n8n

n8n automates work across your apps with a visual workflow editor and hundreds of integrations. The n8n template runs it from the official n8nio/n8n:stable image with its data in PostgreSQL.

What the template creates

Resource	What it is
n8n	The editor, API and webhooks on port 5678, with 512 MiB of memory and a 1 GB volume at /home/node/.n8n
n8n-db	PostgreSQL 17 with 1 GiB of storage, connected to n8n
N8N_ENCRYPTION_KEY	A shared variable Dekka generates, which encrypts the credentials you save in n8n

The service's database settings come from its connection, and WEBHOOK_URL and N8N_HOST point at the service's public address, so webhooks you create in n8n show the right URL. The timezone is set to Africa/Accra, which you can change in the service's variables.

n8n needs nothing from you to deploy. Because the service needs 512 MiB and the database 1 GiB, it needs the Starter plan or above.

After it deploys

Open the service's URL and create the owner account, which is the first thing n8n asks for. Then add credentials for the apps you want to automate and build your first workflow.

Run n8n with workers

The n8n with workers template runs n8n in queue mode, where the main service hands each execution to a worker through Redis. It suits workflows that run often or for a long time, because the editor stays responsive while workers do the work.

Resource	What it is
n8n	The editor, API and webhooks, as above, with EXECUTIONS_MODE=queue
n8n-worker	A worker running n8n worker --concurrency=10, with 512 MiB of memory
n8n-db	PostgreSQL 17, connected to both services
n8n-queue	Redis with 64 MiB and the noeviction policy, so queued jobs are never dropped

Both services read the encryption key, execution mode and timezone from shared variables. To add workers later, duplicate n8n-worker, and each copy gets the same encryption key from the shared variable.

Limits

The volume keeps n8n's local files, so the main service runs a single replica. During the pilot, deploys run on a simulated engine, so n8n doesn't actually start or serve its editor.

n8n is distributed under the Sustainable Use License, which limits some commercial uses, so read its terms before you build on it.