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#!/bin/bash
#/opt/skywire/scripts/skywire-autoconfig
#skywire autoconfiguration script for debian & archlinux packages
#source the skyenv file if it exists - provided by the skybian package or the user
[[ -f /etc/profile.d/skyenv.sh ]] && source /etc/profile.d/skyenv.sh
#set NOAUTOCONFIG=true to avoid running the script in the postinstall
if [[ ${NOAUTOCONFIG} == true ]]; then
#unset the env
NOAUTOCONFIG=''
echo "autoconfiguration disabled. to configure and start skywire run: skywire-autoconfig"
exit 0
fi
#check for root
if [[ $EUID -ne 0 ]]; then
echo "root permissions required"
exit 1
fi
#grant network permissions to the vpn app binaries
setcap cap_net_admin+ep /opt/skywire/apps/vpn-client
setcap cap_net_admin+ep /opt/skywire/apps/vpn-server
# determine if skywire is running via systemd
if [[ $(ps -eo pid,comm,cgroup | grep skywire) == *"system.slice"* ]]; then
WSYSTEMD=1
fi
#root portion of the configuration
if [[ $DMSGPTYTERM -ne "1" ]] && [[ $WSYSTEMD -eq "1" ]]; then
#halt any running instance
systemctl is-active --quiet skywire-visor && systemctl disable --now skywire-visor 2> /dev/null
systemctl is-active --quiet skywire-hypervisor && systemctl disable --now skywire-hypervisor 2> /dev/null
fi
systemctl is-active --quiet skywire-autoconfig && systemctl disable skywire-autoconfig 2> /dev/null
#make the logging of this script colorful
_nc='\033[0m'
_red='\033[0;31m'
_green='\033[0;32m'
_yellow='\033[0;33m'
_blue='\033[1;34m'
_purple='\033[0;35m'
_cyan='\033[0;36m'
_bold='\033[1m'
##set the argument to pass into functions##
_1=${1}
#recreate pacman logging
_msg2() {
(( QUIET )) && return
local mesg=$1; shift
printf "${_cyan} ->${_nc}${_bold} ${mesg}${_nc}\n" "$@"
}
_msg3() {
(( QUIET )) && return
local mesg=$1; shift
printf "${_blue} -->${_nc}${BOLD} ${mesg}${_nc}\n" "$@"
}
_errmsg1() {
(( QUIET )) && return
local mesg=$1; shift
printf "${_red}>>> Error:${_nc}${_bold} ${mesg}${_nc}\n" "$@"
}
_warnmsg1() {
(( QUIET )) && return
local mesg=$1; shift
printf "${_red}>>> Warning:${_nc}${_bold} ${mesg}${_nc}\n" "$@"
}
_errmsg2() {
(( QUIET )) && return
local mesg=$1; shift
printf "${_red}>>> FATAL:${_bold} ${mesg}${_nc}\n" "$@"
}
#helpful text
_welcome(){
if [[ $(uname -m) == *"arm"* ]]; then
_msg2 "register your public key:"
_msg2 "${_blue}https://whitelist.skycoin.com/${_nc}"
_msg2 "track uptime:"
_msg2 "${_blue}http://ut.skywire.skycoin.com/uptimes${_nc}"
fi
_msg2 "support:
${_blue}https://t.me/skywire${_nc}"
}
#generate config as root
_config_gen() {
# remove any existing symlink
[[ -f /opt/skywire/skywire-visor.json ]] && rm /opt/skywire/skywire-visor.json
#create by default the local hypervisor config if no config exists ; and retain any hypervisor config which exists
[[ (! -f /opt/skywire/skywire.json) || ($(cat /opt/skywire/skywire.json | grep -Po '"hypervisor":') != "") ]] && _is_hypervisor="-i"
#check for argument - remote pk or 0
# 0 as argument drops any remote hypervisors which were set in the configuration
# & triggers the creation of the local hyperisor configuration
if [[ ${_1} == "0" ]]; then
_retain_hv=""
unset _1
_is_hypervisor="-i"
fi
# create the flag to set the remote hypervisor(s)
if [[ ! -z ${_1} ]]; then
_retain_hv=""
_hvpks="--hvpks ${_1}" #shorthand flag: -j
_is_hypervisor=""
fi
##generate (hyper)visor configuration##
# show config gen command used
_msg3 "Generating skywire config with command:
${_cyan}skywire-cli ${_yellow}config gen -bepr ${_retain_hv} ${_is_hypervisor} ${_public_rpc} ${_vpn_server} ${_test_env} ${_hvpks}${_nc}"
skywire-cli config gen -bepr ${_retain_hv} ${_is_hypervisor} ${_public_rpc} ${_vpn_server} ${_test_env} ${_hvpks} >> /dev/null 2>&1
if [[ ${?} != 0 ]]; then
#print the error!
skywire-cli config gen -bepr ${_retain_hv} ${_is_hypervisor} ${_public_rpc} ${_vpn_server} ${_test_env} ${_hvpks}
_err=$?
