diff --git a/Dell_iDRAC_fan_controller.sh b/Dell_iDRAC_fan_controller.sh
index 393719a..a932c9a 100644
--- a/Dell_iDRAC_fan_controller.sh
+++ b/Dell_iDRAC_fan_controller.sh
@@ -4,99 +4,7 @@
 # Not working in some setups : https://github.com/tigerblue77/Dell_iDRAC_fan_controller/issues/48
 # set -euo pipefail
 
-# Define global functions
-# This function applies Dell's default dynamic fan control profile
-function apply_Dell_fan_control_profile () {
-  # Use ipmitool to send the raw command to set fan control to Dell default
-  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x01 > /dev/null
-  CURRENT_FAN_CONTROL_PROFILE="Dell default dynamic fan control profile"
-}
-
-# This function applies a user-specified static fan control profile
-function apply_user_fan_control_profile () {
-  # Use ipmitool to send the raw command to set fan control to user-specified value
-  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x00 > /dev/null
-  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x02 0xff $HEXADECIMAL_FAN_SPEED > /dev/null
-  CURRENT_FAN_CONTROL_PROFILE="User static fan control profile ($DECIMAL_FAN_SPEED%)"
-}
-
-# Retrieve temperature sensors data using ipmitool
-# Usage : retrieve_temperatures $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
-function retrieve_temperatures () {
-  if (( $# != 2 ))
-  then
-    printf "Illegal number of parameters.\nUsage: retrieve_temperatures \$IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT \$IS_CPU2_TEMPERATURE_SENSOR_PRESENT" >&2
-    return 1
-  fi
-  local IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT=$1
-  local IS_CPU2_TEMPERATURE_SENSOR_PRESENT=$2
-
-  local DATA=$(ipmitool -I $IDRAC_LOGIN_STRING sdr type temperature | grep degrees)
-
-  # Parse CPU data
-  local CPU_DATA=$(echo "$DATA" | grep "3\." | grep -Po '\d{2}')
-  CPU1_TEMPERATURE=$(echo $CPU_DATA | awk '{print $1;}')
-  if $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
-  then
-    CPU2_TEMPERATURE=$(echo $CPU_DATA | awk '{print $2;}')
-  else
-    CPU2_TEMPERATURE="-"
-  fi
-
-  # Parse inlet temperature data
-  INLET_TEMPERATURE=$(echo "$DATA" | grep Inlet | grep -Po '\d{2}' | tail -1)
-
-  # If exhaust temperature sensor is present, parse its temperature data
-  if $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT
-  then
-    EXHAUST_TEMPERATURE=$(echo "$DATA" | grep Exhaust | grep -Po '\d{2}' | tail -1)
-  else
-    EXHAUST_TEMPERATURE="-"
-  fi
-}
-
-function enable_third_party_PCIe_card_Dell_default_cooling_response () {
-  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
-  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x00 0x00 0x00 > /dev/null
-}
-
-function disable_third_party_PCIe_card_Dell_default_cooling_response () {
-  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
-  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x01 0x00 0x00 > /dev/null
-}
-
-# Returns :
-# - 0 if third-party PCIe card Dell default cooling response is currently DISABLED
-# - 1 if third-party PCIe card Dell default cooling response is currently ENABLED
-# - 2 if the current status returned by ipmitool command output is unexpected
-# function is_third_party_PCIe_card_Dell_default_cooling_response_disabled() {
-#   THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE=$(ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x01 0x16 0x05 0x00 0x00 0x00)
-
-#   if [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 01 00 00" ]; then
-#     return 0
-#   elif [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 00 00 00" ]; then
-#     return 1
-#   else
-#     echo "Unexpected output: $THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" >&2
-#     return 2
-#   fi
-# }
-
-# Prepare traps in case of container exit
-function gracefull_exit () {
-  apply_Dell_fan_control_profile
-  enable_third_party_PCIe_card_Dell_default_cooling_response
-  echo "/!\ WARNING /!\ Container stopped, Dell default dynamic fan control profile applied for safety."
-  exit 0
-}
-
-# Helps debugging when people are posting their output
-function get_Dell_server_model () {
-  IPMI_FRU_content=$(ipmitool fru 2>/dev/null) # FRU stands for "Field Replaceable Unit"
-
-  SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | grep "Product Manufacturer" | awk -F ': ' '{print $2}')
-  SERVER_MODEL=$(echo "$IPMI_FRU_content" | grep "Product Name" | awk -F ': ' '{print $2}')
-}
+source functions.sh
 
 # Trap the signals for container exit and run gracefull_exit function
 trap 'gracefull_exit' SIGQUIT SIGKILL SIGTERM
diff --git a/Dockerfile b/Dockerfile
index 3c9d72c..523ca2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,9 +6,12 @@ RUN apt-get update
 
 RUN apt-get install ipmitool -y
 
-ADD Dell_iDRAC_fan_controller.sh /Dell_iDRAC_fan_controller.sh
+ADD functions.sh /app/functions.sh
+ADD Dell_iDRAC_fan_controller.sh /app/Dell_iDRAC_fan_controller.sh
 
