Changes between Initial Version and Version 1 of UpgradeOpenvzNotes

Timestamp:

Dec 14, 2012 9:36:03 AM (11 years ago)

Author:

Ted Faber

Comment:

--

UpgradeOpenvzNotes

@@ +1 @@
+= Upgrade Notes for OpenVZ =
+
+== Upgrading Templates ==
+
+Start an experiment with the templates to update in it.  For example:
+
+{{{
+source tb_compat.tcl
+set ns [new Simulator]
+
+set u1004x86 [$ns node]
+tb-add-node-attribute $u1004x86 containers:openvz_template ubuntu-10.04-x86
+set u1004x8664 [$ns node]
+tb-add-node-attribute $u1004x8664 containers:openvz_template ubuntu-10.04-x86_64
+set u1204x86 [$ns node]
+tb-add-node-attribute $u1204x86 containers:openvz_template ubuntu-12.04-x86
+set u1204x8664 [$ns node]
+tb-add-node-attribute $u1204x8664 containers:openvz_template ubuntu-12.04-x86_64
+
+# Creation boilerplate
+$ns rtptoto Static
+$ns run
+
+}}}
+
+Stop one of the VMs:
+
+{{{
+$ sudo vzlist -n
+$ sudo vzlist -n
+      CTID      NPROC STATUS    IP_ADDR         NAME
+       102         21 running   -               u1004x86
+       103         26 running   -               u1204x86
+       104         19 running   -               u1004x8664
+$ sudo vzctl stop 102
+}}}
+
+Pull the creation commands for that VM out of {{{/var/containers/config/openvz_create_commands.yaml}}}.  You only need the creation and network setup commands, but it won't hurt to run them all.
+
+{{{
+vzctl create 101 --ostemplate ubuntu-12.04-x86_64
+/usr/sbin/vzctl set 101 --netif_add eth0,00:66:00:00:1c:2e,veth101.0,00:67:00:00:1c:2e --save
+}}}
+
+You'll also need the IP address of that node.  You can note it before or pull it from the extra_nodes table in the database.
+
+Start the VM and configure its networking
+
+{{{
+$ sudo vzctl 555 startA
+}}}
+At this point the virtual interface from the {{{---netif_add}}} will reappear.  Add it back into the control bridge:
+
+{{{
+$ sudo brctl addif control0 veth101.0
+~$ brctl show
+bridge name     bridge id               STP enabled     interfaces
+control0                8000.0025906ad176       no              eth0
+                                                        veth101.0
+                                                        veth102.0
+                                                        veth103.0
+                                                        veth104.0
+}}}
+
+Enter the VM and start its networking
+{{{
+$ sudo vzctl 555 enter
+root@pnode-0000:/# sudo ifconfig eth0 172.16.28.46 netmask 255.240.0.0 up
+sudo: unable to resolve host pnode-0000.faber-templates.safer.isi.deterlab.net
+root@pnode-0000:/# ip route add 192.168.0.0/22 dev eth0  scope link 
+root@pnode-0000:/# ip route add default via 192.168.1.254 dev eth0
+root@pnode-0000:/# ping users
+PING users.isi.deterlab.net (192.168.253.1) 56(84) bytes of data.
+64 bytes from users.isi.deterlab.net (192.168.253.1): icmp_req=1 ttl=63 time=2.02 ms
+64 bytes from users.isi.deterlab.net (192.168.253.1): icmp_req=2 ttl=63 time=1.39 ms
+}}}
+
+Now you have a functional, if minimal VM, and you can update the template in place.  E.g:
+
+{{{
+root@pnode-0000:/# apt-get update
+}}}
+
+
+
+In the host, add the 
+}}}