Added server model printing at container startup

Dell_iDRAC_fan_controller.sh

@@ -90,6 +90,23 @@ function gracefull_exit () {
   exit 0
 }
 
+# Help 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
+  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=$(dmidecode -s system-manufacturer)
+  SERVER_MODEL=$(dmidecode -s system-product-name)
+
+  apt-get remove --purge dmidecode -qq > /dev/null
+  apt-get clean -qq
+}
+
 # Trap the signals for container exit and run gracefull_exit function
 trap 'gracefull_exit' SIGQUIT SIGKILL SIGTERM
 
@@ -113,6 +130,9 @@ echo "iDRAC/IPMI host: $IDRAC_HOST"
 # Check if the iDRAC host is set to 'local' or not then set the IDRAC_LOGIN_STRING accordingly
 if [[ $IDRAC_HOST == "local" ]]
 then
+  get_Dell_server_model
+  echo "Server model: $SERVER_MANUFACTURER $SERVER_MODEL"
+
   # Check that the Docker host IPMI device (the iDRAC) has been exposed to the Docker container
   if [ ! -e "/dev/ipmi0" ] && [ ! -e "/dev/ipmi/0" ] && [ ! -e "/dev/ipmidev/0" ]; then
     echo "/!\ Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0, check that you added the device to your Docker container or stop using local mode. Exiting." >&2

README.md

@@ -81,7 +81,9 @@ 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
 ```
 
@@ -112,6 +114,8 @@ 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
@@ -121,6 +125,7 @@ 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: