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index.js
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index.js
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const Docker = require("dockerode");
const DockerEE = require("docker-event-emitter");
const axios = require("axios");
const publicIp = require("public-ip");
const mongoose = require("mongoose");
const Settings = require("./models/Settings");
// Mongoose connection
mongoose
.connect(`${process.env.MONGO_URL_STRING}`, {
useNewUrlParser: true,
useUnifiedTopology: true,
})
.then(() => console.log("Successfully connected to DB"))
.catch((err) => console.log(err));
require("dotenv").config();
const checkIfARecordExists = async (key, settings) => {
let exists = false;
const existingRecords = await axios({
method: "GET",
url: `https://api.cloudflare.com/client/v4/zones/${settings.zoneId}/dns_records?name=${key}.${settings.domain.valye}`,
headers: {
"X-Auth-Email": settings.email,
"X-Auth-Key": settings.api,
"Content-Type": "application/json",
},
});
if (existingRecords.data.result.length >= 1) exists = true;
return exists;
};
const addDefaultARecords = async (settings) => {
["auth", "traefik", "ldapadmin"].forEach(async (record) => {
try {
await axios({
method: "POST",
url: `https://api.cloudflare.com/client/v4/zones/${settings.zoneId}/dns_records`,
data: {
type: "A",
name: record,
content: await publicIp.v4(),
ttl: 1,
proxied: false,
},
headers: {
"X-Auth-Email": settings.email,
"X-Auth-Key": settings.api,
"Content-Type": "application/json",
},
});
} catch (e) {
console.log(e);
}
});
};
(async () => {
try {
const docker = new Docker({
socketPath: "/var/run/docker.sock",
});
const events = new DockerEE(docker);
const cloudFlareApi = await Settings.findOne({ name: "cloudflare_global_api" });
const cloudFlareZoneId = await Settings.findOne({ name: "cloudflare_zone_id" });
const cloudFlareEmail = await Settings.findOne({ name: "cloudflare_email" });
const domain = await Settings.findOne({ name: "domain" });
const settings = {
api: cloudFlareApi.value,
zoneId: cloudFlareZoneId.value,
email: cloudFlareEmail.value,
domain,
};
await addDefaultARecords(settings);
events.on("container.create", async (ev) => {
const attributeKeys = Object.keys(ev.Actor.Attributes);
attributeKeys.forEach(async (key) => {
console.log(key);
if (key.startsWith("sb-companion.enabled")) {
if (ev.Actor.Attributes["sb-companion.enabled"] === "true") {
const subdomain = ev.Actor.Attributes["sb-companion.domain"].split(".")[0];
const recordExists = await checkIfARecordExists(subdomain, settings);
if (!recordExists) {
try {
await axios({
method: "POST",
url: `https://api.cloudflare.com/client/v4/zones/${settings.zoneId}/dns_records`,
data: {
type: "A",
name: subdomain,
content: await publicIp.v4(),
ttl: 1,
proxied: false,
},
headers: {
"X-Auth-Email": settings.email,
"X-Auth-Key": settings.api,
"Content-Type": "application/json",
},
});
} catch (e) {
console.log(e);
}
}
}
}
});
});
await events.start();
} catch (err) {
console.log(err);
}
})();