No response from Firebase in Docker - docker

Question

I'm trying to query firebase from a node.js app in a Docker container. It works locally but not in the container. I have port 443 open and I can make a request to google fine. For some reason I never get a response back running in the Docker container though. I suspect it's something with websockets.
My Ports are: 0.0.0.0:443->443/tcp, 0.0.0.0:8080->8080/tcp
And in my docker syslog:
: dropping unexpected TCP packet sent from 172.18.0.3:33288 to 216.58.210.173:443 (valid sources = 192.168.65.2, 0.0.0.0)
Any on ideas on what to try?
firebase.initializeApp({
serviceAccount: firebaseKey,
databaseURL: 'https://my-firebase.firebaseio.com'
});
const userId = 'xxxxxxxxxxxx';
const ref = firebase.database().ref(`datasource/${userId}`)
.once('value').then( (snapshot) => {
console.log(snapshot.val());
return callback(null, 'ok');
}, (error) => {
console.error(error);
return callback(error);
});
And my docker-compose.yml
version: "2"
services:
test-import:
build: .
command: npm run dev
volumes:
- .:/var/www
ports:
- "7000:8080"
- "443:443"
depends_on:
- mongo
networks:
- import-net
mongo:
container_name: mongo
image: mongo
networks:
- import-net
networks:
import-net:
driver: bridge

Answer 1

In my case the problem was that serviceAccount.privateKey was set using an environment variable. The value of that environment variable is a multi line string and that was causing the issue. So double check that serviceAccount is correctly configured in order to solve this.
edit
I had the same problem again today. The solution was to sync the time with a NTP server because the time in the Docker container was wrong (a few days off).