@renovosolutions/cdk-library-cloudwatch-alarms
Version:
AWS CDK Construct Library to automatically create CloudWatch Alarms for resources in a CDK app based on resource type.
159 lines • 24.5 kB
JavaScript
;
var _a, _b, _c, _d;
Object.defineProperty(exports, "__esModule", { value: true });
exports.VpnRecommendedAlarmsAspect = exports.VpnConnection = exports.VpnConnectionRecommendedAlarms = exports.VpnConnectionTunnelStateAlarm = exports.VpnRecommendedAlarmsMetrics = void 0;
const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
const aws_cdk_lib_1 = require("aws-cdk-lib");
const constructs_1 = require("constructs");
const common_1 = require("./common");
/**
* The recommended metrics for VPN alarms.
*/
var VpnRecommendedAlarmsMetrics;
(function (VpnRecommendedAlarmsMetrics) {
/**
* Percentage of how close a file system is to reaching the I/O limit of the General Purpose
* performance mode.
*/
VpnRecommendedAlarmsMetrics["TUNNEL_STATE"] = "TunnelState";
})(VpnRecommendedAlarmsMetrics || (exports.VpnRecommendedAlarmsMetrics = VpnRecommendedAlarmsMetrics = {}));
/**
* This alarm helps you understand if the state of one or more tunnels is DOWN.
*
* For troubleshooting, see VPN tunnel troubleshooting.
*
* The alarm is triggered when the monitored value is less than 1.
*/
class VpnConnectionTunnelStateAlarm extends aws_cdk_lib_1.aws_cloudwatch.Alarm {
constructor(scope, id, props) {
const alarmName = props.alarmName ?? `${props.vpnConnection.ref} - ${VpnRecommendedAlarmsMetrics.TUNNEL_STATE}`;
const period = props.period ?? aws_cdk_lib_1.Duration.minutes(5);
const evaluationPeriods = props.evaluationPeriods ?? 3;
const datapointsToAlarm = props.datapointsToAlarm ?? 3;
const threshold = props.threshold ?? 1;
const treatMissingData = props.treatMissingData ?? aws_cdk_lib_1.aws_cloudwatch.TreatMissingData.MISSING;
const alarmDescription = props.alarmDescription ?? 'This alarm is used to detect if at least one tunnel is in the DOWN state for this VPN,'
+ ' so that you can troubleshoot the impacted VPN. This alarm will always be in the ALARM state for networks that only have a single tunnel configured.';
(0, common_1.validateTotalAlarmPeriod)(period, evaluationPeriods, alarmName);
super(scope, id, {
alarmName,
metric: new aws_cdk_lib_1.aws_cloudwatch.Metric({
namespace: 'AWS/VPN',
metricName: VpnRecommendedAlarmsMetrics.TUNNEL_STATE,
dimensionsMap: {
VpnId: props.vpnConnection.ref,
},
period,
statistic: 'Minimum',
}),
threshold,
evaluationPeriods,
datapointsToAlarm,
treatMissingData,
comparisonOperator: aws_cdk_lib_1.aws_cloudwatch.ComparisonOperator.LESS_THAN_THRESHOLD,
alarmDescription,
});
if (props.alarmAction)
this.addAlarmAction(props.alarmAction);
if (props.okAction)
this.addOkAction(props.okAction);
if (props.insufficientDataAction)
this.addInsufficientDataAction(props.insufficientDataAction);
}
}
exports.VpnConnectionTunnelStateAlarm = VpnConnectionTunnelStateAlarm;
_a = JSII_RTTI_SYMBOL_1;
VpnConnectionTunnelStateAlarm[_a] = { fqn: "@renovosolutions/cdk-library-cloudwatch-alarms.VpnConnectionTunnelStateAlarm", version: "0.0.13" };
;
/**
* A construct that creates the recommended alarms for an VpnConnection.
