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limosek-zaf
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New syntax and tests

1.2
Lukas Macura 2016-04-21 15:29:48 +02:00
parent 76ba5b9ad9
commit 957c53958c
9 changed files with 198 additions and 74 deletions
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40
install.sh
View File

@ -1,6 +1,7 @@
#!/bin/sh
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
export ZAF_LOG_STDERR="-s"
if [ -z "$ZAF_URL" ]; then
# Runing as standalone install.sh. We have to download rest of files first.
ZAF_URL="https://github.com/limosek/zaf/"
@ -8,20 +9,28 @@ fi
[ -z "$ZAF_GITBRANCH" ] && ZAF_GITBRANCH=1.2
ZAF_TMP_DIR="/tmp/zaf-installer"
ZAF_DIR="$ZAF_TMP_DIR/zaf"
# Lite version of zaf_fetch_url, full version will be loaded later
zaf_fetch_url(){
if [ -z "$ZAF_OFFLINE" ]; then
echo curl -f -k -s -L -o - "$1" >&2; curl -f -k -s -L -o - "$1"
else
echo "Offline mode wants to download $1. Exiting." >&2
exit 2
fi
echo curl -f -k -s -L -o - "$1" >&2;
curl -f -k -s -L -o - "$1"
}
# Download tgz and extract to /tmp/zaf-installer
# Lite version of zaf_err, full version will be loaded later
zaf_err() {
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error -- $@
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error "Exiting with error!"
exit 1
}
# Download tgz and extract to tmpdir
zaf_download_files() {
rm -rf /tmp/zaf-installer
zaf_fetch_url $ZAF_URL/archive/$ZAF_GITBRANCH.tar.gz | tar -f - -C /tmp -zx && mv /tmp/zaf-$ZAF_GITBRANCH /tmp/zaf-installer
[ -n $ZAF_DIR ] && zaf_err "ZAF_DIR not set!"
rm -rf $ZAF_DIR
zaf_fetch_url $ZAF_URL/archive/$ZAF_GITBRANCH.tar.gz | tar -f - -C $ZAF_TMP_DIR -zx && mv $ZAF_TMP_DIR/zaf-$ZAF_GITBRANCH $ZAF_DIR \
|| zaf_err "Cannot download and unpack zaf!"
}
if ! [ -f README.md ]; then
@ -32,7 +41,7 @@ if ! [ -f README.md ]; then
fi
echo "Installing from url $url..."
[ -z "$*" ] && auto=auto
zaf_download_files && cd /tmp/zaf-installer && exec ./install.sh $auto "$@"
zaf_download_files && cd $ZAF_DIR && exec ./install.sh $auto "$@"
echo "Error downloading and runing installer!" >&2
exit 2
fi
@ -276,7 +285,7 @@ zaf_configure(){
}
zaf_install_all() {
rm -rif ${ZAF_TMP_DIR}
rm -rf ${ZAF_TMP_DIR}
mkdir -p ${ZAF_TMP_DIR}
zaf_install_dir ${ZAF_LIB_DIR}
for i in lib/zaf.lib.sh lib/plugin.lib.sh lib/os.lib.sh lib/ctrl.lib.sh lib/cache.lib.sh lib/zbxapi.lib.sh lib/JSON.sh README.md; do
@ -317,14 +326,15 @@ zaf_postconfigure() {
if [ -f "${ZAF_CFG_FILE}" ]; then
. "${ZAF_CFG_FILE}"
fi
ZAF_TMP_DIR="/tmp/zaf-installer-tmp/"
ZAF_TMP_DIR="/tmp/zaf-installer/"
! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"
# If debug is on, do not remove tmp dir
if [ "$ZAF_DEBUG" -le 3 ]; then
trap "rm -rif ${ZAF_TMP_DIR}" EXIT
trap "rm -rif /tmp/zaf-installer" EXIT
trap "rm -rf ${ZAF_TMP_DIR} " EXIT
else
trap 'zaf_wrn "Leaving $ZAF_TMP_DIR" contents due to ZAF_DEBUG.' EXIT
fi
! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"
case $1 in
interactive)

