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feat: add n8n

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This commit is contained in:
Yuris Cakranegara
2025-06-08 18:56:45 +10:00
parent ba4a648902
commit c6b3a16ea4
5 changed files with 158 additions and 1 deletions
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10
modules/20-services-apps/n8n/.env.example Normal file
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@@ -0,0 +1,10 @@
POSTGRES_USER=admin
POSTGRES_PASSWORD=
POSTGRES_DB=n8n
POSTGRES_NON_ROOT_USER=
POSTGRES_NON_ROOT_PASSWORD=
N8N_HOST=localhost
N8N_PORT=5678
N8N_PROTOCOL=http
WEBHOOK_URL=https://n8n.yourdomain.com/
NODE_FUNCTION_ALLOW_EXTERNAL=*

13
modules/20-services-apps/n8n/init-data.sh Normal file
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@@ -0,0 +1,13 @@
#!/bin/bash
set -e;
if [ -n "${POSTGRES_NON_ROOT_USER:-}" ] && [ -n "${POSTGRES_NON_ROOT_PASSWORD:-}" ]; then
psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
CREATE USER ${POSTGRES_NON_ROOT_USER} WITH PASSWORD '${POSTGRES_NON_ROOT_PASSWORD}';
GRANT ALL PRIVILEGES ON DATABASE ${POSTGRES_DB} TO ${POSTGRES_NON_ROOT_USER};
GRANT CREATE ON SCHEMA public TO ${POSTGRES_NON_ROOT_USER};
EOSQL
else
echo "SETUP INFO: No Environment variables given!"
fi

127
modules/20-services-apps/n8n/main.tf Normal file
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@@ -0,0 +1,127 @@
terraform {
required_providers {
dotenv = {
source = "germanbrew/dotenv"
}
}
}
variable "image_tag" {
description = "The tag for the n8n container image"
type = string
default = "latest"
}
variable "volume_path" {
description = "Base directory for volumes"
type = string
}
variable "networks" {
description = "List of networks to which the container should be attached"
type = list(string)
default = []
}
locals {
container_name = "n8n"
database_name = "n8n-postgres"
n8n_image = "docker.n8n.io/n8nio/n8n"
database_image = "postgres"
n8n_tag = var.image_tag != "" ? var.image_tag : "latest"
database_tag = "16"
monitoring = true
env_file = "${path.module}/.env"
n8n_internal_port = 5678
# Define volumes
n8n_volumes = [
{
host_path = "${var.volume_path}/n8n_storage/_data"
container_path = "/home/node/.n8n"
read_only = false
}
]
database_volumes = [
{
host_path = "${var.volume_path}/db_storage/_data"
container_path = "/var/lib/postgresql/data"
read_only = false
},
{
host_path = "${var.volume_path}/init-data.sh"
container_path = "/docker-entrypoint-initdb.d/init-data.sh"
read_only = false
}
]
# Environment variables for the database
database_env_vars = {
POSTGRES_USER = provider::dotenv::get_by_key("POSTGRES_USER", local.env_file)
POSTGRES_PASSWORD = provider::dotenv::get_by_key("POSTGRES_PASSWORD", local.env_file)
POSTGRES_DB = provider::dotenv::get_by_key("POSTGRES_DB", local.env_file)
POSTGRES_NON_ROOT_USER = provider::dotenv::get_by_key("POSTGRES_NON_ROOT_USER", local.env_file)
POSTGRES_NON_ROOT_PASSWORD = provider::dotenv::get_by_key("POSTGRES_NON_ROOT_PASSWORD", local.env_file)
}
# Environment variables for n8n
n8n_env_vars = {
DB_TYPE = "postgresdb"
DB_POSTGRESDB_HOST = local.database_name
DB_POSTGRESDB_PORT = 5432
DB_POSTGRESDB_DATABASE = provider::dotenv::get_by_key("POSTGRES_DB", local.env_file)
DB_POSTGRESDB_USER = provider::dotenv::get_by_key("POSTGRES_NON_ROOT_USER", local.env_file)
DB_POSTGRESDB_PASSWORD = provider::dotenv::get_by_key("POSTGRES_NON_ROOT_PASSWORD", local.env_file)
N8N_HOST = provider::dotenv::get_by_key("N8N_HOST", local.env_file)
N8N_PORT = provider::dotenv::get_by_key("N8N_PORT", local.env_file)
N8N_PROTOCOL = provider::dotenv::get_by_key("N8N_PROTOCOL", local.env_file)
WEBHOOK_URL = provider::dotenv::get_by_key("WEBHOOK_URL", local.env_file)
NODE_FUNCTION_ALLOW_EXTERNAL = provider::dotenv::get_by_key("NODE_FUNCTION_ALLOW_EXTERNAL", local.env_file)
}
# Healthcheck configuration for the database
database_healthcheck = {
test = ["CMD-SHELL", "pg_isready -h localhost -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
interval = "5s"
timeout = "5s"
retries = 10
start_period = "10s"
}
}
# Create the PostgreSQL container
module "postgres" {
source = "../../10-services-generic/docker-service"
container_name = local.database_name
image = local.database_image
tag = local.database_tag
volumes = local.database_volumes
env_vars = local.database_env_vars
networks = var.networks
monitoring = local.monitoring
healthcheck = local.database_healthcheck
}
# Create the n8n container
module "n8n" {
source = "../../10-services-generic/docker-service"
container_name = local.container_name
image = local.n8n_image
tag = local.n8n_tag
volumes = local.n8n_volumes
env_vars = local.n8n_env_vars
networks = var.networks
monitoring = local.monitoring
depends_on = [module.postgres]
}
output "service_definition" {
description = "General service definition with optional ingress configuration"
value = {
name = local.container_name
primary_port = local.n8n_internal_port
endpoint = "http://${local.container_name}:${local.n8n_internal_port}"
subdomains = ["n8n"]
}
}

6
services/main.tf
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@@ -52,3 +52,9 @@ module "pterodactyl_wings" {
volume_path = "${local.volume_host}/pterodactyl/wings"
networks = [module.homelab_docker_network.name]
}
module "n8n" {
source = "${local.module_dir}/20-services-apps/n8n"
volume_path = "${local.volume_host}/n8n"
networks = [module.homelab_docker_network.name]
}

3
services/outputs.tf
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@@ -9,7 +9,8 @@ output "service_definitions" {
module.linkwarden.service_definition,
module.ntfy.service_definition,
module.pterodactyl_wings.service_definition,
module.pterodactyl_panel.service_definition
module.pterodactyl_panel.service_definition,
module.n8n.service_definition
]
}