*
* @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN
*/
class VpnConnectionRecommendedAlarms extends constructs_1.Construct {
constructor(scope, id, props) {
super(scope, id);
if (!props.excludeAlarms?.includes(VpnRecommendedAlarmsMetrics.TUNNEL_STATE)) {
this.alarmTunnelState = new VpnConnectionTunnelStateAlarm(this, `${props.vpnConnection.node.id}_TunnelState`, {
vpnConnection: props.vpnConnection,
treatMissingData: props.treatMissingData,
...props.configTunnelStateAlarm,
});
if (props.defaultAlarmAction &&
(!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.alarmAction)) {
this.alarmTunnelState.addAlarmAction(props.defaultAlarmAction);
}
if (props.defaultOkAction &&
(!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.okAction)) {
this.alarmTunnelState.addOkAction(props.defaultOkAction);
}
if (props.defaultInsufficientDataAction &&
(!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.insufficientDataAction)) {
this.alarmTunnelState.addInsufficientDataAction(props.defaultInsufficientDataAction);
}
}
}
}
exports.VpnConnectionRecommendedAlarms = VpnConnectionRecommendedAlarms;
_b = JSII_RTTI_SYMBOL_1;
VpnConnectionRecommendedAlarms[_b] = { fqn: "@renovosolutions/cdk-library-cloudwatch-alarms.VpnConnectionRecommendedAlarms", version: "0.0.13" };
/**
* An extension for the CfnVPNConnection construct that provides methods
* to create recommended alarms.
*/
class VpnConnection extends aws_cdk_lib_1.aws_ec2.CfnVPNConnection {
constructor(scope, id, props) {
super(scope, id, props);
}
/**
* Creates an alarm that monitors the TunnelState for the VPN vpnConnection.
*/
alarmTunnelState(props) {
return new VpnConnectionTunnelStateAlarm(this, 'TunnelStateAlarm', {
vpnConnection: this,
...props,
});
}
/**
* Creates the recommended alarms for the VpnConnection.
*
* @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN
*/
applyRecommendedAlarms(props) {
return new VpnConnectionRecommendedAlarms(this, 'VpnConnectionRecommendedAlarms', {
vpnConnection: this,
...props,
});
}
}
exports.VpnConnection = VpnConnection;
_c = JSII_RTTI_SYMBOL_1;
VpnConnection[_c] = { fqn: "@renovosolutions/cdk-library-cloudwatch-alarms.VpnConnection", version: "0.0.13" };
/**
* Configures the recommended alarms for an VpnConnection.
*
* @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN
*/
class VpnRecommendedAlarmsAspect {
constructor(props) {
this.props = props;
}
visit(node) {
if (node instanceof aws_cdk_lib_1.aws_ec2.CfnVPNConnection) {
if (this.props?.excludeResources && this.props.excludeResources.includes(node.node.id)) {
return;
}
else {
const vpnConnection = node;
new VpnConnectionRecommendedAlarms(vpnConnection, 'VpnConnectionRecommendedAlarmsFromAspect', {
vpnConnection,
...this.props,
});
}
}
}
}
exports.VpnRecommendedAlarmsAspect = VpnRecommendedAlarmsAspect;
_d = JSII_RTTI_SYMBOL_1;
VpnRecommendedAlarmsAspect[_d] = { fqn: "@renovosolutions/cdk-library-cloudwatch-alarms.VpnRecommendedAlarmsAspect", version: "0.0.13" };
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{\n  IAspect,\n  aws_ec2 as ec2,\n  aws_cloudwatch as cloudwatch,\n  Duration,\n} from 'aws-cdk-lib';\nimport { Construct, IConstruct } from 'constructs';\nimport { AlarmBaseProps, validateTotalAlarmPeriod } from './common';\n\n/**\n * The recommended metrics for VPN alarms.\n */\nexport enum VpnRecommendedAlarmsMetrics {\n  /**\n   * Percentage of how close a file system is to reaching the I/O limit of the General Purpose\n   * performance mode.\n   */\n  TUNNEL_STATE = 'TunnelState',\n}\n\n/**\n * The common optional configuration for the alarms.\n */\nexport interface VpnAlarmBaseConfig extends AlarmBaseProps {\n  /**\n   * The period over which the specified statistic is applied.\n   *\n   * @default Duration.minutes(5)\n   */\n  readonly period?: Duration;\n}\n\n/**\n * The common properties for the VpnConnection alarms.\n */\nexport interface VpnConnectionAlarmProps {\n  /**\n   * The VpnConnection to monitor.\n   */\n  readonly vpnConnection: ec2.CfnVPNConnection;\n}\n\n/**\n * Configuration for the TunnelState alarm.