Hey everyone,
I’m hitting a wall trying to get n8n running on Heroku using Docker. I’ve set up a Postgres database and created the necessary files, but something’s not clicking.
Here’s what I’ve done so far:
- Set up Postgres 11:
heroku addons:create heroku-postgresql:hobby-dev --version=11 -a my-project
- Created a simple Dockerfile:
FROM customapp/workflow
- Made a heroku.yml file with config settings and build instructions.
When I check the logs, I see warnings about Tini not running as PID 1 and some permission issues. The app crashes with an H10 error.
Has anyone successfully deployed n8n on Heroku? What am I missing? Any tips or tricks would be super helpful. Thanks!
In my experience with deploying n8n on Heroku, I found that the core issue was in the Dockerfile configuration. I switched the base image to n8nio/n8n:latest and made some necessary tweaks by installing Tini explicitly. Adjusting the Dockerfile to update packages and install Tini helped address running problems when Tini wasn’t executing as PID 1.
It also helped to simplify the Procfile to just start n8n, and to verify that the required environment variables—DATABASE_URL, N8N_ENCRYPTION_KEY, and N8N_PROTOCOL_HTTPS set to true—were correctly set. Lastly, be prepared to address file storage challenges on Heroku’s ephemeral filesystem by moving persistent storage to an external service.
yo harry, i had similar issues. make sure u use n8nio/n8n:latest in your dockerfile and set heroku vars like DATABASE_URL, N8N_ENCRYPTION_KEY, & N8N_PROTOCOL_HTTPS properly. note heroku’s filesystem is temporary, so consider external storage like s3. good luck!
I’ve deployed n8n on Heroku before, and I can share some insights. The key is to use the official n8n Docker image and adjust your Dockerfile accordingly. Make sure you’re using ‘n8nio/n8n:latest’ as your base image.
Also, pay attention to your environment variables. Heroku requires specific configurations, so double-check that you’ve set DATABASE_URL, N8N_ENCRYPTION_KEY, and N8N_PROTOCOL_HTTPS correctly in your Heroku config vars.
One often overlooked aspect is Heroku’s ephemeral filesystem. You’ll need to set up external storage for any persistent data. I recommend using a service like AWS S3 for this purpose.
Lastly, if you’re still encountering issues, try enabling Heroku’s verbose logging. It can provide more detailed error messages that might point you in the right direction.