From d59ef411949564518e3b5d0b5bbc1625ede45486 Mon Sep 17 00:00:00 2001 From: Valentin Rothberg Date: Mon, 6 Jul 2020 11:14:33 +0200 Subject: 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 --- docs/source/markdown/podman-auto-update.1.md | 3 +++ 1 file changed, 3 insertions(+) (limited to 'docs/source/markdown') diff --git a/docs/source/markdown/podman-auto-update.1.md b/docs/source/markdown/podman-auto-update.1.md index 90e581e42..73d75be1f 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* -- cgit v1.2.3-54-g00ecf