs/source/markdown/podman-auto-update.1.md3
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/source/markdown/podman-auto-update.1.md b/docs/source/markdown/podman-auto-update.1.md
index f37280cda..b6941362a 100644
--- a/docs/source/markdown/podman-auto-update.1.md
+++ b/docs/source/markdown/podman-auto-update.1.md
@@ -23,6 +23,9 @@ Note that `podman auto-update` relies on systemd and requires a fully-qualified
This enforcement is necessary to know which image to actually check and pull.
If an image ID was used, Podman would not know which image to check/pull anymore.
+Moreover, the systemd units are expected to be generated with `podman-generate-systemd --new`, or similar units that create new containers in order to run the updated images.
+Systemd units that start and stop a container cannot run a new image.
+
## OPTIONS
**--authfile**=*path*