3
lib/cache.lib.sh
View File

@ -9,7 +9,7 @@ zaf_cache_clean(){
fi
mkdir -p "$ZAF_CACHE_DIR"
if zaf_is_root; then
chmod g+rwx "$ZAF_CACHE_DIR"
chmod 770 "$ZAF_CACHE_DIR"
chgrp zabbix "$ZAF_CACHE_DIR"
fi
}
@ -86,6 +86,7 @@ zaf_fromcache(){
local value
key=$(zaf_cache_key "$1")
if [ -f $ZAF_CACHE_DIR/$key ]; then
! [ -f "$ZAF_CACHE_DIR/$key.info" ] && { return 3; }
if [ "$ZAF_CACHE_DIR/$key.info" -nt "$ZAF_CACHE_DIR/$key" ]; then
zaf_trc "Cache: serving $1($key) from cache"
cat $ZAF_CACHE_DIR/$key

28
lib/ctrl.lib.sh
View File

@ -191,20 +191,28 @@ zaf_ctrl_generate_cfg() {
local ikey
local lock
local cache
local tmpfile
local pname
local pdefault
local pregex
local prest
local zafparms
items=$(zaf_ctrl_get_items <"$1")
tmpfile=$ZAF_TMP_DIR/gencfg$$
(set -e
for i in $items; do
iscript=$(zaf_stripctrl $i)
params=$(zaf_ctrl_get_item_option $1 $i "Parameters")
if [ -n "$params" ]; then
zaf_ctrl_get_item_option $1 $i "Parameters" >$tmpfile
if [ -s "$tmpfile" ]; then
ikey="$2.$i[*]"
args=""
apos=1;
for p in $params; do
while read pname pdefault pregex prest; do
zafparams="$zafparams value=\"\$$apos\"; zaf_agentparm $pname $pdefault $pregex;"
args="$args \$$apos"
apos=$(expr $apos + 1)
done
done <$tmpfile
else
ikey="$2.$i"
fi
@ -223,16 +231,18 @@ zaf_ctrl_generate_cfg() {
preload=""
fi
if [ -n "$cmd" ]; then
printf "%s" "UserParameter=$ikey,${preload}${cache}${lock}${cmd}"; echo
printf "%s" "UserParameter=$ikey,export ITEM_KEY='$ikey'; ${preload}${cache}${lock}${cmd}"; echo
continue
fi
cmd=$(zaf_ctrl_get_item_option $1 $i "Script")
if [ -n "$cmd" ]; then
zaf_ctrl_get_item_option $1 $i "Script" | \
zaf_far '{INCLUDES}' ". $ZAF_LIB_DIR/preload.sh; " \
>${ZAF_TMP_DIR}/${iscript}.sh;
( echo "#!/bin/sh"
echo ". $ZAF_LIB_DIR/preload.sh; "
echo "$zafparams"
zaf_ctrl_get_item_option $1 $i "Script"
) >${ZAF_TMP_DIR}/${iscript}.sh;
[ -z "$3" ] && zaf_install_bin ${ZAF_TMP_DIR}/${iscript}.sh ${ZAF_PLUGINS_DIR}/$2/
printf "%s" "UserParameter=$ikey,${preload}${cache}${lock}${ZAF_PLUGINS_DIR}/$2/${iscript}.sh $args"; echo
printf "%s" "UserParameter=$ikey,export ITEM_KEY='$ikey'; ${preload}${cache}${lock}${ZAF_PLUGINS_DIR}/$2/${iscript}.sh $args"; echo
continue;
fi
zaf_err "Item $i declared in control file but has no Cmd, Function or Script!"

