AWS cheatsheet

addArecord.sh

HOST_ZONE_ID=
ACTION=
DNS_NAME=

# Add A record for s3 website hosting using custom domain
# Ref: http://docs.aws.amazon.com/AmazonS3/latest/dev/website-hosting-custom-domain-walkthrough.html
aws route53 change-resource-record-sets --hosted-zone-id $HOST_ZONE_ID --change-batch "{
	\"Changes\": [{
		\"Action\": \"$ACTION\",
		\"ResourceRecordSet\": {
			\"Name\": \"$DNS_NAME\",
			\"Type\": \"A\",
			\"AliasTarget\": {
				\"HostedZoneId\": \"Z3O0J2DXBE1FTB\",
				\"DNSName\": \"s3-website-ap-southeast-1.amazonaws.com\",
				\"EvaluateTargetHealth\": false
			}
		}
	}]
}"

createDistribution.sh

# Create Distribution at Clourfront

S3_BUCKET=
CNAME_DOMAIN=

echo $(aws cloudfront create-distribution --distribution-config "{
    \"PriceClass\": \"PriceClass_100\",
    \"CallerReference\": \"my-distribution-$S3_BUCKET\",
    \"Aliases\": {
          \"Quantity\": 2,
          \"Items\": [\"$CNAME_DOMAIN\", \"$S3_BUCKET\"]
    },
    \"Origins\": {
          \"Quantity\": 1,
          \"Items\": [{
              \"Id\": \"my-origin\",
              \"DomainName\": \"$S3_BUCKET.s3.amazonaws.com\",
              \"S3OriginConfig\": {
                  \"OriginAccessIdentity\": \"\"
              }
          }]
      },
    \"DefaultCacheBehavior\": {
          \"TargetOriginId\": \"my-origin\",
          \"ForwardedValues\": {
              \"QueryString\": true,
              \"Cookies\": {
                  \"Forward\": \"none\"
              }
          },
          \"TrustedSigners\": {
              \"Enabled\": false,
              \"Quantity\": 0
          },
          \"ViewerProtocolPolicy\": \"allow-all\",
          \"MinTTL\": 60
      },
    \"Comment\": \"\",
    \"Enabled\": true
}" | jq -r '.Distribution.DomainName')

ecsZeroConfig.md

...will request refreshable credentials from the relative URI specified by the AWS_CONTAINER_CREDENTIALS_RELATIVE_URI or the AWS_CONTAINER_CREDENTIALS_FULL_URI environment variable. If valid credentials are returned in the response, these will be used with zero configuration.

Ref: http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/ECSCredentials.html

getIdentity.md

Get Identity

Get current user identity.

CLI

aws sts get-caller-identity

Node.js

require('aws-sdk').STS().getCallerIdentity({}, function(err, data) { console.log(data); });

putMetricData.md

Put Metric Data

Put metric data to AWS CloudWatch

CLI

aws cloudwatch put-metric-data \
    --region "ap-southeast-1" \
    --metric-name [project-name] \
    --dimensions Instance=[instance-id]
    --namespace "Page View Count" \
    --unit Count \
    --value 1

Node.js

require('aws-sdk').CloudWatch().putMetricData({
    MetricData: [{
        MetricName: [project-name],
        Dimensions: [
            {
                Name: 'Instance',
                Value: [instance-id]
            }
        ],
        Unit: 'Count',
        Value: 1
    }],
    Namespace: 'Page View Count'
}, (err, data) => {
    if (err) {
        console.log(err, err.stack);
    } else {
        console.log(data);
    }
});