Add script 'show-nfs-clients.sh'.
This commit is contained in:
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b27b0aa937
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# -------------------------------------------
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# - Settings for script check-connectivity.sh
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# -------------------------------------------
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# - IPV6_PRESENT
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# -
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# - Possible values: true/false
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# -
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# - Example:
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# - IPV6_PRESENT=false
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# -
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# - Default value: true
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# -
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#IPV6_PRESENT=true
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# - DNS_CHECK_HOSTS
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# -
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# - Blank sepatated list of hostnames checked by lokal nameservice simply
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# - for their ip-addresses
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# -
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# - Defaults to: DNS_CHECK_HOSTS="www.oopen.de www.google.com www.heise.de"
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# -
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#DNS_CHECK_HOSTS="www.oopen.de www.google.com www.heise.de www.debian.org"
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# - HTTPS_CHECK_HOSTS
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# -
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# - Blank sepatated list of websites which will be checked for accessibility
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# -
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# - Defaults to: HTTPS_CHECK_HOSTS="www.oopen.de www.google.com www.heise.de"
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# -
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#HTTPS_CHECK_HOSTS="www.oopen.de www.google.com www.heise.de www.debian.org"
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20
conf/show-nfs-clients.conf.sample
Normal file
20
conf/show-nfs-clients.conf.sample
Normal file
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# -----------------------------------------
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# - Settings for script show-nfs-clients.sh
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# -----------------------------------------
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# NFS_SERVER_IPV4
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#
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# The IP-Address where the nfs clients are connected
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#
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# If not given, script tries to determin th ip-address
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#
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#NFS_SERVER_IPV4=""
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# NFS_SERVER_PORT
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#
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# The Port where the nfs service is listen
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#
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# Default: NFS_SERVER_PORT=2049
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#
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#NFS_SERVER_PORT=2049
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289
show-nfs-clients.sh
Executable file
289
show-nfs-clients.sh
Executable file
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#!/usr/bin/env bash
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script_name="$(basename $(realpath $0))"
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/${script_name%%.*}.conf"
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LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
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log_file="${LOCK_DIR}/${script_name%%.*}.log"
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# ----------
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# Base Function(s)
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# ----------
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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blank_line
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exit $1
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}
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usage() {
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[[ -n "$1" ]] && error "$1"
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[[ $terminal ]] && echo -e "
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\033[1mUsage:\033[m
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$(basename $0)
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\033[1mDescription\033[m
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Script lists all connected NFS client ip-addresses.
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\033[1mOptions\033[m
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No Options present
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\033[1mFiles\033[m
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$conf_file: Configuration file
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\033[1mExample:\033[m
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List connected NFS clients
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$(basename $0)
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"
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clean_up 1
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}
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echononl(){
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if $terminal ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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#echo -e -n " $*\\c" 1>&2
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echo -e -n " $*\\c"
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else
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#echo -e -n " $*" 1>&2
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echo -e -n " $*"
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mFatal\033[m ] $*"
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else
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echo -e " [ Fatal ] $*"
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fi
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echo ""
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if $terminal ; then
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echo -e " \033[1mScript terminated\033[m.."
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else
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echo -e " Script terminated.."
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fi
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echo ""
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rm -rf $LOCK_DIR
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exit 1
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mError\033[m ] $*"
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else
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echo " [ Error ] $*"
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fi
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echo ""
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}
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info (){
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if $terminal ; then
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echo ""
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echo -e " [ \033[32m\033[1mInfo\033[m ] $*"
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echo ""
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fi
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}
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echo_skipped() {
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if $terminal ; then
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echo -e "\033[75G[ \033[37m\033[1mskipped\033[m ]"
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fi
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}
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echo_ok() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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fi
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}
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echo_failed(){
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if $terminal ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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fi
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}
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blank_line() {
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if $terminal ; then
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echo ""
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fi
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}
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trim() {
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local var="$*"
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var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
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var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
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echo -n "$var"
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}
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# ----------
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# - Jobhandling
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# ----------
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# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
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# -
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trap clean_up SIGHUP SIGINT SIGTERM
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# - Create lock directory '$LOCK_DIR"
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#
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mkdir "$LOCK_DIR"
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# ----------
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# - Some checks ..
