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nextcloud/Containers/watchtower/start.sh

32 lines
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#!/bin/bash
# Check if socket is available and readable
if ! [ -e "/var/run/docker.sock" ]; then
echo "Docker socket is not available. Cannot continue."
exit 1
elif ! test -r /var/run/docker.sock; then
echo "Docker socket is not readable by the root user. Cannot continue."
exit 1
fi
if [ -f /run/.containerenv ]; then
# If running under podman disable memory_swappiness setting in watchtower.
# It is a necessary workaround until https://github.com/containers/podman/issues/23824 gets fixed.
echo "Running under Podman. Setting WATCHTOWER_DISABLE_MEMORY_SWAPPINESS to 1."
export WATCHTOWER_DISABLE_MEMORY_SWAPPINESS=1
fi
if [ -n "$CONTAINER_TO_UPDATE" ]; then
# Map AIO_LOG_LEVEL to watchtower log level (watchtower uses 'warn' not 'warning')
case "${AIO_LOG_LEVEL:-warning}" in
warning) WATCHTOWER_LOG_LEVEL="warn" ;;
*) WATCHTOWER_LOG_LEVEL="${AIO_LOG_LEVEL:-warn}" ;;
esac
exec /watchtower --cleanup --log-level "$WATCHTOWER_LOG_LEVEL" --run-once "$CONTAINER_TO_UPDATE"
else
echo "'CONTAINER_TO_UPDATE' is not set. Cannot update anything."
exit 1
fi
exec "$@"