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Repaired docs, added cron
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Lukas Macura
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README.md
15
README.md
@ -19,25 +19,24 @@ So zaf is here for you :)
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* Sharing code. Many zabbix external checks share common shell functions.
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* Simplification of userparameter functions (does not have to be one-line long code)
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* Zabbix discovery simplification. Creating zabbix item for discovery is not so easy in shell based system and result is not nice. But you can use framework function to do so.
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* OS packaging support (in future).
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* Zabbix agent autoinstallation and autoconfiguration suitable to use in puppet or another tool
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* OS packaging support
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## Installing Zaf
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You need to be root and you must have curl installed on your system. Depending on your system, github certificates may not be available so you have to use *-k* option for curl (insecure). Default installation type is silent. So there will be no questions and everything will be autodetected. This simple command should be used on most systems:
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```
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curl -k https://raw.githubusercontent.com/limosek/zaf/1.0/install.sh | sh
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curl -k https://raw.githubusercontent.com/limosek/zaf/master/install.sh | sh
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```
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### Install options and autoconfiguration
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General parameters for install.sh on any system (simplest way how to install)
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```
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curl -k https://raw.githubusercontent.com/limosek/zaf/1.0/install.sh | \
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curl -k https://raw.githubusercontent.com/limosek/zaf/master/install.sh | \
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sh -s {auto|interactive|debug-auto|debug-interactive} [Agent-Options] [Zaf-Options]
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```
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or use git version:
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```
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git clone https://github.com/limosek/zaf.git; cd zaf; git checkout 1.0
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git clone https://github.com/limosek/zaf.git; cd zaf; git checkout master
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./install.sh {auto|interactive|debug-auto|debug-interactive} [Agent-Options] [Zaf-Options]
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Agent-Options: Z_Option=value [...]
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Zaf-Options: ZAF_OPT=value [...]
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@ -68,7 +67,7 @@ Now everything was tested on Debian and OpenWrt. If somebody is interrested in,
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Suppose you want to autoinstall agent on clean system. You need only curl installed. Everything else is one-cmd process.
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This command will install zaf, install zabbix-agent if necessary and sets zabbix variables on agent to reach server. This command can be automatized by puppet or another deploying system.
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```
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curl -k https://raw.githubusercontent.com/limosek/zaf/1.0/install.sh | sh -s auto \
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curl -k https://raw.githubusercontent.com/limosek/zaf/master/install.sh | sh -s auto \
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Z_Server=zabbix.server.local \
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Z_ServerActive=zabbix.server.local \
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Z_HostnameItem=system.hostname Z_RefreshActiveChecks=60 \
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@ -80,10 +79,10 @@ You can make your own deb package with preconfigured option. It is up to you to
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```
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git clone https://github.com/limosek/zaf.git \
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&& cd zaf \
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&& git checkout 1.0 \
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&& git checkout master \
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&& git clone https://github.com/limosek/zaf-plugins.git \
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&& make deb PLUGINS="./zaf-plugins/fsx" IPLUGINS="zaf" ZAF_OPTIONS="ZAF_GIT=0" AGENT_OPTIONS="Z_Server=zabbix.server Z_ServerActive=zabbix.server Z_StartAgents=8"
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sudo dpkg -i out/zaf-1.0.deb
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sudo dpkg -i out/zaf-1.1master.deb
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```
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General usage:
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```
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@ -125,7 +124,7 @@ During plugin installation, zaf will check all dependencies, do install binaries
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Zaf binary can be installed on any system from openwrt to big system. It has minimal dependencies and is shell based. Is has minimal size (up to 50kb of code). It can be used for installing, removing and testing zaf plugin items. Zaf should be run as root.
