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Pipe stuff to Loggly.

Project description
  • Eats lines from stdin.
  • Sends batches to Loggly (or compatible).
  • Poops unaltered lines to stdout.
  • Poops mark JSON to stdout.


loggly-pipe is built to be executed as a standalone file, so installing directly from the raw github URL works great:

curl -L -o loggly-pipe
chmod +x loggly-pipe

You can also grab it via pip, which will install a loggly-pipe executable:

pip install loggly_pipe


Configuration may be given via the command line or the env. The latest command line options are available like one might expect:

loggly-pipe --help

Here’s a list of the environment variables that are used as the option defaults:

  • LOGGLY_TOKEN REQUIRED one of the tokens from your Loggly account
  • LOGGLY_SERVER the base server URI (default
  • LOGGLY_SHIPPER_COUNT number of shipper threads (default 1)
  • LOGGLY_TAGS comma-delimited tags to apply to the shipped records. This is passed directly as the last member of PATH_INFO, so it should be URL-encoded if necessary. (default python)
  • LOGGLY_BATCH_SIZE number of records to accumulate before shipping over HTTP (default 100)
  • LOGGLY_MAX_LINES exit after consuming this many lines (default 0, which disables)
  • LOGGLY_STDIN_SLEEP_INTERVAL interval in seconds to sleep when line read from stdin is empty (default 0.1)
  • LOGGLY_FLUSH_INTERVAL interval in seconds at which to flush the line buffer so that low activity doesn’t cause records to back up (default 10.0)
  • LOGGLY_SHIP_ATTEMPTS number of times to retry each batch over HTTP (default 1)
  • LOGGLY_ON_ERROR behavior when exceptions are caught, which is usually around shipping over HTTP, and will only take effect once LOGGLY_SHIP_ATTEMPTS has been reached (choices are raise, ignore; default raise)
  • LOGGLY_DEBUG print some debuggy stuff if non-empty


Given a stdin stream made of line-based JSON records, loggly-pipe will emit each record unaltered as well as a record with a single _mark key for each batch.

Here’s an example of a node app that uses bunyan for logging as well as the bunyan command line tool for human readability:

node server.js | loggly-pipe | bunyan

A trivial example that’s used in the black-box test of loggly-pipe itself can be found in the examples dir.

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