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# ----------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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else
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terminal=false
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fi
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# - Print help?
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# -
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if [[ "$(trim $*)" = "-h" ]] || [[ "$(trim $*)" = "--help" ]] ; then
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usage
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fi
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# ==========
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# - Begin Main Script
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# ==========
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# ----------
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# - Headline
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# ----------
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if $terminal ; then
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echo ""
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echo -e "\033[1m----------\033[m"
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echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
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echo -e "\033[1m----------\033[m"
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echo ""
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fi
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# Redirect all errors to $log_file
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#
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exec 2> "$log_file"
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echononl "Redirect all errors to '\$log_file'.."
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if [[ $? -eq 0 ]] ; then
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echo_ok
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else
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echo_failed
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fi
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# ----------
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# Read Configurations from $conf_file
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# ----------
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# - Give your default values here
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# -
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DEFAULT_NFS_SERVER_PORT="2049"
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echononl "Load Configurations from file '$(basename "$conf_file")'."
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if [[ -f "$conf_file" ]]; then
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source "$conf_file"
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echo_ok
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else
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echo_skipped
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msg="No configuration file found. Script default values are loaded.."
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if $terminal ; then
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echo ""
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echo -e " [ \033[33m\033[1mWarn\033[m ] $msg"
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echo ""
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fi
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fi
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if [[ -z "$NFS_SERVER_IPV4" ]] ; then
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NFS_SERVER_IPV4="$(ip a | grep "inet " | grep -v "127\.0" | awk '{print$2}' | cut -d '/' -f1)"
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if [[ -z "$NFS_SERVER_IPV4" ]] ; then
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fatal "No NFS Server IP Address present."
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fi
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fi
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[[ -z "$NFS_SERVER_PORT" ]] && NFS_SERVER_PORT="$DEFAULT_NFS_SERVER_PORT"
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# Get NFS client list
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#
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# netstat -an | grep 192.168.112.10:2049 \
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# | awk '{print" "$5}' \
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# | cut -d ':' -f1 \
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# | sort
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#
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echononl "Get NFS client list.."
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netstat -an \
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| grep ${NFS_SERVER_IPV4}:$NFS_SERVER_PORT \
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| awk '{print" "$5}' \
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| cut -d ':' -f1 \
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| sort >> ${LOCK_DIR}/nfs-clients.list
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if [[ -s "$log_file" ]]; then
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echo_failed
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error "$(cat "$log_file")"
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> "$log_file"
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else
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echo_ok
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fi
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# Create array of connected clients:
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#
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echononl "Create array of connected clients.."
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declare -a NFS_CLIENT_ARR=()
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while read _nfs_client ; do
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NFS_CLIENT_ARR+=("$(trim "$_nfs_client")")
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done < "${LOCK_DIR}/nfs-clients.list"
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if [[ -s "$log_file" ]]; then
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echo_failed
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error "$(cat "$log_file")"
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> "$log_file"
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else
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echo_ok
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fi
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if $terminal ; then
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echo ""
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echo ""
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echo " ----------------------"
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echo -e " \033[37m\033[1mConnected NFS Clients:\033[m"
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echo " ----------------------"
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echo ""
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fi
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if [[ ${#NFS_CLIENT_ARR[@]} -gt 0 ]]; then
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for _nfs_client in "${NFS_CLIENT_ARR[@]}" ; do
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echo -e " \033[33m$_nfs_client\033[m"
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done
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info "Number of connected clients: \033[1m${#NFS_CLIENT_ARR[@]}\033[m"
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else
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info "No NFS Client connected."
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fi
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clean_up 0
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