\n */\nexport interface VpnTunnelStateAlarmConfig extends VpnAlarmBaseConfig {\n  /**\n   * A value less than 1 indicates that at least one tunnel is in DOWN state.\n   *\n   * @default 1\n   */\n  readonly threshold?: number;\n  /**\n   * The number of periods over which data is compared to the specified threshold.\n   *\n   * @default 3\n   */\n  readonly evaluationPeriods?: number;\n  /**\n   * The number of data points that must be breaching to trigger the alarm.\n   *\n   * @default 3\n   */\n  readonly datapointsToAlarm?: number;\n  /**\n   * The alarm name.\n   *\n   * @default - vpnConnectionId + ' - TunnelState'\n   */\n  readonly alarmName?: string;\n  /**\n   * The description of the alarm.\n   *\n   * @default - This alarm is used to detect if at least one tunnel is in the DOWN state for this VPN, so that you can troubleshoot\n   * the impacted VPN. This alarm will always be in the ALARM state for networks that only have a single tunnel configured.\n   */\n  readonly alarmDescription?: string;\n}\n\n/**\n * The properties for the VpnConnectionTunnelStateAlarm construct.\n */\nexport interface VpnConnectionTunnelStateAlarmProps extends VpnConnectionAlarmProps, VpnTunnelStateAlarmConfig {}\n\n/**\n * This alarm helps you understand if the state of one or more tunnels is DOWN.\n *\n * For troubleshooting, see VPN tunnel troubleshooting.\n *\n * The alarm is triggered when the monitored value is less than 1.\n */\nexport class VpnConnectionTunnelStateAlarm extends cloudwatch.Alarm {\n  constructor(scope: IConstruct, id: string, props: VpnConnectionTunnelStateAlarmProps) {\n    const alarmName = props.alarmName ?? `${props.vpnConnection.ref} - ${VpnRecommendedAlarmsMetrics.TUNNEL_STATE}`;\n    const period = props.period ?? Duration.minutes(5);\n    const evaluationPeriods = props.evaluationPeriods ?? 3;\n    const datapointsToAlarm = props.datapointsToAlarm ?? 3;\n    const threshold = props.threshold ?? 1;\n    const treatMissingData = props.treatMissingData ?? cloudwatch.TreatMissingData.MISSING;\n    const alarmDescription = props.alarmDescription ?? 'This alarm is used to detect if at least one tunnel is in the DOWN state for this VPN,'\n      + ' so that you can troubleshoot the impacted VPN. This alarm will always be in the ALARM state for networks that only have a single tunnel configured.';\n\n    validateTotalAlarmPeriod(period, evaluationPeriods, alarmName);\n\n    super(scope, id, {\n      alarmName,\n      metric: new cloudwatch.Metric({\n        namespace: 'AWS/VPN',\n        metricName: VpnRecommendedAlarmsMetrics.TUNNEL_STATE,\n        dimensionsMap: {\n          VpnId: props.vpnConnection.ref,\n        },\n        period,\n        statistic: 'Minimum',\n      }),\n      threshold,\n      evaluationPeriods,\n      datapointsToAlarm,\n      treatMissingData,\n      comparisonOperator: cloudwatch.ComparisonOperator.LESS_THAN_THRESHOLD,\n      alarmDescription,\n    });\n\n    if (props.alarmAction) this.addAlarmAction(props.alarmAction);\n    if (props.okAction) this.addOkAction(props.okAction);\n    if (props.insufficientDataAction) this.addInsufficientDataAction(props.insufficientDataAction);\n  }\n};\n\n/**\n * Configurations for the recommended alarms for an VPN Service.\n *\n * Default actions are overridden by the actions specified in the\n * individual alarm configurations.\n */\nexport interface VpnConnectionRecommendedAlarmsConfig {\n  /**\n   * The default action to take when an alarm is triggered.\n   *\n   * @default - None\n   */\n  readonly defaultAlarmAction?: cloudwatch.IAlarmAction;\n  /**\n   * The default action to take when an alarm enters the ok state.\n   *\n   * @default - None\n   */\n  readonly defaultOkAction?: cloudwatch.IAlarmAction;\n  /**\n   * The default action to take when an alarm has insufficient data.\n   *\n   * @default - None\n   */\n  readonly defaultInsufficientDataAction?: cloudwatch.IAlarmAction;\n  /**\n   * How to handle missing data for this alarm.\n   *\n   * @default TreatMissingData.MISSING\n   */\n  readonly treatMissingData?: cloudwatch.TreatMissingData;\n  /**\n   * Alarm metrics to exclude from the recommended alarms.