Jeice Santos
Subindo documentação do n8n limpa
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Docker Installation

Docker{:target=_blank .external-link} offers the following advantages:

  • Installs n8n in a clean environment.
  • Easier setup for your preferred database.
  • Can avoid issues due to different operating systems, as Docker provides a consistent system.
  • Can avoid compatibility issues due to differences in operating systems and tools.
  • Makes migrating to new hosts or environments more straightforward.

You can also use n8n in Docker with Docker Compose. You can find Docker Compose configurations for various architectures in the n8n-hosting repository.

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Prerequisites

Before proceeding, install Docker Desktop{:target=_blank .external-link}.

/// note | Linux Users Docker Desktop is available for Mac and Windows. Linux users must install Docker Engine and Docker Compose individually for your distribution. ///

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Starting n8n

From your terminal, run:

docker volume create n8n_data

docker run -it --rm --name n8n -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n

This command creates a volume to store persistent data, downloads the required n8n image, and starts your container, exposed on port 5678. To save your work between container restarts, it also mounts a docker volume, n8n_data, to persist your data locally.

Once running, you can access n8n by opening: http://localhost:5678

Using with PostgreSQL

By default, n8n uses SQLite to save credentials, past executions, and workflows. n8n also supports PostgreSQL, configurable using environment variables as detailed below.

When using PostgreSQL, it's still important to persist the data stored in the /home/node/.n8n folder. This includes n8n user data and, even more importantly, the encryption key for credentials. It's also the name of the webhook when using the n8n tunnel.

If n8n can't find the /home/node/.n8n directory on startup, it automatically creates one. In this case, all existing credentials that n8n saved with a different encryption key will no longer work.

/// note | Keep in mind While persisting the /home/node/.n8n directory with PostgreSQL is the recommended best practice, it's not explicitly required. You can provide the encryption key by passing the N8N_ENCRYPTION_KEY environment variable when starting your Docker container. ///

To use n8n with PostgreSQL, execute the following commands, replacing the placeholders (depicted within angled brackets, for example <POSTGRES_USER>) with your actual values:

docker volume create n8n_data

docker run -it --rm \
 --name n8n \
 -p 5678:5678 \
 -e DB_TYPE=postgresdb \
 -e DB_POSTGRESDB_DATABASE=<POSTGRES_DATABASE> \
 -e DB_POSTGRESDB_HOST=<POSTGRES_HOST> \
 -e DB_POSTGRESDB_PORT=<POSTGRES_PORT> \
 -e DB_POSTGRESDB_USER=<POSTGRES_USER> \
 -e DB_POSTGRESDB_SCHEMA=<POSTGRES_SCHEMA> \
 -e DB_POSTGRESDB_PASSWORD=<POSTGRES_PASSWORD> \
 -v n8n_data:/home/node/.n8n \
 docker.n8n.io/n8nio/n8n

You can find a complete docker-compose file for PostgreSQL in the n8n hosting repository.

Setting timezone

To define the timezone n8n should use, you can set the GENERIC_TIMEZONE environment variable. Schedule-oriented nodes, like the Schedule Trigger node use this to determine the correct timezone.

You can set the system timezone, which controls what some scripts and commands like date return, using the TZ environment variable.

This example sets the same timezone for both variables:

docker volume create n8n_data

docker run -it --rm \
 --name n8n \
 -p 5678:5678 \
 -e GENERIC_TIMEZONE="Europe/Berlin" \
 -e TZ="Europe/Berlin" \
 -v n8n_data:/home/node/.n8n \
 docker.n8n.io/n8nio/n8n

Updating

To update n8n, in Docker Desktop, navigate to the Images tab and select Pull from the context menu to download the latest n8n image:

Docker Desktop

You can also use the command line to pull the latest, or a specific version:

# Pull latest (stable) version
docker pull docker.n8n.io/n8nio/n8n

# Pull specific version
docker pull docker.n8n.io/n8nio/n8n:1.81.0

# Pull next (unstable) version
docker pull docker.n8n.io/n8nio/n8n:next

After pulling the updated image, stop your n8n container and start it again. You can also use the command line. Replace <container_id> in the commands below with the container ID you find in the first command:

# Find your container ID
docker ps -a

# Stop the container with the `<container_id>`
docker stop <container_id>

# Remove the container with the `<container_id>`
docker rm <container_id>

# Start the container
docker run --name=<container_name> [options] -d docker.n8n.io/n8nio/n8n

Updating Docker Compose

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Further reading

You can find more information about Docker setup in the README file for the Docker image.

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Start n8n with --tunnel by running:

docker volume create n8n_data

docker run -it --rm \
 --name n8n \
 -p 5678:5678 \
 -v n8n_data:/home/node/.n8n \
 docker.n8n.io/n8nio/n8n \
 start --tunnel

Next steps

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