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Manual de Instalação N8N

Criando Banco de dados Usuario e Senha Postgres

sudo apt-get install postgresql

sudo -i -u postgres psql

CREATE ROLE n8n_user WITH LOGIN PASSWORD 'SenhaAqui';

CREATE DATABASE n8n_db;

GRANT ALL PRIVILEGES ON DATABASE n8n_db TO n8n_user;

GRANT CONNECT ON DATABASE n8n_db TO n8n_user;

\q

Instale a última versão do n8n

sudo apt-get update

sudo apt-get install -y ca-certificates curl gnupg

sudo mkdir -p /etc/apt/keyrings

curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg

Criar repositório deb

NODE_MAJOR=20

echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list

Execute a atualização e instale

sudo apt-get update

sudo apt-get install nodejs -y

sudo npm install -g n8n

npm install pm2 -g

sudo apt-get install -y libgbm-dev wget unzip fontconfig locales gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils

wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb

sudo apt install ./google-chrome-stable_current_amd64.deb

sudo apt install nginx

sudo nano /etc/nginx/sites-available/n8n

server {
  server_name conector.dominio.com.br;
  
  underscores_in_headers on;

  location / {

   proxy_pass http://127.0.0.1:5678;
   proxy_pass_header Authorization;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "upgrade";
   proxy_set_header Host $host;
   proxy_set_header X-Forwarded-Proto $scheme;
   proxy_set_header X-Forwarded-Ssl on; # Optional
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_http_version 1.1;
   proxy_set_header Connection "";
   proxy_buffering off;
   client_max_body_size 0;
   proxy_read_timeout 36000s;
   proxy_redirect off;
  }
  add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
  ssl_protocols TLSv1.2 TLSv1.3;
} 

sudo ln -s /etc/nginx/sites-available/n8n /etc/nginx/sites-enabled

sudo apt-get install snapd

sudo snap install notes

sudo snap install --classic certbot

sudo certbot --nginx

sudo service nginx restart

pm2 start n8n --cron-restart="0 0 * * *" -- start

Execute esse comando abaixo para não cair seu n8n quando você reiniciar sua VPS

sudo pm2 startup ubuntu -u root && sudo pm2 startup ubuntu -u root --hp /root && sudo pm2 save

nano /root/.n8n/.env

Altere as seguintes variaveis baixo no arquivo .env

DB_POSTGRESDB_PASSWORD=SenhaAqui

WEBHOOK_URL=https://conector.dominio.com.br

N8N_EDITOR_BASE_URL=https://conector.dominio.com.br

DB_TYPE=postgresdb
DB_POSTGRESDB_HOST=localhost
DB_POSTGRESDB_PORT=5432
DB_POSTGRESDB_USER=n8n_user
DB_POSTGRESDB_PASSWORD=SenhaAqui
DB_POSTGRESDB_DATABASE=n8n_db
N8N_EDITOR_BASE_URL="https://conector.dominio.com.br"
WEBHOOK_URL="https://conector.dominio.com.br"
EXECUTIONS_DATA_PRUNE=true
EXECUTIONS_DATA_MAX_AGE=168
EXECUTIONS_DATA_PRUNE_MAX_COUNT=5000
GENERIC_TIMEZONE="America/Sao_Paulo"

Cria um link simbólico chamado ".env" que aponta para o arquivo "./.n8n/.env" no sistema de arquivos.

ln -s ./.n8n/.env .env
pm2 restart all --update-env