website/functions-src/deploy-succeeded.js

78 lines
2.2 KiB
JavaScript

"use strict";
const
{ IncomingWebhook } = require('@slack/client'),
kubernetesSiteRoot = 'https://kubernetes.io',
fetch = require('node-fetch').default,
{ SLACK_WEBHOOK_URL } = process.env;
const webhook = new IncomingWebhook(SLACK_WEBHOOK_URL);
// A random smattering of Kubernetes documentation pages
// We can add as many pages here as we'd like
const kubernetesEndpoints = [
'docs/home',
'docs/tutorials/configuration/configure-redis-using-configmap',
]
// Ensure that the SLACK_WEBHOOK_URL environment variable is set
const checkEnv = () => {
if (!SLACK_WEBHOOK_URL) {
return {
statusCode: 422,
body: "[FAILURE] The Slack webhook URL must be set via the SLACK_WEBHOOK_URL environment variable"
}
}
}
// This function posts a warning message to Slack
const sendSlackMessage = (msg) => {
const slackMessageObject = {
username: "noindex checker",
text: msg
}
// Send the message to the webhook
webhook.send(slackMessageObject, (err, res) => {
return (err) ? { statusCode: 422, body: `[ERROR] Slack webhook error: ${err}` } :
{ statusCode: 200, body: `[SUCCESS] Response received from Slack: ${JSON.stringify(res)}` };
});
}
// Iterate through each Kubernetes endpoint to check for noindex headers
const checkEndpoints = () => {
kubernetesEndpoints.forEach((endpoint) => {
const url = `${kubernetesSiteRoot}/${endpoint}`;
fetch(url)
.then(res => {
const headers = res.headers;
if ('x-robots-tag' in headers.raw() && (headers.get('x-robots-tag') == 'noindex')) {
const msg = `[WARNING] "X-Robots-Tag: noindex" header found on the following page: ${url}`;
// Send Slack notification
sendSlackMessage(msg);
return { statusCode: 404, body: msg };
} else {
const msg = `[SUCCESS] No improper X-Robots-Tag: noindex headers found on ${url}`;
return { statusCode: 200, body: msg };
}
})
.catch(err => {
return { statusCode: 422, body: err };
});
});
}
// The handler function
exports.handler = async (event, context) => {
checkEnv();
// Below are the various deploy succeeded checks
checkEndpoints();
}