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258 lines
6.4 KiB
Bash
258 lines
6.4 KiB
Bash
#!/usr/bin/env bash
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# -*- coding: utf-8; mode: sh -*-
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# shellcheck disable=SC2119
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# shellcheck source=utils/lib.sh
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source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
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# ----------------------------------------------------------------------------
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# config
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# ----------------------------------------------------------------------------
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FILTRON_ETC="/etc/filtron"
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FILTRON_RULES="$FILTRON_ETC/rules.json"
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FILTRON_API="127.0.0.1:4005"
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FILTRON_LISTEN="127.0.0.1:4004"
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FILTRON_TARGET="127.0.0.1:8888"
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SERVICE_NAME="filtron"
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SERVICE_USER="${SERVICE_NAME}"
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SERVICE_HOME="/home/${SERVICE_USER}"
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SERVICE_SYSTEMD_UNIT="${SYSTEMD_UNITS}/${SERVICE_NAME}.service"
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# shellcheck disable=SC2034
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SERVICE_GROUP="${SERVICE_USER}"
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GO_ENV="${SERVICE_HOME}/.go_env"
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GO_PKG_URL="https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz"
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GO_TAR=$(basename "$GO_PKG_URL")
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CONFIG_FILES=(
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"${FILTRON_RULES}"
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"${SERVICE_SYSTEMD_UNIT}"
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)
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# ----------------------------------------------------------------------------
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usage(){
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# ----------------------------------------------------------------------------
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# shellcheck disable=SC1117
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cat <<EOF
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usage:
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$(basename "$0") shell
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$(basename "$0") install [all|user]
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$(basename "$0") remove [all]
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$(basename "$0") activate [server]
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$(basename "$0") deactivate [server]
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$(basename "$0") show [server]
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shell
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start interactive shell from user ${SERVICE_USER}
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show server
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show server status and log
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install / remove
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all - complete setup of filtron server
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install user
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add service user '$SERVICE_USER' at $SERVICE_HOME
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EOF
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[ ! -z ${1+x} ] && echo -e "$1"
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}
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main(){
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rst_title "$SERVICE_NAME" part
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local _usage="ERROR: unknown or missing $1 command $2"
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case $1 in
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--source-only) ;;
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-h|--help) usage ;;
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shell)
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sudo_or_exit
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interactive_shell
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;;
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show)
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case $2 in
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server)
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sudo_or_exit
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show_server
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;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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install)
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sudo_or_exit
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case $2 in
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all) install_all ;;
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user) assert_user ;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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remove)
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sudo_or_exit
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case $2 in
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all) remove_all;;
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user) remove_user ;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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activate)
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sudo_or_exit
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case $2 in
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server) activate_server ;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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deactivate)
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sudo_or_exit
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case $2 in
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server) deactivate_server ;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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*) usage "ERROR: unknown or missing command $1"; exit 42;;
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esac
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}
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install_all() {
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rst_title "Install $SERVICE_NAME (service)"
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assert_user
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wait_key
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install_go
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wait_key
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install_filtron
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wait_key
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install_server
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wait_key
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}
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remove_all() {
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rst_title "De-Install $SERVICE_NAME (service)"
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remove_server
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wait_key
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remove_user
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rm -r "$FILTRON_ETC" 2>&1 | prefix_stdout
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wait_key
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}
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install_server() {
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rst_title "Install System-D Unit ${SERVICE_NAME}.service" section
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echo
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install_template ${SERVICE_SYSTEMD_UNIT} root root 644
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wait_key
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activate_server
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}
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remove_server() {
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if ! ask_yn "Do you really want to deinstall $SERVICE_NAME?"; then
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return
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fi
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deactivate_server
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rm "${SERVICE_SYSTEMD_UNIT}" 2>&1 | prefix_stdout
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}
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activate_server () {
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rst_title "Activate $SERVICE_NAME (service)" section
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echo
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tee_stderr <<EOF | bash 2>&1 | prefix_stdout
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systemctl enable $SERVICE_NAME.service
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systemctl restart $SERVICE_NAME.service
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EOF
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tee_stderr <<EOF | bash 2>&1 | prefix_stdout
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systemctl status $SERVICE_NAME.service
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EOF
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}
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deactivate_server () {
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rst_title "De-Activate $SERVICE_NAME (service)" section
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echo
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tee_stderr <<EOF | bash 2>&1 | prefix_stdout
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systemctl stop $SERVICE_NAME.service
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systemctl disable $SERVICE_NAME.service
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EOF
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}
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assert_user() {
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rst_title "user $SERVICE_USER" section
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echo
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tee_stderr 1 <<EOF | bash | prefix_stdout
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sudo -H adduser --shell /bin/bash --system --home $SERVICE_HOME --group --gecos 'Filtron' $SERVICE_USER
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sudo -H usermod -a -G shadow $SERVICE_USER
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groups $SERVICE_USER
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EOF
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SERVICE_HOME="$(sudo -i -u "$SERVICE_USER" echo \$HOME)"
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export SERVICE_HOME
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echo "export SERVICE_HOME=$SERVICE_HOME"
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cat > "$GO_ENV" <<EOF
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export GOPATH=\$HOME/go-apps
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export PATH=\$PATH:\$HOME/local/go/bin:\$GOPATH/bin
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EOF
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echo "Environment $GO_ENV has been setup."
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tee_stderr <<EOF | sudo -i -u $SERVICE_USER
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grep -qFs -- 'source $GO_ENV' ~/.profile || echo 'source $GO_ENV' >> ~/.profile
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EOF
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}
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remove_user() {
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rst_title "Drop $SERVICE_USER HOME" section
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if ask_yn "Do you really want to drop $SERVICE_USER home folder?"; then
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userdel -r -f "$SERVICE_USER" 2>&1 | prefix_stdout
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else
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rst_para "Leave HOME folder $(du -sh "$SERVICE_HOME") unchanged."
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fi
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}
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interactive_shell(){
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echo "// exit with CTRL-D"
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sudo -H -u ${SERVICE_USER} -i
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}
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_service_prefix=" |$SERVICE_USER| "
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install_go(){
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rst_title "Install Go in user's HOME" section
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rst_para "download and install go binary .."
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cache_download "${GO_PKG_URL}" "${GO_TAR}"
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tee_stderr 0.1 <<EOF | sudo -i -u "$SERVICE_USER" | prefix_stdout "$_service_prefix"
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echo \$PATH
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echo \$GOPATH
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mkdir -p \$HOME/local
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rm -rf \$HOME/local/go
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tar -C \$HOME/local -xzf ${CACHE}/${GO_TAR}
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EOF
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echo
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sudo -i -u "$SERVICE_USER" <<EOF | prefix_stdout
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! which go >/dev/null && echo "Go Installation not found in PATH!?!"
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which go >/dev/null && go version && echo "congratulations -- Go installation OK :)"
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EOF
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}
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install_filtron() {
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rst_title "Install filtron in user's ~/go-apps" section
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echo
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tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_service_prefix"
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go get -v -u github.com/asciimoo/filtron
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EOF
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install_template --no-eval "$FILTRON_RULES" root root 644
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}
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show_server () {
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rst_title "server status & log"
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echo
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systemctl status filtron.service
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echo
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read -s -n1 -t 5 -p "// use CTRL-C to stop monitoring the log"
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echo
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while true; do
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trap break 2
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journalctl -f -u filtron
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done
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return 0
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}
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# ----------------------------------------------------------------------------
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main "$@"
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# ----------------------------------------------------------------------------
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