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#1428 Fix BTC-RPC-Explorer restart when in use with ElectRS (#1563)

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Christian Rotzoll 2020-09-18 15:48:12 +02:00 • committed by rootzoll
parent 0a3b3a726b
commit 63dc0756b4
2 changed files with 130 additions and 32 deletions
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2
home.admin/_background.sh
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@ -412,7 +412,7 @@ do
# check every 10 minutes
electrsExplorer=$((($counter % 600)+1))
if [ ${electrsExplorer} -eq 1 ]; then
if [ "${BTCRPCexplorer}" = "on" ] & [ "${ElectRS}" = "on" ]; then
if [ "${BTCRPCexplorer}" = "on" ]; then
/home/admin/config.scripts/bonus.electrsexplorer.sh
fi
fi

140
home.admin/config.scripts/bonus.electrsexplorer.sh
View file

@ -1,50 +1,148 @@
# config script to make BTC-RPC-Explorer use Electrs if both active
# thx to PatrickScheich for improving the script
source /mnt/hdd/raspiblitz.conf
if [ "${BTCRPCexplorer}" = "on" ] & [ "${ElectRS}" = "on" ]; then
## Enable BTCEXP_ADDRESS_API if BTC-RPC-Explorer is active
if [ $(sudo -u electrs lsof -i | grep -c 50001) -gt 0 ]; then
echo "electrs is active - switching address API support on in BTC-RPC-Explorer"
sudo -u btcrpcexplorer sed -i 's/^BTCEXP_ADDRESS_API=none/BTCEXP_ADDRESS_API=electrumx/g' /home/btcrpcexplorer/.config/btc-rpc-explorer.env
# explorer start script (waits to start btc-rpc-explorer until eletrs is responsive)
explorerStartDir="/home/admin/system"
explorerStartScript="${explorerStartDir}/btc-rpc-explorer.run.sh"
explorerStartScriptEscaped=$(echo "${explorerStartScript}" | sed 's/\//\\\//g')
# create ExecStart=/home/admin/btc-rpc-explorer.run.sh
cat > /home/admin/btc-rpc-explorer.run.sh <<EOF
# check if "^BTCEXP_ADDRESS_API=electrumx"
btcaddrapiEnabled=$(sudo cat /home/btcrpcexplorer/.config/btc-rpc-explorer.env 2>/dev/null | grep -c "^BTCEXP_ADDRESS_API=electrumx")
# check if service starts the shell script "btc-rpc-explorer.run.sh"
serviceStartsScript=$(sudo cat /etc/systemd/system/btc-rpc-explorer.service 2>/dev/null | grep -c "^ExecStart=${explorerStartScript}")
# optional return status
if [ "$1" = "status" ]; then
if [ "${BTCRPCexplorer}" = "" ]; then
BTCRPCexplorer="off"
fi
if [ "${ElectRS}" = "" ]; then
ElectRS="off"
fi
echo "BTCRPCexplorer=${BTCRPCexplorer}"
echo "ElectRS=${ElectRS}"
echo "explorerStartScript='${explorerStartScript}'"
echo "explorerStartScriptEscaped='${explorerStartScriptEscaped}'"
echo "# if electrum is set as address api in btc-prc-explorer"
echo "btcaddrapiEnabled=${btcaddrapiEnabled}"
echo "# if btc-prc-explorer is started by systemd with btc-rpc-explorer.run.sh"
echo "# that waits for electrum to become responsive"
echo "serviceStartsScript=${serviceStartsScript}"
exit 0
fi
# variable to track if service restart is needed
serviceNeedsRestart=0
# both services are "switched on" in raspiblitz.conf
if [ "${BTCRPCexplorer}" = "on" ] & [ "${ElectRS}" = "on" ]; then
# make sure that "btc-rpc-explorer.run.sh" exists...
# if it does not exist, create it and make it executable
# it is fine to create the script, even the BTC-RPC-Explorer might be started directly
if [ ! -f ${explorerStartScript} ]; then
echo "script \"${explorerStartScript}\" does not exist, create it and make it executable"
sudo -u admin mkdir -p ${explorerStartDir}
cat > ${explorerStartScript} <<EOF
#!/bin/bash
echo "Waiting Electrs on port 50001..."
while [ $(sudo -u electrs lsof -i | grep -c 50001) -eq 0 ]; do
while [ \$(sudo -u electrs lsof -i | grep -c 50001) -eq 0 ]; do
sleep 1
done
echo "Electrs started, launching BTC-RPC-Explorer..."
cd /home/btcrpcexplorer/btc-rpc-explorer
sudo -u btcrpcexplorer /usr/bin/npm start
EOF
sudo chmod +x /home/admin/btc-rpc-explorer.run.sh
sudo chmod +x ${explorerStartScript}
fi
sudo sed -i "s/^ExecStart=\/usr\/bin\/npm start/ExecStart=\/home\/admin\/btc-rpc-explorer.run.sh/g" /etc/systemd/system/btc-rpc-explorer.service
# electrs service is online
if [ $(sudo -u electrs lsof -i | grep -c 50001) -gt 0 ]; then
echo "electrs is online"
