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November 12, 2014 | Las Vegas, NV
Thomas Lobinger and Jonathan Weiss, Amazon Web Services
OpsWorks
Backend
OpsWorks
Agent
Amazon EC2, Amazon EBS, EIP,
Amazon VPC, Elastic Load Balancing….
Auto-Scaling, Auto-Healing….
On-instance execution via
Chef client/zero
Command
JSON
Command
Log+Status
Chef Client
&
Chef Server
AWS OpsWorks
recipes
Yourcustomrecipes
search(:node, “name:web1”)
search(:node, “name:web*”)
appserver = search(:node, "role:php-app").first
Chef::Log.info(”Private IP: #{appserver[:private_ip]}")
appserver = search(:node, "role:php-app").first
Chef::Log.info(”Private IP: #{appserver[:private_ip]}")
{"opsworks": {
"data_bags": {"bag_name1": {
"item_name1: {"key1" : “value1”,"key2" : “value2”,...
}},"bag_name2": {
"item_name1": {"key1" : “value1”,"key2" : “value2”,...
}},...
}}
}
{ "opsworks": {
"data_bags": {"myapp": {"mysql": {
"username": "default-user","password": "default-pass"
}}
}}
}
mything = data_bag_item("myapp", "mysql")Chef::Log.info("username: #{mything['username']}")
user = ENV[“payment_provider_user“]password = ENV[“payment_provider_password“]
PaymentGateway.new(user, password)
Change
cookbook
Push
change
Stop an
instance
Update
cookbooks
Start an
instance
Trigger
event or
runlist
Check logs
list_commands
get_json
run_command
show_log
list
# list event history (up to 10 events)
# opsworks-agent-cli list
2014-11-06T10:26:58 setup
2014-11-06T10:55:13 configure
2014-11-06T14:59:05 execute_recipes
2014-11-07T18:25:53 deploy
2014-11-07T18:34:11 configure
2014-11-08T10:05:23 configure
2014-11-08T14:43:43 configure
get
# show JSON events (latest or by type/timestamp)
# opsworks-agent-cli get
{
"ssh_users": {
"2066": {
"name": "thomas",
"public_key": "ssh-rsa AAAAB3NzaC1...",
"sudoer": true
...
# list current agent folder and cookbooks
# ls /opt/aws/opsworks/current
cookbooks # OpsWorks cookbooks
berkshelf-cookbooks # Cookbooks from Berkshelf
site-cookbooks # Your cookbooks
merged-cookbooks # Resulting cookbooks for run
...
run
# run last setup event (changed cookbooks, same JSON)
# opsworks-agent-cli run setup
# or select specific date
# opsworks-agent-cli run 2014-11-08T14:43:43
[2014-11-12 13:06:41] INFO [opsworks-agent(17817)]: About to re-run
'setup' from 2014-11-08T14:43:43
Waiting for process 17817
...
Finished Chef run with exitcode 0
# change recipe
# cd /opt/aws/opsworks/current/site-cookbooks
# vim mycookbooks/recipes/default.rb
# confirm success
# opsworks-agent-cli run setup
# commit back to your git repo
# git commit -am “can develop on instance“
# git push
Destroy Create Converge Setup Verify Destroy
.kitchen.yml
driver:
name: opsworks
stack_id: vvvvvvvv-wwww-xxxx-yyyy-zzzzzzzzzzzz
provisioner:
name: shell
busser:
ruby_bindir: /opt/aws/opsworks/local/bin
.kitchen.yml
platforms:
- name: Amazon Linux 2014.09
- name: Ubuntu 12.04 LTS
- name: Ubuntu 14.04 LTS
suites:
- name: default
run_list:
- recipe[demo::default]
# destroy, create, setup, converge, verify, destroy
kitchen test
kitchen verify [NAME|REGEXP|all] # run all 'tests'
kitchen verify ubuntu # only ubuntus
kitchen verify client # only client tests
kitchen verify -c NUMBER # concurrency
# Talk by Fletcher Nichol http://youtu.be/YzlCHAbJ7KM
‣ attributes
‣ recipes
‣ templates
▾ test
‣ integration
.kitchen.yml
metadata.rb
‣ attributes
‣ recipes
‣ templates
▾ test
▾ integration
‣ default <-- test suite name
.kitchen.yml
metadata.rb
‣ attributes
‣ recipes
‣ templates
▾ test
▾ integration
▾ default <-- test suite name
‣ bats <-- test framework
.kitchen.yml
metadata.rb
‣ attributes
‣ recipes
‣ templates
▾ test
▾ integration
▾ default <-- test suite name
▾ bats <-- test framework
htop_installed.bats <-- the actual test
.kitchen.yml
metadata.rb
Test file htop_installed.bats
#!/usr/bin/env bats
@test "htop binary is found in PATH" {
run which htop
[ "$status" -eq 0 ]
}
5
commit
Stack
on
EC2
$./opsrun.rb 92ca56ec-1672-4db0-8c6e-a8566e7db671 'echo $SHELL'ruby: warning: RUBY_HEAP_MIN_SLOTS is obsolete. UseRUBY_GC_HEAP_INIT_SLOTS instead.About to run a script on stack 92ca56ec-1672-4db0-8c6e-a8566e7db671 on 2 online instances......jenkins2:/bin/bashphp-app1:/bin/bash$
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