Munin을 Docker 컨테이너에 설치

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시스템

참조

건설

1. 컨테이너 건조

root# docker pull ubuntu:latest

root# docker run \
-itd --name munin-server01 \
-p 0.0.0.0:8080:80 \
-p 0.0.0.0:4948:4948 \
--network=isolated_nw \
-t ubuntu:latest /bin/bash

root# docker attach munin-server01

[root@5e4d20afb75f /]# dpkg-reconfigure tzdata
[root@5e4d20afb75f /]# apt-get -y update ; apt-get -y upgrade

[root@5e4d20afb75f /]# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"

2. munin 설치 (감시 서버 on 컨테이너)

[root@5e4d20afb75f /]# apt-get -y install apache2
[root@5e4d20afb75f /]# apt-get -y install munin vim

[root@5e4d20afb75f /]# vi /etc/munin/munin.conf

add lines

### docker host
[fs1]
    address 192.168.100.5
    use_node_name yes

[root@5e4d20afb75f /]# vi /etc/apache2/conf-enabled/security.conf

ServerTokens Prod

[root@5e4d20afb75f /]# vi /etc/apache2/apache2.conf

ServerName www.munin-server.com

[root@5e4d20afb75f /]# vi /etc/apache2/conf-enabled/munin.conf

### add LAN Segments
Require ip 192.168.100.0/24

[root@5e4d20afb75f /]# service cron start
[root@5e4d20afb75f /]# /etc/init.d/munin start 
[root@5e4d20afb75f /]# service apache2 start

3. munin-node 설치(Docker Host on ubuntu)

# apt-get install munin-node

# docker network inspect isolated_nw | jq .[].Containers
(snip)
    "IPv4Address": "172.19.0.3/16",

# vi /etc/munin/munin-node.conf

(edit)

host_name fs1
allow ^172\.19\.0\.3$

# service munin-node restart

4. 웹 브라우저에서 액세스

5. 끝

additional memo

# munin-node-configure --shell --snmp 192.168.100.203 \
--snmpversion 2c --snmpcommunity public

ln -s '/usr/share/munin/plugins/snmp__if_' '/etc/munin/plugins/snmp_192.168.100.203_if_1'
ln -s '/usr/share/munin/plugins/snmp__if_' '/etc/munin/plugins/snmp_192.168.100.203_if_10119'
ln -s '/usr/share/munin/plugins/snmp__if_' '/etc/munin/plugins/snmp_192.168.100.203_if_10124'
ln -s '/usr/share/munin/plugins/snmp__if_err_' '/etc/munin/plugins/snmp_192.168.100.203_if_err_1'
ln -s '/usr/share/munin/plugins/snmp__if_err_' '/etc/munin/plugins/snmp_192.168.100.203_if_err_10119'
ln -s '/usr/share/munin/plugins/snmp__if_err_' '/etc/munin/plugins/snmp_192.168.100.203_if_err_10124'
ln -s '/usr/share/munin/plugins/snmp__if_multi' '/etc/munin/plugins/snmp_192.168.100.203_if_multi'
ln -s '/usr/share/munin/plugins/snmp__uptime' '/etc/munin/plugins/snmp_192.168.100.203_uptime'

# munin-node-configure --shell --snmp 192.168.100.203 \
--snmpversion 2c --snmpcommunity public | sh