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haproxy
Commit c16a96ba authored by Vladimir Bashkirtsev's avatar Vladimir Bashkirtsev
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Makefile 0 → 100644
View file @ c16a96ba
all: haproxy-cfg haproxy-config
tar xf haproxy-1.8.9.tar.gz
$(MAKE) -C haproxy-1.8.9 TARGET=linux2628 USE_PCRE=1 USE_PCRE_JIT=1 USE_OPENSSL=1 USE_ZLIB=1 USE_TFO=1 USE_SYSTEMD=1
$(MAKE) -C haproxy-1.8.9 install PREFIX=/usr
$(MAKE) -C haproxy-1.8.9/contrib/systemd PREFIX=/usr
@echo "d /run/haproxy 755 root root -" > /usr/lib/tmpfiles.d/haproxy.conf
cp haproxy-1.8.9/contrib/systemd/haproxy.service /lib/systemd/system/haproxy.service
systemctl enable haproxy
mkdir -p /etc/haproxy
@echo "$$HAPROXY_CFG" > /etc/haproxy/haproxy.cfg
@echo "$$HAPROXY_CFG" > /etc/haproxy/haproxy.cfg.template
@echo "$$HAPROXY_CONFIG" > /etc/config/haproxy
install -v -Dm755 haproxy /usr/share/easycwmp/functions
install -v -Dm755 haproxy_discovery.sh /usr/bin
install -v -Dm755 haproxy_stats.sh /usr/bin
sed -e '/^UserParameter=device\.product.*/a UserParameter=haproxy.stats[*],/usr/bin/haproxy_stats.sh $$1 $$2 $$3 $$4' -i /etc/zabbix_agentd.conf
sed -e '/^UserParameter=device\.product.*/a UserParameter=haproxy.list.discovery[*],/usr/bin/haproxy_discovery.sh $$1 $$2' -i /etc/zabbix_agentd.conf
rm -rf haproxy-1.8.9
haproxy-cfg:
define HAPROXY_CFG
global
log /dev/log local0 info
stats socket /run/haproxy/info.sock mode 666 expose-fd listeners level user
listen MariaDB
bind *:3306
mode tcp
log global
timeout connect 10s
timeout client 10800s
timeout server 10800s
balance source
option httpchk
default-server port 9000 inter 2s downinter 5s rise 3 fall 2 slowstart 60s maxconn 150 maxqueue 1 weight 100
endef
export HAPROXY_CFG
haproxy-config:
define HAPROXY_CONFIG
config wsrep 'galera'
option cluster_address ''
endef
export HAPROXY_CONFIG
haproxy 0 → 100755
View file @ c16a96ba
#!/bin/sh
#common_execute_method_param "$parameter" "$permission" "$get_cmd" "$set_cmd" "xsd:$type" "$forcedinform"
# $forcedinform should be set to 1 if the parameter is included in the inform message otherwise empty
# Default of $type = string
#############################
# Entry point functuons #
#############################
prefix_list="$prefix_list $DMROOT.HAProxy."
