forked from zaclys/searxng
Merge pull request #66 from return42/docker-buildx
review of docker entry point & docker documentation
This commit is contained in:
Alexandre Flament
GitHub
commit
94e6ed6110
@ -10,7 +10,7 @@ ARG SEARX_UID=977
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RUN addgroup -g ${SEARX_GID} searx && \
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adduser -u ${SEARX_UID} -D -h /usr/local/searx -s /bin/sh -G searx searx
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ENV INSTANCE_NAME=searx \
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ENV INSTANCE_NAME=searxng \
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AUTOCOMPLETE= \
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BASE_URL= \
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MORTY_KEY= \
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2
Makefile
2
Makefile
@ -54,6 +54,8 @@ PHONY += test ci.test test.shell
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ci.test: test.pep8 test.pylint test.unit test.robot
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test: test.pep8 test.pylint test.unit test.robot test.shell
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test.shell:
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$(Q)shellcheck -x -s dash \
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dockerfiles/docker-entrypoint.sh
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$(Q)shellcheck -x -s bash \
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utils/brand.env \
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./manage \
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@ -1,62 +1,66 @@
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#!/bin/sh
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help() {
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printf "Command line:\n\n"
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printf " -h Display this help\n"
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printf " -d Dry run to update the configuration files.\n"
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printf " -f Always update on the configuration files (existing files are renamed with the .old suffix)\n"
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printf " Without this option, the new configuration files are copied with the .new suffix\n"
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printf "\nEnvironment variables:\n\n"
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printf " INSTANCE_NAME settings.yml : general.instance_name\n"
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printf " AUTOCOMPLETE settings.yml : search.autocomplete\n"
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printf " BASE_URL settings.yml : server.base_url\n"
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printf " MORTY_URL settings.yml : result_proxy.url\n"
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printf " MORTY_KEY settings.yml : result_proxy.key\n"
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printf " BIND_ADDRESS uwsgi bind to the specified TCP socket using HTTP protocol. Default value: \"${DEFAULT_BIND_ADDRESS}\"\n"
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printf "\nVolume:\n\n"
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printf " /etc/searx the docker entry point copies settings.yml and uwsgi.ini in this directory (see the -f command line option)\n"
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echo
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exit 0
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cat <<EOF
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Command line:
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-h Display this help
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-d Dry run to update the configuration files.
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-f Always update on the configuration files (existing files are renamed with
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the .old suffix). Without this option, the new configuration files are
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copied with the .new suffix
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Environment variables:
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INSTANCE_NAME settings.yml : general.instance_name
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AUTOCOMPLETE settings.yml : search.autocomplete
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BASE_URL settings.yml : server.base_url
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MORTY_URL settings.yml : result_proxy.url
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MORTY_KEY settings.yml : result_proxy.key
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BIND_ADDRESS uwsgi bind to the specified TCP socket using HTTP protocol.
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Default value: ${DEFAULT_BIND_ADDRESS}
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Volume:
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/etc/searx the docker entry point copies settings.yml and uwsgi.ini in
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this directory (see the -f command line option)"
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EOF
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}
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export DEFAULT_BIND_ADDRESS="0.0.0.0:8080"
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if [ -z "${BIND_ADDRESS}" ]; then
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export BIND_ADDRESS="${DEFAULT_BIND_ADDRESS}"
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fi
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# Parse special command line
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# see docs/admin/installation-docker.rst
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# display the help message without the version
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if [ "$1" = "help" ]; then
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help
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fi
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# Version
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export SEARX_VERSION=$(su searx -c 'python3 -c "import six; import searx.version; six.print_(searx.version.VERSION_STRING)"' 2>/dev/null)
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printf 'searx version %s\n\n' "${SEARX_VERSION}"
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export BIND_ADDRESS="${BIND_ADDRESS:-${DEFAULT_BIND_ADDRESS}}"
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# Parse command line
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FORCE_CONF_UPDATE=0
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DRY_RUN=0
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while getopts "fdh" option
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do
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case $option in
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f)
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FORCE_CONF_UPDATE=1
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;;
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d)
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DRY_RUN=1
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;;
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h)
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help
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f) FORCE_CONF_UPDATE=1 ;;
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d) DRY_RUN=1 ;;
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h)
