Deploy MAAS(11)

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Since the deployment meets some problem, I have to consider doing some tricks in the MAAS controller, to let the deployment much more easier and time-saving, following is the steps for setting up such environment.

Resize Maas Controller Disk

Since the Mass Controller machine only have 40G size harddisk, it will be not enough if we enable the repository cache for guest machines, thus we have to resize the disk.
First shutdown the virtual machine.
Resize the qcow2 file via:

# virsh dumpxml MassController | grep qcow2
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/home/juju/img/MassController.qcow2'/>
# qemu-img resize /home/juju/img/MassController.qcow2 +40GB
Image resized.
# qemu-img info /home/juju/img/MassController.qcow2
image: /home/juju/img/MassController.qcow2
file format: qcow2
virtual size: 80G (85899345920 bytes)
disk size: 9.4G
cluster_size: 65536
# virsh start MassController

Now use a liveCD for startup the machine, this will bootup the machine into a iso booted environment.

$ wget

Bootup the machine and resize like following:


In Mass Controller machine, install following packages:

$ sudo apt-get install squid-deb-proxy avahi-utils
$ sudo start squid-deb-proxy

Every client should install following package:

$ sudo apt-get install squid-deb-proxy-client

Don’t install squid-deb-proxy, because it will cause maas to be removed.

In fact MAAS manages its own squid, named maas-proxy, which could be examined via:

$ ps -ef | grep squid
proxy      763     1  0 Mar23 ?        00:00:07 /usr/sbin/squid3 -N -f /etc/maas/maas-proxy.conf
Trusty      3892  3861  0 00:13 pts/5    00:00:00 grep --color=auto squid

This may cause all of the packages, or images be cached in squid, but it will be very helpful if we want to speedup the installation speed.
configure the squide’s cache directory size via:

$ sudo vim /etc/maas/maas-proxy.conf

cache_dir ufs /var/spool/squid 100 16 256
By default, the cache_dir directory may be commented.

/var/spool/squid – This is the directory folder where squid will use to swap cache your server web files
100 – The amount of disk space to use in MB for your caching directory
16 – the first-level subdirectories which will be created in your cache directory
256 – The number of second-level subdirectories which will be created under each first level directory

We should add following configuration under the configure.yaml of the .juju/:

    no-proxy: localhost,
    type: maas

After configuration, the bootstrap and add-machine will succesfully deployed.