entry_execute_method_list="$entry_execute_method_list entry_execute_method_root_HAProxy"
entry_execute_method_list_forcedinform="$entry_execute_method_list_forcedinform entry_execute_method_root_HAProxy"
entry_execute_method_root_HAProxy() {
case "$1" in ""|"$DMROOT."|"$DMROOT.HAProxy."*)
common_execute_method_obj "$DMROOT.HAProxy." "0"
common_execute_method_param "$DMROOT.HAProxy.GaleraClusterAddress" "1" "HAProxy_get_cluster_address" "HAProxy_set_cluster_address"
return 0;
;;
esac
return $E_INVALID_PARAMETER_NAME;
}
#######################################
# Data model parameters functions #
#######################################
HAProxy_get_cluster_address() {
echo `$UCI_GET haproxy.galera.cluster_address`
}
HAProxy_set_cluster_address() {
local address=`$UCI_GET haproxy.galera.cluster_address`
if [ "$address" != "$1" ]; then
$UCI_SET haproxy.galera.cluster_address="$1"
$UCI_COMMIT
cp -f /etc/haproxy/haproxy.cfg.template /etc/haproxy/haproxy.cfg
if [ ! -z "$1" ]; then
IFS=', ' read -r -a array <<< "$1"
for pos in "${!array[@]}"
do
let "index=$pos+1"
echo -e "\tserver $index ${array[pos]}:3306 check" >> /etc/haproxy/haproxy.cfg
done
fi
systemctl reload haproxy
fi
}
haproxy.groups 0 → 100644
View file @ c16a96ba
bin
/lib/systemd/system/.*
/usr/lib/tmpfiles.d/.*
/usr/share/easycwmp/functions/.*
/usr/bin/.*
/usr/sbin/.*
etc
/etc/.*
man
/usr/share/man/.*
doc
/usr/doc/.*
haproxy_discovery.sh 0 → 100644
View file @ c16a96ba
#!/bin/bash
#
# Get list of Frontends and Backends from HAPROXY
# Example: ./haproxy_discovery.sh [/var/run/haproxy/info.sock] FRONTEND|BACKEND|SERVERS
# First argument is optional and should be used to set location of your HAPROXY socket
# Second argument is should be either FRONTEND, BACKEND or SERVERS, will default to FRONTEND if not set
#
# !! Make sure the user running this script has Read/Write permissions to that socket !!
#
## haproxy.cfg snippet
# global
# stats socket /run/haproxy/info.sock mode 666 level user
HAPROXY_SOCK="/var/run/haproxy/info.sock"
[ -n "$1" ] && echo $1 | grep -q ^/ && HAPROXY_SOCK="$(echo $1 | tr -d '\040\011\012\015')"
if [[ "$1" =~ (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?):[0-9]{1,5} ]];
then
HAPROXY_STATS_IP="$1"
QUERYING_METHOD="TCP"
fi
QUERYING_METHOD="${QUERYING_METHOD:-SOCKET}"
query_stats() {
if [[ ${QUERYING_METHOD} == "SOCKET" ]]; then
echo "show stat" | socat ${HAPROXY_SOCK} stdio 2>/dev/null
elif [[ ${QUERYING_METHOD} == "TCP" ]]; then
echo "show stat" | nc ${HAPROXY_STATS_IP//:/ } 2>/dev/null
fi
}
get_stats() {
echo "$(query_stats)" | grep -v "^#"
}
[ -n "$2" ] && shift 1
case $1 in
B*) END="BACKEND" ;;
F*) END="FRONTEND" ;;
S*)
for backend in $(get_stats | grep BACKEND | cut -d, -f1 | uniq); do
for server in $(get_stats | grep "^${backend}," | grep -v BACKEND | cut -d, -f2); do
serverlist="$serverlist,\n"'\t\t{\n\t\t\t"{#BACKEND_NAME}":"'$backend'",\n\t\t\t"{#SERVER_NAME}":"'$server'"}'
done
done
echo -e '{\n\t"data":[\n'${serverlist#,}']}'
exit 0
;;
*) END="FRONTEND" ;;
esac
for frontend in $(get_stats | grep "$END" | cut -d, -f1 | uniq); do
felist="$felist,\n"'\t\t{\n\t\t\t"{#'${END}'_NAME}":"'$frontend'"}'
