Rewrite chainquery start script merge env with defaults

chainquery/stuff/start.sh

@@ -1,51 +1,30 @@
 #!/usr/bin/env bash
 
-## Config setup
+# Override defaults with environment variables
+CONFIGFILE="${CONFIGFILE:-/etc/lbry/chainqueryconfig.toml}"
+DEBUGMODE="${DEBUGMODE:-false}"
+RPC_USER="${RPC_USER:-lbry}"
+RPC_PASSWORD="${RPC_PASSWORD:-lbry}"
+RPC_HOST="${RPC_HOST:-localhost}"
+MYSQL_SERVER="${MYSQL_SERVER:-localhost}"
+MYSQL_USER="${MYSQL_USER:-lbry}"
+MYSQL_PASSWORD="${MYSQL_PASSWORD:-lbry}"
+MYSQL_DATABASE="${MYSQL_DATABASE:-chainquery}"
 
-## Setup Values
+exec_chainquery() {
-DEBUGMODE=$(echo "debugmode=$DEBUGMODE")
+    CONFIG_DIR=$(dirname "${CONFIGFILE}")
-LBRYCRDURL=$(echo "lbrycrdurl=\"rpc://$RPC_USER:$RPC_PASSWORD@10.5.1.2:9245\"")
+    exec chainquery serve --configpath "$CONFIG_DIR"
-MYSQLDSN=$(echo "mysqldsn=\"$MYSQL_USER:$MYSQL_PASSWORD@tcp($MYSQL_SERVER:3306)/$MYSQL_DATABASE\"")
-APIMYSQLDSN=$(echo "apimysqldsn=\"$MYSQL_USER:$MYSQL_PASSWORD@tcp($MYSQL_SERVER:3306)/$MYSQL_DATABASE\"")
-
-## Setup Defaults
-DEBUGMODE_DEFAULT='#DEFAULT-debugmode=false'
-LBRYCRDURL_DEFAULT='#DEFAULT-lbrycrdurl="rpc://lbry:lbry@localhost:9245"'
-MYSQLDSN_DEFAULT='#DEFAULT-mysqldsn="lbry:lbry@tcp(localhost:3306)/chainquery"'
-APIMYSQLDSN_DEFAULT='#DEFAULT-apimysqldsn="lbry:lbry@tcp(localhost:3306)/chainquery"'
-
-## Add setup value variable name to this list to get processed on container start
-CONFIG_SETTINGS=(
-  DEBUGMODE
-  LBRYCRDURL
-  MYSQLDSN
-  APIMYSQLDSN
-)
-
-function set_configs() {
-  ## Set configs on container start if not already set.
-  for i in "${!CONFIG_SETTINGS[@]}"; do
-    ## Indirect references http://tldp.org/LDP/abs/html/ivr.html
-    eval FROM_STRING=\$"${CONFIG_SETTINGS[$i]}_DEFAULT"
-    eval TO_STRING=\$${CONFIG_SETTINGS[$i]}
-    ## TODO: Add a bit more magic to make sure that you're only configuring things if not set by config mounts.
-    sed -i "s~$FROM_STRING~"$TO_STRING"~g" /etc/lbry/chainqueryconfig.toml
-  done
-  echo "Reading config for debugging."
-  cat /etc/lbry/chainqueryconfig.toml
 }
 
-if [[ ! -f /etc/lbry/chainqueryconfig.toml ]]; then
+if [[ -f "$CONFIGFILE" ]]; then
-  echo "[INFO]: Did not find chainqueryconfig.toml"
-  echo "        Installing default and configuring with provided environment variables if any."
-  ## Install fresh copy of config file.
-  echo "cp -v /etc/lbry/chainqueryconfig.toml.orig /etc/lbry/chainqueryconfig.toml"
-  cp -v /etc/lbry/chainqueryconfig.toml.orig /etc/lbry/chainqueryconfig.toml
-  ls -lAh /etc/lbry/
-  set_configs
-else
   echo "[INFO]: Found a copy of chainqueryconfig.toml in /etc/lbry"
+  exec_chainquery
 fi
 
-## For now keeping this simple. Potentially eventually add all command args as envvars for the Dockerfile or use safe way to add args via docker-compose.yml
+cat << EOF >> "${CONFIGFILE}"
-chainquery serve --configpath "/etc/lbry/"
+DEBUGMODE="${DEBUGMODE}"
+LBRYCRDURL="rpc://${RPC_USER}:${RPC_PASSWORD}@${RPC_HOST}:9245"
+MYSQLDSN="${MYSQL_USER}:${MYSQL_PASSWORD}@tcp(${MYSQL_SERVER}:3306)/$MYSQL_DATABASE"
+APIMYSQLDSN="${MYSQL_USER}:${MYSQL_PASSWORD}@tcp(${MYSQL_SERVER}:3306)/$MYSQL_DATABASE"
+EOF
+exec_chainquery