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futoase/put-process-status.sh

Forked from michimani/put-process-status.sh
Created March 15, 2019 05:59
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  1. michimani created this gist May 23, 2018.
    47 changes: 47 additions & 0 deletions put-process-status.sh
    View file
    Original file line number Diff line number Diff line change
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    ###################################################################################
    # check process aliving (count process number)
    # return integer 1 (process is running) or 0 (process is dead) or 9 (some error)
    ###################################################################################
    function is_process_alive() {
    count=`ps awux | grep -v grep | grep -v "$0" | grep -w "$1" | wc -l`
    if [[ $count =~ ^[0-9]+$ ]]; then
    if [ $count != 0 ]; then
    echo 1
    else
    echo 0
    fi
    else
    echo 9
    fi
    }

    ## instance config
    readonly INSTANCE_ID=`curl -s http://169.254.169.254/latest/meta-data/instance-id`
    readonly REGION='ap-northeast-1'

    ## config
    readonly NAMESPACE='CustomMetrics'
    readonly UNIT='Count'
    if [ $# -ne 1 ]; then
    echo '[ERROR] invalid paramter'
    exit 1;
    fi

    process_name=$1
    if [ $process_name = '' ]; then
    echo '[ERROR] process name is required'
    exit 1;
    fi

    metrics_name="process/$process_name"

    ## process count
    value=`is_process_alive $@`

    if [ $value -ne 1 ] && [ $value -ne 0 ]; then
    echo '[ERROR] failed to count process number'
    exit 1;
    fi

    ## put data to CloudWatch
    aws cloudwatch put-metric-data --metric-name $metrics_name --namespace $NAMESPACE --value $value --region $REGION --unit $UNIT --dimensions "InstanceId=$INSTANCE_ID,ProcessName=$process_name"