Editing Updating Debian template
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This article describes how you can update an existing precreated Debian or Ubuntu template. The procedure is pretty easy. | This article describes how you can update an existing precreated Debian or Ubuntu template. The procedure is pretty easy. | ||
| − | == Creating/configuring a temporary | + | == Creating/configuring a temporary VE == |
| − | First, you need to create a | + | First, you need to create a VE based on the template you want to update. Here is an example: |
[HN]# vzctl create 555 --ostemplate debian-4.0-i386-minimal | [HN]# vzctl create 555 --ostemplate debian-4.0-i386-minimal | ||
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[HN]# vzctl set 555 --ipadd x.x.x.x --nameserver y.y.y.y --save | [HN]# vzctl set 555 --ipadd x.x.x.x --nameserver y.y.y.y --save | ||
| − | You can get the value of nameserver from your /etc/resolv.conf. Your | + | You can get the value of nameserver from your /etc/resolv.conf. Your VE should have an Internet access, so you either supply a public IP, or see [[using NAT for VE with private IPs]] for information about how to use private IP and NAT. |
| − | + | Finally, check that Internet is working from inside a VE: | |
| − | + | [HN]# vzctl exec 555 ping -n 3 www.ru | |
| − | |||
| − | Finally, check that Internet is working from inside | ||
| − | [HN]# vzctl exec 555 ping -n | ||
== Update == | == Update == | ||
| − | Enter the | + | Enter the VE: |
[HN]# vzctl enter 555 | [HN]# vzctl enter 555 | ||
Update metadata and install updates: | Update metadata and install updates: | ||
| − | [ | + | [VE]# apt-get update && apt-get upgrade |
Cleanup: | Cleanup: | ||
| − | [ | + | [VE]# apt-get clean |
| − | [ | + | [VE]# > /etc/resolv.conf |
| − | Clean unused log files, .bash_history etc, then exit from a | + | Clean unused log files, .bash_history etc, then exit from a VE: |
| − | [ | + | [VE] # exit |
| − | Stop a | + | Stop a VE, remove its IP: |
[HN]# vzctl stop 555 | [HN]# vzctl stop 555 | ||
[HN]# vzctl set 555 --ipdel all --save | [HN]# vzctl set 555 --ipdel all --save | ||
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Now, rename the existing template cache: | Now, rename the existing template cache: | ||
[HN]# mv /vz/template/cache/debian-4.0-i386-minimal.tar.gz{,-old} | [HN]# mv /vz/template/cache/debian-4.0-i386-minimal.tar.gz{,-old} | ||
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Now create a new tarball: | Now create a new tarball: | ||
| − | [HN]# tar | + | [HN]# cd /vz/private/555 |
| + | [HN]# tar czf /vz/template/cache/debian-4.0-i386-minimal.tar.gz . | ||
Clean up: | Clean up: | ||
| − | |||
[HN]# vzctl destroy 555 | [HN]# vzctl destroy 555 | ||
[HN]# rm -f /etc/vz/conf/555.conf.destroyed | [HN]# rm -f /etc/vz/conf/555.conf.destroyed | ||
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The sizes should not differ much. | The sizes should not differ much. | ||
| − | Try to create and start | + | Try to create and start VE made from your new template: |
[HN]# vzctl create 222 --ostemplate debian-4.0-i386-minimal | [HN]# vzctl create 222 --ostemplate debian-4.0-i386-minimal | ||
[HN]# vzctl set 222 --ipadd 10.0.0.222 --save | [HN]# vzctl set 222 --ipadd 10.0.0.222 --save | ||
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[HN]# vzctl enter 222 | [HN]# vzctl enter 222 | ||
| − | Now execute a few basic commands to check | + | Now execute a few basic commands to check VE is fine. Examples are: <code>ps axf</code>, <code>dpkg -l</code>, etc. |
| − | Finally, clean up the testing | + | Finally, clean up the testing VE: |
[HN]# vzctl stop 222 | [HN]# vzctl stop 222 | ||
[HN]# vzctl destroy 222 | [HN]# vzctl destroy 222 | ||
