lbrycrd/packaging/docker-for-binary/stuff/start.sh
2019-11-27 09:31:35 -05:00

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#!/usr/bin/env bash
CONFIG_PATH=/etc/lbry/lbrycrd.conf
function override_config_option() {
# Remove existing config line from a config file
# and replace with environment fed value.
# Does nothing if the variable does not exist.
# var Name of ENV variable
# option Name of config option
# config Path of config file
local var=$1 option=$2 config=$3
if [[ -v $var ]]; then
# Remove the existing config option:
sed -i "/^$option\W*=/d" $config
# Add the value from the environment:
echo "$option=${!var}" >> $config
fi
}
function set_config() {
if [ -d "$CONFIG_PATH" ]; then
echo "$CONFIG_PATH is a directory when it should be a file."
exit 1
elif [ -f "$CONFIG_PATH" ]; then
echo "Merging the mounted config file with environment variables."
local MERGED_CONFIG=/tmp/lbrycrd_merged.conf
cp $CONFIG_PATH $MERGED_CONFIG
echo "" >> $MERGED_CONFIG
override_config_option PORT port $MERGED_CONFIG
override_config_option RPC_USER rpcuser $MERGED_CONFIG
override_config_option RPC_PASSWORD rpcpassword $MERGED_CONFIG
override_config_option RPC_ALLOW_IP rpcallowip $MERGED_CONFIG
override_config_option RPC_PORT rpcport $MERGED_CONFIG
override_config_option RPC_BIND rpcbind $MERGED_CONFIG
override_config_option TX_INDEX txindex $MERGED_CONFIG
override_config_option MAX_TX_FEE maxtxfee $MERGED_CONFIG
override_config_option DUST_RELAY_FEE dustrelayfee $MERGED_CONFIG
# Make the new merged config file the new CONFIG_PATH
# This ensures that the original file the user mounted remains unmodified
CONFIG_PATH=$MERGED_CONFIG
else
echo "Creating a fresh config file from environment variables."
cat << EOF > $CONFIG_PATH
server=1
printtoconsole=1
port=${PORT:-9246}
rpcuser=${RPC_USER:-lbry}
rpcpassword=${RPC_PASSWORD:-lbry}
rpcallowip=${RPC_ALLOW_IP:-127.0.0.1}
rpcport=${RPC_PORT:-9245}
rpcbind=${RPC_BIND:-"0.0.0.0"}
txindex=${TX_INDEX:-"1"}
maxtxfee=${MAX_TX_FEE:-"0.5"}
dustrelayfee=${DUST_RELAY_FEE:-"0.00000001"}
EOF
fi
echo "Config: "
cat $CONFIG_PATH
}
function download_snapshot() {
local url="${SNAPSHOT_URL:-}" #off by default. latest snapshot at https://lbry.com/snapshot/blockchain
if [[ -n "$url" ]] && [[ ! -d ./.lbrycrd/blocks ]]; then
echo "Downloading blockchain snapshot from $url"
wget --no-verbose -O snapshot.tar.bz2 "$url"
echo "Extracting snapshot..."
mkdir -p ./.lbrycrd
tar xvjf snapshot.tar.bz2 --directory ./.lbrycrd
rm snapshot.tar.bz2
fi
}
## Ensure perms are correct prior to running main binary
/usr/bin/fix-permissions
## You can optionally specify a run mode if you want to use lbry defined presets for compatibility.
case $RUN_MODE in
default )
set_config
download_snapshot
exec lbrycrdd -conf=$CONFIG_PATH
;;
## If it's a first run you need to do a full index including all transactions
## tx index creates an index of every single transaction in the block history if
## not specified it will only create an index for transactions that are related to the wallet or have unspent outputs.
## This is generally specific to chainquery.
reindex )
## Apply this RUN_MODE in the case you need to update a dataset. NOTE: you do not need to use `RUN_MODE reindex` for more than one complete run.
set_config
exec lbrycrdd -conf=$CONFIG_PATH -reindex
;;
regtest )
## Set config params
## TODO: Make this more automagic in the future.
mkdir -p `dirname $CONFIG_PATH`
echo "rpcuser=lbry" > $CONFIG_PATH
echo "rpcpassword=lbry" >> $CONFIG_PATH
echo "rpcport=29245" >> $CONFIG_PATH
echo "rpcbind=0.0.0.0" >> $CONFIG_PATH
echo "rpcallowip=0.0.0.0/0" >> $CONFIG_PATH
echo "regtest=1" >> $CONFIG_PATH
echo "txindex=1" >> $CONFIG_PATH
echo "server=1" >> $CONFIG_PATH
echo "printtoconsole=1" >> $CONFIG_PATH
[ "${AUTO_ADVANCE:-0}" == "1" ] && nohup advance &>/dev/null &
exec lbrycrdd -conf=$CONFIG_PATH $1
;;
testnet )
## Set config params
## TODO: Make this more automagic in the future.
mkdir -p `dirname $CONFIG_PATH`
echo "rpcuser=lbry" > $CONFIG_PATH
echo "rpcpassword=lbry" >> $CONFIG_PATH
echo "rpcport=29245" >> $CONFIG_PATH
echo "rpcbind=0.0.0.0" >> $CONFIG_PATH
echo "rpcallowip=0.0.0.0/0" >> $CONFIG_PATH
echo "testnet=1" >> $CONFIG_PATH
echo "txindex=1" >> $CONFIG_PATH
echo "server=1" >> $CONFIG_PATH
echo "printtoconsole=1" >> $CONFIG_PATH
#nohup advance &>/dev/null &
exec lbrycrdd -conf=$CONFIG_PATH $1
;;
* )
echo "Error, you must define a RUN_MODE environment variable."
echo "Available options are testnet, regtest, chainquery, default, and reindex"
;;
esac