Create log metrics filter w/ cli

deploy_metrics_filter.sh

# Stupid CloudFormation doesn't support this right now
TeaStackName=<TEA>-UAT-TEA
TeaLambdaName=$(aws cloudformation describe-stacks  --query "Stacks[?StackName=='$TeaStackName'].Outputs" | jq -r '.[][] | select ( .OutputKey == "EgressLambdaName" ).OutputValue')
TeaLambdaLogFileName=$(echo -n "/aws/lambda/$TeaLambdaName")

dimensions='dimensions={service=$.message.timing.service}'
transformation=$(echo metricName=duration,metricNamespace=TEA,metricValue='$.message.timing.duration',$dimensions,unit=Milliseconds)

aws logs put-metric-filter \
        --log-group-name $TeaLambdaLogFileName \
        --filter-name TEATimingByService \
        --filter-pattern '{ $.message.timing.service != "" }' \
        --metric-transformations $transformation