What is this?

This is a logspout adapter that will parse logs for metrics and forward them to statsd.

Trying it out

You can test this by running through the following walkthrough.

NOTE: If you're on a mac, replace localhost below with your docker-machine ip.

First, start up stats/graphite with this prebuilt image:

docker run -d\
 --name graphite\
 --restart=always\
 -p 80:80\
 -p 2003-2004:2003-2004\
 -p 2023-2024:2023-2024\
 -p 8125:8125/udp\
 -p 8126:8126\
 hopsoft/graphite-statsd

Test if it's working:

echo "foo:1|c" | nc -u -w0 localhost 8125

Go to http://localhost/dashboard, you should see stats.foo.

Copy the files in the custom-build in this repo, then run:

docker build -t mylogspouter .

Now start up logspout with new module, replace the papertrail URL to your own account.

docker run --rm --name=logspout \
     -v=/var/run/docker.sock:/var/run/docker.sock \
     -p 8000:80 \
     mylogspouter \
     syslog://logs.papertrailapp.com:55555

Now we have to add the statsd route;

curl http://localhost:8000/routes -d '{
  "adapter": "statsd",
  "filter_sources": ["stdout" ,"stderr"],
  "address": "localhost:8125"
}'

Now run our emitter image to test:

docker run --rm iron/emitter 

You should see some logging messages in papertrail and some metrics in graphite!

Any log line from any container that contains a metric key will be forwarded to statsd, so your applications should output log lines like this:

metric=someevent value=1 type=count
metric=somegauge value=50 type=gauge

Development of this module

See iron-io's fork of logspout and read MODULES.md.

Copy run-logspout.sh to the logspout dir and run it with:

SYSLOG=syslog://logs.papertrailapp.com:55555 ./run-logspout.sh`