27
lib/plugin.lib.sh
View File

@ -218,6 +218,30 @@ zaf_list_plugin_items() {
echo
}
zaf_item_info() {
local plugin
local item
plugin=$(echo $1 | cut -d '.' -f 1)
item=$(echo $1 | cut -d '.' -f 2-)
if zaf_is_plugin $plugin; then
if zaf_ctrl_get_items <$ZAF_PLUGINS_DIR/$plugin/control.zaf | grep -wq "$item"; then
echo "Item $1:"
echo -n "Cache: "; zaf_ctrl_get_item_option $ZAF_PLUGINS_DIR/$plugin/control.zaf "$item" "Cache"; echo
echo "Parameters:"
zaf_ctrl_get_item_option $ZAF_PLUGINS_DIR/$plugin/control.zaf "$item" "Parameters" ; echo
echo "Testparameters:"
zaf_ctrl_get_item_option $ZAF_PLUGINS_DIR/$plugin/control.zaf "$item" "Testparameters" ; echo
echo "Precache:"
zaf_ctrl_get_item_option $ZAF_PLUGINS_DIR/$plugin/control.zaf "$item" "Precache" ; echo
else
zaf_err "No such item $item."
fi
else
zaf_err "No such plugin $plugin."
fi
}
zaf_list_items() {
for p in $(zaf_list_plugins); do
echo $p: $(zaf_list_plugin_items $p)
@ -226,7 +250,7 @@ zaf_list_items() {
zaf_get_item() {
if which zabbix_get >/dev/null; then
zaf_dbg zabbix_get -s localhost -k "'$1'"
zaf_trc zabbix_get -s localhost -k "'$1'"
(zabbix_get -s localhost -k "$1" | tr '\n' ' '; echo) || zaf_wrn "Cannot reach agent on localhost. Please localhost to Server list."
return 11
else
@ -236,6 +260,7 @@ zaf_get_item() {
}
zaf_test_item() {
zaf_trc $ZAF_AGENT_BIN -t "'$1'"
if $ZAF_AGENT_BIN -t "$1" | grep ZBX_NOTSUPPORTED; then
return 1
else

41
lib/preload.sh
View File

@ -2,27 +2,46 @@
. /etc/zaf.conf
[ -z "$ZAF_TMP_BASE" ] && ZAF_TMP_BASE=/tmp/zaf
ZAF_TMP_DIR="${ZAF_TMP_BASE}-${USER}"
[ -z "$ZAF_CACHE_DIR" ] && ZAF_CACHE_DIR=${ZAF_TMP_BASE}c
trap "rm -rif ${ZAF_TMP_DIR}" EXIT
! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"
! [ -d "${ZAF_CACHE_DIR}" ] && mkdir "${ZAF_CACHE_DIR}"
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
. ${ZAF_LIB_DIR}/zaf.lib.sh
. ${ZAF_LIB_DIR}/plugin.lib.sh
. ${ZAF_LIB_DIR}/ctrl.lib.sh
. ${ZAF_LIB_DIR}/os.lib.sh
. ${ZAF_LIB_DIR}/zbxapi.lib.sh
. ${ZAF_LIB_DIR}/cache.lib.sh
[ -z "$ZAF_TMP_BASE" ] && ZAF_TMP_BASE=/tmp/zaf
[ -z "$ZAF_TMP_DIR" ] && ZAF_TMP_DIR="${ZAF_TMP_BASE}-$(zaf_random)"
[ -z "$ZAF_CACHE_DIR" ] && ZAF_CACHE_DIR=${ZAF_TMP_BASE}c
rm -rf "${ZAF_TMP_DIR}"
if ! [ -d "${ZAF_TMP_DIR}" ]; then
mkdir "${ZAF_TMP_DIR}"
fi
! [ -d "${ZAF_CACHE_DIR}" ] && mkdir "${ZAF_CACHE_DIR}"
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
if [ "$ZAF_DEBUG" -le 3 ]; then
trap "rm -rf ${ZAF_TMP_DIR}" EXIT
else
trap 'zaf_wrn "Leaving $ZAF_TMP_DIR" contents due to ZAF_DEBUG.' EXIT
fi
#trap 'touch /tmp/aaaa' ALARM
export ZAF_LIB_DIR
export ZAF_TMP_DIR
export ZAF_CACHE_DIR
export ZAF_PLUGINS_DIR
export ZAF_DEBUG
unset ZAF_LOG_STDERR
export PATH=$ZAF_LIB_DIR:$ZAF_BIN_DIR:$PATH
[ "$(basename $0)" = "preload.sh" ] && [ -n "$*" ] && $@
if [ "$(basename $0)" = "preload.sh" ] && [ -n "$*" ]; then
tmpf=$(zaf_tmpfile preload)
$@ 2>$tmpf
[ -s $tmpf ] && zaf_wrn <$tmpf
fi