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```
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zaf
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zaf Version 1.0. Please use some of this commands:
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zaf Version 1.1master. Please use some of this commands:
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zaf update To update repo
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zaf plugins To list installed plugins
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zaf show [plugin] To show installed plugins or plugin info
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@ -11,7 +11,7 @@ zaf_cache_clean(){
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}
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# Get cache key from requested param
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zaf_cachekey(){
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zaf_cache_key(){
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echo "$1" | md5sum - | cut -d ' ' -f 1
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}
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@ -23,7 +23,7 @@ zaf_tocache(){
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local key
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local value
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local lifetime
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key=$(zaf_cachekey "$1")
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key=$(zaf_cache_key "$1")
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echo "$2" >$ZAF_CACHE_DIR/$key
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echo "$1" >$ZAF_CACHE_DIR/$key.key
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touch -m -d "$3 seconds" $ZAF_CACHE_DIR/$key.tme
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@ -36,13 +36,25 @@ zaf_tocache(){
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zaf_tocache_stdin(){
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local key
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local lifetime
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key=$(zaf_cachekey "$1")
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key=$(zaf_cache_key "$1")
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cat >$ZAF_CACHE_DIR/$key
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if [ -s $ZAF_CACHE_DIR/$key ]; then
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zaf_trc "Cache: Saving entry $1($key)"
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echo "$1" >$ZAF_CACHE_DIR/$key.key
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touch -m -d "$3 seconds" $ZAF_CACHE_DIR/$key.tme
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zaf_trc "Cache: Saving entry $1($key)"
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cat $ZAF_CACHE_DIR/$key
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else
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rm $ZAF_CACHE_DIR/$key
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fi
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}
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# Remove entry from cache
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# $1 key
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zaf_cache_delentry(){
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local key
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key=$(zaf_cache_key "$1")
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zaf_trc "Cache: removing $1($key) from cache"
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rm -f "$ZAF_CACHE_DIR/$key*"
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}
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# Get object from cache
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@ -50,7 +62,7 @@ zaf_tocache_stdin(){
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zaf_fromcache(){
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local key
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local value
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key=$(zaf_cachekey "$1")
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key=$(zaf_cache_key "$1")
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if [ -f $ZAF_CACHE_DIR/$key ]; then
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if [ "$ZAF_CACHE_DIR/$key.tme" -nt "$ZAF_CACHE_DIR/$key" ]; then
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zaf_trc "Cache: serving $1($key) from cache"
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@ -89,6 +89,9 @@ zaf_ctrl_check_deps() {
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zaf_ctrl_sudo() {
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local pdir
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local plugin
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local sudo
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local cmd
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local parms
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if ! which sudo >/dev/null; then
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zaf_wrn "Sudo needed bud not installed?"
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@ -96,9 +99,14 @@ zaf_ctrl_sudo() {
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pdir="$3"
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plugin=$1
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zaf_dbg "Installing sudoers entry $ZAF_SUDOERSD/zaf_$plugin"
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(echo -n "zabbix ALL=NOPASSWD:SETENV: "
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zaf_ctrl_get_global_option $2 "Sudo" | zaf_far '{PLUGINDIR}' "${plugindir}";
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echo ) >$ZAF_SUDOERSD/zaf_$plugin
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sudo=$(zaf_ctrl_get_global_option $2 "Sudo" | zaf_far '{PLUGINDIR}' "${plugindir}")
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cmd=$(echo $sudo | cut -d ' ' -f 1)
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parms=$(echo $sudo | cut -d ' ' -f 2-)
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if which $cmd >/dev/null ; then
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(echo "zabbix ALL=NOPASSWD:SETENV: $(which $cmd) $(echo $parms | tr '%' '*')";echo) >$ZAF_SUDOERSD/zaf_$plugin
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else
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zaf_wrn "Cannot find binary $cmd for sudo. Ignoring sudo."
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fi
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}
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# Install crontab config from control
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@ -273,6 +273,7 @@ zaf_install_plugin() {
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zaf_ctrl_check_deps "${control}"
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zaf_ctrl_install "$url" "${control}" "${plugindir}"
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zaf_ctrl_sudo "$plugin" "${control}" "${plugindir}"
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zaf_ctrl_cron "$plugin" "${control}" "${plugindir}"
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zaf_ctrl_generate_cfg "${control}" "${plugin}" \
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| zaf_far '{PLUGINDIR}' "${plugindir}" >${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf
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zaf_dbg "Generated ${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf"
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@ -388,10 +389,10 @@ zaf_precache_item() {
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}
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zaf_remove_plugin() {
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! [ -d ${ZAF_PLUGINS_DIR}/$1 ] && { zaf_err "Plugin $1 not installed!"; }
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! zaf_is_plugin $1 && { zaf_err "Plugin $1 not installed!"; }
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zaf_wrn "Removing plugin $1"
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rm -rf ${ZAF_PLUGINS_DIR}/$1
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rm -f ${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf
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rm -f ${ZAF_AGENT_CONFIGD}/zaf_$1.conf ${ZAF_CROND}/zaf_$1 ${ZAF_SUDOERSD}/zaf_$1
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}
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zaf_tolower() {
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