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help
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exit 0
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;;
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*)
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echo "unknow option ${option}"
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exit 42
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;;
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esac
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done
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get_searx_version(){
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su searx -c \
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'python3 -c "import six; import searx.version; six.print_(searx.version.VERSION_STRING)"' \
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2>/dev/null
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}
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SEARX_VERSION="$(get_searx_version)"
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export SEARX_VERSION
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echo "searx version ${SEARX_VERSION}"
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# helpers to update the configuration files
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patch_uwsgi_settings() {
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CONF="$1"
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# Nothing
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}
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patch_searx_settings() {
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@ -74,10 +78,11 @@ patch_searx_settings() {
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"${CONF}"
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# Morty configuration
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if [ ! -z "${MORTY_KEY}" -a ! -z "${MORTY_URL}" ]; then
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sed -i -e "s/image_proxy : False/image_proxy : True/g" \
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"${CONF}"
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cat >> "${CONF}" <<-EOF
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if [ -n "${MORTY_KEY}" ] && [ -n "${MORTY_URL}" ]; then
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sed -i -e "s/image_proxy : False/image_proxy : True/g" \
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"${CONF}"
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cat >> "${CONF}" <<-EOF
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# Morty configuration
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result_proxy:
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@ -96,35 +101,35 @@ update_conf() {
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PATCH_REF_CONF="$4"
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if [ -f "${CONF}" ]; then
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if [ "${REF_CONF}" -nt "${CONF}" ]; then
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# There is a new version
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if [ $FORCE_CONF_UPDATE -ne 0 ]; then
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# Replace the current configuration
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printf '⚠️ Automaticaly update %s to the new version\n' "${CONF}"
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if [ ! -f "${OLD_CONF}" ]; then
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printf 'The previous configuration is saved to %s\n' "${OLD_CONF}"
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mv "${CONF}" "${OLD_CONF}"
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fi
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cp "${REF_CONF}" "${CONF}"
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$PATCH_REF_CONF "${CONF}"
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else
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# Keep the current configuration
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printf '⚠️ Check new version %s to make sure searx is working properly\n' "${NEW_CONF}"
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cp "${REF_CONF}" "${NEW_CONF}"
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$PATCH_REF_CONF "${NEW_CONF}"
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fi
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else
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printf 'Use existing %s\n' "${CONF}"
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fi
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if [ "${REF_CONF}" -nt "${CONF}" ]; then
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# There is a new version
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if [ "$FORCE_CONF_UPDATE" -ne 0 ]; then
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# Replace the current configuration
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printf '⚠️ Automaticaly update %s to the new version\n' "${CONF}"
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if [ ! -f "${OLD_CONF}" ]; then
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printf 'The previous configuration is saved to %s\n' "${OLD_CONF}"
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mv "${CONF}" "${OLD_CONF}"
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fi
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cp "${REF_CONF}" "${CONF}"
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$PATCH_REF_CONF "${CONF}"
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else
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# Keep the current configuration
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printf '⚠️ Check new version %s to make sure searx is working properly\n' "${NEW_CONF}"
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cp "${REF_CONF}" "${NEW_CONF}"
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$PATCH_REF_CONF "${NEW_CONF}"
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fi
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else
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printf 'Use existing %s\n' "${CONF}"
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fi
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else
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printf 'Create %s\n' "${CONF}"
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cp "${REF_CONF}" "${CONF}"
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$PATCH_REF_CONF "${CONF}"
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printf 'Create %s\n' "${CONF}"
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cp "${REF_CONF}" "${CONF}"
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$PATCH_REF_CONF "${CONF}"
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fi
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}
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# make sure there are uwsgi settings
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update_conf ${FORCE_CONF_UPDATE} "${UWSGI_SETTINGS_PATH}" "/usr/local/searx/dockerfiles/uwsgi.ini" "patch_uwsgi_settings"
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update_conf "${FORCE_CONF_UPDATE}" "${UWSGI_SETTINGS_PATH}" "/usr/local/searx/dockerfiles/uwsgi.ini" "patch_uwsgi_settings"
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# make sure there are searx settings
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update_conf "${FORCE_CONF_UPDATE}" "${SEARX_SETTINGS_PATH}" "/usr/local/searx/searx/settings.yml" "patch_searx_settings"
