diff --git a/c4/docker-compose.yml b/c4/docker-compose.yml
index 43a3169..584dfb5 100644
--- a/c4/docker-compose.yml
+++ b/c4/docker-compose.yml
@@ -61,7 +61,7 @@ services:
       - "connector-db"
 
   connector_db:
-    container_name: bridgehead_connector_db
+    container_name: bridgehead_c4_connector_db
     image: postgres:10.17
     environment:
       POSTGRES_HOST: ${CONNECTOR_DB_HOST}
@@ -79,7 +79,7 @@ services:
 
 
   idmanager:
-    container_name: bridgehead-idmanager
+    container_name: bridgehead_c4_idmanager
     image: docker.verbis.dkfz.de/pseudonymisierung/magicpl:0.2.0-RC23
     environment:
       MAGICPL_MAINZELLISTE_URL: ${MAGICPL_MAINZELLISTE_URL}
@@ -111,7 +111,7 @@ services:
       - "samply"
 
   patientlist:
-    container_name: bridgehead-patientlist
+    container_name: bridgehead_c4_patientlist
     image: medicalinformatics/mainzelliste:develop
     environment:
       ML_DB_DRIVER: org.postgresql.Driver
@@ -140,7 +140,7 @@ services:
       - "samply"
 
   patientlist_db:
-    container_name: bridgehead_patientlist_db
+    container_name: bridgehead_c4_patientlist_db
     image: postgres:13.1-alpine
     environment:
       POSTGRES_DB: ${ML_DB_NAME}
@@ -153,7 +153,7 @@ services:
       - "samply"
 
   store:
-    container_name: bridgeheadstore
+    container_name: bridgehead_c4_store
     image: docker.verbis.dkfz.de/ccp/samply.store:release-5.1.2
     environment:
       MDR_URL: ${CCP_MDR_URL}
@@ -176,7 +176,7 @@ services:
       - "samply"
 
   store_db:
-    container_name: bridgehead_store_db
+    container_name: bridgehead_c4_store_db
     image: postgres:9.5-alpine
     command: postgres -c datestyle='iso, dmy'
     environment:
diff --git a/dktk/docker-compose.yml b/dktk/docker-compose.yml
index b26c6b2..c8ef8fd 100644
--- a/dktk/docker-compose.yml
+++ b/dktk/docker-compose.yml
@@ -60,7 +60,7 @@ services:
       - "connector-db"
 
   connector_db:
-    container_name: bridgehead_connector_db
+    container_name: bridgehead_dktk_connector_db
     image: postgres:10.17
     environment:
       POSTGRES_HOST: ${CONNECTOR_DB_HOST}
@@ -76,7 +76,7 @@ services:
 
 
   idmanager:
-    container_name: bridgehead-idmanager
+    container_name: bridgehead_dktk_idmanager
     image: docker.verbis.dkfz.de/pseudonymisierung/magicpl:0.2.0-RC23
     environment:
       MAGICPL_MAINZELLISTE_URL: ${MAGICPL_MAINZELLISTE_URL}
@@ -108,7 +108,7 @@ services:
       - "samply"
 
   patientlist:
-    container_name: bridgehead-patientlist
+    container_name: bridgehead_dktk_patientlist
     image: medicalinformatics/mainzelliste:develop
     environment:
       ML_DB_DRIVER: org.postgresql.Driver
@@ -137,7 +137,7 @@ services:
       - "samply"
 
   patientlist_db:
-    container_name: bridgehead_patientlist_db
+    container_name: bridgehead_dktk_patientlist_db
     image: postgres:13.1-alpine
     environment:
       POSTGRES_DB: ${ML_DB_NAME}
diff --git a/install-bridgehead.sh b/install-bridgehead.sh
index 24c86cf..d360453 100755
--- a/install-bridgehead.sh
+++ b/install-bridgehead.sh
@@ -6,32 +6,29 @@ source lib/functions.sh
 exitIfNotRoot
 
 if ! ./lib/prerequisites.sh; then
-    echo "Prerequisites failed, exiting"
+    log "Prerequisites failed, exiting"
     exit 1
 fi
 source site.conf
 
-_systemd_path=/etc/systemd/system/
-
-
-echo -e "\nInstalling systemd units ..."
+log -e "\nInstalling systemd units ..."
 cp -v \
     lib/systemd/bridgehead\@.service \
     lib/systemd/bridgehead-update\@.service \
     lib/systemd/bridgehead-update\@.timer \
-    $_systemd_path
+    /etc/systemd/system/
 
 systemctl daemon-reload
 
 echo
 
 if ! systemctl is-active --quiet bridgehead@"${project}"; then
-    echo "Enabling autostart of bridgehead@${project}.service"
+    log "Enabling autostart of bridgehead@${project}.service"
     systemctl enable bridgehead@"${project}"
-    echo "Enabling nightly updates for bridgehead@${project}.service ..."
+    log "Enabling nightly updates for bridgehead@${project}.service ..."
     systemctl enable --now bridgehead-update@"${project}".timer
 fi
 
-echo -e "\nDone - now start your bridgehead by running\n\tsystemctl start bridgehead@${project}.service\nor by rebooting your machine."
+log -e "\nDone - now start your bridgehead by running\n\tsystemctl start bridgehead@${project}.service\nor by rebooting your machine."
 
 # TODO: Configuration of the different modules
diff --git a/update-bridgehead.sh b/update-bridgehead.sh
index 2af6156..b00e376 100755
--- a/update-bridgehead.sh
+++ b/update-bridgehead.sh
@@ -3,18 +3,14 @@ service="bridgehead"
 
 source lib/functions.sh
 
+if ! ./prerequisites.sh; then
+    log "Prerequisites failed, exiting"
+    exit
+fi
+
 log "INFO" "Checking for updates of $service"
 # check prerequisites
-##TODO: Move to lib/prereq.sh
-prerequisites="git docker docker-compose"
-for prerequisite in $prerequisites; do
-  $prerequisite --version 2>&1
-  is_available=$?
-  if [ $is_available -gt 0 ]; then
-    log "ERROR" "Prerequisite not fulfilled - $prerequisite is not available!"
-    exit 79
-  fi
-done
+
 # check if updates are available
 old_git_hash="$(git rev-parse --verify HEAD)"
 git fetch 2>&1