Add lita-aws to your Lita instance's Gemfile:

gem 'lita-aws'

1. AWS-CLI must be installed, make sure your lita user can execute aws.

• lita-aws support multiple aws accounts, configurating through aws-cli, you can use following commands to manage aws accounts.

(lita) aws profile

(lita) aws profile [profile_name] [region] [api_key] [secret_key]

• profile_name: Only accept lower letter and numbers. default will set to aws-cli default profile.
• region: AWS region, such as: ap-northeast-1
• api_key: AWS access key id.
• secret_key: AWS secret access key.

Example:

(lita) aws profile 5fpro ap-northeast-1 abcdefg ababcdcd

# with default profile
(lita) aws account-id
# with specific profile
(lita) aws account-id --profile {profile_name}
# Example:
(lita) aws account-id --profile 5fpro

(lita) aws-cli ec2 describe-instances --page-size 10 --profile {profile_name}

That will execute as command line:

aws ec2 describe-instances --page-size 10 --profile {profile_name}

and return json.

• lita-aws provide customized commands for re-composing json data and formatting output to human-readable response. All of these customized command will use aws as command prefix.

• Here is the exmaple to get cloudwatch data:

• Get EC2 instance memory utilization from Cloudwatch.

(lita) aws ec2-memutil {Instance ID} --ago 2d --cal Average --period 300s --profile {profile_name}

output:

2017-02-26T16:00:00Z : 45.56%
2017-02-26T16:05:00Z : 39.58%
2017-02-26T16:10:00Z : 39.32%
2017-02-26T16:15:00Z : 39.33%
2017-02-26T16:20:00Z : 39.55%
2017-02-26T16:25:00Z : 39.65%
2017-02-26T16:30:00Z : 39.72%
2017-02-26T16:35:00Z : 39.69%
2017-02-26T16:40:00Z : 39.68%
2017-02-26T16:45:00Z : 39.69%
2017-02-26T16:50:00Z : 39.68%
2017-02-26T16:55:00Z : 39.71%

options:

• ago: 2d means get 2 days ago data. Currently, the unit only d as day.
• period: 300s means each data contains 300 seconds.
• cal: Averages means each period data will calculate its average as output value. To see more values http://docs.aws.amazon.com/cli/latest/reference/cloudwatch/get-metric-statistics.html and find --statistics.

(lita) help aws
# or
(lita) help aws elb
(lita) help aws ec2
(lita) help aws rds
....

• For Mac OS users, if you try to type double dash (i.e. --) on Slack messasge input field, it would auto convert to emdash (i.e. —), please disable it. (Ref: http://superuser.com/questions/555628/how-to-stop-mac-to-convert-typing-double-dash-to-emdash)