From 1355a2b4a224b860a58d4055422ac21835f5aedf Mon Sep 17 00:00:00 2001
From: /rootzoll <christian@geektank.de>
Date: Tue, 1 Aug 2023 00:46:35 +0200
Subject: [PATCH] Adjust lnd.conf for healthcheck parameters (#4052)

* Adjust lnd.conf for healthcheck parameters, allowing for longer timeout intervalls for rpc connection (#4010)
* adding healthcheck values

---------

Co-authored-by: HODLmeTight <35168804+TrezorHannes@users.noreply.github.com>
---
 home.admin/assets/lnd.bitcoin.conf     |  6 +++
 home.admin/config.scripts/lnd.check.sh | 54 +++++++++++++++-----------
 2 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/home.admin/assets/lnd.bitcoin.conf b/home.admin/assets/lnd.bitcoin.conf
index ca5cf575f..923676a16 100755
--- a/home.admin/assets/lnd.bitcoin.conf
+++ b/home.admin/assets/lnd.bitcoin.conf
@@ -37,3 +37,9 @@ autopilot.allocation=0.6
 [bolt]
 db.bolt.auto-compact=true
 db.bolt.auto-compact-min-age=672h
+
+# Allow for longer latency, especially useful for <8GB RAM Pi and congested mempool
+[healthcheck] 
+healthcheck.chainbackend.attempts=3
+healthcheck.chainbackend.timeout=2m0s 
+healthcheck.chainbackend.interval=1m30s
diff --git a/home.admin/config.scripts/lnd.check.sh b/home.admin/config.scripts/lnd.check.sh
index 97b12e687..45b4284d8 100755
--- a/home.admin/config.scripts/lnd.check.sh
+++ b/home.admin/config.scripts/lnd.check.sh
@@ -311,8 +311,6 @@ if [ "$1" == "prestart" ]; then
   fi
 
   ##### RPCMIDDLEWARE SECTION #####
-
-  # [rpcmiddleware]
   sectionName="rpcmiddleware"
   echo "# [${sectionName}] config ..."
 
@@ -346,6 +344,38 @@ if [ "$1" == "prestart" ]; then
   # SET/UPDATE rpcmiddleware.enable
   setting ${lndConfFile} ${insertLine} "rpcmiddleware.enable" "true"
 
+  ##### HEALTHCHECK SECTION #####
+  sectionName="healthcheck"
+  echo "# [${sectionName}] config ..."
+
+  # make sure lnd config has a [healthcheck] section
+  sectionExists=$(cat ${lndConfFile} | grep -c "^\[${sectionName}\]")
+  echo "# sectionExists(${sectionExists})"
+  if [ "${sectionExists}" == "0" ]; then
+    echo "# adding section [${sectionName}]"
+    echo "
+[${sectionName}]
+" | tee -a ${lndConfFile}
+  fi
+
+  # get line number of [healthcheck] section
+  sectionLine=$(cat ${lndConfFile} | grep -n "^\[${sectionName}\]" | cut -d ":" -f1)
+  echo "# sectionLine(${sectionLine})"
+  insertLine=$(expr $sectionLine + 1)
+  echo "# insertLine(${insertLine})"
+  fileLines=$(wc -l ${lndConfFile} | cut -d " " -f1)
+  echo "# fileLines(${fileLines})"
+  if [ ${fileLines} -lt ${insertLine} ]; then
+    echo "# adding new line for inserts"
+    echo "
+" | tee -a ${lndConfFile}
+  fi
+
+  # SET/UPDATE healthcheck values
+  setting ${lndConfFile} ${insertLine} "healthcheck.chainbackend.attempts" "3"
+  setting ${lndConfFile} ${insertLine} "healthcheck.chainbackend.timeout" "2m0s"
+  setting ${lndConfFile} ${insertLine} "healthcheck.chainbackend.interval" "1m30s"
+
   echo "# OK PRESTART DONE"
 
 ######################################################################
@@ -419,26 +449,6 @@ elif [ "$1" == "basic-setup" ]; then
     echo "err='$(netprefix)lnd.conf: blockchain network in $(netprefix)lnd.conf (${lndNetwork}) is different from raspiblitz.conf (${network})'"
   fi
 
-  #  # get chain from config (TESTNET / MAINNET)
-  #  lndChain=""
-  #  source <(sudo cat /mnt/hdd/lnd/lnd.conf 2>/dev/null | grep "${lndNetwork}.mainnet" | sed 's/^[a-z]*\.//g')
-  #  source <(sudo cat /mnt/hdd/lnd/lnd.conf 2>/dev/null | grep "${lndNetwork}.testnet" | sed 's/^[a-z]*\.//g')
-  #  if [ "${mainnet}" == "1" ] && [ "${testnet}" == "1" ]; then
-  #    echo "err='lnd.conf: mainnet and testnet are set active at the same time'"
-  #  elif [ "${mainnet}" == "1" ]; then
-  #    lndChain="main"
-  #  elif [ "${testnet}" == "1" ]; then
-  #    lndChain="test"
-  #  else
-  #    echo "err='lnd.conf: neither testnet or mainnet is set active (raspiblitz needs one of them active in lnd.conf)'"
-  #  fi
-  #  echo "chain='${lndChain}'"
-  #
-  #  # check if chain is same the raspiblitz config
-  #  if [ "${chain}" != "${lndChain}" ]; then
-  #    echo "err='lnd.conf: testnet/mainnet in lnd.conf (${lndChain}) is different from raspiblitz.conf (${chain})'"
-  #  fi
-
   # check for admin macaroon exist (on HDD)
   adminMacaroonExists=$(sudo ls /mnt/hdd/lnd/data/chain/${network}/${chain}net/admin.macaroon 2>/dev/null | grep -c 'admin.macaroon')
   if [ ${adminMacaroonExists} -gt 0 ]; then