\n   *\n   * @default - None\n   */\n  readonly excludeAlarms?: VpnRecommendedAlarmsMetrics[];\n  /**\n   * The resources to exclude from the recommended alarms.\n   *\n   * Use a resources id to exclude a specific resource.\n   */\n  readonly excludeResources?: string[];\n  /**\n   * The configuration for the TunnelState alarm.\n   */\n  readonly configTunnelStateAlarm?: VpnTunnelStateAlarmConfig;\n}\n\n/**\n * Properties for the VpnConnectionRecommendedAlarms construct.\n */\nexport interface VpnConnectionRecommendedAlarmsProps extends VpnConnectionRecommendedAlarmsConfig {\n  /**\n   * The VpnConnection to monitor.\n   */\n  readonly vpnConnection: ec2.CfnVPNConnection;\n}\n\n/**\n * A construct that creates the recommended alarms for an VpnConnection.\n *\n * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN\n */\nexport class VpnConnectionRecommendedAlarms extends Construct {\n  /**\n   * The TunnelState alarm.\n   */\n  public readonly alarmTunnelState?: VpnConnectionTunnelStateAlarm;\n\n  constructor(scope: Construct, id: string, props: VpnConnectionRecommendedAlarmsProps) {\n    super(scope, id);\n\n    if (!props.excludeAlarms?.includes(VpnRecommendedAlarmsMetrics.TUNNEL_STATE)) {\n      this.alarmTunnelState = new VpnConnectionTunnelStateAlarm(this, `${props.vpnConnection.node.id}_TunnelState`, {\n        vpnConnection: props.vpnConnection,\n        treatMissingData: props.treatMissingData,\n        ...props.configTunnelStateAlarm,\n      });\n\n      if (\n        props.defaultAlarmAction &&\n        (!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.alarmAction)\n      ) {\n        this.alarmTunnelState.addAlarmAction(props.defaultAlarmAction);\n      }\n\n      if (\n        props.defaultOkAction &&\n        (!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.okAction)\n      ) {\n        this.alarmTunnelState.addOkAction(props.defaultOkAction);\n      }\n\n      if (\n        props.defaultInsufficientDataAction &&\n        (!props.configTunnelStateAlarm || !props.configTunnelStateAlarm.insufficientDataAction)\n      ) {\n        this.alarmTunnelState.addInsufficientDataAction(props.defaultInsufficientDataAction);\n      }\n    }\n  }\n}\n\n/**\n * An extension for the CfnVPNConnection construct that provides methods\n * to create recommended alarms.\n */\nexport class VpnConnection extends ec2.CfnVPNConnection {\n  constructor(scope: Construct, id: string, props: ec2.CfnVPNConnectionProps) {\n    super(scope, id, props);\n  }\n\n  /**\n   * Creates an alarm that monitors the TunnelState for the VPN vpnConnection.\n   */\n  public alarmTunnelState(props?: VpnTunnelStateAlarmConfig): VpnConnectionTunnelStateAlarm {\n    return new VpnConnectionTunnelStateAlarm(this, 'TunnelStateAlarm', {\n      vpnConnection: this,\n      ...props,\n    });\n  }\n\n  /**\n   * Creates the recommended alarms for the VpnConnection.\n   *\n   * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN\n   */\n  public applyRecommendedAlarms(props?: VpnConnectionRecommendedAlarmsConfig): VpnConnectionRecommendedAlarms {\n    return new VpnConnectionRecommendedAlarms(this, 'VpnConnectionRecommendedAlarms', {\n      vpnConnection: this,\n      ...props,\n    });\n  }\n}\n\n/**\n * Configures the recommended alarms for an VpnConnection.\n *\n * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Best_Practice_Recommended_Alarms_AWS_Services.html#VPN\n */\nexport class VpnRecommendedAlarmsAspect implements IAspect {\n  constructor(private readonly props?: VpnConnectionRecommendedAlarmsConfig) {}\n\n  public visit(node: IConstruct): void {\n    if (node instanceof ec2.CfnVPNConnection) {\n      if (this.props?.excludeResources && this.props.excludeResources.includes(node.node.id)) {\n        return;\n      } else {\n        const vpnConnection = node as ec2.CfnVPNConnection;\n\n        new VpnConnectionRecommendedAlarms(vpnConnection, 'VpnConnectionRecommendedAlarmsFromAspect', {\n          vpnConnection,\n          ...this.props,\n        });\n      }\n    }\n  }\n}\n"]}