Docker Cookbook

for
s
in
sizes
if
s
.
id
==
SIZE_ID
][
0
]
image
=
[
i
for
i
in
images
if
i
.
id
==
IMAGE_ID
][
0
]
#Reads cloud config file
userdata
=
"\n"
.
join
(
open
(
'./cloud.cfg'
)
.
readlines
())
#Replace the name of the ssh key pair with yours
#You will need to open SSH port 22 on your default security group
6.9 Starting an Ubuntu Core Snappy Instance on AWS EC2 | 189

---

name
=
"snappy"
node
=
driver
.
create_node
(
name
=
name
,
image
=
image
,
size
=
size
,
\
ex_keyname
=
'snappy'
,
ex_userdata
=
userdata
)
print
node
.
extra
[
'network_interfaces'
]
If you want to use a different availability zone than 
EU_WEST
, you
will need to check the 
announcement
 for the correct AMI ID in
your preferred zone.
Discussion
Snappy is available in Beta on Amazon AWS, Google GCE, and Microsoft Azure, as
shown in 
Figure 6-1
.
Figure 6-1. Snappy Beta on public clouds
Follow the 
documentation
 to start an instance in these clouds by using the
command-line tools for each provider, or modify the Libcloud-based script provided.
For instance on Google GCE, once you have created an 
account
 and installed the
Cloud SDK
, you can start a Snappy instance with the GCE Cloud SDK:
$ gcloud compute instances create snappy-test \
--image-project ubuntu-snappy \
--image ubuntu-core-devel-v20141215 \
--metadata-from-file user-data=cloud.cfg
Created [https://www.googleapis.com/compute/v1/projects/runseb/zones/\
europe-west1-c/instances/snappy-test2].
NAME ZONE MACHINE_TYPE INTERNAL_IP EXTERNAL_IP STATUS
snappy-test2 europe-west1-c n1-standard-1 10.240.250.42 130.211.103.14 RUNNING