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fanmgmt.sh
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fanmgmt.sh
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#!/bin/bash
SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
CONFIG="$SCRIPT_DIR/fanmgmt.conf"
CONNECTION_STR=""
CRIT_TEMP_FLAG="False"
COLD_TEMP_FLAG="False"
F9="False"
F8="False"
F7="False"
F6="False"
F5="False"
F4="False"
F3="False"
TOOLS="curl smartctl sensors"
source "$CONFIG"
CPU_PERC90=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.9" | bc -l)")
CPU_PERC80=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.8" | bc -l)")
CPU_PERC70=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.7" | bc -l)")
CPU_PERC60=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.6" | bc -l)")
CPU_PERC50=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.5" | bc -l)")
CPU_PERC40=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.4" | bc -l)")
CPU_PERC30=$(printf "%.0f" "$(echo "$CPU_CRITICAL_TEMP * 0.2" | bc -l)")
HDD_PERC90=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.95" | bc -l)")
HDD_PERC80=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.9" | bc -l)")
HDD_PERC70=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.85" | bc -l)")
HDD_PERC60=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.8" | bc -l)")
HDD_PERC50=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.75" | bc -l)")
HDD_PERC40=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.7" | bc -l)")
HDD_PERC30=$(printf "%.0f" "$(echo "$HDD_CRITICAL_TEMP * 0.35" | bc -l)")
if [[ $AUTHMETHOD == 'key' ]]; then
CONNECTION_STR="ssh -i $KEY -o KexAlgorithms=diffie-hellman-group14-sha1 -o HostKeyAlgorithms=ssh-rsa -o PubkeyAcceptedKeyTypes=ssh-rsa $USER@$HOST"
elif [[ $AUTHMETHOD == 'password' ]]; then
TOOLS+=" sshpass"
CONNECTION_STR="sshpass -p $PASS ssh -o KexAlgorithms=diffie-hellman-group14-sha1 -o HostKeyAlgorithms=ssh-rsa $USER@$HOST"
else
echo "Invalid AUTHMETHOD in config. Aborting." >&2
exit 1
fi
for tool in $TOOLS
do
if ! command -v "${tool}" >/dev/null 2>&1; then
echo "${0##*/}: ${tool} is not installed. Aborting." >&2
exit 1
fi
done
function send_email() {
curl --url "smtp://$SMTP_SERVER:$SMTP_PORT" \
--ssl-reqd \
--tlsv1.2 \
--mail-from "$SMTP_USERNAME" \
--mail-rcpt "$RECIPIENT" \
--user "$SMTP_USERNAME:$SMTP_PASSWORD" \
-T <(echo -e "$@")
>&2 echo "<4> Email sent: $*"
}
function unset_flags() {
CRIT_TEMP_FLAG="False"
COLD_TEMP_FLAG="False"
F9="False"
F8="False"
F7="False"
F6="False"
F5="False"
F4="False"
F3="False"
>&2 echo "<5> Flags unset"
}
function set_fanspeed() {
ssh_failed="False"
eval "${CONNECTION_STR} 'fan p 0 max $1'" >/dev/null 2>&1 || ssh_failed="True"
eval "${CONNECTION_STR} 'fan p 0 min $2'" >/dev/null 2>&1 || ssh_failed="True"
if [[ $ssh_failed == "False" ]]; then
>&2 echo "<5> Fan speed changed to (max,min): $1,$2"
else
subject="[HP Server] [ALERT] Cannot connect to ILO!"
