add docker-compose, open port in firewall

src/docker.ts

@@ -60,4 +60,11 @@ export class DockerContainer {
       ip: dataRaw[6],
     }
   }
+
+  async setOpenFirewallPort(port: number) {
+    const {exitCode: exit0} = await this.exec(`iptables -A INPUT -i tun0 -p tcp --dport ${port} -j ACCEPT`);
+    const {exitCode: exit1} = await this.exec(`iptables -A INPUT -i tun0 -p udp --dport ${port} -j ACCEPT`);
+
+    return exit0 === 0 && exit1 === 0;
+  }
 }

src/set-port-flow.ts

@@ -20,8 +20,14 @@ export async function setPortFlow() {
     settings.dockerTransmission.cwd,
     settings.dockerTransmission.serviceName
   );
+  const gluetunContainer = new DockerContainer(
+    settings.dockerGluetun.service,
+    settings.dockerGluetun.cwd,
+    settings.dockerGluetun.serviceName
+  );
+
   try {
-    await doSetPortFlow(transmissionClient, transmissionContainer);
+    await doSetPortFlow(transmissionClient, transmissionContainer, gluetunContainer);
   } catch (e) {
     console.error('Error in set port flow', e);
     await downTransmission(transmissionContainer, `Shutting down: error in set port flow.`);
@@ -29,7 +35,7 @@ export async function setPortFlow() {
   await dailyCheckIn();
 }
 
-async function doSetPortFlow(transmissionClient: Transmission, transmissionContainer: DockerContainer) {
+async function doSetPortFlow(transmissionClient: Transmission, transmissionContainer: DockerContainer, gluetunContainer: DockerContainer) {
   console.log('Starting set port flow');
 
   const containerState = await transmissionContainer.getState();
@@ -102,6 +108,14 @@ async function doSetPortFlow(transmissionClient: Transmission, transmissionConta
   }
 
   console.log(`Setting port to ${newPort}`);
+  const resultOK = await gluetunContainer.setOpenFirewallPort(newPort);
+  if (!resultOK) {
+    return await downTransmission(
+      transmissionContainer,
+      `Shutting down: could not open new port in gluetun firewall`,
+    );
+  }
+  console.log(`Port in gluetun firewall opened successfully`);
   await transmissionClient.setPort(newPort);
 
   const numPortsChanged = kvDataStorage.get<number>('numPortsChanged') || 0;

src/settings.ts

@@ -1,5 +1,5 @@
 import dotenv from 'dotenv';
-dotenv.config();
+dotenv.config({ path: '.env.app'});
 
 export const settings = {
   ipInfoCommand: `curl ${process.env.IP_INFO_URL ?? 'https://ipinfo.io'}`,
@@ -13,6 +13,11 @@ export const settings = {
     service: process.env.DOCKER_TRANSMISSION_SERVICE ?? 'transmission',
     serviceName: process.env.DOCKER_TRANSMISSION_SERVICE_NAME ?? process.env.DOCKER_TRANSMISSION_SERVICE,
   },
+  dockerGluetun: {
+    cwd: process.env.DOCKER_GLUETUN_CWD ?? __dirname,
+    service: process.env.DOCKER_GLUETUN_SERVICE ?? 'gluetun',
+    serviceName: process.env.DOCKER_GLUETUN_SERVICE_NAME ?? process.env.DOCKER_GLUETUN_SERVICE,
+  },
   allowedInterfaces: process.env.ALLOWED_INTERFACES?.split(',') ?? [],
   disallowedCountries: process.env.DISALLOWED_COUNTRIES?.split(',') ?? [],
   disallowedIntIps: process.env.DISALLOWED_INTERNAL_IPS?.split(',') ?? [],