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@ -135,7 +140,6 @@ if [ $DRY_RUN -eq 1 ]; then
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exit
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fi
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#
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touch /var/run/uwsgi-logrotate
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chown -R searx:searx /var/log/uwsgi /var/run/uwsgi-logrotate
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unset MORTY_KEY
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@ -1,60 +1,171 @@
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.. _installation docker:
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===================
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Docker installation
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===================
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.. contents:: Contents
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:depth: 2
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:local:
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:backlinks: entry
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.. _ENTRYPOINT: https://docs.docker.com/engine/reference/builder/#entrypoint
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.. _searxng-docker: https://github.com/searxng/searxng-docker
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.. _[filtron]: https://hub.docker.com/r/dalf/filtron
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.. _[morty]: https://hub.docker.com/r/dalf/morty
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.. _[caddy]: https://hub.docker.com/_/caddy
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----
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.. sidebar:: info
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Docker image searxng/searxng
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============================
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- :origin:`Dockerfile`
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- `searxng/searxng @dockerhub <https://hub.docker.com/r/searxng/searxng>`_
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- `Docker overview <https://docs.docker.com/get-started/overview>`_
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- `Docker Cheat Sheet <https://www.docker.com/sites/default/files/d8/2019-09/docker-cheat-sheet.pdf>`_
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- `Alpine Linux <https://alpinelinux.org>`_ `(wiki) <https://en.wikipedia.org/wiki/Alpine_Linux>`__ `apt packages <https://pkgs.alpinelinux.org/packages>`_
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- Alpine's ``/bin/sh`` is :man:`dash`
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.. tip::
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The docker image is `searxng/searxng <https://hub.docker.com/r/searxng/searxng>`_ (based on `github.com/searxng/searxng <https://github.com/searxng/searxng>`_).
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If you intend to create a public instance using Docker, use our well
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maintained searxng-docker_ image which includes
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Make sure you have `installed Docker <https://docs.docker.com/get-docker/>`_. For instance, you can deploy a local instance:
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- :ref:`protection <searx filtron>` `[filtron]`_,
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- a :ref:`result proxy <searx morty>` `[morty]`_ and
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- a HTTPS reverse proxy `[caddy]`_.
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Make sure you have `installed Docker <https://docs.docker.com/get-docker/>`_ and
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on Linux, don't forget to add your user to the docker group (log out and log
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back in so that your group membership is re-evaluated):
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.. code:: sh
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export PORT=80
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docker pull searxng/searxng
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docker run --rm -d -v ${PWD}/searx:/etc/searx -p $PORT:8080 -e BASE_URL=http://localhost:$PORT/ searxng/searxng
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$ sudo usermod -a -G docker $USER
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Go to ``http://localhost:$PORT``.
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Inside ``${PWD}/searx``, you will find ``settings.yml`` and ``uwsgi.ini``.
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You can modify these files according to your needs and restart the Docker image.
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searxng/searxng
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===============
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.. sidebar:: ``docker run``
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- `-\-rm <https://docs.docker.com/engine/reference/run/#clean-up---rm>`__
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automatically clean up when container exits
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- `-d <https://docs.docker.com/engine/reference/run/#detached--d>`__ start
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detached container
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- `-v <https://docs.docker.com/engine/reference/run/#volume-shared-filesystems>`__
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mount volume ``HOST:CONTAINER``
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The docker image is based on :origin:`Dockerfile` and available from
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`searxng/searxng @dockerhub`_. Using the docker image is quite easy, for
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instance you can pull the `searxng/searxng @dockerhub`_ image and deploy a local
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instance using `docker run <https://docs.docker.com/engine/reference/run/>`_:
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.. code:: sh
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$ mkdir my-instance
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$ cd my-instance
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$ export PORT=8080
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$ docker pull searxng/searxng
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$ docker run --rm \
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-d -p ${PORT}:8080 \
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-v "${PWD}/searx:/etc/searx" \
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-e "BASE_URL=http://localhost:$PORT/" \
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-e "INSTANCE_NAME=my-instance" \
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searxng/searxng
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2f998.... # container's ID
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Open your WEB browser and visit the URL:
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.. code:: sh
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$ xdg-open "http://localhost:$PORT"
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Inside ``${PWD}/searx``, you will find ``settings.yml`` and ``uwsgi.ini``. You
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can modify these files according to your needs and restart the Docker image.