body="Cannot connect to ILO host: $HOST\n
TEMPERATURES:
SSD: $HDD1
HDD2: $HDD2
HDD3: $HDD3
HDD4: $HDD4
CPU0: $CPU0
CPU1: $CPU1
CPU2: $CPU2
CPU3: $CPU3
CPU Package: $CPUP"
message="Subject: $subject\n\n$body"
>&2 echo "<3> Cannot connect to ILO host: $HOST"
send_email "$message"
return 1
fi
}
while true;
do
HDD1=$(smartctl -A /dev/disk/by-id/$HDD1_ID | grep "194 Temperature_Celsius" | grep -Eo '[0-9.]+' | sed '7q;d')
HDD2=$(smartctl -A /dev/disk/by-id/$HDD2_ID | grep "194 Temperature_Celsius" | grep -Eo '[0-9.]+' | sed '7q;d')
HDD3=$(smartctl -A /dev/disk/by-id/$HDD3_ID | grep "194 Temperature_Celsius" | grep -Eo '[0-9.]+' | sed '7q;d')
HDD4=$(smartctl -A /dev/disk/by-id/$HDD4_ID | grep "194 Temperature_Celsius" | grep -Eo '[0-9.]+' | sed '7q;d')
# Change sensors name in case these are different for your CPU
# these can be obtained with command: sensors
CPU0=$(sensors -Aj coretemp-isa-0000 | jq -s '.[] | .[] | ."Core 0" | .temp2_input')
CPU1=$(sensors -Aj coretemp-isa-0000 | jq -s '.[] | .[] | ."Core 1" | .temp3_input')
CPU2=$(sensors -Aj coretemp-isa-0000 | jq -s '.[] | .[] | ."Core 2" | .temp4_input')
CPU3=$(sensors -Aj coretemp-isa-0000 | jq -s '.[] | .[] | ."Core 3" | .temp5_input')
CPUP=$(sensors -Aj coretemp-isa-0000 | jq -s '.[] | .[] | ."Package id 0" | .temp1_input')
>&2 echo "<5> CPU0: $CPU0 | CPU1: $CPU1 | CPU2: $CPU2 | CPU3: $CPU3 | CPU Package: $CPUP | SSD: $HDD1 | HDD2: $HDD2 | HDD3: $HDD3 | HDD4: $HDD4"
if [[ $HDD1 -ge $HDD_CRITICAL_TEMP || $HDD2 -ge $HDD_CRITICAL_TEMP || $HDD3 -ge $HDD_CRITICAL_TEMP || $HDD4 -ge $HDD_CRITICAL_TEMP || $CPU0 -ge $CPU_CRITICAL_TEMP || $CPU1 -ge $CPU_CRITICAL_TEMP || $CPU2 -ge $CPU_CRITICAL_TEMP || $CPU3 -ge $CPU_CRITICAL_TEMP || $CPUP -ge $CPU_CRITICAL_TEMP ]]; then
if [[ $CRIT_TEMP_FLAG == "False" ]]; then
set_fanspeed $MAX $CRIT_MIN || { sleep 60; continue; }
subject="[HP Server] [ALERT] Server is boiling!"
body="TEMPERATURES:\n
SSD: $HDD1
HDD2: $HDD2
HDD3: $HDD3
HDD4: $HDD4
CPU0: $CPU0
CPU1: $CPU1
CPU2: $CPU2
CPU3: $CPU3
CPU Package: $CPUP"
message="Subject: $subject\n\n$body"
send_email "$message"
fi
if [[ $CRIT_TEMP_FLAG == "True" ]]; then
subject="[HP Server] [ALERT] Server is shutting down!"
body="TEMPERATURES:\n
SSD: $HDD1
HDD2: $HDD2
HDD3: $HDD3
HDD4: $HDD4
CPU0: $CPU0
CPU1: $CPU1
CPU2: $CPU2
CPU3: $CPU3
CPU Package: $CPUP
FLAG: $CRIT_TEMP_FLAG"
message="Subject: $subject\n\n$body"
send_email "$message"
shutdown
else
unset_flags
CRIT_TEMP_FLAG="True"
>&2 echo "<4> CRIT_TEMP_FLAG=$CRIT_TEMP_FLAG"
fi
elif [[ $HDD1 -ge $HDD_PERC90 || $HDD2 -ge $HDD_PERC90 || $HDD3 -ge $HDD_PERC90 || $HDD4 -ge $HDD_PERC90 || $CPU0 -ge $CPU_PERC90 || $CPU1 -ge $CPU_PERC90 || $CPU2 -ge $CPU_PERC90 || $CPU3 -ge $CPU_PERC90 || $CPUP -ge $CPU_PERC90 ]]; then
if [[ $F9 == "False" ]]; then
set_fanspeed $MAX $PERC90_MIN || { sleep 60; continue; }
fi
unset_flags
F9="True"
>&2 echo "<5> F9=$F9"
elif [[ $HDD1 -ge $HDD_PERC80 || $HDD2 -ge $HDD_PERC80 || $HDD3 -ge $HDD_PERC80 || $HDD4 -ge $HDD_PERC80 || $CPU0 -ge $CPU_PERC80 || $CPU1 -ge $CPU_PERC80 || $CPU2 -ge $CPU_PERC80 || $CPU3 -ge $CPU_PERC80 || $CPUP -ge $CPU_PERC80 ]]; then
if [[ $F8 == "False" ]]; then
set_fanspeed $MAX $PERC80_MIN || { sleep 60; continue; }
fi
unset_flags
F8="True"
>&2 echo "<5> F8=$F8"
elif [[ $HDD1 -ge $HDD_PERC70 || $HDD2 -ge $HDD_PERC70 || $HDD3 -ge $HDD_PERC70 || $HDD4 -ge $HDD_PERC70 || $CPU0 -ge $CPU_PERC70 || $CPU1 -ge $CPU_PERC70 || $CPU2 -ge $CPU_PERC70 || $CPU3 -ge $CPU_PERC70 || $CPUP -ge $CPU_PERC70 ]]; then
if [[ $F7 == "False" ]]; then
set_fanspeed $MAX $PERC70_MIN || { sleep 60; continue; }
fi
unset_flags
F7="True"
>&2 echo "<5> F7=$F7"
elif [[ $HDD1 -ge $HDD_PERC60 || $HDD2 -ge $HDD_PERC60 || $HDD3 -ge $HDD_PERC60 || $HDD4 -ge $HDD_PERC60 || $CPU0 -ge $CPU_PERC60 || $CPU1 -ge $CPU_PERC60 || $CPU2 -ge $CPU_PERC60 || $CPU3 -ge $CPU_PERC60 || $CPUP -ge $CPU_PERC60 ]]; then
if [[ $F6 == "False" ]]; then
set_fanspeed $MAX $PERC60_MIN || { sleep 60; continue; }
fi
unset_flags
F6="True"
>&2 echo "<5> F6=$F6"
elif [[ $HDD1 -ge $HDD_PERC50 || $HDD2 -ge $HDD_PERC50 || $HDD3 -ge $HDD_PERC50 || $HDD4 -ge $HDD_PERC50 || $CPU0 -ge $CPU_PERC50 || $CPU1 -ge $CPU_PERC50 || $CPU2 -ge $CPU_PERC50 || $CPU3 -ge $CPU_PERC50 || $CPUP -ge $CPU_PERC50 ]]; then
if [[ $F5 == "False" ]]; then
set_fanspeed $MAX $PERC50_MIN || { sleep 60; continue; }
fi
unset_flags
F5="True"
>&2 echo "<5> F5=$F5"
elif [[ $HDD1 -ge $HDD_PERC40 || $HDD2 -ge $HDD_PERC40 || $HDD3 -ge $HDD_PERC40 || $HDD4 -ge $HDD_PERC40 || $CPU0 -ge $CPU_PERC40 || $CPU1 -ge $CPU_PERC40 || $CPU2 -ge $CPU_PERC40 || $CPU3 -ge $CPU_PERC40 || $CPUP -ge $CPU_PERC40 ]]; then
if [[ $F4 == "False" ]]; then
set_fanspeed $MAX $PERC40_MIN || { sleep 60; continue; }
fi
unset_flags
F4="True"
>&2 echo "<5> F4=$F4"
elif [[ $HDD1 -gt $HDD_PERC30 || $HDD2 -gt $HDD_PERC30 || $HDD3 -gt $HDD_PERC30 || $HDD4 -gt $HDD_PERC30 || $CPU0 -gt $CPU_PERC30 || $CPU1 -gt $CPU_PERC30 || $CPU2 -gt $CPU_PERC30 || $CPU3 -gt $CPU_PERC30 || $CPUP -gt $CPU_PERC30 ]]; then
if [[ $F3 == "False" ]]; then
set_fanspeed $MAX $PERC30_MIN || { sleep 60; continue; }
fi
unset_flags
F3="True"
>&2 echo "<5> F3=$F3"
else
if [[ $COLD_TEMP_FLAG == "False" ]]; then
set_fanspeed $COLD_MAX $COLD_MIN || { sleep 60; continue; }
unset_flags
COLD_TEMP_FLAG="True"
>&2 echo "<4> COLD_TEMP_FLAG=$COLD_TEMP_FLAG"
subject="[HP Server] [ALERT] Server is freezing!"
body="TEMPERATURES:\n
SSD: $HDD1
HDD2: $HDD2
HDD3: $HDD3
HDD4: $HDD4
CPU0: $CPU0
CPU1: $CPU1
CPU2: $CPU2
CPU3: $CPU3
CPU Package: $CPUP"
message="Subject: $subject\n\n$body"
send_email "$message"
fi
fi
sleep "$FREQ"
done