add tls cert script

home.admin/config.scripts/lnd.tlscert.sh

@@ -0,0 +1,118 @@
+#!/bin/bash
+
+# ToDo(frennkie) why doesn't this start lnd again? - I assume as _background will start it anyway?!
+# ToDo(frennkie) the way LND generates the x509 certificate is not ideal -
+#   it may be better to simply run openssl and create a cert with our settings...
+
+if [ $# -eq 0 ]; then
+ echo "script to set and config TLS Cert for LND"
+ echo "lnd.tlscert.sh refresh"
+ exit 1
+fi
+
+TLSPATH="/mnt/hdd/lnd"
+LNDCONF="/mnt(hdd/lnd/lnd.conf"
+
+def lndCreateFreshTLS()
+{
+
+  echo "# making sure services are not running"
+  sudo systemctl stop lnd 2>/dev/null
+
+  echo "# keep old tls data as backup"
+  sudo rm ${TLSPATH}/tls.cert.old 2>/dev/null
+  sudo rm ${TLSPATH}/tls.key.old 2>/dev/null
+  sudo mv ${TLSPATH}/tls.cert ${TLSPATH}/tls.cert.old 
+  sudo mv ${TLSPATH}/tls.key ${TLSPATH}/tls.key.old 
+
+  echo "# start to create new generate new TLSCert"
+  sudo systemctl start lnd
+  echo "# wait until generated"
+  newCertExists=0
+  count=0
+  while [ ${newCertExists} -eq 0 ]
+  do
+    count=$(($count + 1))
+    echo "# (${count}/60) check for cert"
+    if [ ${count} -gt 60 ]; then
+      sudo systemctl stop lnd
+      echo "error='failed to generate new LND cert'"
+      exit 1
+    fi
+    newCertExists=$(sudo ls /mnt/hdd/lnd/tls.cert 2>/dev/null | grep -c '.cert')
+    sleep 2
+  done
+
+  # stop lnd and let outside decide to restart or not
+  sudo systemctl stop lnd
+  sudo chmod 664 ${TLSPATH}/tls.cert
+  sudo chown bitcoin:bitcoin "/mnt/hdd/lnd/tls.cert"
+
+  echo "# symlink new cert to lnd app-data directory"
+  if ! [[ -L "/mnt/hdd/app-data/lnd/tls.cert" ]]; then
+    sudo rm -rf "/mnt/hdd/app-data/lnd/tls.cert"               # not a symlink.. delete it silently
+    sudo ln -s ${TLSPATH}/tls.cert /home/admin/.lnd/tls.cert   # and create symlink
+  fi
+  echo "# OK TLS certs are fresh"
+}
+
+### REFRESH
+
+if [ "$1" = "refresh" ]; then 
+  lndCreateFreshTLS
+  exit
+fi
+
+### ADD IP
+
+if [ "$1" = "ip-add" ]; then 
+
+  # 2. parameter: ip
+  ip=$2
+  countDots=$(echo "$ip" | grep -c '.')
+  if [ "${countDots}" != "4" ]; then
+    echo "error='missing or invalid ip'"
+  fi
+
+  # simply add the line to the LND conf
+  sudo sed -i "8itlsextraip=${ip}" ${LNDCONF}
+
+  # check if line is added
+  found=$(sudo cat ${LNDCONF} | grep -c "tlsextraip=${ip}")
+  if [ ${found} -eq 0 ]; then
+    echo "error='failed adding IP'"
+    exit
+  fi
+
+  echo "# OK added IP to lnd.conf - refresh of TLS cert is needed"
+  exit
+fi
+
+### REMOVE IP
+
+if [ "$1" = "ip-remove" ]; then 
+
+  # 2. parameter: ip
+  ip=$2
+  countDots=$(echo "$ip" | grep -c '.')
+  if [ "${countDots}" != "4" ]; then
+    echo "error='missing or invalid ip'"
+  fi
+
+  # remove the line to the LND conf
+  sudo sed -i "/tlsextraip=${ip}/d" ${LNDCONF}
+
+  # check if line is removed
+  found=$(sudo cat ${LNDCONF} | grep -c "tlsextraip=${ip}")
+  if [ ${found} -gt 0 ]; then
+    echo "error='failed removing IP'"
+    exit
+  fi
+
+  echo "# OK removed IP from lnd.conf - refresh of TLS cert is needed"
+  exit
+fi
+
+
+
+