Improve health events relay

devops/tooling/chat-ops/health-events/src/index.mjs

@@ -1,31 +1,83 @@
 import { SNS, PublishCommand } from '@aws-sdk/client-sns';
 
-const sns = new SNS({ region: process.env.AWS_REGION });
+const sns = new SNS({
+  region: process.env.SLACK_MESSAGE_RELAY_SNS_TOPIC_ARN.split(':')[3],
+});
+
+const GREEN = '#2eb886';
+const RED = '#a30200';
+
+function timeSince(date) {
+  let seconds = Math.floor((+new Date() - date) / 1000);
+
+  let interval = seconds / 86400;
+  if (interval > 1) {
+    return Math.floor(interval) + ' days';
+  }
+  interval = seconds / 3600;
+  if (interval > 1) {
+    return Math.floor(interval) + ' hours';
+  }
+  interval = seconds / 60;
+  if (interval > 1) {
+    return Math.floor(interval) + ' minutes';
+  }
+  return Math.floor(seconds) + ' seconds';
+}
 
 export const handler = async (event) => {
-  sns.send(
-    new PublishCommand({
-      TopicArn: process.env.SLACK_MESSAGE_RELAY_SNS_TOPIC_ARN,
-      Message: JSON.stringify({
-        username: 'AWS Health Events',
-        icon_emoji: ':ops-aws-health:',
-        channel: 'G2QHC2N7K', // #ops-warn
-        attachments: [
-          {
-            color: '#a30200',
-            fallback: event.eventArn.eventTypeCode,
-            blocks: [
-              {
-                type: 'section',
-                text: {
-                  type: 'mrkdwn',
-                  text: event.eventArn.eventDescription[0].latestDescription,
-                },
-              },
-            ],
-          },
-        ],
-      }),
+  console.log(
+    JSON.stringify({
+      msg: 'Input event',
+      event,
     }),
   );
+
+  const region = event.detail.eventRegion;
+  const service = event.detail.service;
+  const code = event.detail.eventTypeCode;
+  const category = event.detail.eventTypeCategory;
+  const scope = event.detail.eventScopeCode;
+  const startTs = Date.parse(event.detail.startTime);
+  const status = event.detail.statusCode;
+  const description = event.detail.eventDescription[0].latestDescription;
+
+  if (scope === 'PUBLIC' && category === 'issue') {
+    const color = status === 'closed' ? GREEN : RED;
+
+    await sns.send(
+      new PublishCommand({
+        TopicArn: process.env.SLACK_MESSAGE_RELAY_SNS_TOPIC_ARN,
+        Message: JSON.stringify({
+          username: 'AWS Health Events',
+          icon_emoji: ':ops-aws-health:',
+          // channel: 'G2QHC2N7K', // #ops-warn
+          channel: 'CHZTAGBM2', // #ops-warn
+          attachments: [
+            {
+              color,
+              fallback: event.detail.eventTypeCode,
+              blocks: [
+                {
+                  type: 'section',
+                  text: {
+                    type: 'mrkdwn',
+                    text: [
+                      `*Service:* ${service}`,
+                      `*Region:* ${region}`,
+                      `*Event Code:* ${code}`,
+                      '\n',
+                      `*Started:* ${timeSince(new Date(startTs))} ago`,
+                      '\n',
+                      description,
+                    ].join('\n'),
+                  },
+                },
+              ],
+            },
+          ],
+        }),
+      }),
+    );
+  }
 };