diff --git a/.github/workflows/push_docker_test_container.yaml b/.github/workflows/push_docker_test_container.yaml
index a052b7f7..830101ec 100644
--- a/.github/workflows/push_docker_test_container.yaml
+++ b/.github/workflows/push_docker_test_container.yaml
@@ -16,12 +16,18 @@ jobs:
         with:
           fetch-depth: 0
           submodules: 'recursive'
+      - name: Setup Python & Poetry Environment
+        uses: exasol/python-toolbox/.github/actions/python-environment@0.14.0
+        with:
+          python-version: "3.10"
+          poetry-version: '1.8.2'
+
       - name: Build TestContainer
-        run: ./exaslct build-test-container --force-rebuild
+        run: poetry run exaslct build-test-container --force-rebuild
       - name: Push TestContainer image
         if: ${{ (github.ref == 'refs/heads/master') || (github.ref == 'refs/heads/main') }}
         run: |
-          ./exaslct push-test-container --source-docker-username "$SECRET_DOCKER_USER_NAME" --target-docker-username "$SECRET_DOCKER_USER_NAME" --force-push true
+          poetry run exaslct push-test-container --source-docker-username "$SECRET_DOCKER_USER_NAME" --target-docker-username "$SECRET_DOCKER_USER_NAME" --force-push true
         env: # Set the secret as an input
           SECRET_DOCKER_USER_NAME: ${{ secrets.DOCKER_USER_NAME }}
           TARGET_DOCKER_PASSWORD: ${{ secrets.DOCKER_TOKEN }}
@@ -29,7 +35,7 @@ jobs:
       - name: Push  ci-release-test TestContainer image
         if: ${{ (github.ref != 'refs/heads/master') && (github.ref != 'refs/heads/main') }}
         run: |
-          ./exaslct push-test-container --source-docker-username "$SECRET_DOCKER_USER_NAME" --target-docker-username "$SECRET_DOCKER_USER_NAME" --force-push true --source-docker-tag-prefix ci_release_test --target-docker-tag-prefix ci_release_test
+          poetry run exaslct push-test-container --source-docker-username "$SECRET_DOCKER_USER_NAME" --target-docker-username "$SECRET_DOCKER_USER_NAME" --force-push true --source-docker-tag-prefix ci_release_test --target-docker-tag-prefix ci_release_test
         env: # Set the secret as an input
           SECRET_DOCKER_USER_NAME: ${{ secrets.DOCKER_USER_NAME }}
           TARGET_DOCKER_PASSWORD: ${{ secrets.DOCKER_TOKEN }}
diff --git a/aws-code-build/build_config.json b/aws-code-build/build_config.json
index 9c1e4fd6..90b812d2 100644
--- a/aws-code-build/build_config.json
+++ b/aws-code-build/build_config.json
@@ -4,7 +4,6 @@
     "ignore": {
       "paths": [
         ".github",
-        "config",
         "doc",
         "emulator",
         "githooks",
diff --git a/config/.bcc.env b/config/.bcc.env
deleted file mode 100644
index db0acebc..00000000
--- a/config/.bcc.env
+++ /dev/null
@@ -1,68 +0,0 @@
-export BASH_ENV="/usr/share/Modules/init/bash"
-export BUILDSYSTEM_ALIAS="tk.params.-package=src"
-export COLORTERM="truecolor"
-export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/10303/bus"
