My n8n setup on fly.io

Final Project Tree

n8n-project/
├── docker-build.sh
├── Dockerfile
└── fly.toml

Setting up

mkdir n8n-project && cd n8n-project
touch fly.toml

fly.toml file

# fly.toml app configuration file generated for n8n-ampersanda on 2023-09-26T12:45:18+07:00
#
# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
#

app = "n8n-project"
primary_region = "sin"
kill_signal = "SIGINT"
kill_timeout = "5s"

[experimental]
  auto_rollback = true

[build]
  # I'm using modified image, see Dockerfile
  # or use from the n8n one
  image = "ampersanda/n8n:latest" 

[env]
  GENERIC_TIMEZONE = "Asia/Jakarta"
  N8N_DIAGNOSTICS_ENABLED = "false"
  N8N_HIRING_BANNER_ENABLED = "false"
  N8N_HOST = "n8n-project.fly.dev" # replace with n8n hostname
  TINI_SUBREAPER = "true"
  WEBHOOK_URL = "https://n8n-project.fly.dev" # replace with n8n hostname

[[mounts]]
  source = "n8n_vol" # replace with volume name created before
  destination = "/home/node/.n8n"

[[services]]
  protocol = "tcp"
  internal_port = 5678
  processes = ["app"]

  [[services.ports]]
    port = 80
    handlers = ["http"]
    force_https = true

  [[services.ports]]
    port = 443
    handlers = ["tls", "http"]
  [services.concurrency]
    type = "connections"
    hard_limit = 25
    soft_limit = 20

  [[services.tcp_checks]]
    interval = "15s"
    timeout = "2s"
    grace_period = "1s"

Dockerfile file for image modification

Install additional things if you have customized image

FROM n8nio/n8n

USER root

RUN apk --update add curl python3 ffmpeg bash unzip gnupg \
    chromium \
    nss \
    freetype \
    freetype-dev \
    harfbuzz \
    ca-certificates \
    ttf-freefont \
    nodejs \
    yarn \
    && yarn add puppeteer \
    && yarn cache clean \
    && apk del --no-cache make gcc g++ python3
RUN wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
RUN chmod a+rx /usr/local/bin/youtube-dl
RUN cd /usr/local/lib/node_modules/n8n && npm install n8n-nodes-puppeteer

ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser \
    PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
    CHROMIUM_PATH=/usr/bin/chromium-browser \
    NODE_OPTIONS='--max_old_space_size=8000'

docker-build.sh

Build script to upload and update custom n8n package to Docker

docker pull docker.n8n.io/n8nio/n8n
docker buildx build -t ampersanda/n8n --platform=linux/amd64 --push .

Deployment

flyctl launch --no-deploy
flyctl volumes create n8n_vol --size 1 -r sin # "sin" is for Singapore, change for desired region
flyctl deploy

# optional, scale memory
flyctl scale memory 512 -a n8n-project