cloud-report
Version:
Collects and analyzes cloud resources
74 lines (73 loc) • 3.53 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const types_1 = require("../../../types");
const base_1 = require("../../base");
class Alb5xxAlarmsAnalyzer extends base_1.BaseAnalyzer {
analyze(params, fullReport) {
const allAlarms = params.alarms;
if (!allAlarms || !fullReport["aws.elb"] || !fullReport["aws.elb"].elbs) {
return undefined;
}
const allELBs = fullReport["aws.elb"].elbs;
const alb_5xx_errors_alarms = { type: types_1.CheckAnalysisType.OperationalExcellence };
alb_5xx_errors_alarms.what = "Are alarms are enabled for ALB 5XX errors?";
alb_5xx_errors_alarms.why = `It is important to set alarms for 5XX Errors
as otherwise you won't be aware when the application is failing`;
alb_5xx_errors_alarms.recommendation = "Recommended to set alarm for 5XX Errors to take appropriative action.";
alb_5xx_errors_alarms.benchmark = ['all'];
const allRegionsAnalysis = {};
for (const region in allELBs) {
const regionELBs = allELBs[region];
const regionAlarms = allAlarms[region];
const alarmsMapByELB = this.mapAlarmsByELB(regionAlarms);
allRegionsAnalysis[region] = [];
for (const elb of regionELBs) {
const alarmAnalysis = {};
const elbAlarms = alarmsMapByELB[this.getLoadBalancerDimensionId(elb.LoadBalancerArn)];
alarmAnalysis.resource = { elb, alarms: elbAlarms };
alarmAnalysis.resourceSummary = {
name: "LoadBalancer",
value: elb.LoadBalancerName,
};
if (this.is5xxAlarmsPresent(elbAlarms)) {
alarmAnalysis.severity = types_1.SeverityStatus.Good;
alarmAnalysis.message = "5XX errors alarms are enabled";
}
else {
alarmAnalysis.severity = types_1.SeverityStatus.Failure;
alarmAnalysis.message = "5XX errors alarms are not enabled";
alarmAnalysis.action = "Set 5XX errors alarms";
}
allRegionsAnalysis[region].push(alarmAnalysis);
}
}
alb_5xx_errors_alarms.regions = allRegionsAnalysis;
return { alb_5xx_errors_alarms };
}
mapAlarmsByELB(alarms) {
return alarms.reduce((alarmsMap, alarm) => {
if (alarm.Namespace === "AWS/ApplicationELB" && alarm.Dimensions) {
const elbDimension = alarm.Dimensions.find((dimension) => {
return dimension.Name === "LoadBalancer";
});
if (elbDimension && elbDimension.Value) {
alarmsMap[elbDimension.Value] = alarmsMap[elbDimension.Value] || [];
alarmsMap[elbDimension.Value].push(alarm);
}
}
return alarmsMap;
}, {});
}
is5xxAlarmsPresent(alarms) {
return alarms && alarms.some((alarm) => {
return alarm.ActionsEnabled &&
alarm.AlarmActions &&
alarm.AlarmActions.length &&
alarm.MetricName.toLowerCase().includes("5xx");
});
}
getLoadBalancerDimensionId(loadBalancerArn) {
return loadBalancerArn.split("/").slice(-3).join("/");
}
}
exports.Alb5xxAlarmsAnalyzer = Alb5xxAlarmsAnalyzer;