-export DESKTOP_SESSION="gnome-xorg"
-export DISPLAY=":0"
-export ENV="/usr/share/Modules/init/profile.sh"
-export GDMSESSION="gnome-xorg"
-export GDM_LANG="en_US.UTF-8"
-export GJS_DEBUG_OUTPUT="stderr"
-export GJS_DEBUG_TOPICS="JS ERROR;JS LOG"
-export GNOME_TERMINAL_SCREEN="/org/gnome/Terminal/screen/fcc09306_7178_4ec8_8ab4_4571b7cfc0c1"
-export GNOME_TERMINAL_SERVICE=":1.383136"
-export GOROOT="/home/tk/.local/share/flatpak/runtime/org.freedesktop.Sdk.Extension.golang/x86_64/19.08/active/files"
-export GUESTFISH_INIT="\\e[1;34m"
-export GUESTFISH_OUTPUT="\\e[0m"
-export GUESTFISH_PS1="\\[\\e[1;32m\\]><fs>\\[\\e[0;31m\\] "
-export GUESTFISH_RESTORE="\\e[0m"
-export HISTCONTROL="ignoredups"
-export HISTSIZE="1000"
-export HOME="/home/tk"
-export HOSTNAME="hw2703"
-export KDEDIRS="/usr"
-export KRB5CCNAME="KCM:"
-export LANG="en_US.UTF-8"
-export LESSOPEN="||/usr/bin/lesspipe.sh %s"
-export LOADEDMODULES=""
-export LOGNAME="tk"
-export MAIL="/var/spool/mail/tk"
-export MANPATH=":"
-export MODULEPATH="/etc/scl/modulefiles:/usr/share/Modules/modulefiles:/etc/modulefiles:/usr/share/modulefiles"
-export MODULEPATH_modshare="/usr/share/modulefiles:1:/usr/share/Modules/modulefiles:1:/etc/modulefiles:1"
-export MODULESHOME="/usr/share/Modules"
-export MODULES_CMD="/usr/share/Modules/libexec/modulecmd.tcl"
-export MODULES_RUN_QUARANTINE="LD_LIBRARY_PATH"
-export MOZ_DISABLE_WAYLAND="1"
-export OLDPWD="/home/tk/projects/nosync/git.script-languages-release-0ef1e48e-64r/config"
-export PATH="/home/tk/.local/buildsystem/bin/:/home/tk/bin:/home/tk/.local/buildsystem/bin/:/opt/local/bin:/usr/lib64/qt-3.3/bin:/usr/share/Modules/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/home/tk/projects/ccc/bin"
-export PWD="/home/tk/projects/nosync/git.script-languages-release-0ef1e48e-64r/config"
-export QTDIR="/usr/lib64/qt-3.3"
-export QTINC="/usr/lib64/qt-3.3/include"
-export QTLIB="/usr/lib64/qt-3.3/lib"
-export QT_IM_MODULE="ibus"
-export SESSION_MANAGER="local/unix:@/tmp/.ICE-unix/3083,unix/unix:/tmp/.ICE-unix/3083"
-export SHELL="/bin/bash"
-export SHLVL="2"
-export SSH_AGENT_PID="3101"
-export SSH_AUTH_SOCK="/run/user/10303/keyring/ssh"
-export TERM="xterm-256color"
-export USER="tk"
-export USERNAME="tk"
-export VAULT_ADDR="https://vault.dev.exasol.com"
-export VTE_VERSION="5604"
-export WINDOWPATH="2"
-export XAUTHORITY="/run/user/10303/gdm/Xauthority"
-export XDG_CURRENT_DESKTOP="GNOME"
-export XDG_DATA_DIRS="/home/tk/.local/share/flatpak/exports/share/:/var/lib/flatpak/exports/share/:/usr/local/share/:/usr/share/"
-export XDG_MENU_PREFIX="gnome-"
-export XDG_RUNTIME_DIR="/run/user/10303"
-export XDG_SEAT="seat0"
-export XDG_SESSION_CLASS="user"
-export XDG_SESSION_DESKTOP="gnome-xorg"
-export XDG_SESSION_ID="2"
-export XDG_SESSION_TYPE="x11"
-export XDG_VTNR="2"
-export XMODIFIERS="@im=ibus"
-export ZONE=""
-export _="/usr/bin/env"
diff --git a/config/README.md b/config/README.md
deleted file mode 100644
index 764b1955..00000000
