Overview

This is a Heroku-focused container implementation of n8n. I forked it from n8n-heroku to make it work with docker.

Purpose

I needed to have the n8n config in a repo somewhere to be able to force-rebuild it on heroku and have the latest version of n8n. This project was instantiated for the sole purpose of having n8n latest updates.

On first deploy

Steps

1. Create a new heroku app
2. Set the config vars (cf. below)
3. Clone this GitHub project on your machine
4. Login to heroku on your machine

   heroku login

5. Add the heroku as a remote to your local project

   You'll end up with two remotes: one that is this github repo, another that's the heroku one.

   git remote -a morpho-n8n

6. Deploy the app

   git push heroku main

7. Go back to the heroku dashboard to set the WEBHOOK_URL var (cf. below)

Environment variables

DB_POSTGRESDB_SSL_REJECT_UNAUTHORIZED=false
EXECUTIONS_DATA_MAX_AGE=48
EXECUTIONS_DATA_PRUNE=true
EXECUTIONS_DATA_PRUNE_MAX_COUNT=10000
EXECUTIONS_DATA_SAVE_MANUAL_EXECUTIONS=none
EXECUTIONS_DATA_SAVE_ON_ERROR=all
EXECUTIONS_DATA_SAVE_ON_SUCCESS=none
EXECUTIONS_PROCESS=main
GENERIC_TIMEZONE=Europe/Paris
GITHUB_AUTO_DEPLOY=false
N8N_DISABLE_PRODUCTION_WEBHOOKS=true
N8N_ENCRYPTION_KEY=**a secure key**
WEBHOOK_URL=**You'll only know it after the first deploy**

You'll have some extra environment variables set automatically by heroku.

To update n8n

Simply run these commands on your local machine:

git commit --allow-empty -m "updating n8n"
git push heroku main

You'll force re-build the app and pull the latest n8n version.

No worries, workflows, executions and credentials are all persisted in the postgres database add-on of the heroku project ;)