# if address API support is not yet enabled => change it in "/home/btcrpcexplorer/.config/btc-rpc-explorer.env"
if [ ${btcaddrapiEnabled} -ne 1 ]; then
echo "electrs is active - switching address API support on in BTC-RPC-Explorer"
sudo -u btcrpcexplorer sed -i 's/^BTCEXP_ADDRESS_API=none/BTCEXP_ADDRESS_API=electrumx/g' /home/btcrpcexplorer/.config/btc-rpc-explorer.env
# make sure to restart the service
serviceNeedsRestart=1
else
echo "electrs is active - address API support in BTC-RPC-Explorer is already enabled, nothing to do here"
fi
# make sure that explorer is started thru script
if [ ${serviceStartsScript} -ne 1 ]; then
echo "btc-rpc-explorer.service change to start via script: ${explorerStartScript}"
sudo sed -i "s/^ExecStart=\/usr\/bin\/npm start/ExecStart=${explorerStartScriptEscaped}/g" /etc/systemd/system/btc-rpc-explorer.service
sudo sed -i "s/^User=.*/User=admin/g" /etc/systemd/system/btc-rpc-explorer.service
sudo systemctl daemon-reload
sudo systemctl restart btc-rpc-explorer
# make sure to restart the service
serviceNeedsRestart=1
else
echo "electrs is active - service start via script is already enabled, nothing to do here"
fi
# electrs service is offline
else
echo "electrs is offline"
# make sure to switch address API support off
if [ ${btcaddrapiEnabled} -ne 1 ]; then
echo "electrs is not active - address API support in BTC-RPC-Explorer is already disabled, nothing to do here"
else
echo "electrs is not active - switching address API support off in BTC-RPC-Explorer"
sudo -u btcrpcexplorer sed -i 's/^BTCEXP_ADDRESS_API=electrumx/BTCEXP_ADDRESS_API=none/g' /home/btcrpcexplorer/.config/btc-rpc-explorer.env
sudo sed -i "s/^ExecStart=\/home\/admin\/btc-rpc-explorer.run.sh/ExecStart=\/usr\/bin\/npm start/g" /etc/systemd/system/btc-rpc-explorer.service
sudo sed -i "s/^User=.*/User=btcrpcexplorer/g" /etc/systemd/system/btc-rpc-explorer.service
sudo systemctl daemon-reload
sudo systemctl restart btc-rpc-explorer
# make sure to restart the service
serviceNeedsRestart=1
fi
# make sure to start explorer directly
if [ ${serviceStartsScript} -ne 1 ]; then
echo "electrs is not active - service direct start is already enabled, nothing to do here"
else
echo "btc-rpc-explorer.service change to start directly"
sudo sed -i "s/^ExecStart=${explorerStartScriptEscaped}/ExecStart=\/usr\/bin\/npm start/g" /etc/systemd/system/btc-rpc-explorer.service
sudo sed -i "s/^User=.*/User=btcrpcexplorer/g" /etc/systemd/system/btc-rpc-explorer.service
# make sure to restart the service
serviceNeedsRestart=1
fi
fi
# both services are NOT "switched on" in raspiblitz.conf
else
## Disable BTCEXP_ADDRESS_API if BTC-RPC-Explorer is active
# electrs if OFF and explorer ON
if [ "${BTCRPCexplorer}" = "on" ]; then
# Disable BTCEXP_ADDRESS_API if BTC-RPC-Explorer is active
echo "electrs is off in raspiblitz.conf"
if [ ${btcaddrapiEnabled} -ne 1 ]; then
echo "electrs is not active - address API support in BTC-RPC-Explorer is already disabled, nothing to do here"
else
echo "electrs is not active - switching address API support off in BTC-RPC-Explorer"
sudo -u btcrpcexplorer sed -i 's/^BTCEXP_ADDRESS_API=electrumx/BTCEXP_ADDRESS_API=none/g' /home/btcrpcexplorer/.config/btc-rpc-explorer.env
# make sure to restart the service
serviceNeedsRestart=1
fi
sudo sed -i "s/^ExecStart=\/home\/admin\/btc-rpc-explorer.run.sh/ExecStart=\/usr\/bin\/npm start/g" /etc/systemd/system/btc-rpc-explorer.service
# make sure that service is started directly
if [ ${serviceStartsScript} -ne 1 ]; then
echo "electrs is not active - service direct start is already enabled, nothing to do here"
else
echo "btc-rpc-explorer.service change to start directly"
sudo sed -i "s/^ExecStart=${explorerStartScriptEscaped}/ExecStart=\/usr\/bin\/npm start/g" /etc/systemd/system/btc-rpc-explorer.service
sudo sed -i "s/^User=.*/User=btcrpcexplorer/g" /etc/systemd/system/btc-rpc-explorer.service
sudo systemctl daemon-reload
sudo systemctl restart btc-rpc-explorer
# make sure to restart the service
serviceNeedsRestart=1
fi
fi
fi
if [ ${serviceNeedsRestart} -eq 1 ]; then
echo "BTC-RPC-Explorer service needs restart"
sudo systemctl daemon-reload
sudo systemctl restart btc-rpc-explorer
fi