srv01# losetup /dev/loop0 /var/lib/libvirt/images/vmFSvm-rails.qcow2
srv01# kpartx -av /dev/loop0
add map loop0p1 (253:0): 0 497664 linear /dev/loop0 2048
add map loop0p2 (253:1): 0 41439234 linear /dev/loop0 501758
add map loop0p5 : 0 41439232 linear 253:1 2

srv01# fdisk -lu /dev/loop0

Disk /dev/loop0: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000412e5

Device Boot Start End Blocks Id System
/dev/loop0p1 * 2048 499711 248832 83 Linux
/dev/loop0p2 501758 41940991 20719617 5 Extended
/dev/loop0p5 501760 41940991 20719616 8e Linux LVM
srv01# lvdisplay
— Logical volume —
LV Path /dev/rails/root
LV Name root
VG Name rails
LV UUID sNfv19-M132-gVTb-2o2D-rmx8-YG0g-uSK2xE
LV Write Access read/write
LV Creation host, time ,
LV Status NOT available
LV Size 18,88 GiB
Current LE 4833
Segments 1
Allocation inherit
Read ahead sectors auto

— Logical volume —
LV Path /dev/rails/swap_1
LV Name swap_1
VG Name rails
LV UUID cdzPoA-KgTU-Ds02-prP2-nGJO-0yNZ-FCOVHA
LV Write Access read/write
LV Creation host, time ,
LV Status NOT available
LV Size 884,00 MiB
Current LE 221
Segments 1
Allocation inherit
Read ahead sectors auto

srv01# vgchange -a y
2 logical volume(s) in volume group „rails“ now active
srv01# lvdisplay
— Logical volume —
LV Path /dev/rails/root
LV Name root
VG Name rails
LV UUID sNfv19-M132-gVTb-2o2D-rmx8-YG0g-uSK2xE
LV Write Access read/write
LV Creation host, time ,
LV Status available
# open 0
LV Size 18,88 GiB
Current LE 4833
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:3

— Logical volume —
LV Path /dev/rails/swap_1
LV Name swap_1
VG Name rails
LV UUID cdzPoA-KgTU-Ds02-prP2-nGJO-0yNZ-FCOVHA
LV Write Access read/write
LV Creation host, time ,
LV Status available
# open 0
LV Size 884,00 MiB
Current LE 221
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:4

srv01# mount /dev/rails/root /media/rails_root

srv01# umount /media/rails_root
srv01# vgchange -an
0 logical volume(s) in volume group „rails“ now active
srv01# lvdisplay
— Logical volume —
LV Path /dev/rails/root
LV Name root
VG Name rails
LV UUID sNfv19-M132-gVTb-2o2D-rmx8-YG0g-uSK2xE
LV Write Access read/write
LV Creation host, time ,
LV Status NOT available
LV Size 18,88 GiB
Current LE 4833
Segments 1
Allocation inherit
Read ahead sectors auto

— Logical volume —
LV Path /dev/rails/swap_1
LV Name swap_1
VG Name rails
LV UUID cdzPoA-KgTU-Ds02-prP2-nGJO-0yNZ-FCOVHA
LV Write Access read/write
LV Creation host, time ,
LV Status NOT available
LV Size 884,00 MiB
Current LE 221
Segments 1
Allocation inherit
Read ahead sectors auto

srv01# kpartx -dv /dev/loop0
srv01# virsh start vm-rails
Domain vm-rails started

nginx ist ein kleiner hochperformanter Webserver und Proxy für http, pop3 und imap.

Dieser Artikel basiert auf dem help.ubuntu.com Eintrag Nginx/ReverseProxy.

Nginx Installation auf Debian Systemen:

sudo apt-get install nginx

Nginx Proxy Configuration (nur reverse, kein caching Proxy). Diese unter /etc/nginx/proxy.conf speichern.

proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffers 32 4k;

Nginx vhost Vorlage für Froxlor Domains, speichern unter /etc/nginx/TEMPLATE:

server {
listen 80;
server_name DOMAIN www.DOMAIN;
access_log /var/log/nginx/DOMAIN.access.log;
location / {
proxy_pass http://127.0.0.1:8888;
include /etc/nginx/proxy.conf;
}
}

Unter server_name werden die Froxlor Domains eingetragen, dazu gibt es gleich ein Script. proxy_pass verweisst auf die Apache2 Instanz, die hier unter 127.0.0.1 Port 8888 erreicht wird.

Froxlor Domains aus der MySQL Datenbank abfragen und als nginx vhosts speichern unter /etc/nginx/CREATE_VHOSTS:


DOMAINS=/etc/nginx/domainlist.txt
USE froxlor ; SELECT domain FROM panel_domains;
MYSQL

for domain in `cat $DOMAINS`
do
# echo $domain
sed s/DOMAIN/$domain/g /etc/nginx/TEMPLATE >/etc/nginx/sites-enabled/$domain
done

Domains auslesen und Vhosts schreiben:

sh /etc/nginx/CREATE_VHOSTS

Apache und Froxlor Configuration:

sudo apt-get install libapache2-mod-rpaf

Damit die wirkliche remote IP Adresse im Apache Logfile landet, muss das Apache2 mitgeteilt werden. In Froxlor wird unter SERVER > IPs and Ports > bearbeiten > Webserver domain config folgendes eingetragen:


<ifmodule mod_rpaf.c>
RPAFenable On
RPAFsethostname On
RPAFproxy_ips 83.151.25.150
</ifmodule>


RPAFproxy_ips sind die nginx IP Adressen, meist also die public IP. Mehreinträge sind möglich.

Proxy und Webserver neustarten:

invoke-rc.d nginx reload
invoke-rc.d apache2 reload