46
lib/zaf.lib.sh
View File

@ -11,17 +11,17 @@ zaf_msg() {
echo $@
}
zaf_trc() {
[ "$ZAF_DEBUG" -ge "3" ] && logger -p user.info -s -t zaf-trace -- $@
[ "$ZAF_DEBUG" -ge "3" ] && logger -p user.info ${ZAF_LOG_STDERR} -t zaf-trace -- $@
}
zaf_dbg() {
[ "$ZAF_DEBUG" -ge "2" ] && logger -p user.debug -s -t zaf-debug -- $@
[ "$ZAF_DEBUG" -ge "2" ] && logger -p user.debug ${ZAF_LOG_STDERR} -t zaf-debug -- $@
}
zaf_wrn() {
[ "$ZAF_DEBUG" -ge "1" ] && logger -p user.warn -s -t zaf-warning -- $@
[ "$ZAF_DEBUG" -ge "1" ] && logger -p user.warn ${ZAF_LOG_STDERR} -t zaf-warning -- $@
}
zaf_err() {
logger -s -p user.err -t zaf-error -- $@
logger -s -p user.err -t zaf-error "Exiting with error!"
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error -- $@
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error "Exiting with error!"
exit 1
}
# Help option
@ -43,6 +43,31 @@ zaf_version(){
echo $ZAF_VERSION
}
# Add parameter for agent check
# $1 parameter name (will be set to var)
# $2 if nonempty, it is default value. If empty, parameter is mandatory
# $3 if nonempty, regexp to test
zaf_agentparm(){
local name
local default
local regexp
name="$1"
default="$2"
regexp="$3"
[ -z "$value" ] && [ -z "$default" ] && zaf_err "$ITEM_KEY: Missing mandatory parameter $name."
if [ -z "$value" ]; then
value="$default"
else
if [ -n "$regexp" ]; then
echo "$value" | grep -qE "$regexp" || zaf_err "$ITEM_KEY: Bad parameter '$name' value '$value' (not in regexp '$regexp')."
fi
fi
eval $name=$value
zaf_trc "$ITEM_KEY: Param $name set to $value"
}
# Fetch url to stdout
# $1 url
# It supports real file, file:// and other schemes known by curl
@ -211,3 +236,14 @@ zaf_date_add() {
date -d "$1 seconds" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || date -d "$(expr $(date +%s) + $1)" -D %s "+%Y-%m-%d %H:%M:%S"
}
# Create temp file and return its name
# $1 prefix or empty
zaf_tmpfile() {
echo "$ZAF_TMP_DIR/tmp$1"
}
# return random number
zaf_random() {
hexdump -n 2 -e '/2 "%u"' /dev/urandom
}

23
lib/zafcache
View File

@ -10,8 +10,25 @@ seconds=$1
shift
[ -z "$*" ] && help
parms=$(echo $*|tr -d ' ')
if ! zaf_fromcache "$parms"; then
$@ | zaf_tocache_stdin "$parms" "$seconds"
zaf_trc "zafcache($seconds): $ITEM_KEY,'$2' '$3' '$4' '$5' '$6' '$7' '$8' '$9'"
if [ -z "$ITEM_KEY" ]; then
key=$(echo $*|tr ' ' '_')
else
key="$(echo ${ITEM_KEY}|cut -d '[' -f 1)[$(shift; echo $*|tr ' ' ',')]"
fi
if ! zaf_fromcache "$key"; then
zaf_fromcache "$key" >/dev/null 2>/dev/null
[ $? -eq 3 ] && { zaf_err "Operation $key already in progress."; }
if which at >/dev/null 2>/dev/null; then
at -M now >/dev/null 2>/dev/null <<EOF
. $(dirname $0)/preload.sh; tmpf=\$(zaf_tmpfile cache); $@ 2>"\$tmpf" | zaf_tocache_stdin "$key" "$seconds" ; [ -s \$tmpf ] && zaf_wrn <\$tmpf
EOF
else
tmpf=$(zaf_tmpfile cache)
$@ 2>"$tmpf" | zaf_tocache_stdin "$key" "$seconds"
[ -s $tmpf ] && zaf_wrn <$tmpf
fi
fi

7
lib/zaflock
View File

@ -13,7 +13,7 @@ shift
[ -z "${ZAF_LOCK_SECONDS}" ] && seconds=5
[ -z "${ZAF_LOCK_FORCE}" ] && force=1
lockfile="${ZAF_TMP_DIR}/zaflock_${lkey}"
lockfile="/tmp/zaflock_${lkey}"
i=0
while [ -f "$lockfile" ] && [ $i -lt $seconds ]; do
sleep 1
@ -28,7 +28,6 @@ if [ -f "$lockfile" ] && [ -z "$force" ]; then
exit 1
fi
touch "$lockfile"
[ -n "$*" ] && $@
rm -f "$lockfile"
[ -n "$*" ] && $@ 2>"$lockfile"
[ -s "$lockfile" ] && zaf_wrn <"$lockfile"

