diff --git a/Dockerfile b/Dockerfile
index 14c189e..8ac0faf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,17 +3,6 @@ FROM python:3.9-slim-bullseye
 # Install dependencies
 RUN apt-get update && apt-get -y upgrade && apt-get install -y git-core
 
-# Prepare the application
-COPY . /app
-
-# disable upgrading setup tools due to bug in setuptools and automation sdk
-# once this is fixed, switch back to: pip3 install --upgrade pip setuptools
-RUN cd /app && \
-    pip3 install --upgrade pip && \
-    pip3 install --force-reinstall 'setuptools==60.10.0' && \
-    pip3 install -r requirements.txt && \
-    pip3 install --upgrade git+https://github.com/vmware/vsphere-automation-sdk-python.git
-
 # Run the application
 WORKDIR /app
 
@@ -22,8 +11,20 @@ RUN set -eux; \
   adduser --uid 1000 --ingroup netbox-sync --shell /bin/sh --home /home/netbox-sync --disabled-password \
           --gecos "netbox-sync,0815,2342,9001" netbox-sync
 
+# Prepare the application
+COPY Dockerfile LICENSE.txt netbox-sync.py README.md requirements.txt settings-example.ini /app/
+COPY module /app/module
+
 RUN chown -R netbox-sync:netbox-sync /app
 
+# disable upgrading setup tools due to bug in setuptools and automation sdk
+# once this is fixed, switch back to: pip3 install --upgrade pip setuptools
+RUN cd /app && \
+    pip3 install --upgrade pip && \
+    pip3 install --force-reinstall 'setuptools==60.10.0' && \
+    pip3 install -r requirements.txt && \
+    pip3 install --upgrade git+https://github.com/vmware/vsphere-automation-sdk-python.git
+
 USER netbox-sync
 
 ENTRYPOINT ["python3", "netbox-sync.py"]
diff --git a/README.md b/README.md
index fe4e589..e02e18c 100644
--- a/README.md
+++ b/README.md
@@ -132,7 +132,7 @@ usage: netbox-sync.py [-h] [-c settings.ini]
 
 Sync objects from various sources to NetBox
 
-Version: 1.2.2 (2022-01-27)
+Version: 1.2.3 (2022-04-09)
 Project URL: https://github.com/bb-ricardo/netbox-sync
 
 optional arguments:
diff --git a/netbox-sync.py b/netbox-sync.py
index d931143..88d2cac 100755
--- a/netbox-sync.py
+++ b/netbox-sync.py
@@ -25,8 +25,8 @@
 from module.sources import instantiate_sources
 
 
-__version__ = "1.2.2"
-__version_date__ = "2022-01-27"
+__version__ = "1.2.3"
+__version_date__ = "2022-04-09"
 __author__ = "Ricardo Bartels <ricardo.bartels@telekom.de>"
 __description__ = "NetBox Sync"
 __license__ = "MIT"
diff --git a/scripts/publish_docker.sh b/scripts/publish_docker.sh
new file mode 100755
index 0000000..4a03737
--- /dev/null
+++ b/scripts/publish_docker.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+IMAGE_NAME="bbricardo/netbox-sync"
+IMAGE_TAG=$(grep "^__version__" netbox-sync.py | sed 's/__version__ = "\(.*\)"/\1/g')
+
+if [[ -z "$IMAGE_TAG" ]]; then
+  echo "ERROR: unable to grep version from 'netbox-sync.py'"
+  exit 1
+fi
+
+find . -name "__pycache__" -delete
+docker build -t "${IMAGE_NAME}:${IMAGE_TAG}" .
+docker tag "${IMAGE_NAME}:${IMAGE_TAG}" "${IMAGE_NAME}:latest"
+docker push "${IMAGE_NAME}:${IMAGE_TAG}"
+docker push "${IMAGE_NAME}:latest"
+
+docker-pushrm "$IMAGE_NAME"