4 # real-time performance and health monitoring, done right!
5 # (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
8 # This plugin requires a latest version of fping.
9 # You can compile it from source, by running me with option: install
11 export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
14 if [ "${1}" = "install" ]
16 [ "${UID}" != 0 ] && echo >&2 "Please run me as root. This will install a single binary file: /usr/local/bin/fping." && exit 1
20 printf >&2 "%q " "${@}"
25 [ ! -d /usr/src ] && run mkdir -p /usr/src
26 [ ! -d /usr/local/bin ] && run mkdir -p /usr/local/bin
35 run git clone https://github.com/schweikert/fping.git fping.git
40 run ./configure --prefix=/usr/local
43 if [ -f /usr/local/bin/fping ]
45 run mv -f /usr/local/bin/fping /usr/local/bin/fping.old
47 run mv src/fping /usr/local/bin/fping
48 run chown root:root /usr/local/bin/fping
49 run chmod 4755 /usr/local/bin/fping
51 echo >&2 "All done, you have a compatible fping now at /usr/local/bin/fping."
53 echo >&2 "If you have another fping installed, please set:"
54 echo >&2 " fping=\"/usr/local/bin/fping\""
55 echo >&2 "at /etc/netdata/fping.conf"
59 # -----------------------------------------------------------------------------
61 PROGRAM_NAME="$(basename "${0}")"
64 date "+%Y-%m-%d %H:%M:%S"
71 echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
95 [ $debug -eq 1 ] && log DEBUG "${@}"
98 # -----------------------------------------------------------------------------
100 # the frequency to send info to netdata
101 # passed by netdata as the first parameter
102 update_every="${1-1}"
104 # the netdata configuration directory
105 # passed by netdata as an environment variable
106 NETDATA_CONFIG_DIR="${NETDATA_CONFIG_DIR-/etc/netdata}"
108 # -----------------------------------------------------------------------------
109 # configuration options
110 # can be overwritten at /etc/netdata/fping.conf
112 # the fping binary to use
113 # we need one that can output netdata friendly info (supporting: -N)
114 # if you have multiple versions, put here the full filename of the right one
115 fping="$( which fping 2>/dev/null || command -v fping 2>/dev/null )"
117 # a space separated list of hosts to fping
118 # we suggest to put names here and the IPs of these names in /etc/hosts
121 # the time in milliseconds (1 sec = 1000 ms)
122 # to ping the hosts - by default 5 pings per host per iteration
123 ping_every="$((update_every * 1000 / 5))"
126 fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
128 # -----------------------------------------------------------------------------
129 # load the configuration file
131 if [ ! -f "${NETDATA_CONFIG_DIR}/fping.conf" ]
133 fatal "configuration file '${NETDATA_CONFIG_DIR}/fping.conf' not found - nothing to do."
136 source "${NETDATA_CONFIG_DIR}/fping.conf"
140 fatal "no hosts configued in '${NETDATA_CONFIG_DIR}/fping.conf' - nothing to do."
143 if [ -z "${fping}" -o ! -x "${fping}" ]
145 fatal "command '${fping}' is not executable - cannot proceed."
148 if [ ${ping_every} -lt 20 ]
150 warning "ping every was set to ${ping_every} but 20 is the minimum for non-root users. Setting it to 20 ms."
154 # the fping options we will use
155 options=( -N -l -Q ${update_every} -p ${ping_every} ${other_opts} ${hosts} )
158 exec "${fping}" "${options[@]}"
160 # if we cannot execute fping, stop
161 fatal "command '${fping} ${options[@]}' failed to be executed."