Ollama | Getting Started

by Ralph Allgemein

Inhaltsverzeichnis

Installation

Read here for details.

Linuxcurl -fsSL https://ollama.com/install.sh | sh
Mac OSDownload
WindowsDownload

Start Ollama Service

ollama start

This starts the Ollama Service and binds it to the default ip address 127.0.0.1:11434

If you want to access the service from another host/client, you have to use the ip address 0.0.0.0

systemctl stop ollama.service
export OLLAMA_HOST=0.0.0.0:11434
ollama start

To change the IP address of the service, edit the file /etc/systemd/system/ollama.service and add

[Unit]
Description=Ollama Service
After=network-online.target

[Service]
ExecStart=/usr/local/bin/ollama serve
User=ollama
Group=ollama
Restart=always
RestartSec=3
Environment="OLLAMA_HOST=0.0.0.0:11434"

[Install]
WantedBy=default.target

Access the Ollama Service from your Browser using <ip-adress of host>:11434

Sample Python Chat

Install Python

Install Ollama Library

pip install ollama

Create the chat programm

#!/usr/bin/env python

from ollama import Client

ollama = Client(host='127.0.0.1')

response = ollama.chat(model='llama3', messages=[
  {
    'role': 'user',
    'content': 'Why is the sky blue?',
  },
])
print(response['message']['content'])

Run the programm

❯ ./chat.py

Hint: To see, whats happen with the service, monitor the logfile

❯ sudo journalctl -u ollama.service -f

Query the API

Read the API definition here

curl http://localhost:11434/api/generate -d '{
  "model": "llama2",
  "prompt": "Why is the sky blue?",
  "stream": false
}'

Create a simple ChatGPT Clone

Create the Gradio App