Running Environment

When an execution is dequeued by the Scheduler, it is passed to a new Runner. Each execution gets its own environment, inside a Docker container.

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Binaries

The Runner environment ships with the following binaries:

• google-chrome-stable
• doppler
• ffmpeg
• audiowaveform
• sox

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Reserved environment variables

The following Environment variables are reserved and will be overrided if configured on the environment’s settings.

• DEFER_TOKEN
• FORCE_COLOR
• NODE_DEBUG
• NODE_DEBUG_NATIVE
• NODE_DISABLE_COLORS
• NODE_EXTRA_CA_CERTS
• NODE_ICU_DATA
• NODE_NO_WARNINGS
• NODE_OPTIONS
• NODE_PATH
• NODE_PENDING_DEPRECATION
• NODE_PENDING_PIPE_INSTANCES
• NODE_PRESERVE_SYMLINKS
• NODE_REDIRECT_WARNINGS
• NODE_REPL_HISTORY
• NODE_REPL_EXTERNAL_MODULE
• NODE_SKIP_PLATFORM_CHECK
• NODE_TLS_REJECT_UNAUTHORIZED
• NODE_V8_COVERAGE
• NO_COLOR
• OPENSSL_CONF
• SSL_CERT_DIR
• SSL_CERT_FILE
• UV_THREADPOOL_SIZE

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Doppler integration

The Runner supports Doppler. If you set up the DOPPLER_TOKEN environment variable on your Defer environment, the Runner will recognize it and use Doppler to populate its env.

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Puppeteer support

The Runner ships with Google Chrome, allowing you to use Puppetter inside your background functions.

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Date and time

Inside a Runner container, the timezone is UTC.