57
zaf
View File

@ -25,23 +25,6 @@ ZAF_CFG_FILE="/etc/zaf.conf"
[ -n "$secondstage" ] && exec $0 $params
fi
[ -z "$ZAF_TMP_BASE" ] && ZAF_TMP_BASE=/tmp/zaf
ZAF_TMP_DIR="${ZAF_TMP_BASE}-${USER}"
[ -z "$ZAF_CACHE_DIR" ] && ZAF_CACHE_DIR=${ZAF_TMP_BASE}c
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
export ZAF_DEBUG
# If debug is on, do not remove tmp dir
if [ "$ZAF_DEBUG" -le 3 ]; then
trap "rm -rif ${ZAF_TMP_DIR}" EXIT
fi
! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"
if ! [ -d "${ZAF_CACHE_DIR}" ]; then
mkdir "${ZAF_CACHE_DIR}"
fi
if [ -f ./lib/zaf.lib.sh ]; then
. ./lib/zaf.lib.sh
. ./lib/plugin.lib.sh
@ -60,6 +43,26 @@ else
[ -f ${ZAF_LIB_DIR}/zaf.${ZAF_OS}.sh ] && . ${ZAF_LIB_DIR}/zaf.${ZAF_OS}.sh
fi
[ -z "$ZAF_TMP_BASE" ] && ZAF_TMP_BASE=/tmp/zaf
ZAF_TMP_DIR="${ZAF_TMP_BASE}-$(zaf_random)"
[ -z "$ZAF_CACHE_DIR" ] && ZAF_CACHE_DIR=${ZAF_TMP_BASE}c
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
export ZAF_DEBUG
export ZAF_LOG_STDERR="-s"
# If debug is on, do not remove tmp dir
if [ "$ZAF_DEBUG" -le 3 ]; then
trap "rm -rf ${ZAF_TMP_DIR}" EXIT
else
trap 'zaf_wrn "Leaving $ZAF_TMP_DIR" contents due to ZAF_DEBUG.' EXIT
fi
! [ -d "${ZAF_TMP_DIR}" ] && mkdir "${ZAF_TMP_DIR}"
if ! [ -d "${ZAF_CACHE_DIR}" ]; then
mkdir "${ZAF_CACHE_DIR}"
fi
if zaf_is_root; then
chgrp zabbix "${ZAF_CACHE_DIR}"
chmod g+w "${ZAF_CACHE_DIR}"
@ -115,15 +118,19 @@ show)
zaf_plugin_info $ZAF_PLUGINS_DIR/$plugin/control.zaf
done
else
if zaf_list_plugins | grep -q "^$1"; then
[ -f $ZAF_PLUGINS_DIR/$1/control.zaf ] && zaf_plugin_info $ZAF_PLUGINS_DIR/$1/control.zaf || zaf_err "Plugin $1 not installed."
else
if echo $1 |grep -q ^http; then
zaf_prepare_plugin "$1" "$ZAF_TMP_DIR/plugin"
zaf_plugin_info "$ZAF_TMP_DIR/plugin/control.zaf"
if echo $1 | grep -vq "\."; then
if zaf_list_plugins | grep -q "^$1"; then
zaf_is_plugin $1 && zaf_plugin_info $ZAF_PLUGINS_DIR/$1/control.zaf || zaf_err "Plugin $1 not installed."
else
zaf_err "Plugin $1 not installed."
if echo $1 |grep -q ^http; then
zaf_prepare_plugin "$1" "$ZAF_TMP_DIR/plugin"
zaf_plugin_info "$ZAF_TMP_DIR/plugin/control.zaf"
else
zaf_err "Plugin $1 not installed."
fi
fi
else
zaf_item_info "$1"
fi
fi
;;
@ -153,7 +160,7 @@ test)
for p in $plugins; do
! zaf_is_plugin $p && zaf_err "Unknown plugin $p"
for i in $(zaf_list_plugin_items $p test); do
echo $i: $(zaf_test_item $i)
zaf_test_item $i
echo
done
done