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TECHNICAL GUIDE • TR / EN / DE

OpenHands + Ollama / vLLM Local Model Setup

Connect OpenHands to local/self-hosted inference through Ollama or vLLM while planning model choice, endpoint reachability, context and GPU capacity.

Important production note

Before running commands in production, validate versions, backups, firewall rules and the rollback plan on your own infrastructure.

architecture capacity security troubleshooting
ARCHITECTURE & DIAGNOSTICS
EKA CORE
OpenHands + Ollama / vLLM Local Model Setup

Architecture and data flowProduction-focused technical check
Validated
How to size the serverProduction-focused technical check
Validated
How to measure performanceProduction-focused technical check
Validated
Security and access boundariesProduction-focused technical check
Validated
Official sources + measurable test + rollback plan
What this guide covers

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

01

What this guide covers

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow.

Architecture and data flow
How to size the server
How to measure performance
Security and access boundaries
Production readiness and go-live
Troubleshooting: where to start

Contents

  1. Architecture and data flow
  2. How to size the server
  3. How to measure performance
  4. Security and access boundaries
  5. Production readiness and go-live
  6. Troubleshooting: where to start
  7. Common failures and misdiagnosis patterns
  8. Commands and verification output
  9. Interactive technical tool
  10. Frequently asked questions
02

Architecture and data flow

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network.

Do not approve the OpenHands + Ollama / vLLM Local Model Setup design merely because every service starts. Keep the inference endpoint private and restrict access with API keys, firewall rules and runtime egress policy. Validate the real network and data path against OpenHands Local LLMs documentation before production.

03

How to size the server

For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue. Capacity testing should therefore use representative data and concurrent work on OpenHands + Ollama / vLLM Local Model Setup; idle RAM alone is not a sizing decision.

04

How to measure performance

For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together. For GPU-accelerated workloads, benchmarks are not comparable unless model/data, concurrency and measurement window remain identical.

Keep the model/data, concurrency and measurement window identical across comparisons. Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue. Record failure rate and peak resource usage next to throughput.

05

Security and access boundaries

Keep the inference endpoint private and restrict access with API keys, firewall rules and runtime egress policy.

Access control for OpenHands + Ollama / vLLM Local Model Setup is an architectural input rather than a post-deployment add-on. The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network. Database, worker, runtime or admin ports that do not need public exposure should remain private.

06

Production readiness and go-live

Compare success rate, latency and token usage on the same task set; a single-prompt benchmark is not enough.

Use this operation as one release verification point: curl http://127.0.0.1:11434/api/tags. Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue. If it fails, validate the rollback point before proceeding.

07

Troubleshooting: where to start

Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue.

To separate symptoms from root cause in OpenHands + Ollama / vLLM Local Model Setup, record the last change first. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together. Then correlate service logs, dependency health and network reachability on the same timeline.

ERR

Common failures and misdiagnosis patterns

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Symptom / problemLikely layerFirst verification
Sandbox starts but workspace is not writableFailure to reach host-side Ollama via localhost from a container is a common network-namespace issue.Correlate the relevant service log, dependency health and the last change on one timeline.
Agent cannot reach the local model endpointFor coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.Measure peak resources, concurrency and disk/network pressure in the same test window.
Tool calls produce malformed JSON or timeoutsKeep the inference endpoint private and restrict access with API keys, firewall rules and runtime egress policy.Verify public/private ports, authentication, TLS and secret scope from outside in.
GPU is available but task success remains lowCompare success rate, latency and token usage on the same task set; a single-prompt benchmark is not enough.Check version, config diff, persistent data and the rollback point together.
FLOW

Implementation and validation flow

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow.

1

Define the workspace boundary

Connect OpenHands to local/self-hosted inference through Ollama or vLLM while planning model choice, endpoint reachability, context and GPU capacity.

2

Validate the sandbox provider

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network.

3

Test the LLM endpoint independently

For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

4

Restrict secrets and network egress

Keep the inference endpoint private and restrict access with API keys, firewall rules and runtime egress policy.

5

Benchmark with the same task set

Compare success rate, latency and token usage on the same task set; a single-prompt benchmark is not enough.

6

Verify results with logs and artifacts

Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue.

CLI

Commands and verification output

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow.

Step 1
ollama list
Step 2
curl http://127.0.0.1:11434/api/tags
Step 3
curl http://127.0.0.1:8000/v1/models
Step 4
nvidia-smi
GPU

Interactive technical tool

Approximate VRAM planner for model weights

This result is an estimate; production decisions require real measurements and tests.
TECHNICAL PRE-ASSESSMENT

Let us evaluate your server requirements technically

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Phone & WhatsApp0850 307 34 58Do not send passwords initially.
SRC

Official and technical sources

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow.

EKA

Related Eka Sunucu pages

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow.

FAQ

Frequently asked questions

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Does OpenHands use the GPU directly?

The agent layer calls a local provider endpoint; the runtime must be able to reach it over the network.

What is the security boundary between sandbox and host?

Keep the inference endpoint private and restrict access with API keys, firewall rules and runtime egress policy.

How can a container reach Ollama/vLLM?

For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Which class of local model should be tested?

Compare success rate, latency and token usage on the same task set; a single-prompt benchmark is not enough.

Which directories should not be mounted into the workspace?

Failure to reach host-side Ollama via localhost from a container is a common network-namespace issue.

Does the interactive tool on this page provide a capacity guarantee?

No. It is an initial planning estimate. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together. Validate the final decision against the real workload.

EKA SUNUCU

Let us evaluate your server requirements technically

Beyond install commands, this guide covers architecture, capacity, security, troubleshooting and production operations as one workflow. For coding agents, context and tool-use quality matter alongside model quality; measure VRAM and token throughput together.

Phone & WhatsApp0850 307 34 58ekasunucu.com
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