InfluxDB with Telegraf Agent - Docker Compose Stack with Nginx Reverse Proxy

# Create folder structure
sudo mkdir -p /opt/influxdb/{config,data} && cd /opt/influxdb

# Create .env file
sudo vi .env

# .env
DOCKER_INFLUXDB_INIT_MODE=setup
DOCKER_INFLUXDB_INIT_USERNAME=admin
DOCKER_INFLUXDB_INIT_PASSWORD=admin-password # Define admin PW
DOCKER_INFLUXDB_INIT_ORG=jklug.work
DOCKER_INFLUXDB_INIT_BUCKET=storage-bucket-1
DOCKER_INFLUXDB_INIT_RETENTION=1w
DOCKER_INFLUXDB_INIT_ADMIN_TOKEN=kjnYdKk7V44AULwm7VEsDW3E

# Create Docker Compose file
sudo vi docker-compose.yml

# docker-compose.yml
version: "3.9"
services:
  influxdb:
    image: influxdb:2.7.4
    container_name: influxdb
    env_file:
      - .env
    restart: unless-stopped
    ports:
      - "8086:8086"
    security_opt:
      - no-new-privileges:true
    volumes:
      - ./config:/etc/influxdb2
      - ./data:/var/lib/influxdb2

# Create / start Docker stack
sudo docker compose up -d

# Install Certbot
sudo apt install certbot -y

# Create certificate
sudo certbot certonly --standalone -d influxdb.jklug.work

# Install nginx
sudo apt install nginx -y

# Copy default config
sudo cp /etc/nginx/sites-available/default /etc/nginx/sites-available/influxdb.jklug.work

# Edit config
sudo vi /etc/nginx/sites-available/influxdb.jklug.work

# influxdb.jklug.work
server {
    listen 443 ssl;
    server_name influxdb.jklug.work;

    ssl_certificate         /etc/letsencrypt/live/influxdb.jklug.work/fullchain.pem;
    ssl_certificate_key     /etc/letsencrypt/live/influxdb.jklug.work/privkey.pem;


    location / {
        proxy_pass http://127.0.0.1:8086/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

# Disable default config
sudo rm /etc/nginx/sites-enabled/default

# Enable config
sudo ln -s /etc/nginx/sites-available/influxdb.jklug.work /etc/nginx/sites-enabled/

# Restart Nginx
sudo systemctl restart nginx

# Open URL
influxdb.jklug.work

# Use username & pw defined in .env file

# Copy token
export INFLUX_TOKEN=kbGI64EWaacQYXWKCUgKPYPerUYeMiwqSlxVBqIvOgXN5691MXPEhaeNaAI30J-Tr5tdyeXT6pB8GU2_6ka0oA==

# Copy the part after "export INFLUX_TOKEN="
kbGI64EWaacQYXWKCUgKPYPerUYeMiwqSlxVBqIvOgXN5691MXPEhaeNaAI30J-Tr5tdyeXT6pB8GU2_6ka0oA==

# Download package
wget https://dl.influxdata.com/telegraf/releases/telegraf_1.28.5-1_amd64.deb

# Install Telegraph
sudo dpkg -i telegraf_1.28.5-1_amd64.deb

# Remove default Telegraf configuration
sudo rm /etc/telegraf/telegraf.conf

# Create new Telegraf configuration
sudo vi /etc/telegraf/telegraf.conf

# telegraf.conf
[agent]
  interval = "10s"
  round_interval = true
  metric_batch_size = 1000
  metric_buffer_limit = 10000
  collection_jitter = "0s"
  flush_interval = "10s"
  flush_jitter = "0s"
  precision = ""
  hostname = "Server1" # Define server name
  omit_hostname = false

[[outputs.influxdb_v2]]
  urls = ["http://127.0.0.1:8086"] # Define URL
  token = "kbGI64EWaacQYXWKCUgKPYPerUYeMiwqSlxVBqIvOgXN5691MXPEhaeNaAI30J-Tr5tdyeXT6pB8GU2_6ka0oA==" # Use token from InfluxDB
  organization = "jklug.work" # Define org from .env file
  bucket = "storage-bucket-1" # Define bucket from .env file

[[inputs.cpu]]
  percpu = true
  totalcpu = true
  collect_cpu_time = false
  report_active = false
[[inputs.disk]]
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
[[inputs.diskio]]
[[inputs.mem]]
[[inputs.net]]
[[inputs.processes]]
[[inputs.swap]]
[[inputs.system]]

# Define InfluxDB IP for external server monitoring: For example
[[outputs.influxdb_v2]]
  urls = ["http://192.168.30.4:8086"]

# Restart Telegraf
sudo systemctl restart telegraf

# Check status
sudo systemctl status telegraf

# Install stress package
sudo apt-get install stress

# Utilize all cpu cores for 10 seconds
stress --cpu $(nproc) --timeout 10s

# DockerHub
https://hub.docker.com/_/influxdb

# Official Documentation
https://docs.influxdata.com/influxdb/v2/install/?t=Docker

# Github
https://github.com/influxdata/influxdb

# Official Documentation
https://docs.influxdata.com/telegraf/v1/install/