--- a/config/README.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Building Language Container using Exasol's Internal Build Tool
-
-```
-CCC_CONFIG=config/c4.yaml c4 make build
-
-```
-
-For more options check the help with 
-
-```
-CCC_CONFIG=config/c4.yaml c4 make help-more
-
-```
diff --git a/config/build-env b/config/build-env
deleted file mode 100644
index 307ea279..00000000
--- a/config/build-env
+++ /dev/null
@@ -1,3 +0,0 @@
-[Environment]
-
-exaruntime = EXARuntime-7.1.0-dev2
diff --git a/config/c4.yaml b/config/c4.yaml
deleted file mode 100644
index 4fc35706..00000000
--- a/config/c4.yaml
+++ /dev/null
@@ -1,25 +0,0 @@
-tele:
-  sync:
-    - --include=build/
-    - --include=.bcc/
-    - --include=.bcc/build 
-    - --include=.bcc/build/*
-    - --include=.bcc/build/*/.bcc
-  dont_sync:
-    - --exclude=.build/ 
-    - --exclude=.build.ccc 
-    - --exclude=.ccc[.-]*
-    - --exclude=.bcc.env 
-    - --exclude=.env.dump 
-    - --exclude=.ninja_deps
-    - --exclude=.ninja_log 
-    - --exclude=.sconsign.dblite 
-    - --exclude=.sconf_temp
-    - --exclude=JDBC/bin/com/exasol/jdbc/version.res 
-    - --exclude=.git/
-    - --exclude=TAGS
-    - --exclude=*~
-    - --exclude=*.old
-    - --exclude=*.bak
-    - --exclude=*.orig
-    - --exclude=*.swp
diff --git a/config/ccc b/config/ccc
deleted file mode 100644
index 5a6eb851..00000000
--- a/config/ccc
+++ /dev/null
@@ -1,196 +0,0 @@
-#!/usr/bin/env bash
-set -ue
-
-FLAVORS=("standard-EXASOL-7.0.0" "standard-EXASOL-6.2.0" "standard-EXASOL-6.1.0" "python3-ds-EXASOL-6.1.0" "python3-ds-cuda-EXASOL-6.1.0" "r-3.5-data-science-EXASOL-6.1.0")
-FLAVOR=standard-EXASOL-7.0.0
-MODE=FULL
-EXASLCT_TMP="$HOME/exaslct-tmp"
-EXASLCT_BASE_TMP="$EXASLCT_TMP/tmp"
-EXASLCT_BUILD_OUTPUT="$EXASLCT_TMP/.build_output"
-EXPORT_PATH="$BUILDSYSTEM_LINKDIR/export"
-INSTALL_PATH="$BUILDSYSTEM_LINKDIR/install"
-
-## CMD Functions: Help
-_cmd_help()
-{
-  cat <<EOF
-Usage:
-
-    c4 make
-    c4 make build [MODE [FLAVOR_NAME]]
-    
-    Modes: SRC RELEASE LIGHT TEST
-    
-    If you run the build via 
-
-    c4 new --make true --upload true -AC script-languages-release+<branch> <alias>
-
-    you can configure the build via special aliases
-
-    WorkingCopy Alias Pattern: .params__<MODE>(__<FLAVOR_NUMBER>)
-    Flavor Numbers:
-
-EOF
-  total=${#FLAVORS[*]}
-  for (( i=0; i<=$(( $total -1 )); i++ ))
-  do 
-    echo "      $i: ${FLAVORS[$i]}"
-  done
-}
-
-
-get_image_hash()
-{
-  RELEASE_INFO_PATH="$INSTALL_PATH/build_info/image_info/$FLAVOR-release"
-  if [ -e "$RELEASE_INFO_PATH" ]
-  then
-    cat "$RELEASE_INFO_PATH" | jq -r .hash | cut -c 1-8
-  fi
-}
-
-## CMD Functions: General C4 Query Commands - Not explicitly used by the user 
-_cmd_prefix() {
-    prepare_variables
-    if [ "$MODE" != "SRC" ]
-    then
-      HASH=$(get_image_hash)
-      HASH=${HASH:-NOHASH}
-
-      PREFIX=/usr/opt/${EXASUITE}/ScriptLanguages-${FLAVOR}-${MODE}-${HASH}
-      echo "$PREFIX"
-      exit "$?"
