env-vars.md

Environment Variables

How to set variables

Current terminal only:

export KEY="value"

Persist in your shell profile (~/.zshrc, ~/.bashrc, or ~/.bash_profile):

echo 'export KEY="value"' >> ~/.bashrc
source ~/.bashrc

You can also set env vars in your runtime environment (Docker, systemd, CI, or cloud platform settings).

Provider-independent

No global env var is required for startup.

Loki

• LOKI_BEARER_TOKEN: bearer auth token
• LOKI_USERNAME: basic auth username
• LOKI_PASSWORD: basic auth password

Example:

export LOKI_BEARER_TOKEN="your-token"
# or
export LOKI_USERNAME="your-username"
export LOKI_PASSWORD="your-password"

Elasticsearch

• ELASTICSEARCH_API_KEY
• ELASTICSEARCH_USERNAME
• ELASTICSEARCH_PASSWORD
• ELASTICSEARCH_COMPAT_VERSION: 7, 8, or 9 (default 8)

Example:

export ELASTICSEARCH_API_KEY="your-api-key"
export ELASTICSEARCH_COMPAT_VERSION="8"

Cloud provider credentials

Use each cloud SDK's default credential chain:

• GCP: Application Default Credentials
• AWS: AWS default credential provider chain
• Azure: DefaultAzureCredential