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piku/docs/ENV.md

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Configuring Piku via ENV

You can configure deployment settings by placing special variables in an ENV file deployed with your app.

Runtime Settings

  • PIKU_AUTO_RESTART (boolean, defaults to true): Piku will restart all workers every time the app is deployed. You can set it to 0/false if you prefer to deploy first and then restart your workers separately.

Python

  • PYTHON_VERSION (int): Forces Python 3

Node

  • NODE_VERSION: installs a particular version of node for your app if nodeenv is found on the path.

Note: you will need to stop and re-deploy the app to change the node version in a running app.

Network Settings

  • BIND_ADDRESS: IP address to which your app will bind (typically 127.0.0.1)
  • PORT: TCP port for your app to listen in (if deploying your own web listener).
  • DISABLE_IPV6 (boolean): if set to true, it will remove IPv6-specific items from the nginx config, which will accept only IPv4 connections

uWSGI Settings

  • UWSGI_MAX_REQUESTS (integer): set the max-requests option to determine how many requests a worker will receive before it's recycled.
  • UWSGI_LISTEN (integer): set the listen queue size.
  • UWSGI_PROCESSES (integer): set the processes count.
  • UWSGI_ENABLE_THREADS (boolean): set the enable-threads option.
  • UWSGI_LOG_MAXSIZE (integer): set the log-maxsize.
  • UWSGI_LOG_X_FORWARDED_FOR (boolean): set the log-x-forwarded-for option.
  • UWSGI_GEVENT: enable the Python 2 gevent plugin
  • UWSGI_ASYNCIO (integer): enable the Python 2/3 asyncio plugin and set the number of tasks
  • UWSGI_INCLUDE_FILE: a uwsgi config file in the app's dir to include - useful for including custom uwsgi directives.
  • UWSGI_IDLE (integer): set the cheap, idle and die-on-idle options to have workers spawned on demand and killed after n seconds of inactivity.

Nginx Settings

  • NGINX_SERVER_NAME: set the virtual host name associated with your app
  • NGINX_CLOUDFLARE_ACL (boolean): activate an ACL allowing access only from Cloudflare IPs
  • NGINX_STATIC_PATHS: set an array of /url:path values
  • NGINX_HTTPS_ONLY: tell nginx to auto-redirect non-SSL traffic to SSL site
  • NGINX_INCLUDE_FILE: a file in the app's dir to include in nginx config server section - useful for including custom nginx directives.
  • NGINX_ALLOW_GIT_FOLDERS: (boolean) allow access to .git folders (default: false, blocked)

Acme Settings

  • ACME_ROOT_CA: set the certificate authority that Acme should use to generate public ssl certificates (string, default: letsencrypt.org)