Environment variables

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Cyril Rohr edited this page Mar 13, 2026 · 2 revisions

PullPreview writes the following environment variables to /etc/pullpreview/env on the preview instance and uses them during deployment:

PULLPREVIEW_PUBLIC_DNS: generated public DNS name for the preview
PULLPREVIEW_PUBLIC_IP: public IP address of the preview instance
PULLPREVIEW_URL: full preview URL, including scheme and port
PULLPREVIEW_FIRST_RUN: true on the first deployment to an instance, otherwise false
PULLPREVIEW_DEPLOYMENT_TARGET: compose or helm
PULLPREVIEW_NAMESPACE: Kubernetes namespace for Helm previews
PULLPREVIEW_RELEASE_NAME: Helm release name for Helm previews (app)
COMPOSE_FILE: colon-separated Compose file list for Compose previews; empty for Helm previews

These values are available to:

pre_script
Compose environment interpolation
Helm placeholder expansion in chart_set and proxy_tls