done
echo -e '{\n\t"data":[\n'${felist#,}']}'
haproxy_stats.sh 0 → 100644
View file @ c16a96ba
#!/bin/bash
set -o pipefail
if [[ "$1" = /* ]]
then
HAPROXY_SOCKET="$1"
shift 1
else
if [[ "$1" =~ (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?):[0-9]{1,5} ]];
then
HAPROXY_STATS_IP="$1"
QUERYING_METHOD="TCP"
shift 1
fi
fi
pxname="$1"
svname="$2"
stat="$3"
DEBUG=${DEBUG:-0}
HAPROXY_SOCKET="${HAPROXY_SOCKET:-/var/run/haproxy/info.sock}"
QUERYING_METHOD="${QUERYING_METHOD:-SOCKET}"
CACHE_STATS_FILEPATH="${CACHE_STATS_FILEPATH:-/var/tmp/haproxy_stats.cache}"
CACHE_STATS_EXPIRATION="${CACHE_STATS_EXPIRATION:-5}" # in minutes
CACHE_INFO_FILEPATH="${CACHE_INFO_FILEPATH:-/var/tmp/haproxy_info.cache}" ## unused
CACHE_INFO_EXPIRATION="${CACHE_INFO_EXPIRATION:-5}" # in minutes ## unused
GET_STATS=${GET_STATS:-1} # when you update stats cache outsise of the script
SOCAT_BIN="$(which socat)"
NC_BIN=""
FLOCK_BIN="$(which flock)"
FLOCK_WAIT=15 # maximum number of seconds that "flock" waits for acquiring a lock
FLOCK_SUFFIX='.lock'
CUR_TIMESTAMP="$(date '+%s')"
debug() {
[ "${DEBUG}" -eq 1 ] && echo "DEBUG: $@" >&2 || true
}
debug "SOCAT_BIN => $SOCAT_BIN"
debug "NC_BIN => $NC_BIN"
debug "FLOCK_BIN => $FLOCK_BIN"
debug "FLOCK_WAIT => $FLOCK_WAIT seconds"
debug "CACHE_FILEPATH => $CACHE_FILEPATH"
debug "CACHE_EXPIRATION => $CACHE_EXPIRATION minutes"
debug "HAPROXY_SOCKET => $HAPROXY_SOCKET"
debug "pxname => $pxname"
debug "svname => $svname"
debug "stat => $stat"
# check if socat is available in path
if [ "$GET_STATS" -eq 1 ] && [[ $QUERYING_METHOD == "SOCKET" && -z "$SOCAT_BIN" ]] || [[ $QUERYING_METHOD == "TCP" && -z "$NC_BIN" ]]
then
echo 'ERROR: cannot find socat binary'
exit 126
fi
# if we are getting stats:
# check if we can write to stats cache file, if it exists
# or cache file path, if it does not exist
# check if HAPROXY socket is writable
# if we are NOT getting stats:
# check if we can read the stats cache file
if [ "$GET_STATS" -eq 1 ]
then
if [ -e "$CACHE_FILEPATH" ] && [ ! -w "$CACHE_FILEPATH" ]
then
echo 'ERROR: stats cache file exists, but is not writable'
exit 126
elif [ ! -w ${CACHE_FILEPATH%/*} ]
then
echo 'ERROR: stats cache file path is not writable'
exit 126
fi
if [[ $QUERYING_METHOD == "SOCKET" && ! -w $HAPROXY_SOCKET ]]
then
echo "ERROR: haproxy socket is not writable"
exit 126
fi
elif [ ! -r "$CACHE_FILEPATH" ]
then
echo 'ERROR: cannot read stats cache file'
exit 126
fi
# index:name:default
MAP="
1:pxname:@
2:svname:@
3:qcur:9999999999
4:qmax:0
5:scur:9999999999
6:smax:0
7:slim:0
8:stot:@
9:bin:9999999999
10:bout:9999999999
11:dreq:9999999999
12:dresp:9999999999
13:ereq:9999999999
14:econ:9999999999
15:eresp:9999999999
16:wretr:9999999999
17:wredis:9999999999
18:status:UNK
19:weight:9999999999
20:act:9999999999
21:bck:9999999999
22:chkfail:9999999999
23:chkdown:9999999999
24:lastchg:9999999999
25:downtime:0
26:qlimit:0
27:pid:@
28:iid:@
29:sid:@
30:throttle:9999999999
31:lbtot:9999999999
32:tracked:9999999999
33:type:9999999999
34:rate:9999999999
35:rate_lim:@
36:rate_max:@
37:check_status:@
38:check_code:@
39:check_duration:9999999999
