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Ollama

Configure HolmesGPT to use local models with Ollama.

Warning

Ollama support is experimental and can be tricky to configure correctly. We recommend trying HolmesGPT with a hosted model first (like Claude or OpenAI) to ensure everything works before switching to Ollama. Tool-calling capabilities are limited and may produce inconsistent results. Only LiteLLM supported Ollama models work with HolmesGPT.

Setup

  1. Download Ollama from ollama.com
  2. Start Ollama: ollama serve
  3. Download models: ollama pull <model-name>

Configuration

Ollama Service

In Kubernetes, you'll need to deploy Ollama as a service in your cluster. The OLLAMA_API_BASE should point to your Ollama service endpoint.

export OLLAMA_API_BASE="http://localhost:11434"
holmes ask "what pods are failing?" --model="ollama_chat/<your-ollama-model>"

# Or use MODEL environment variable instead of --model flag
export MODEL="ollama_chat/<your-ollama-model>"
holmes ask "what pods are failing?"

When using the standalone Holmes Helm Chart, merge this into your values.yaml, appending list entries (such as additionalEnvVars) to the lists already there:

additionalEnvVars:
  - name: OLLAMA_API_BASE
    value: "http://ollama-service:11434"
  # Optional: Set default model (use modelList key name)
  - name: MODEL
    value: "ollama-llama3"  # This refers to the key name in modelList below

# Configure at least one model using modelList
modelList:
  ollama-llama3:
    api_base: "{{ env.OLLAMA_API_BASE }}"
    model: ollama_chat/llama3
    temperature: 1

  ollama-codellama:
    api_base: "{{ env.OLLAMA_API_BASE }}"
    model: ollama_chat/codellama
    temperature: 1

Apply the configuration:

helm upgrade holmes robusta/holmes -f values.yaml

When using the Robusta Helm Chart (which includes HolmesGPT), merge the keys under holmes: into the holmes: key of your generated_values.yaml (add one if it has none), appending list entries (such as additionalEnvVars) to the lists already there:

holmes:
  additionalEnvVars:
    - name: OLLAMA_API_BASE
      value: "http://ollama-service:11434"
    # Optional: Set default model (use modelList key name)
    - name: MODEL
      value: "ollama-llama3"  # This refers to the key name in modelList below

  # Configure at least one model using modelList
  modelList:
    ollama-llama3:
      api_base: "{{ env.OLLAMA_API_BASE }}"
      model: ollama_chat/llama3
      temperature: 1

    ollama-codellama:
      api_base: "{{ env.OLLAMA_API_BASE }}"
      model: ollama_chat/codellama
      temperature: 1

Apply the configuration:

helm upgrade robusta robusta/robusta -f generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>

Alternative (OpenAI-compatible gateway)

If you hit compatibility issues with certain Ollama models via LiteLLM, you can use Ollama's OpenAI-compatible API endpoint:

export OPENAI_API_BASE="http://localhost:11434/v1"
export OPENAI_API_KEY="dummy-key"  # Required but can be any value
holmes ask "what pods are failing?" --model="openai/<your-ollama-model>"

# Or use MODEL environment variable instead of --model flag
export MODEL="openai/<your-ollama-model>"
holmes ask "what pods are failing?"

When using the standalone Holmes Helm Chart, merge this into your values.yaml, appending list entries (such as additionalEnvVars) to the lists already there:

additionalEnvVars:
  - name: OPENAI_API_BASE
    value: "http://ollama-service:11434/v1"
  - name: OPENAI_API_KEY
    value: "YOUR_BEARER_TOKEN_HERE"
  # Optional
  - name: MODEL
    value: "ollama-alt"

modelList:
  ollama-alt:
    api_base: "{{ env.OPENAI_API_BASE }}"
    api_key: "{{ env.OPENAI_API_KEY }}"
    model: openai/OLLAMA_MODEL_NAME

Apply the configuration:

helm upgrade holmes robusta/holmes -f values.yaml

When using the Robusta Helm Chart (which includes HolmesGPT), merge the keys under holmes: into the holmes: key of your generated_values.yaml (add one if it has none), appending list entries (such as additionalEnvVars) to the lists already there:

holmes:
  additionalEnvVars:
    - name: OPENAI_API_BASE
      value: "http://ollama-service:11434/v1"
    - name: OPENAI_API_KEY
      value: "YOUR_BEARER_TOKEN_HERE"
    # Optional
    - name: MODEL
      value: "ollama-alt"

  modelList:
    ollama-alt:
      api_base: "{{ env.OPENAI_API_BASE }}"
      api_key: "{{ env.OPENAI_API_KEY }}"
      model: openai/OLLAMA_MODEL_NAME

Apply the configuration:

helm upgrade robusta robusta/robusta -f generated_values.yaml --set clusterName=<YOUR_CLUSTER_NAME>

Additional Resources

HolmesGPT uses the LiteLLM API to support Ollama provider. Refer to LiteLLM Ollama docs for more details.