-RUN chmod 0777 /Dell_iDRAC_fan_controller.sh
+RUN chmod 0777 /app/functions.sh /app/Dell_iDRAC_fan_controller.sh
+
+WORKDIR /app
 
 # you should override these default values when running. See README.md
 #ENV IDRAC_HOST 192.168.1.100
@@ -20,4 +23,4 @@ ENV CPU_TEMPERATURE_THRESHOLD 50
 ENV CHECK_INTERVAL 60
 ENV DISABLE_THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE false
 
-CMD ["/Dell_iDRAC_fan_controller.sh"]
+CMD ["./Dell_iDRAC_fan_controller.sh"]
diff --git a/functions.sh b/functions.sh
new file mode 100644
index 0000000..a70bb9c
--- /dev/null
+++ b/functions.sh
@@ -0,0 +1,93 @@
+# Define global functions
+# This function applies Dell's default dynamic fan control profile
+function apply_Dell_fan_control_profile () {
+  # Use ipmitool to send the raw command to set fan control to Dell default
+  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x01 > /dev/null
+  CURRENT_FAN_CONTROL_PROFILE="Dell default dynamic fan control profile"
+}
+
+# This function applies a user-specified static fan control profile
+function apply_user_fan_control_profile () {
+  # Use ipmitool to send the raw command to set fan control to user-specified value
+  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x00 > /dev/null
+  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x02 0xff $HEXADECIMAL_FAN_SPEED > /dev/null
+  CURRENT_FAN_CONTROL_PROFILE="User static fan control profile ($DECIMAL_FAN_SPEED%)"
+}
+
+# Retrieve temperature sensors data using ipmitool
+# Usage : retrieve_temperatures $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
+function retrieve_temperatures () {
+  if (( $# != 2 ))
+  then
+    printf "Illegal number of parameters.\nUsage: retrieve_temperatures \$IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT \$IS_CPU2_TEMPERATURE_SENSOR_PRESENT" >&2
+    return 1
+  fi
+  local IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT=$1
+  local IS_CPU2_TEMPERATURE_SENSOR_PRESENT=$2
+
+  local DATA=$(ipmitool -I $IDRAC_LOGIN_STRING sdr type temperature | grep degrees)
+
+  # Parse CPU data
+  local CPU_DATA=$(echo "$DATA" | grep "3\." | grep -Po '\d{2}')
+  CPU1_TEMPERATURE=$(echo $CPU_DATA | awk '{print $1;}')
+  if $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
+  then
+    CPU2_TEMPERATURE=$(echo $CPU_DATA | awk '{print $2;}')
+  else
+    CPU2_TEMPERATURE="-"
+  fi
+
+  # Parse inlet temperature data
+  INLET_TEMPERATURE=$(echo "$DATA" | grep Inlet | grep -Po '\d{2}' | tail -1)
+
+  # If exhaust temperature sensor is present, parse its temperature data
+  if $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT
+  then
+    EXHAUST_TEMPERATURE=$(echo "$DATA" | grep Exhaust | grep -Po '\d{2}' | tail -1)
+  else
+    EXHAUST_TEMPERATURE="-"
+  fi
+}
+
+function enable_third_party_PCIe_card_Dell_default_cooling_response () {
+  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
+  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x00 0x00 0x00 > /dev/null
+}
+
+function disable_third_party_PCIe_card_Dell_default_cooling_response () {
+  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
+  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x01 0x00 0x00 > /dev/null
+}
+
+# Returns :
+# - 0 if third-party PCIe card Dell default cooling response is currently DISABLED
+# - 1 if third-party PCIe card Dell default cooling response is currently ENABLED
+# - 2 if the current status returned by ipmitool command output is unexpected
+# function is_third_party_PCIe_card_Dell_default_cooling_response_disabled() {
+#   THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE=$(ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x01 0x16 0x05 0x00 0x00 0x00)
+
+#   if [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 01 00 00" ]; then
+#     return 0
+#   elif [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 00 00 00" ]; then
+#     return 1
+#   else
+#     echo "Unexpected output: $THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" >&2
+#     return 2
+#   fi
+# }
+
+# Prepare traps in case of container exit
+function gracefull_exit () {
+  apply_Dell_fan_control_profile
+  enable_third_party_PCIe_card_Dell_default_cooling_response
+  echo "/!\ WARNING /!\ Container stopped, Dell default dynamic fan control profile applied for safety."
+  exit 0
+}
+
+# Helps debugging when people are posting their output
+function get_Dell_server_model () {
+  IPMI_FRU_content=$(ipmitool fru 2>/dev/null) # FRU stands for "Field Replaceable Unit"
+
+  SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | grep "Product Manufacturer" | awk -F ': ' '{print $2}')
+  SERVER_MODEL=$(echo "$IPMI_FRU_content" | grep "Product Name" | awk -F ': ' '{print $2}')
+}