-    else
-      PREFIX=/usr/opt/${EXASUITE}/ScriptLanguages-${FLAVOR}-${MODE}
-      echo "$PREFIX"
-      exit "$?"
-    fi
-}
-
-_cmd_provides() {
-  echo script-language-${FLAVOR}-${MODE}
-}
-
-_cmd_requires() {
-  echo
-}
-
-prepare_variables() {
-  # TODO: TOOLCHAIN will be provided in CURRENTTOOLCHAIN and EXARUNTIME will be provided in CCC_BUILDENV_TOOLCHAIN when branch ic.config got merged
-  EXASUITE=EXASuite-7
-  EXARUNTIME=$(cat ./config/build-env | sed -E "s/ +/ /g" | grep "exaruntime = " | cut -f 3 -d " ")  
-  EXARUNTIME_PATH="$EXARUNTIME"
-  TOOLCHAIN="/usr/opt/${EXASUITE}/${EXARUNTIME_PATH}"
-  export PATH="$TOOLCHAIN/bin:$PATH"
-}
-
-prepare_exaslct() {
-  c4 initialize wait docker
-  prepare_variables
-  mkdir -p "$EXASLCT_BASE_TMP"
-  mkdir -p "$EXASLCT_BUILD_OUTPUT"
-  "$CCC_CCC" extract -m "@${EXARUNTIME}"
-  EXASLCT_OPTIONS=(--temporary-base-directory "$EXASLCT_BASE_TMP" --output-directory "$EXASLCT_BUILD_OUTPUT")
-}
-
-_cmd_build_container() {
-  echo _cmd_build_container $*
-  MODE="$1"
-  FLAVOR="$2"
-  prepare_exaslct
-  PIP_INSTALL=YES ./exaslct export --flavor-path="flavors/${FLAVOR}" --export-path "$EXPORT_PATH" "${EXASLCT_OPTIONS[@]}"
-  mkdir -p "$INSTALL_PATH"
-  for f in "$EXPORT_PATH/"*.gz
-  do 
-    echo "Extracting $f"
-    tar xfC "$f" "$INSTALL_PATH"
-  done
-  cp config/pkg.sh "$BUILDSYSTEM_LINKDIR" # We need to copy the pkg.sh, because c4 sees it as part of the final package and you could have different pkg.sh for different build modes
-}
-
-_cmd_build_src_package() {
-  echo "build_src_package"
-  mkdir -p "$INSTALL_PATH" \
-  && cp exaudfclient/base/{debug_message.h,exaudfclient.cc,exaudflib/exaudflib.cc,exaudflib/exaudflib.h,exaudflib/zmqcontainer.proto}  "$INSTALL_PATH";
-}
-
-_parse_alias_parameters() {
-  ALIAS_PARAMETERS=$(echo "$BUILDSYSTEM_ALIAS" | sed -E "s/.*\.params__(SRC|RELEASE|LIGHT|TEST)(__([0-9]+))?$/\1 \3/g")
-  FLAVOR_NUMBER=0
-  if [ "$ALIAS_PARAMETERS" != "$BUILDSYSTEM_ALIAS" ]
-  then
-    MODE=$(echo "$ALIAS_PARAMETERS" | cut -f1 -d " ")
-    FLAVOR_NUMBER=$(echo "$ALIAS_PARAMETERS" | cut -f2 -d " ")
-  fi  
-  if [ -n "$FLAVOR_NUMBER" ]
-  then
-    FLAVOR="${FLAVORS[$FLAVOR_NUMBER]}"
-  fi
-}
-
-_cmd_build() {
-  mkdir -p "$BUILDSYSTEM_LINKDIR"
-  if [ -d .git ] && [ -e .ccc/c4_play_init ]
-  then
-    echo "Update submodule as workaround for missing recursive checkout"
-    git submodule update
-  fi
-  
-  if [ "$MODE" == "SRC" ] 
-  then
-    _cmd_build_src_package
-  else
-    _cmd_build_container "$MODE" "$FLAVOR"
-  fi
-}
-
-_cmd_clean() {
-  prepare_exaslct
-  echo "Cleaning"
-#  PIP_INSTALL=YES ./exaslct clean-flavor-images --flavor-path "flavors/${FLAVOR}" "${EXASLCT_OPTIONS[@]}"
-  rm -rf "$EXASLCT_TMP"
-  rm -rf "$INSTALL_PATH"
-  rm -rf "$EXPORT_PATH/"*.gz
-  rm -rf "$BUILDSYSTEM_LINKDIR"
