# -----------------------------------------------------------------------------
# ZABBIX NOTLARI
# -----------------------------------------------------------------------------
Debian Jessie ile test edilmiştir.


# -----------------------------------------------------------------------------
# KURULUM
# -----------------------------------------------------------------------------

# Paketler
apt-get install postgresql postgresql-contrib --install-recommends
apt-get install zabbix-server-pgsql zabbix-frontend-php --install-recommends

# Veritabanı ayarları
POSTGRESQL_PASSWORD=`echo $RANDOM | sha256sum | cut -d" " -f1`
ZABBIX_WEB_PASSWORD=`echo $POSTGRESQL_PASSWORD | cut -c1-8`

su -l postgres -c \
    "createdb zabbix"
su -l postgres -c \
    "psql <<< \"CREATE USER zabbix PASSWORD '$POSTGRESQL_PASSWORD';\""
su -l postgres -c \
    "export PGPASSWORD=\"$POSTGRESQL_PASSWORD\"; \
     zcat /usr/share/zabbix-server-pgsql/{schema,images,data}.sql.gz | \
     psql -U zabbix -h localhost -d zabbix"
su -l postgres -c \
    "psql zabbix << EOF
        UPDATE users
        SET passwd = md5('$ZABBIX_WEB_PASSWORD')
        WHERE alias = 'Admin';
EOF

# /etc/default/zabbix-server
START=yes

# /etc/zabbix/zabbix.conf.php
<?php
global $DB;

$DB['TYPE']     = 'POSTGRESQL';
$DB['SERVER']   = 'localhost';
$DB['PORT']     = '0';
$DB['DATABASE'] = 'zabbix';
$DB['USER']     = 'zabbix';
$DB['PASSWORD'] = '#POSTGRESQL_PASSWORD#';

// SCHEMA is relevant only for IBM_DB2 database
$DB['SCHEMA'] = '';

$ZBX_SERVER      = 'localhost';
$ZBX_SERVER_PORT = '10051';
$ZBX_SERVER_NAME = '';

$IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG;
?>

# /etc/zabbix/zabbix_server.conf
DBPassword=#POSTGRESQL_PASSWORD#

# Postgresql zabbix kullanıcısının parolası
sed -i "s/#POSTGRESQL_PASSWORD#/${POSTGRESQL_PASSWORD}/" \
    /etc/zabbix/zabbix.conf.php
sed -i "s/#POSTGRESQL_PASSWORD#/${POSTGRESQL_PASSWORD}/" \
    /etc/zabbix/zabbix_server.conf

# /etc/zabbix/zabbix_agentd.conf.d/host.conf
Hostname=admin-mon

# /etc/php5/apache2/php.ini
max_execution_time = 300
max_input_time = 600
post_max_size = 32M
upload_max_filesize = 8M
date.timezone = "#TIMEZONE#"

# timezone değerinin set edilmesi
TIMEZONE="`cat /etc/timezone || echo UTC`"
sed -i "s~#TIMEZONE#~${TIMEZONE}~" /etc/php5/apache2/php.ini

# index.html
echo > /var/www/html/index.html

# /etc/apache2/conf-available/security.conf
ServerTokens Prod
ServerSignature Off

# /etc/apache2/conf-available/servername.conf
ServerName localhost

# /etc/apache2/conf-available/zabbix-server.conf
<IfModule mod_alias.c>
    Alias /zabbix /usr/share/zabbix
</IfModule>

<Directory /usr/share/zabbix>
    Options Indexes FollowSymLinks MultiViews
    AllowOverride None
    Order allow,deny
    allow from all
</Directory>

# mod, conf, site
a2ensite default-ssl.conf
a2enconf servername
a2enconf zabbix-server
a2enmod ssl



# -----------------------------------------------------------------------------
# ZABBIX SENDER
# -----------------------------------------------------------------------------
zabbix_sender, Zabbix sunucuya veri göndermek için kullanılır. Uzun süren
scriptler içinde kullanılabilir.

# zabbix_sender
zabbix_sender -z zabbixserver.gno.loc -s "myhostname" -k db.connections -o 43

# -input-file
Bir text dosyaya birden fazla değer kaydedilip tek seferde gönderilebilir.



# -----------------------------------------------------------------------------
# ZABBIX GET
# -----------------------------------------------------------------------------
Zabbix Agent makinelerden veri almak için kullanılır.

zabbix_get -s 127.0.0.1 -p 10050 -k "system.cpu.load[all,avg1]"


# -----------------------------------------------------------------------------
# ZABBIX API
# -----------------------------------------------------------------------------

# Paketler
apt-get install curl jq

# api init
API_HOST="http://localhost/zabbix/api_jsonrpc.php"

HEADER=`cat <<EOF
Content-Type: application/json-rpc
EOF

# user.authentication
JSON=`cat <<EOF
{
    "jsonrpc" : "2.0",
    "method" : "user.authenticate",
    "params" : {
        "user" : "Admin",
        "password" : "$PASSWD"
    },
    "auth" : null,
    "id" : 0
}
EOF`

TOKEN=`curl -s -X POST -H "$HEADER" -d "$JSON" $API_HOST | \
    jq '.result'`

echo $TOKEN
>>> "ee156f93682b14c02117739f53e0bb94"


# hostgroup.create
JSON=`cat <<EOF
{
    "jsonrpc" : "2.0",
    "method" : "hostgroup.create",
    "params" : {
        "name" : "My Servers"
    },
    "auth" : "$TOKEN",
    "id" : 0
}
EOF`

GROUP_ID=`curl -s -X POST -H "$HEADER" -d "$JSON" $API_HOST | \
        jq '.result.groupids[0]' | \
        cut -d '"' -f2`



# -----------------------------------------------------------------------------
# KAYNAKLAR
# -----------------------------------------------------------------------------
https://www.zabbix.com/documentation/2.2/start
https://www.zabbix.com/documentation/2.2/manual/api
https://www.zabbix.com/documentation/2.2/manual/api/reference
http://www.looke.ch/wp/talking-to-the-the-zabbix-json-api


# -----------------------------------------------------------------------------
# GEÇİCİ NOTLAR
# -----------------------------------------------------------------------------
PASSWD=`egrep PASSWORD \
    /var/lib/lxc/admin-mon/rootfs/etc/zabbix/zabbix.conf.php |
    cut -d"'" -f4 | cut -c1-8`