StackState Process Agent

Installation

See the Live Processes docs for installation instructions.

Development or running from source

Pre-requisites:

• go >= 1.10.1
• rake

Check out the repo in your $GOPATH

cd $GOPATH/StackVista
git clone git@github.com:StackVista/stackstate-process-agent
cd stackstate-process-agent

Pull down the latest dependencies via dep and build the process-agent:

rake local_build

You can now run the Agent on the command-line:

sudo ./process-agent -config $PATH_TO_PROCESS_CONFIG_FILE

Regenerating proto files

If you modify any of the .proto files you must rebuild the *.pb.go files.

Make sure protobuf 3.6.1.3 is installed, typically has to be built from source: https://github.com/protocolbuffers/protobuf/tree/v3.6.1.3

Make sure you install the gogo-proto binaries from the go mod directory:

cd $GO_PATH/pkg/github.com/gogo/protobuf@1.3.2
make install

Make sure $GO_PATH/bin is in the PATH.

and then:

rake protobuf

Working with the datadog dependency

The prebuild-datadog-agent'sh script is in charge of prebuilding artifacts for the main build. See --help there.

Working against a local copy

Run ./update-datadog-dependency.sh -l <path> to work with a local checkout of the upstream datadog agent.

Updating the upstream reference

Run ./prebuild-datadog-agent.sh -t to assure the tests pass (these do not run in CI due to the deep integration with the host system). After pushing a change to datadog-agent-upstream-for-process-agent be sure to run ./update-datadog-dependency.sh -b <branch> with the updated branch/tag.

Test cycle for the datadog dependency

Use ./update-datadog-dependency.sh -l <path> to work against a local checkout of datadog-agent-upstream-for-process-agent Run ./prebuild-datadog-agent.sh -s to get into the build shell.

Rerun /scripts/rune-datadog-agent-test.sh rerun to keep running the tests after a change was made Rerun /scripts/rune-datadog-agent-prebuild.sh rerun to keep building the output artifacts after a change was made

Development or Running with Vagrant

There is a Vagrantfile in the root directory, that can be used to create a vagrant vm where the StackState process agent can be run.

$ vagrant up process-agent-test
...
$ vagrant ssh process-agent-test
$ cd $GOPATH/src/github.com/StackVista/stackstate-process-agent

You can up the memory and pre-install some processes at boot of the Vagrant vm with:

$ MEM="2048" PROCESSES="java mysql postgresql tomcat" vagrant up process-agent-test

Testing

Instructions related to manual testing can be found in Testing.md

Contributing

In order for your contributions you will be required to sign a CLA. When a PR is opened a bot will prompt you to sign the CLA. Once signed you will be set for all contributions going forward.