_errmsg2 "error generating skywire config"
exit ${_err}
fi
#logging check
if [[ -f /opt/skywire/skywire.json ]]; then
_msg3 "${_blue}Skywire${_nc} configuration updated
config path: ${_purple}/opt/skywire/skywire.json${_nc}"
if [[ ! -f /etc/skywire-config.json ]]; then
_msg2 "backing up configuration to /etc/skywire-config.json"
cp -b /opt/skywire/skywire.json /etc/skywire-config.json
fi
else
_errmsg2 "expected config file not found at /opt/skywire/skywire.json"
exit 100
fi
}
#only use public rpc flag with env PUBLICRPC=1
if [[ ( ${PUBLICRPC} -eq "1") ]]; then
_public_rpc="--publicrpc "
fi
#enable VPN server automatically on config re-gen with env VPNSERVER=1
if [[ ${VPNSERVER} -eq "1" ]]; then
_vpn_server="--servevpn "
fi
#default to retaining hypervisors already set
_retain_hv="-x"
#use test deployment instead of production with env TESTENV=1
if [[ ${TESTENV} -eq "1" ]]; then
_test_env="--testenv"
fi
#check if >>this script<< is a child process of the systemd service i.e.: run in dmsgpty terminal
if [[ "${SYSTEMDCHILD}" -ne "1" ]]; then
_now="--now"
fi
#root portion of the config
_msg2 "Configuring skywire"
#attempt to import config if none exists - i.e. import skybian config or restore config
if [[ ! -f /opt/skywire/skywire.json ]]; then
if [[ -f /etc/skywire-config.json ]]; then
_warnmsg1 "Importing configuration from /etc/skywire-config.json"
cp -b /etc/skywire-config.json /opt/skywire/skywire.json
fi
fi
#config generation
_config_gen
_svc=skywire
if [[ $SKYBIAN == "true" ]]; then
_msg3 "Enabling ${_svc} service${_now/--/ and starting }..
systemctl enable ${_now} ${_svc}.service"
systemctl enable ${_now} ${_svc}.service 2> /dev/null
fi
if [[ $DMSGPTYTERM == "1" ]]; then
if [[ ${_now} != "--now" ]]; then
_msg3 "Please restart ${_svc} service manually:
${_red}systemctl restart ${_svc} 2> /dev/null${_nc}"
exit 0
else
_msg3 "Please shut down your visor and start it again with:
${_red}systemctl start ${_svc} 2> /dev/null${_nc}"
exit 0
fi
fi
#restart the service
systemctl is-active --quiet ${_svc} && _msg3 "Restarting skywire.service..." && systemctl restart ${_svc} 2> /dev/null
if ! systemctl is-active --quiet ${_svc} >/dev/null; then
_msg2 "Start the skywire service with:
${_red}systemctl start ${_svc}${_nc}"
exit 0
fi
_pubkey=$(skywire-cli visor pk -p | tail -n1)
_msg2 "Visor Public Key:
${_green}${_pubkey}${_nc}"
if [[ $_is_hypervisor == "-i" ]]; then
if [[ $(ps -o comm= -p $PPID) != "sshd" ]]; then
_msg2 "Starting now on:
${_red}http://127.0.0.1:8000${_nc}"
_vpnurl=$(skywire-cli hv vpn url -p)
_msg2 "Use the vpn:
${_red}${_vpnurl}${_nc}"
# ${_red}http://127.0.0.1:8000/#/vpn/${_pubkey}/${_nc}"
fi
_lanip="$(ip addr show | grep -w inet | grep -v 127.0.0.1 | awk '{ print $2}' | cut -d "/" -f 1)"
_msg2 "Access hypervisor UI from local network here:
${_yellow}http://${_lanip}:8000${_nc}"
_welcome
_msg2 "run the following command on OTHER NODES to set this one as the hypervisor:"
echo -e "${_cyan}skywire-autoconfig ${_yellow}${_pubkey}${_nc}"
_msg2 "to see this text again run: ${_cyan}skywire-autoconfig${_nc}"
else
_msg2 "${_blue}Skywire${_nc} starting in visor mode"
_msg2 "Visor Public Key: ${_green}${_pubkey}${_nc}"
_welcome
fi
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