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fuzed ec2 helper script

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Octocat-spinner-32 lib
Octocat-spinner-32 .gitignore
Octocat-spinner-32 README
Octocat-spinner-32 fuze.example
README
FuzEc2 is a dumb helper script to automate all the stuff I was doing
manually for testing stacks of EC2 instances running a webapp on Fuzed.

Usage is thus:

$ cp fuze.example fuze
$ vim fuze (change all the configs)
$ ./fuze 

This will list the things you can do with the script

$ ./fuze spin

This will show you all the instance types you can spin, eg:

available types:
INST TYPE   RAM(GB)        CU      DISK      ARCH     COST/H
 m1.small       1.7         1       160        32       0.1
 m1.large       7.5         4       850        64       0.4
m1.xlarge      15.0         8      1690        64       0.8
c1.medium       1.7         5       350        32       0.2
c1.xlarge       7.0        20      1690        64       0.8

Then you can start spinning instances via:

$ ./fuze spin m1.small

To see which instances you have running, type:

$ ./fuze list

    i-213ff448	domU-12-31-39-00-C0-02	ec2-75-101-131-181.compute-1.amazonaws.com	m1.small	running
    i-1839f271	domU-12-31-39-00-5D-C6	ec2-67-202-36-240.compute-1.amazonaws.com	  m1.small	running
    i-a633f8cf	domU-12-31-39-00-5D-87	ec2-75-101-225-2.compute-1.amazonaws.com	  m1.small	running
    i-b839f2d1	domU-12-31-39-00-E8-C3	ec2-75-101-131-128.compute-1.amazonaws.com	m1.small	running
    i-5732f93e	domU-12-31-39-00-8D-91	ec2-75-101-205-249.compute-1.amazonaws.com	c1.xlarge	running
    i-0b33f862	domU-12-31-39-00-8D-71	ec2-75-101-200-57.compute-1.amazonaws.com	  c1.xlarge	running
    i-c833f8a1	domU-12-31-39-00-95-11	ec2-75-101-213-58.compute-1.amazonaws.com	  c1.xlarge	running
    i-163cf77f	domU-12-31-39-00-22-21	ec2-67-202-40-157.compute-1.amazonaws.com	  m1.xlarge	running
    i-3b3df652	domU-12-31-39-00-C0-B7	ec2-75-101-254-200.compute-1.amazonaws.com	m1.small	running

To make those instances into certain Fuzed node types, do thusly:

$ ./fuze attach_master i-b839f2d1    # creates a master node - do this first
$ ./fuze attach_faceplate i-1839f271 # creates a faceplate
$ ./fuze attach_frontend i-213ff448  # creates an haproxy node - do this after you add faceplates
$ ./fuze attach_rails i-5732f93e     # creates a rails node

Then you'll probably want to assign your frontend a static IP:
$ ec2-allocate-address # to get a static IP if you don't have one
$ ec2-associate-address YOUR.NEW.IP.ADDY -i i-213ff448   # assign your static IP to your haproxy node

To add more rails backend nodes, just do:

$ ./fuze spin c1.xlarge   # wait a minute for it to spin
$ ./fuze list             # grab the new i-xxxxxx instance id
$ ./fuze attach_rails i-xxxxxx

That's it - your capacity goes up.  For faceplates, you do this:

$ ./fuze spin m1.small    # wait a minute for it to spin
$ ./fuze list             # grab the new i-xxxxxx instance id
$ ./fuze attach_faceplate i-xxxxxx
$ ./fuze attach_frontend i-213ff448  # re-run this to make haproxy rewrite and restart 

You can see the stats on your haproxy node by visiting here:

http://your-frontend-address/haproxy?stats

And then enter the username/password you put in your config file to get access.


Here is an example of one big-ass cluster:

$ ./fuze list 

frontend    i-213ff448	domU-12-31-39-00-C0-02	ec2-75-101-131-181.compute-1.amazonaws.com	m1.small	running
faceplate   i-1839f271	domU-12-31-39-00-5D-C6	ec2-67-202-36-240.compute-1.amazonaws.com	m1.small	running
faceplate   i-a633f8cf	domU-12-31-39-00-5D-87	ec2-75-101-225-2.compute-1.amazonaws.com	m1.small	running
faceplate   i-4a33f823	domU-12-31-39-00-5D-D4	ec2-67-202-52-242.compute-1.amazonaws.com	m1.small	running
master      i-b839f2d1	domU-12-31-39-00-E8-C3	ec2-75-101-131-128.compute-1.amazonaws.com	m1.small	running
rails       i-5732f93e	domU-12-31-39-00-8D-91	ec2-75-101-205-249.compute-1.amazonaws.com	c1.xlarge	running
rails       i-0b33f862	domU-12-31-39-00-8D-71	ec2-75-101-200-57.compute-1.amazonaws.com	c1.xlarge	running
rails       i-c833f8a1	domU-12-31-39-00-95-11	ec2-75-101-213-58.compute-1.amazonaws.com	c1.xlarge	running
rails       i-4f33f826	domU-12-31-39-00-90-21	ec2-75-101-199-42.compute-1.amazonaws.com	c1.xlarge	running
rails       i-0933f860	domU-12-31-39-00-8D-B1	ec2-75-101-206-32.compute-1.amazonaws.com	c1.xlarge	running
rails       i-cd33f8a4	domU-12-31-39-00-91-61	ec2-75-101-205-227.compute-1.amazonaws.com	c1.xlarge	running
rails       i-3633f85f	domU-12-31-39-00-8C-71	ec2-75-101-195-69.compute-1.amazonaws.com	c1.xlarge	running
rails       i-163cf77f	domU-12-31-39-00-22-21	ec2-67-202-40-157.compute-1.amazonaws.com	m1.xlarge	running
rails       i-3b3df652	domU-12-31-39-00-C0-B7	ec2-75-101-254-200.compute-1.amazonaws.com	m1.small	running

Watch out, though - that particular cluster costs about $6.40/hour to run 
- thats $150 a day, so don't forget about it.  It's unlikely you'll need it, 
even with really crappy Rails apps, that should process a freak-load of requests
per second, it represents about 350 Rails handlers and something like 60 cores.
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