Improved code by enabling it to run in LAN mode and removing capability which was required by dmidecode

Dell_iDRAC_fan_controller.sh

@@ -90,21 +90,12 @@ function gracefull_exit () {
   exit 0
 }
 
-# Help debugging when people are posting their output
+# Helps debugging when people are posting their output
-# /!\ This function only works when started in local mode /!\
 function get_Dell_server_model () {
-  # Check that the Docker host IPMI device (the iDRAC) has been exposed to the Docker container
+  IPMI_FRU_content=$(ipmitool fru 2>/dev/null) # FRU stands for "Field Replaceable Unit"
-  if [ ! -e "/dev/mem" ]; then
-    echo "/!\ Could not open device at /dev/mem, check that you added the device to your Docker container or stop using local mode. Exiting." >&2
-    exit 1
-  fi
-  apt-get install dmidecode -qq > /dev/null 2>&1
 
-  SERVER_MANUFACTURER=$(dmidecode -s system-manufacturer)
+  SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | grep "Product Manufacturer" | awk -F ': ' '{print $2}')
-  SERVER_MODEL=$(dmidecode -s system-product-name)
+  SERVER_MODEL=$(echo "$IPMI_FRU_content" | grep "Product Name" | awk -F ': ' '{print $2}')
-
-  apt-get remove --purge dmidecode -qq > /dev/null
-  apt-get clean -qq
 }
 
 # Trap the signals for container exit and run gracefull_exit function

README.md

@@ -81,9 +81,7 @@ docker run -d \
   -e CPU_TEMPERATURE_THRESHOLD=<decimal temperature threshold> \
   -e CHECK_INTERVAL=<seconds between each check> \
   -e DISABLE_THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE=<true or false> \
-  --cap-add SYS_RAWIO \
   --device=/dev/ipmi0:/dev/ipmi0:rw \
-  --device=/dev/mem:/dev/mem:ro \
   tigerblue77/dell_idrac_fan_controller:latest
 ```
 
@@ -114,8 +112,6 @@ services:
   Dell_iDRAC_fan_controller:
     image: tigerblue77/dell_idrac_fan_controller:latest
     container_name: Dell_iDRAC_fan_controller
-    cap_add:
-      - SYS_RAWIO # Required for dmidecode to work
     restart: unless-stopped
     environment:
       - IDRAC_HOST=local
@@ -125,7 +121,6 @@ services:
       - DISABLE_THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE=<true or false>
     devices:
       - /dev/ipmi0:/dev/ipmi0:rw
-      - /dev/mem:/dev/mem:rw # Required for dmidecode to work
 ```
 
 2. to use with LAN iDRAC: