Jérémy Dubois
0cb751591a
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gitea/ansible-roles/pipeline/head This commit looks good
191 lines
7.8 KiB
Bash
Executable file
191 lines
7.8 KiB
Bash
Executable file
#!/bin/bash
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# shellcheck disable=SC2207,SC2009,SC2076
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usage() {
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cat << EOL
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Usage :
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$0 --master X,Y --backup Z
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-m|--master ID_MASTER # VRRP ID that should be master, separated by a comma ","
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-b|--backup ID_BACKUP # VRRP ID that should be backup, separated by a comma ","
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[--vrrpd] # Check for vrrpd daemon (default)
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[--uvrrpd] # Check for uvrrpd daemon
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EOL
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}
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unset ID_master
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unset ID_backup
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vrrpd_option="unset"
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uvrrpd_option="unset"
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unset critical_output
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critical_state="unset"
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unset warning_output
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warning_state="unset"
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unset ok_output
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ok_state="unset"
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exit_code=0
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used_daemon="vrrpd"
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IFS="
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"
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# If no argument then show usage
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if [ "$#" -eq 0 ]; then
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usage
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exit 2
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fi
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while :; do
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case $1 in
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-h|-\?|--help) # Call a "usage" function to display a synopsis, then exit.
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usage
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exit
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;;
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-m|--master) # Takes an option argument, ensuring it has been specified.
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if [ -n "$2" ]; then
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ID_master=($(echo "$2" | tr "," "\n")) # Make an array with values separated by ","
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shift
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else
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printf 'ERROR: "--master" requires a non-empty option argument.\n' >&2
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exit 2
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fi
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;;
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-b|--backup) # Takes an option argument, ensuring it has been specified.
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if [ -n "$2" ]; then
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ID_backup=($(echo "$2" | tr "," "\n")) # Make an array with values separated by ","
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shift
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else
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printf 'ERROR: "--backup" requires a non-empty option argument.\n' >&2
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exit 2
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fi
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;;
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--vrrpd)
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used_daemon="vrrpd"
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vrrpd_option="set"
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;;
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--uvrrpd)
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used_daemon="uvrrpd"
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uvrrpd_option="set"
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;;
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-?*)
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printf 'WARNING: Unknown option (ignored): %s\n' "$1" >&2
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;;
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*) # Default case: If no more options then break out of the loop.
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break
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esac
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shift
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done
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# Make sure that each given ID is given once only
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all_ID=("${ID_master[@]}" "${ID_backup[@]}")
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uniqueNum=$(printf '%s\n' "${all_ID[@]}"|awk '!($0 in seen){seen[$0];c++} END {print c}')
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if [ "$uniqueNum" != ${#all_ID[@]} ]; then
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echo "ERROR : At least one VRRP ID is given multiple times"
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exit 2
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fi
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# Make sure --vrrpd and --uvrrpd are not both set
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if [ $vrrpd_option = "set" ] && [ $uvrrpd_option = "set" ]; then
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echo "ERROR : You cannot set both parameters --vrrpd and --uvrrpd"
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exit 2
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fi
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# Make sure no sysclt parameter "rp_filter" is set to 1
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if grep -q 1 /proc/sys/net/ipv4/conf/*/rp_filter; then
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critical_output="${critical_output}CRITICAL - rp_filter is set to 1 at least for one interface\n"
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critical_state="set"
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fi
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vrrpd_processes_number=$((${#ID_master[@]}+${#ID_backup[@]})) # Number of vrrpd processes that should be running = length of arrays ID_master + ID_backup
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regex_ipv4="((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])"
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regex_ipv6="(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))"
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vrrpd_processes=$(ps auwx | grep "$used_daemon" | grep -v -e grep -e check)
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ID_running_vrrpd=($(for i in ${vrrpd_processes}; do echo "$i" | grep -Eo -- "-v [0-9]+" | awk '{print $2}'; done))
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# Check the number of running vrrpd processes in comparison to the number of ID given
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if ! sudo /usr/lib/nagios/plugins/check_procs -C "$used_daemon" -c $vrrpd_processes_number:$vrrpd_processes_number >/dev/null; then
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critical_output="${critical_output}CRITICAL : $vrrpd_processes_number VRRP ID are given but $(ps auwx | grep "$used_daemon" | grep -v -e grep -e check -c) $used_daemon processes are running\n"
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if pgrep uvrrp >/dev/null && [ $uvrrpd_option = "unset" ]; then
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critical_output="${critical_output}It seems that uvrrpd is running. Use parameter --uvrrpd\n"
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fi
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critical_state="set"
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fi
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IFS=" "
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# For each ID_master, make sure a process exist
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if [ ${#ID_master[@]} -ne 0 ]; then
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for i in "${ID_master[@]}"; do
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# If array contains the current ID, then a process exist, and we have to make sure the corresponding interface exists
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if [[ " ${ID_running_vrrpd[*]} " =~ " $i " ]]; then
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vrrpd_current_proccess=$(echo "$vrrpd_processes" | grep -E -- "-v $i")
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INT_current_vrrpd=$(echo "$vrrpd_current_proccess" | grep -Eo -- "-i \S+" | awk '{print $2}')
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IP_current_vrrpd=$(echo "$vrrpd_current_proccess" | grep -Eo "${regex_ipv4}|${regex_ipv6}")
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if [ "$used_daemon" = "vrrpd" ]; then
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int_name="vrrp_${i}_${INT_current_vrrpd}"
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elif [ "$used_daemon" = "uvrrpd" ]; then
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int_name="${INT_current_vrrpd}_${i}"
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fi
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if /sbin/ifconfig "$int_name" 2> /dev/null | grep -q "$IP_current_vrrpd"; then
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ok_output="${ok_output}OK - ID $i has a process and $IP_current_vrrpd is master\n"
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ok_state="set"
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else
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warning_output="${warning_output}WARNING - The IP $IP_current_vrrpd for ID $i is backup while it should be master\n"
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warning_state="set"
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fi
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else
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critical_output="${critical_output}CRITICAL - No process is running for VRRP ID $i\n"
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critical_state="set"
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fi
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done
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fi
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# For each ID_backup, make sure a process exist
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if [ ${#ID_backup[@]} -ne 0 ]; then
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for i in "${ID_backup[@]}"; do
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# If array contains the current ID, then a process exist, and we have to make sure the corresponding interface does not exist
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if [[ " ${ID_running_vrrpd[*]} " =~ " $i " ]]; then
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vrrpd_current_proccess=$(echo "$vrrpd_processes" | grep -E -- "-v $i")
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INT_current_vrrpd=$(echo "$vrrpd_current_proccess" | grep -Eo -- "-i \S+" | awk '{print $2}')
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IP_current_vrrpd=$(echo "$vrrpd_current_proccess" | grep -Eo "${regex_ipv4}|${regex_ipv6}")
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if [ "$used_daemon" = "vrrpd" ]; then
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int_name="vrrp_${i}_${INT_current_vrrpd}"
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elif [ "$used_daemon" = "uvrrpd" ]; then
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int_name="${INT_current_vrrpd}_${i}"
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fi
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if ! /sbin/ifconfig "$int_name" 2> /dev/null | grep -q "$IP_current_vrrpd"; then
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ok_output="${ok_output}OK - ID $i has a process and $IP_current_vrrpd is backup\n"
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ok_state="set"
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else
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warning_output="${warning_output}WARNING - The IP $IP_current_vrrpd for ID $i is master while it should be backup\n"
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warning_state="set"
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fi
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else
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critical_output="${critical_output}CRITICAL - No process is running for VRRP ID $i\n"
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critical_state="set"
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fi
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done
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fi
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# Make $exit_code the highest set
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if [ "$critical_state" = "set" ]; then
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exit_code=2
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elif [ "$warning_state" = "set" ]; then
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exit_code=1
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elif [ "$ok_state" = "set" ]; then
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exit_code=0
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fi
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# Echo most critical output first, least last
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if [ -n "$critical_output" ]; then
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echo -e "$critical_output" | grep -v "^$"
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fi
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if [ -n "$warning_output" ]; then
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echo -e "$warning_output" | grep -v "^$"
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fi
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if [ -n "$ok_output" ]; then
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echo -e "$ok_output" | grep -v "^$"
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fi
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exit $exit_code
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