40:hrsp_1xx:@
41:hrsp_2xx:@
42:hrsp_3xx:@
43:hrsp_4xx:@
44:hrsp_5xx:@
45:hrsp_other:@
46:hanafail:@
47:req_rate:9999999999
48:req_rate_max:@
49:req_tot:9999999999
50:cli_abrt:9999999999
51:srv_abrt:9999999999
52:comp_in:0
53:comp_out:0
54:comp_byp:0
55:comp_rsp:0
56:lastsess:9999999999
57:last_chk:@
58:last_agt:@
59:qtime:0
60:ctime:0
61:rtime:0
62:ttime:0
"
_STAT=$(echo -e "$MAP" | grep :${stat}:)
_INDEX=${_STAT%%:*}
_DEFAULT=${_STAT##*:}
debug "_STAT => $_STAT"
debug "_INDEX => $_INDEX"
debug "_DEFAULT => $_DEFAULT"
# check if requested stat is supported
if [ -z "${_STAT}" ]
then
echo "ERROR: $stat is unsupported"
exit 127
fi
# method to retrieve data from haproxy stats
# usage:
# query_stats "show stat"
query_stats() {
if [[ ${QUERYING_METHOD} == "SOCKET" ]]; then
echo $1 | socat ${HAPROXY_SOCKET} stdio 2>/dev/null
elif [[ ${QUERYING_METHOD} == "TCP" ]]; then
echo $1 | nc ${HAPROXY_STATS_IP//:/ } 2>/dev/null
fi
}
# a generic cache management function, that relies on 'flock'
check_cache() {
local cache_type="${1}"
local cache_filepath="${2}"
local cache_expiration="${3}"
local cache_filemtime
cache_filemtime=$(stat -c '%Y' "${cache_filepath}" 2> /dev/null)
if [ $((cache_filemtime+60*cache_expiration)) -ge ${CUR_TIMESTAMP} ]
then
debug "${cache_type} file found, results are at most ${cache_expiration} minutes stale.."
elif "${FLOCK_BIN}" --exclusive --wait "${FLOCK_WAIT}" 200
then
cache_filemtime=$(stat -c '%Y' "${cache_filepath}" 2> /dev/null)
if [ $((cache_filemtime+60*cache_expiration)) -ge ${CUR_TIMESTAMP} ]
then
debug "${cache_type} file found, results have just been updated by another process.."
else
debug "no ${cache_type} file found, querying haproxy"
query_stats "show ${cache_type}" > "${cache_filepath}"
fi
fi 200> "${cache_filepath}${FLOCK_SUFFIX}"
}
# generate stats cache file if needed
get_stats() {
check_cache 'stat' "${CACHE_STATS_FILEPATH}" ${CACHE_STATS_EXPIRATION}
}
# generate info cache file
## unused at the moment
get_info() {
check_cache 'info' "${CACHE_INFO_FILEPATH}" ${CACHE_INFO_EXPIRATION}
}
# get requested stat from cache file using INDEX offset defined in MAP
# return default value if stat is ""
get() {
# $1: pxname/svname
local _res="$("${FLOCK_BIN}" --shared --wait "${FLOCK_WAIT}" "${CACHE_STATS_FILEPATH}${FLOCK_SUFFIX}" grep $1 "${CACHE_STATS_FILEPATH}")"
if [ -z "${_res}" ]
then
echo "ERROR: bad $pxname/$svname"
exit 127
fi
_res="$(echo $_res | cut -d, -f ${_INDEX})"
if [ -z "${_res}" ] && [[ "${_DEFAULT}" != "@" ]]
then
echo "${_DEFAULT}"
else
echo "${_res}"
fi
}
# not sure why we'd need to split on backslash
# left commented out as an example to override default get() method
# status() {
# get "^${pxname},${svnamem}," $stat | cut -d\ -f1
# }
# this allows for overriding default method of getting stats
# name a function by stat name for additional processing, custom returns, etc.
if type get_${stat} >/dev/null 2>&1
then
debug "found custom query function"
get_stats && get_${stat}
else
debug "using default get() method"
get_stats && get "^${pxname},${svname}," ${stat}
fi
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