diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..85e7c1d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/.idea/
diff --git a/boot.py b/boot.py
index f833825..908a18a 100755
--- a/boot.py
+++ b/boot.py
@@ -2,14 +2,113 @@
 
 import os
 import sys
-import time
+from syncplay import ep_server
 
-# def runSyncplay(args: list, envs: dict) -> None:
-#     os.execvpe('syncplay-server', ['syncplay-server'] + args, envs)
 
-# runSyncplay(['--password', 'test'], {'PYTHONUNBUFFERED': '1'})
+def checkOpt(args: list, option: str) -> bool:
+    if option not in args:  # option not found
+        return False
+    args.remove(option)  # remove target option
+    return True
 
-print(sys.argv)
-print(os.environ)
 
-time.sleep(200)
+def fetchOpt(args: list, option: str, default):
+    if option not in args:  # option not found
+        return default
+    index = args.index(option)
+    if index + 1 == len(args):
+        print('Error: `%s` missing value' % option, file = sys.stderr)
+        sys.exit(1)
+    targetVal = args[index + 1]
+    del sys.argv[index : index + 2]  # remove target option and value
+    if type(default) == int:
+        return int(targetVal)  # return int value
+    return targetVal
+
+
+isDebug = checkOpt(sys.argv, '--debug')
+
+
+portValue = None  # no specify in default
+if 'PORT' in os.environ:  # `PORT` env variable
+    portValue = int(os.environ['PORT'])
+portValue = fetchOpt(sys.argv, '--port', portValue)
+
+
+passwdStr = None  # no password in default
+if 'PASSWD' in os.environ:  # `PASSWD` env variable
+    passwdStr = os.environ['PASSWD']
+passwdStr = fetchOpt(sys.argv, '--password', passwdStr)
+
+
+saltValue = ''  # using empty string in default
+if 'SALT' in os.environ:  # `SALT` env variable
+    saltValue = os.environ['SALT']
+if checkOpt(sys.argv, '--random-salt'):
+    saltValue = None
+saltValue = fetchOpt(sys.argv, '--salt', saltValue)
+
+
+tlsPath = '/certs'
+if 'TLS_PATH' in os.environ:  # `TLS_PATH` env variable
+    tlsPath = os.environ['TLS_PATH']
+tlsPath = fetchOpt(sys.argv, '--tls', tlsPath)
+
+enableTls = False
+if checkOpt(sys.argv, '--enable-tls'):
+    enableTls = True
+if 'TLS' in os.environ and os.environ['TLS'] in ['ON', 'TRUE']:
+    enableTls = True
+
+
+motdMessage = fetchOpt(sys.argv, '--motd', None)  # without motd message in default
+motdFile = fetchOpt(sys.argv, '--motd-file', None)
+if motdFile is not None:
+    motdMessage = None  # cover motd message
+elif motdMessage is not None:
+    motdFile = '/app/syncplay/motd'
+    os.system('mkdir -p /app/syncplay/')
+    with open(motdFile, mode = 'w', encoding = 'utf-8') as fileObj:
+        fileObj.write(str(motdMessage))
+
+
+if isDebug:  # print debug log
+    if portValue is not None:
+        print('Port -> %d' % portValue)
+
+    if saltValue is None:
+        print('Using random salt', file = sys.stderr)
+    else:
+        print('Salt -> `%s`' % saltValue, file = sys.stderr)
+
+    if passwdStr is None:
+        print('Running without password', file = sys.stderr)
+    else:
+        print('Password -> `%s`' % passwdStr, file = sys.stderr)
+
+    if enableTls:
+        print('TLS enabled -> `%s`' % tlsPath, file = sys.stderr)
+
+    if motdFile is not None:
+        print('MOTD File -> `%s`' % motdFile, file = sys.stderr)
+    if motdMessage is not None:
+        print('MOTD message -> `%s`' % motdMessage, file = sys.stderr)
+
+
+if portValue is not None:
+    sys.argv += ['--port', str(portValue)]
+if passwdStr is not None:
+    sys.argv += ['--password', passwdStr]
+if saltValue is not None:
+    sys.argv += ['--salt', saltValue]
+if enableTls:
+    sys.argv += ['--tls', tlsPath]
+if motdFile is not None:
+    sys.argv += ['--motd-file', motdFile]
+
+
+if isDebug:  # print debug log
+    print('Boot args -> %s' % sys.argv, file = sys.stderr)
+
+
+sys.exit(ep_server.main())
diff --git a/init.sh b/init.sh
deleted file mode 100755
index 43be853..0000000
--- a/init.sh
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/sh
-
-echo "boot start"
-
-args="--salt=$SALT"
-
-[ -n "$TLS" ] && args="$args --tls=$TLS"
-
-[ -n "$PORT" ] && args="$args --port=$PORT"
-
-[ -n "$ISOLATE" ] && args="$args --isolate-rooms"
-
-[ -n "$PASSWORD" ] && args="$args --password=$PASSWORD"
-
-if [ -n "$MOTD" ]; then
-  echo "$MOTD" >> /app/syncplay/motd
-  args="$args --motd-file=/app/syncplay/motd"
-fi
-
-PYTHONUNBUFFERED=1 exec syncplay-server $args $@