Installing C++ Agent on Ubuntu
Installation procedure for running MTConnect Agent on ubuntu 14.04 LTS. This is a general guide and covers the basic configuration of the MTConnect simulator.
Install Required Dependencies
The C++ agent depends on libxml2 and for testing libcppunit. The rest are the standard packages for building software. We also use cmake to generate the make files.
sudo apt-get update sudo apt-get install libxml2 libxml2-dev cmake git libcppunit-dev build-essential screen ruby curl
Download and build the agent
Make a directory for the agent work and our build directory
mkdir -p ~/agent/build cd ~/agent
Use git to clone the agent from the repo, init and update the submodules and create the makefiles. We're going to be building the Release version; a debug version can also be built, refer to the cmake docs for more info.
git clone https://github.com/mtconnect/cppagent.git cd cppagent git submodule init git submodule update cd ../build cmake -D CMAKE_BUILD_TYPE=Release ../cppagent/
Now build the app and install it in /usr/local/bin
make sudo cp agent/agent /usr/local/bin
There may be a few build warnings, these can be ignored.
Setup a configuration directory
Setup the agent
sudo mkdir -p /etc/mtconnect/agent /etc/mtconnect/adapter cd ~/agent/cppagent sudo cp -r styles schemas simulator/VMC-3Axis.xml /etc/mtconnect/agent
Setup the simulator
sudo cp simulator/VMC-3Axis-Log.txt simulator/run_scenario.rb /etc/mtconnect/adapter
Configure the Agent
Install the text file below for the configuration. To do this copy and paste the code into a new text document. Line numbers as seen below are added from the copy and paste process, get rid of them as they are not part of the actual code. Copy and paste the edited text into the Terminal and press enter.
sudo sh -c 'cat <<EOT > /etc/mtconnect/agent/agent.cfg
Devices = /etc/mtconnect/agent/VMC-3Axis.xml
AllowPut = true
ReconnectInterval = 1000
BufferSize = 17
SchemaVersion = 1.5
Host = 127.0.0.1
Port = 7878
Path = /etc/mtconnect/agent/schemas
Location = /schemas/
Path = /etc/mtconnect/agent/styles
Location = /styles/
Path = /etc/mtconnect/agent/styles/favicon.ico
Location = /favicon.ico
Location = /styles/Streams.xsl
# Logger Configuration
logging_level = info
output = file /var/log/mtc_agent.log
Check your work. In the first line of the text file above, "/etc/mtconnect/agent/agent.cfg" is the location where the file is saved. Open the file manager and navigate to that location. If you entered the code right, you should see the "agent.cfg" file. Open the file and make sure it looks just like the text above and proceed.
Test the agent config from the command line.
agent debug /etc/mtconnect/agent/agent.cfg
If it works, you should see something like:
MTConnect Agent Version 22.214.171.124 - built on Thu Sep 4 00:22:34 2014 0 INFO  init.config: Starting agent on port 5000 5 INFO  init.config: Adding adapter for VMC-3Axis on 127.0.0.1:7878 6 DEBUG  agent: registerFile: Path /etc/mtconnect/agent/styles/favicon.ico is not a directory: Unable to find directory /etc/mtconnect/agent/styles/favicon.ico, trying as a file 6 DEBUG  input.connector: Connecting to data source: 127.0.0.1 on port: 7878 6 WARN  input.connector: connect: Socket exception: unable to connect to '127.0.0.1:7878' 6 INFO  input.adapter: Will try to reconnect in 1000 milliseconds 1006 DEBUG  input.connector: Connecting to data source: 127.0.0.1 on port: 7878 1007 WARN  input.connector: connect: Socket exception: unable to connect to '127.0.0.1:7878' 1007 INFO  input.adapter: Will try to reconnect in 1000 milliseconds
Setup the systemd scripts
Just like configuring the agent above, install the following text files.
The systemd script to start the agent:
sudo sh -c 'cat <<EOT > /etc/systemd/system/mtc_agent.service
ExecStart=/usr/local/bin/agent run /etc/mtconnect/agent/agent.cfg
The systemd script for the adapter:
sudo sh -c 'cat <<EOT > /etc/systemd/system/mtc_adapter.service
ExecStart=/usr/bin/ruby /etc/mtconnect/adapter/run_scenario.rb -l /etc/mtconnect/adapter/VMC-3Axis-Log.txt
NOTE: Update your *WorkingDirectory* in the systemd scripts above if different. Similarly if the *ExecStart* line of code doesn't execute, make sure the full paths of the files/executables are correct.
Cycle the power (reboot) and proceed.
Start the services
Start both services
sudo systemctl start mtc_agent sudo systemctl start mtc_adapter
Look for the processes
pgrep -a ruby pgrep -a agent
Test the services
Use the enable command to ensure that the service starts whenever the system boots
sudo systemctl enable mtc_agent sudo systemctl enable mtc_adapter