A logstash-forwarder script that does a docker build, creates new certs, names the container from the working dir, finds the correct image name and does a docker run on it.

run.sh

#!/bin/bash

if [ ! $1 ]; then
	echo "! fail - no logdestination at $1 - need hostname:port of log server"; exit 1
fi

if [ ! -f Dockerfile ]; then
	echo "! fail - no Dockerfile file found"; exit 1
fi

docker_name=`printf '%s\n' "${PWD##*/}"`

example_conf="$docker_name.conf.example"

if [ ! -f $docker_name.conf.example ]; then
	echo "! fail - no $example_conf file found "; exit 1
fi

new_conf="$docker_name.conf"
cat $example_conf | sed -e "s/@DOCKER_NAME@/$docker_name/" | sed -e "s/@REMOTE_NAME@/$1/" > $new_conf

echo " -> creating certs..."
openssl req -x509 -batch -nodes -newkey rsa:2048 -keyout $docker_name.key -out $docker_name.crt

echo " -> uploading certs to consul..."
key_value_url="http://localhost/consul-8500"
echo "   -> crt..."
curl -L $key_value_url/v1/kv/services/logging/logstash/ssl_certificate -XPUT --data-urlencode $docker_name.crt
echo "   -> key..."
curl -L $key_value_url/v1/kv/services/logging/logstash/ssl_private_key -XPUT --data-urlencode $docker_name.key

echo " -> building docker image from Dockerfile..."
docker build .
image_id=`docker images |head -n2 | tail -n1 | awk '{print $3}'`

echo " -> running docker container..."
pit=`date +'%Y%m%d-%H%M%S-%N'`
docker run -d --name $docker_name-$pit -v /var/lib/docker:/var/lib/docker:ro -v /var/run/docker.sock:/var/run/docker.sock $image_id -logstash="$1"

echo " -> cleanup..."
rm $new_conf; rm $docker_name.crt; rm $docker_name.key

exit 0