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|
#!/usr/bin/env bash
# -*- coding: utf-8; mode: sh -*-
# shellcheck disable=SC2119
# shellcheck source=utils/lib.sh
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
# ----------------------------------------------------------------------------
# config
# ----------------------------------------------------------------------------
FILTRON_ETC="/etc/filtron"
SERVICE_NAME="filtron"
SERVICE_USER="${SERVICE_NAME}"
SERVICE_HOME="/home/${SERVICE_USER}"
SERVICE_SYSTEMD_UNIT="${SYSTEMD_UNITS}/${SERVICE_NAME}.service"
# shellcheck disable=SC2034
SERVICE_GROUP="${SERVICE_USER}"
GO_ENV="${SERVICE_HOME}/.go_env"
GO_PKG_URL="https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz"
GO_TAR=$(basename "$GO_PKG_URL")
# ----------------------------------------------------------------------------
usage(){
# ----------------------------------------------------------------------------
# shellcheck disable=SC1117
cat <<EOF
usage:
$(basename "$0") shell
$(basename "$0") install [all|user]
$(basename "$0") remove [all]
$(basename "$0") activate [server]
$(basename "$0") deactivate [server]
shell - start interactive shell with user ${SERVICE_USER}
install user - add service user '$SERVICE_USER' at $SERVICE_HOME
EOF
[ ! -z ${1+x} ] && echo -e "$1"
}
main(){
rst_title "$SERVICE_NAME" part
local _usage="ERROR: unknown or missing $1 command $2"
case $1 in
--source-only) ;;
-h|--help) usage ;;
shell)
sudo_or_exit
interactive_shell
;;
install)
sudo_or_exit
case $2 in
all) install_all ;;
user) assert_user ;;
*) usage "$_usage"; exit 42;;
esac ;;
remove)
sudo_or_exit
case $2 in
all) remove_all;;
user) remove_user ;;
*) usage "$_usage"; exit 42;;
esac ;;
activate)
sudo_or_exit
case $2 in
server) activate_server ;;
*) usage "$_usage"; exit 42;;
esac ;;
deactivate)
sudo_or_exit
case $2 in
server) deactivate_server ;;
*) usage "$_usage"; exit 42;;
esac ;;
*) usage "ERROR: unknown or missing command $1"; exit 42;;
esac
}
install_all() {
rst_title "Install $SERVICE_NAME (service)"
assert_user
install_go
install_filtron
install_server
}
remove_all() {
rst_title "De-Install $SERVICE_NAME (service)"
remove_server
remove_user
rm -rf "$FILTRON_ETC"
wait_key
}
install_server() {
rst_title "Install System-D Unit ${SERVICE_NAME}.service ..." section
install_template ${SERVICE_SYSTEMD_UNIT} root root 644
wait_key
activate_server
}
remove_server() {
if ! ask_yn "Do you really want to deinstall $SERVICE_NAME?"; then
return
fi
deactivate_server
rm "${SERVICE_SYSTEMD_UNIT}"
}
activate_server () {
rst_title "Activate $SERVICE_NAME (service)" section
tee_stderr <<EOF | bash 2>&1 | prefix_stdout
systemctl enable $SERVICE_NAME.service
systemctl restart $SERVICE_NAME.service
EOF
tee_stderr <<EOF | bash 2>&1 | prefix_stdout
systemctl status $SERVICE_NAME.service
EOF
wait_key
}
deactivate_server () {
rst_title "De-Activate $SERVICE_NAME (service)" section
echo
tee_stderr <<EOF | bash 2>&1 | prefix_stdout
systemctl stop $SERVICE_NAME.service
systemctl disable $SERVICE_NAME.service
EOF
wait_key
}
assert_user() {
rst_title "user $SERVICE_USER" section
echo
tee_stderr 1 <<EOF | bash | prefix_stdout
sudo -H adduser --shell /bin/bash --system --home $SERVICE_HOME --group --gecos 'Filtron' $SERVICE_USER
sudo -H usermod -a -G shadow $SERVICE_USER
groups $SERVICE_USER
EOF
SERVICE_HOME="$(sudo -i -u "$SERVICE_USER" echo \$HOME)"
export SERVICE_HOME
echo "export SERVICE_HOME=$SERVICE_HOME"
cat > "$GO_ENV" <<EOF
export GOPATH=\$HOME/go-apps
export PATH=\$PATH:\$HOME/local/go/bin:\$GOPATH/bin
EOF
echo "Environment $GO_ENV has been setup."
tee_stderr <<EOF | sudo -i -u $SERVICE_USER
grep -qFs -- 'source $GO_ENV' ~/.profile || echo 'source $GO_ENV' >> ~/.profile
EOF
}
remove_user() {
rst_title "Drop $SERVICE_USER HOME" section
if ask_yn "Do you really want to drop $SERVICE_USER home folder?"; then
userdel -r -f "$SERVICE_USER"
else
rst_para "Leave HOME folder $(du -sh "$SERVICE_HOME") unchanged."
fi
}
interactive_shell(){
echo "// exit with STRG-D"
sudo -H -u ${SERVICE_USER} -i
}
_service_prefix="$SERVICE_USER@$(hostname) -->| "
install_go(){
rst_title "Install Go in user's HOME" section
rst_para "download and install go binary .."
cache_download "${GO_PKG_URL}" "${GO_TAR}"
tee_stderr 0.1 <<EOF | sudo -i -u "$SERVICE_USER" | prefix_stdout "$_service_prefix"
echo \$PATH
echo \$GOPATH
mkdir -p \$HOME/local
rm -rf \$HOME/local/go
tar -C \$HOME/local -xzf ${CACHE}/${GO_TAR}
EOF
echo
sudo -i -u "$SERVICE_USER" <<EOF | prefix_stdout
! which go >/dev/null && echo "Go Installation not found in PATH!?!"
which go >/dev/null && go version && echo "congratulations -- Go installation OK :)"
EOF
wait_key
}
install_filtron() {
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" | prefix_stdout "$_service_prefix"
go get -v -u github.com/asciimoo/filtron 2>&1
EOF
install_template "$FILTRON_ETC/rules.json" root root 644
}
# ----------------------------------------------------------------------------
main "$@"
# ----------------------------------------------------------------------------
|
