steth/docs/quickstart.rst

Quickstart

Steth is an inspection tool that can aid in pinpointing issues before deployment and during operation of an OpenStack environment.

It is modelled as agent(s)/client in which a controller interacts with agents deployed in your environment. Let me introduce how to use steth.

Download code

Download the latest code from git repository. And run python setup.py install to install steth. After running that, you can steth --help to confirm Steth is installed correctly.

Before Deploy

Before deploy Steth Agent and Steth Client, you should make sure you have installed all dependencies to run Steth. If you plan to deploy Steth on Ubuntu, you should install python-dev and libpcap-dev in your machine before you run pip install -r requirements.txt.

Deploy Steth Agent

Steth Agent listens in 0.0.0.0:9698 on any node you want. It will wait for RPC request. Currently we support CentOS 6.5, CentOS 7.0 and CentOS 7.1 only. In CentOS 6.5, you should run service steth-agent start to start steth-agent. In CentOS 7.0 and 7.1, you should run systemctl start steth to start steth-agent.

Deploy Steth Client

Steth Client is a stateless program. You can run steth --help to show all steth commands that you can run.

Configuration File

On start the client will read a configuration file. By default the configuration file is located at /etc/steth/steth.conf.

Here is an example of the configuration file

[DEFAULT]
# (ListOpt) list of networks types.
# We may have multi network types in one node, such as mgmt, net and stroage.
# so this value should be a list.
# We seperate each item by ":". Treat first item as network type.
# The second is physical nic name. And the third is network_prefix.
# Example: "mgmt:eth0:1.1.1.,net:eth1:2.2.2.,storage:eth2:3.3.3."
network_types=mgmt:eth0:1.1.1.,net:eth1:2.2.2.,storage:eth2:3.3.3.

# (ListOpt) All nodes info. Just need sequence number.
# Example: 64, 65, 66
nodes_id=39,233,64,65,66

# (StrOpt) Name prefix of every node. By default, this value
# is "server". We combine "node_name_prefix" with
# "nodes_id", to define nodes. Such as "server-64", "server-68"
# and so on. In every region, we give every node a specific name.
# Ensure that DNS can resolve the nodes.
node_name_prefix=server-