add docker-compose, open port in firewall

.env.app.example

@@ -0,0 +1,15 @@
+IP_INFO_URL=https://ipinfo.io/json
+TRANSMISSION_HOST=localhost
+TRANSMISSION_PORT=9091
+DOCKER_TRANSMISSION_CWD=/path/to/transmission/docker-compose/yaml/config
+DOCKER_TRANSMISSION_SERVICE=transmission
+DOCKER_TRANSMISSION_SERVICE_NAME=transmission
+DOCKER_GLUETUN_CWD=/path/to/gluetun/docker-compose/yaml/config
+DOCKER_GLUETUN_SERVICE=gluetun
+DOCKER_GLUETUN_SERVICE_NAME=gluetun
+ALLOWED_INTERFACES=tun0
+DISALLOWED_COUNTRIES=your_country_code_e_g_LV
+DISALLOWED_INTERNAL_IPS=your_internal_ip_e_g_192.168
+DISALLOWED_EXT_IPS=your_external_ip
+DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/your_webhook_url
+UPDATE_INTERVAL_SECONDS=300

.env.example

@@ -1,12 +1,4 @@
-IP_INFO_URL=https://ipinfo.io/json
+#this is env file for docker-compose file (not for the apps)
-TRANSMISSION_HOST=localhost
+CONFIG_DIR=/mnt/hdd/transmission-config
-TRANSMISSION_PORT=9091
+DOWNLOAD_DIR1=/mnt/hdd/downloads
-DOCKER_TRANSMISSION_CWD=/path/to/transmission/docker-compose/yaml/config
+DOWNLOAD_DIR2=/mnt/hdd2/downloads
-DOCKER_TRANSMISSION_SERVICE=transmission
-DOCKER_TRANSMISSION_SERVICE_NAME=transmission
-ALLOWED_INTERFACES=tun0
-DISALLOWED_COUNTRIES=your_country_code_e_g_LV
-DISALLOWED_INTERNAL_IPS=your_internal_ip_e_g_192.168
-DISALLOWED_EXT_IPS=your_external_ip
-DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/your_webhook_url
-UPDATE_INTERVAL_SECONDS=300

.env.gluetun.example

@@ -0,0 +1,4 @@
+VPN_SERVICE_PROVIDER=privatevpn
+OPENVPN_USER=user
+OPENVPN_PASSWORD=passw
+SERVER_COUNTRIES=Sweden,Poland

.env.transmission.example

@@ -0,0 +1,9 @@
+PUID=1000
+PGID=1000
+TZ=Europe/Warsaw
+TRANSMISSION_WEB_HOME= #optional
+USER= #optional
+PASS= #optional
+WHITELIST= #optional
+PEERPORT= #optional
+HOST_WHITELIST= #optional

.gitignore

@@ -1,3 +1,4 @@
 node_modules
-.env
+.env**
+!.env**example
 .idea

docker-compose.yml

@@ -0,0 +1,23 @@
+services:
+  gluetun:
+    image: qmcgaw/gluetun
+    container_name: gluetun
+    cap_add:
+      - NET_ADMIN
+    env_file:
+      - .env.gluetun
+    ports:
+      - "9091:9091/tcp"
+      - "8000:8000/tcp"
+
+  transmission:
+    image: lscr.io/linuxserver/transmission:latest
+    container_name: transmission
+    env_file:
+      - ./.env.transmission
+    volumes:
+      - ${CONFIG_DIR}:/config
+      - ${DOWNLOAD_DIR1}:${DOWNLOAD_DIR1}
+      - ${DOWNLOAD_DIR2}:${DOWNLOAD_DIR2}
+    restart: unless-stopped
+    network_mode: "service:gluetun"

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(',') ?? [],