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2020-07-04 15:07:08 -07:00 · 2020-07-04 15:07:08 -07:00 · 47bdbc9a87
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+# Creating a New VM Guest on an IETF NOC Ganeti Cluster
+
+## Install Image Types
+
+Install the noop image type on all nodes in the cluster
+
+```
+echo 'deb http://repo.noc.grnet.gr/ wheezy main' > /etc/apt/sources.list.d/grnet.list
+wget -O - http://repo.noc.grnet.gr/grnet.gpg.key | apt-key add -
+apt-get update
+apt-get install ganeti-os-noop
+```
+
+If you get in trouble with apt-get update failing using IPv6, try
+
+```
+cat > /etc/apt/apt.conf.d/99force-ipv4
+Acquire::ForceIPv4 "true";
+```
+
+Now you can create instances a la
+
+```
+gnt-instance add -t plain -o noop
+...
+```
+
+## Create the VM
+
+This is the script i use as it is in vmhost-4:~randy/do-nnew
+
+```
+#!/bin/sh
+
+# do-new node diskGB ramGB nameFQDN
+
+NODE=$1
+DISK=$2
+RAM=$3
+NAME=$4
+
+gnt-instance add \
+     -t plain \
+     -o noop \
+     -s ${DISK}G \
+     -B maxmem=${RAM}G,minmem=$((${RAM}/2))G \
+     -n $NODE \
+     -H kvm:vnc_bind_address=127.0.0.1 \
+     --no-install \
+     --no-start \
+     --no-ip-check \
+     --no-name-check \
+     ${NAME}
+```
+
+## Install from CD-ROM
+
+Start the Guest VM With the CD-ROM Mounted ==
+
+```
+gnt-instance start -H boot_order=cdrom,cdrom_image_path=/var/iso/ubuntu-14.04.2-server-amd64.iso <your VM name>
+```
+
+### Find the Console Port of the Running VM
+
+Then find out on what port the vnc server will appear, 11019 in this case
+
+```
+gnt-instance info meetecho-1.meeting.ietf.org | grep console
+  console connection: vnc to vmhost-6.meeting.ietf.org:11019 (display 5119)
+    serial_console: default (True)
+```
+
+### Tunnel VNC over SSH
+
+From your laptop
+
+```
+ssh -N -L 5900:127.0.0.1:<port from gnt-instance info> <vm-node-for-image>
+```
+
+### Do the Install
+
+It should have booted the CD-ROM.  Now do the install of the OpSys in your usual fashion.
+
+When it finishes, if you just let it reboot, it will likely just boot the CD-ROM again.  So restart the guest by
+
+```
+gnt-instance reboot your.vm.name
+```
+
+### Enable Serial Console
+
+It is also smart to enable the serial console in the guest so that the Ganeti host is able to
+
+```
+gnt-instance console your.vm.name
+```
+
+### Detailed Configuration
+
+Configure the Network to the Correct IP, Gateway etc.
+
+```
+e /etc/network/interfaces
+```
+
+Fix the hostname
+
+```
+echo "foo.meeting.ietf.org" > /etc/hostname
+hostname `cat /etc/hostname`
+```
+
+Fix the timezone in case you made a mistake in install
+
+```
+dpkg-reconfigure tzdata
+```
+
+If you have reconfigured networking to be on the public LAN, then you need to bind the NIC to the public LAN with
+
+```
+gnt-instance modify --net 0:modify,link=br-public your.vm.name
+```
+
+Restart the server from ganeti
+
+```
+gnt-instance reboot foo.meeting.ietf.org
+```