aws-delivlib
Version:
A fabulous library for defining continuous pipelines for building, testing and releasing code libraries.
90 lines • 12.1 kB
JavaScript
;
// eslint-disable-next-line import/no-extraneous-dependencies
Object.defineProperty(exports, "__esModule", { value: true });
exports.handler = exports.cloudwatch = void 0;
// eslint-disable-next-line import/no-extraneous-dependencies
const client_cloudwatch_1 = require("@aws-sdk/client-cloudwatch");
// export for tests
exports.cloudwatch = new client_cloudwatch_1.CloudWatch();
const logger = {
log: (line) => process.stdout.write(line),
};
/**
* Lambda function that reacts to an Amazon EventBridge event triggered by a 'CodePipeline Action Execution State Change'.
* The handler reads the event and sends off metrics to CloudWatch.
*/
async function handler(event) {
logger.log(`Received event: ${JSON.stringify(event)}`);
switch (event['detail-type']) {
case 'CodePipeline Pipeline Execution State Change':
await handleExecutionChange(event);
break;
case 'CodePipeline Action Execution State Change':
await handleActionChange(event);
break;
default: throw new Error(`Unhandled detail type ${event['detaill-type']}`);
}
}
exports.handler = handler;
async function handleExecutionChange(event) {
const pipelineName = event.detail.pipeline;
const state = event.detail.state;
let value;
switch (state) {
case 'FAILED':
value = 1;
break;
case 'SUCCEEDED':
value = 0;
break;
default: throw new Error(`Unsupported state: ${state}. Only FAILED and SUCCEEDED states are supported. ` +
'Others must be filtered out prior to this function.');
}
await putMetric(event, value, [
{ Name: 'Pipeline', Value: pipelineName },
]);
logger.log('Done');
}
async function handleActionChange(event) {
const pipelineName = event.detail.pipeline;
const action = event.detail.action;
const state = event.detail.state;
let value;
switch (state) {
case 'FAILED':
value = 1;
break;
case 'SUCCEEDED':
value = 0;
break;
default: throw new Error(`Unsupported state: ${state}. Only FAILED and SUCCEEDED states are supported. ` +
'Others must be filtered out prior to this function.');
}
await putMetric(event, value, [
{ Name: 'Pipeline', Value: pipelineName },
{ Name: 'Action', Value: action },
]);
logger.log('Done');
}
async function putMetric(event, value, dimensions) {
const metricNamespace = process.env.METRIC_NAMESPACE;
const metricName = process.env.METRIC_NAME;
const time = new Date(event.time);
if (!metricNamespace || !metricName) {
throw new Error('Both METRIC_NAMESPACE and METRIC_NAME environment variables must be set.');
}
const input = {
Namespace: metricNamespace,
MetricData: [
{
MetricName: metricName,
Value: value,
Dimensions: dimensions,
Timestamp: time,
},
],
};
logger.log(`Calling PutMetricData with payload: ${JSON.stringify(input)}`);
await exports.cloudwatch.putMetricData(input);
}
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break;\n    case 'CodePipeline Action Execution State Change': await handleActionChange(event); break;\n    default: throw new Error(`Unhandled detail type ${event['detaill-type']}`);\n  }\n}\n\nasync function handleExecutionChange(event: LambdaExecutionStateChangeEvent) {\n  const pipelineName = event.detail.pipeline;\n  const state = event.detail.state;\n\n  let value: number;\n  switch (state) {\n    case 'FAILED': value = 1; break;\n    case 'SUCCEEDED': value = 0; break;\n    default: throw new Error(`Unsupported state: ${state}. Only FAILED and SUCCEEDED states are supported. ` +\n    'Others must be filtered out prior to this function.');\n  }\n\n  await putMetric(event, value, [\n    { Name: 'Pipeline', Value: pipelineName },\n  ]);\n\n  logger.log('Done');\n}\n\n\nasync function handleActionChange(event: LambdaActionStateChangeEvent) {\n  const pipelineName = event.detail.pipeline;\n  const action = event.detail.action;\n  const state = event.detail.state;\n\n  let value: number;\n  switch (state) {\n    case 'FAILED': value = 1; break;\n    case 'SUCCEEDED': value = 0; break;\n    default: throw new Error(`Unsupported state: ${state}. Only FAILED and SUCCEEDED states are supported. ` +\n    'Others must be filtered out prior to this function.');\n  }\n\n  await putMetric(event, value, [\n    { Name: 'Pipeline', Value: pipelineName },\n    { Name: 'Action', Value: action },\n  ]);\n\n  logger.log('Done');\n}\n\nasync function putMetric(event: EventType, value: number, dimensions: Array<Dimension>) {\n  const metricNamespace = process.env.METRIC_NAMESPACE;\n  const metricName = process.env.METRIC_NAME;\n  const time = new Date(event.time);\n\n  if (!metricNamespace || !metricName) {\n    throw new Error('Both METRIC_NAMESPACE and METRIC_NAME environment variables must be set.');\n  }\n\n  const input: PutMetricDataCommandInput = {\n    Namespace: metricNamespace,\n    MetricData: [\n      {\n        MetricName: metricName,\n        Value: value,\n        Dimensions: dimensions,\n        Timestamp: time,\n      },\n    ],\n  };\n\n  logger.log(`Calling PutMetricData with payload: ${JSON.stringify(input)}`);\n\n  await cloudwatch.putMetricData(input);\n}"]}