Comment and indent app entrypoint (#182)

app/entrypoint.sh

@@ -1,9 +1,11 @@
 #!/bin/bash
 
+# Function to generate a random salt
 generate_salt() {
   cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 48 | head -n 1
 }
 
+# Read environment variables or set default values
 DB_HOST=${DB_HOST:-db}
 DB_PORT_NUMBER=${DB_PORT_NUMBER:-5432}
 MM_USERNAME=${MM_USERNAME:-mmuser}
@@ -16,6 +18,7 @@ if [ "${1:0:1}" = '-' ]; then
 fi
 
 if [ "$1" = 'platform' ]; then
+  # Check CLI args for a -config option
   for ARG in $@;
   do
       case "$ARG" in
@@ -24,9 +27,9 @@ if [ "$1" = 'platform' ]; then
       esac
   done
 
-
   if [ ! -f $MM_CONFIG ]
   then
+    # If there is no configuration file, create it with some default values
     echo "No configuration file" $MM_CONFIG
     echo "Creating a new one"
     # Copy default configuration file
@@ -51,6 +54,7 @@ if [ "$1" = 'platform' ]; then
     echo "Using existing config file" $MM_CONFIG
   fi
 
+  # Configure database access
   if [ -z "$MM_SQLSETTINGS_DATASOURCE" ]
   then
     echo -ne "Configure database connection..."
@@ -60,13 +64,15 @@ if [ "$1" = 'platform' ]; then
     echo "Using existing database connection"
   fi
 
+  # Wait for database to be reachable
   echo "Wait until database $DB_HOST:$DB_PORT_NUMBER is ready..."
   until nc -z $DB_HOST $DB_PORT_NUMBER
   do
     sleep 1
   done
 
-    # Wait to avoid "panic: Failed to open sql connection pq: the database system is starting up"
+  # Wait another second for the database to be properly started.
+  # Necessary to avoid "panic: Failed to open sql connection pq: the database system is starting up"
   sleep 1
 
   echo "Starting platform"