diff --git a/old/Dockerfile b/old/Dockerfile
index 4d4d9e7..7ffb4df 100644
--- a/old/Dockerfile
+++ b/old/Dockerfile
@@ -1,39 +1,7 @@
-# Debian base image
-FROM registry.sw3.cz/valicek1/lxcbian-bullseye
+# git bash openssh-server parallel vim cron npm nodejs logrotate
 
-VOLUME /data
-
-# install dependencies
-RUN apt-get update
-RUN apt-get full-upgrade -y --no-install-recommends
-RUN apt-get install -y --no-install-recommends \
-		git bash openssh-server parallel vim cron npm nodejs logrotate
-RUN apt-get clean
-
-# create executor user
-RUN useradd --uid 10000 -ms /bin/bash executor
-
-# install crontab, enable cron
-ADD crontab /etc/cron.d/repo-cloner-executor
-RUN bash -c "dpkg -l | grep cron"
-RUN systemctl enable ssh cron
 ADD dockerbin/* checker/* src/* /usr/local/bin/
-# remove tty autospawn from inittab
-# disable motd
-RUN echo > /etc/motd
-# install tail logger
-RUN npm i frontail -g
 
-# enable frontail at startup
-ADD startup-logcat /usr/local/bin
-ADD logcat.service /etc/systemd/system
-RUN systemctl enable logcat
-
-# enable log dumping & rotation
-ADD startup-logdump /usr/local/bin
-ADD syslog.logrotate /etc/logrotate.d/syslog
-ADD logdump.service /etc/systemd/system
-RUN systemctl enable logdump
 
 RUN ln -fs /usr/share/zoneinfo/Europe/Prague /etc/localtime
 
diff --git a/old/crontab b/old/crontab
deleted file mode 100644
index bea162e..0000000
--- a/old/crontab
+++ /dev/null
@@ -1,5 +0,0 @@
-# executor crontab
-PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
-MAILTO=""
-*	*	*	*	*	executor	/usr/local/bin/cron-command >> /home/executor/cron.log 2>&1
-0	0	*	*	*	executor 	mv /home/executor/cron.log /home/executor/cron.old
diff --git a/repo_cloner/initialization_wizard.py b/repo_cloner/initialization_wizard.py
index 65687bc..1da10e9 100644
--- a/repo_cloner/initialization_wizard.py
+++ b/repo_cloner/initialization_wizard.py
@@ -36,7 +36,7 @@ def parse_args():
 	parser.add_argument(
 		'--base-dir', help = 'path to directory containing whole cloner structure', required = True,
 		default = None, type = str)
-	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected")
+	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected", action = "store_true")
 	args = parser.parse_args()
 	base_dir = Path(args.base_dir)
 
diff --git a/repo_cloner/prepare_git_tree.py b/repo_cloner/prepare_git_tree.py
index 753d885..5647ffa 100644
--- a/repo_cloner/prepare_git_tree.py
+++ b/repo_cloner/prepare_git_tree.py
@@ -85,7 +85,7 @@ def main() -> int:
 	parser.add_argument("target", help = "path where to checkout")
 	parser.add_argument("--checkout", help = "checkout this reference, otherwise default HEAD will be left")
 	parser.add_argument('--debug', '-d', help = "enable debug output", action = 'store_true')
-	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected")
+	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected", action = "store_true")
 	args = parser.parse_args()
 	if args.debug:
 		log.info(f"Setting loglevel to debug")
diff --git a/repo_cloner/process_repository_dir.py b/repo_cloner/process_repository_dir.py
index 2f29c4e..87d639f 100755
--- a/repo_cloner/process_repository_dir.py
+++ b/repo_cloner/process_repository_dir.py
@@ -107,7 +107,7 @@ def main() -> int:
 	parser.add_argument('--base-dir', help = 'path to directory containing whole cloner structure', required = True,
 						default = None, type = str)
 	parser.add_argument('--debug', '-d', help = "enable debug output", action = 'store_true')
-	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected")
+	parser.add_argument('--colored', help = "enable colored log output even tty() is not detected", action = "store_true")
 	args = parser.parse_args()
 	if args.debug:
 		log.setLevel(logging.DEBUG)