-}
-
-_cmd_test() {
-  prepare_exaslct
-  PIP_INSTALL=YES ./exaslct run-db-test --flavor-path "flavors/${FLAVOR}" "${EXASLCT_OPTIONS[@]}"
-}
-
-_parse_alias_parameters
-## Command Switch
-if [ "$1" = prefix ]; then
-  _cmd_prefix
-elif [ "$1" = build ]; then
-  shift 1
-  remaining_args=( "$@" )
-  if [ "$#" -ge 1 ]; then
-    current_arg="${remaining_args[0]}"
-    if [ -n "$current_arg" ]
-    then
-      MODE="$current_arg"
-    fi
-  fi
-  if [ "$#" -ge 2 ]; then
-    current_arg="${remaining_args[1]}"
-    if [ -n "$current_arg" ]
-    then
-      FLAVOR="$current_arg"
-    fi
-  fi
-  _cmd_build 2>&1 | tee c4-make.log 
-elif [ "$1" = "clean" ]; then
-  _cmd_clean
-elif [ "$1" = provides ]; then
-  _cmd_provides
-elif [ "$1" = requires ]; then
-  _cmd_requires
-elif [ "$1" = test ]; then
-  shift
-  _cmd_test "$@"
-elif [ "$1" = "help-more" ]; then # help is already in use by main c4 path
-  _cmd_help
-else
-  _cmd_build 2>&1 | tee c4-make.log 
-fi
diff --git a/config/docker-daemon.json b/config/docker-daemon.json
deleted file mode 100644
index e8bd2008..00000000
--- a/config/docker-daemon.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-	    "data-root": "/home/admin/docker-data"
-}
diff --git a/config/pkg.sh b/config/pkg.sh
deleted file mode 100755
index fb13e18c..00000000
--- a/config/pkg.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# this script implements packaging interface of the working copy
-# it must implement at least three methods:
-#
-# * tar         - stream the installation directory (DIR)
-#                 of the working copy to stdout.
-#                 The script must be called from the parent directory
-#                 of the installation directory
-#                 (used by `c4 upload`)
-#
-# * extract     - extract fetched archive to the installation directory
-#                 (used by `c4 fetch`)
-#
-# * methods     - show the list of supported methods (one method per line)
-
-case "$1" in
-  extract)
-    OUTPUT_DIR=install
-    mkdir -p $OUTPUT_DIR
-    for i in *.tar.gz; do
-      tar xf "$i" -C "$OUTPUT_DIR"
-    done
-    ;;
-  tar)
-    tar c .pkg.sh install
-    ;;
-  methods)
-    echo "extract methods tar" | xargs -n1 echo
-    ;;
-  *)
-    echo "Usage: $0 extract|create|methods"
-    exit 1
-    ;;
-esac
-
diff --git a/doc/changes/changes_9.0.0.md b/doc/changes/changes_9.0.0.md
index af556f11..707754cd 100644
--- a/doc/changes/changes_9.0.0.md
+++ b/doc/changes/changes_9.0.0.md
@@ -45,6 +45,7 @@ This release uses version 1.0.0 of the container tool.
   - #993: Added escape sequence for backslash in new Script Options parser
   - #1002: Use ECR fallback repository for Trivy caching
   - #958: Fix conda version conflict
+  - #1014: Fixed Push Docker Test Container workflow
 
 ## Doc