searxng/dockerfiles/docker-entrypoint.sh
2021-10-02 17:18:05 +02:00

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#!/bin/sh
help() {
cat <<EOF
Command line:
-h Display this help
-d Dry run to update the configuration files.
-f Always update on the configuration files (existing files are renamed with
the .old suffix). Without this option, the new configuration files are
copied with the .new suffix
Environment variables:
INSTANCE_NAME settings.yml : general.instance_name
AUTOCOMPLETE settings.yml : search.autocomplete
BASE_URL settings.yml : server.base_url
MORTY_URL settings.yml : result_proxy.url
MORTY_KEY settings.yml : result_proxy.key
BIND_ADDRESS uwsgi bind to the specified TCP socket using HTTP protocol.
Default value: ${DEFAULT_BIND_ADDRESS}
Volume:
/etc/searx the docker entry point copies settings.yml and uwsgi.ini in
this directory (see the -f command line option)"
EOF
}
export DEFAULT_BIND_ADDRESS="0.0.0.0:8080"
export BIND_ADDRESS="${BIND_ADDRESS:-${DEFAULT_BIND_ADDRESS}}"
# Parse command line
FORCE_CONF_UPDATE=0
DRY_RUN=0
while getopts "fdh" option
do
case $option in
f) FORCE_CONF_UPDATE=1 ;;
d) DRY_RUN=1 ;;
h)
help
exit 0
;;
*)
echo "unknow option ${option}"
exit 42
;;
esac
done
get_searx_version(){
su searx -c \
'python3 -c "import six; import searx.version; six.print_(searx.version.VERSION_STRING)"' \
2>/dev/null
}
SEARX_VERSION="$(get_searx_version)"
export SEARX_VERSION
echo "searx version ${SEARX_VERSION}"
# helpers to update the configuration files
patch_uwsgi_settings() {
CONF="$1"
}
patch_searx_settings() {
CONF="$1"
# Make sure that there is trailing slash at the end of BASE_URL
# see https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#Shell-Parameter-Expansion
export BASE_URL="${BASE_URL%/}/"
# update settings.yml
sed -i -e "s|base_url : False|base_url : ${BASE_URL}|g" \
-e "s/instance_name : \"searxng\"/instance_name : \"${INSTANCE_NAME}\"/g" \
-e "s/autocomplete : \"\"/autocomplete : \"${AUTOCOMPLETE}\"/g" \
-e "s/ultrasecretkey/$(openssl rand -hex 32)/g" \
"${CONF}"
# Morty configuration
if [ -n "${MORTY_KEY}" ] && [ -n "${MORTY_URL}" ]; then
sed -i -e "s/image_proxy : False/image_proxy : True/g" \
"${CONF}"
cat >> "${CONF}" <<-EOF
# Morty configuration
result_proxy:
url : ${MORTY_URL}
key : !!binary "${MORTY_KEY}"
EOF
fi
}
update_conf() {
FORCE_CONF_UPDATE=$1
CONF="$2"
NEW_CONF="${2}.new"
OLD_CONF="${2}.old"
REF_CONF="$3"
PATCH_REF_CONF="$4"
if [ -f "${CONF}" ]; then
if [ "${REF_CONF}" -nt "${CONF}" ]; then
# There is a new version
if [ "$FORCE_CONF_UPDATE" -ne 0 ]; then
# Replace the current configuration
printf '⚠️ Automaticaly update %s to the new version\n' "${CONF}"
if [ ! -f "${OLD_CONF}" ]; then
printf 'The previous configuration is saved to %s\n' "${OLD_CONF}"
mv "${CONF}" "${OLD_CONF}"
fi
cp "${REF_CONF}" "${CONF}"
$PATCH_REF_CONF "${CONF}"
else
# Keep the current configuration
printf '⚠️ Check new version %s to make sure searx is working properly\n' "${NEW_CONF}"
cp "${REF_CONF}" "${NEW_CONF}"
$PATCH_REF_CONF "${NEW_CONF}"
fi
else
printf 'Use existing %s\n' "${CONF}"
fi
else
printf 'Create %s\n' "${CONF}"
cp "${REF_CONF}" "${CONF}"
$PATCH_REF_CONF "${CONF}"
fi
}
# make sure there are uwsgi settings
update_conf "${FORCE_CONF_UPDATE}" "${UWSGI_SETTINGS_PATH}" "/usr/local/searx/dockerfiles/uwsgi.ini" "patch_uwsgi_settings"
# make sure there are searx settings
update_conf "${FORCE_CONF_UPDATE}" "${SEARXNG_SETTINGS_PATH}" "/usr/local/searx/searx/settings.yml" "patch_searx_settings"
# dry run (to update configuration files, then inspect them)
if [ $DRY_RUN -eq 1 ]; then
printf 'Dry run\n'
exit
fi
touch /var/run/uwsgi-logrotate
chown -R searx:searx /var/log/uwsgi /var/run/uwsgi-logrotate
unset MORTY_KEY
# Start uwsgi
printf 'Listen on %s\n' "${BIND_ADDRESS}"
exec su-exec searx:searx uwsgi --master --http-socket "${BIND_ADDRESS}" "${UWSGI_SETTINGS_PATH}"