mqtt.md

mqtt tooling

mqttfx (graphical pub/sub client for testing)

• install

brew cask install mqttfx

mosquitto - mqtt server / broker

• install

brew install mosquitto

• configure

vi /usr/local/opt/mosquitto/etc/mosquitto/mosquitto.conf

• homebrew service

less /usr/local/Cellar/mosquitto/1.6.10/homebrew.mxcl.mosquitto.plist

• manual startup

/usr/local/opt/mosquitto/sbin/mosquitto -c /usr/local/opt/mosquitto/etc/mosquitto/mosquitto.conf

• command line publisher publish client

/usr/local/opt/mosquitto/bin/mosquitto_pub 
/usr/local/opt/mosquitto/bin/mosquitto_pub -h localhost -p 1833 -t test/topic -m "this is a test"

easy-rsa

• setup CA

mkdir infra-ca
cd infra-ca/
./easyrsa init-pki
./easyrsa build-ca
vi vars
openssl x509 -noout -text /Users/hortoncd/git/home/easy-rsa/easyrsa3/pki/ca.crt
cat /Users/hortoncd/git/home/easy-rsa/easyrsa3/pki/ca.crt | openssl x509 -noout -text  | less

• generate and sign a server cert

./easyrsa gen-req mqtt.internal.opencod.in
./easyrsa sign-req server mqtt.internal.opencod.in
openssl rsa -in easyrsa3/pki/private/mqtt.internal.opencod.in.key -out easyrsa3/pki/private/mqtt.internal.opencod.in.ckey 
cat easyrsa3/pki/private/mqtt.internal.opencod.in.ckey | openssl rsa -text -noout | less

• generate and sign a client cert

./easyrsa gen-req chrome.internal.opencod.in
./easyrsa sign-req client chrome.internal.opencod.in
cat easyrsa3/pki/issued/chrome.internal.opencod.in.crt | openssl x509 -noout -text  | less
openssl rsa -in easyrsa3/pki/private/chrome.internal.opencod.in.key -out easyrsa3/pki/private/chrome.internal.opencod.in.ckey 

test script for publishing

bash ./pub-test test/topic specific test from command line

ruby script for testing (initially only subscribing)

mkdir lita-mqtt
cd lita-mqtt
vi Gemfile
bundle install --path ./vendor
vi test.rb
bundle exec ./test.rb