aws-ec2-handler.js

const AWS = require('aws-sdk');

AWS.config.update({region: process.env.AWS_REGION});

// Create EC2 service object
const ec2 = new AWS.EC2({apiVersion: '2016-11-15'});

const params = {
  InstanceIds: [ 'i-xxxxxxx' ],
  DryRun: false
};

exports.handler = async (event) => {
    console.log('event.body', event.body);
    const path = event.path;
    
    console.log('event.path', event.path);
    
    const buildResponse = (res) => ({
        statusCode: 200,
        body: typeof res === 'string' ? res : JSON.stringify(res),
    });

    switch (event.httpMethod) {
        case 'GET':
            return buildResponse('Success GET');

        case 'POST':
            if (path === '/ec2-slack-ctrl') {
                return buildResponse({ 
                    attachments: [
                        { title: 'EC2 Controller', callback_id: 'ctl_ec2', text: '호스트별 SELECT & 동작 선택',
                          actions: [
                             {
                                "name": "ec2test",
                                "text": "EC2 - TEST",
                                "type": "select",
                                "options": [
                                    {
                                        "text": "Start",
                                        "value": "Start"
                                    },
                                    {
                                         "text": "Stop",
                                        "value": "Stop"
                                    }
                                    
                                ]
                            },
                            
                            ] 
                        }]
                     });
            } 
            if (path === '/ec2-slack-ctrl/interactive') 
            { 
                const body = JSON.parse(decodeURIComponent(event.body).replace('payload=', '')); 
                
                console.log("응답 결과 :" + JSON.stringify(body));
                
                if (body.callback_id === 'ctl_ec2') 
                {                     
                    const hostId = body.actions[0].name;
                    const action = body.actions[0].selected_options[0].value;
                    
                    if(action =="Stop")
                    {
                        await ec2.stopInstances(params, function(err, data) {
                        if (err) {
                            console.log("Error", err);
                        } else if (data) {
                            console.log(data);
                            console.log("Success", data.StoppingInstances);
                        }
                        }).promise();
                        
                    
                    }else if(action =="Start")
                    {
                        
                         await ec2.startInstances(params, function(err, data) {
                        if (err) {
                            console.log("Error", err);
                        } else if (data) {
                            console.log(data);
                            console.log("Success", data.StartingInstances);
                            
                        }
                        }).promise();
                        
                    }
                    return buildResponse(`* 응답 결과:  :computer:${hostId}* *${action}* `); 
                } 
            }
    } return { statusCode: 400, body: 'unknown httpMethod', };
};