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.. code:: sh
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$ docker container restart 2f998
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Use command ``container ls`` to list running containers, add flag `-a
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<https://docs.docker.com/engine/reference/commandline/container_ls>`__ to list
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exited containers also. With ``container stop`` a running container can be
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stoped. To get rid of a container use ``container rm``:
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.. code:: sh
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$ docker container ls
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CONTAINER ID IMAGE COMMAND CREATED ...
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2f998d725993 searxng/searxng "/sbin/tini -- /usr/…" 7 minutes ago ...
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$ docker container stop 2f998
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$ docker container rm 2f998
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.. sidebar:: Warning
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This might remove all docker items, not only those from searxng.
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If you won't use docker anymore and want to get rid of all conatiners & images
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use the following *prune* command:
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.. code:: sh
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$ docker stop $(docker ps -aq) # stop all containers
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$ docker system prune # make some housekeeping
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$ docker rmi -f $(docker images -q) # drop all images
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shell inside container
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----------------------
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.. sidebar:: Bashism
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- `A tale of two shells: bash or dash <https://lwn.net/Articles/343924/>`_
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- `How to make bash scripts work in dash <http://mywiki.wooledge.org/Bashism>`_
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- `Checking for Bashisms <https://dev.to/bowmanjd/writing-bash-scripts-that-are-not-only-bash-checking-for-bashisms-and-testing-with-dash-1bli>`_
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Like in many other distributions, Alpine's `/bin/sh
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<https://wiki.ubuntu.com/DashAsBinSh>`__ is :man:`dash`. Dash is meant to be
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`POSIX-compliant <https://pubs.opengroup.org/onlinepubs/9699919799>`__.
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Compared to debian, in the Alpine image :man:`bash` is not installed. The
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:origin:`dockerfiles/docker-entrypoint.sh` script is checked *against dash*
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(``make tests.shell``).
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To open a shell inside the container:
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.. code:: sh
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$ docker exec -it 2f998 sh
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Build the image
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===============
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It's also possible to build SearXNG from the embedded :origin:`Dockerfile`::
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$ git clone https://github.com/searxng/searxng.git
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$ cd searx
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$ make docker.build
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...
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Successfully built 49586c016434
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Successfully tagged searxng/searxng:latest
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Successfully tagged searxng/searxng:1.0.0-209-9c823800-dirty
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$ docker images
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REPOSITORY TAG IMAGE ID CREATED SIZE
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searxng/searxng 1.0.0-209-9c823800-dirty 49586c016434 13 minutes ago 308MB
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searxng/searxng latest 49586c016434 13 minutes ago 308MB
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alpine 3.13 6dbb9cc54074 3 weeks ago 5.61MB
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Command line
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------------
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============
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.. sidebar:: docker run
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Use flags ``-it`` for `interactive processes
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<https://docs.docker.com/engine/reference/run/#foreground>`__.
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In the :origin:`Dockerfile` the ENTRYPOINT_ is defined as
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:origin:`dockerfiles/docker-entrypoint.sh`
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.. code:: sh
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docker run --rm -it searxng/searxng -h
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.. program-output:: ../dockerfiles/docker-entrypoint.sh help
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Build the image
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---------------
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It's also possible to build SearXNG from the embedded Dockerfile.
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.. code:: sh
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git clone https://github.com/searxng/searxng.git
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cd searx
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make docker.build
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Public instance
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===============
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If you intend to create a public instance using Docker, see https://github.com/searx/searx-docker
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.. program-output:: ../dockerfiles/docker-entrypoint.sh -h
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