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CEIclient - Command line tools for controlling CEI services

CEIclient offers command line tools to control the CEI services of the OOI CI infrastructure.

It currently consists of one command line program named ceictl, capable of controlling the following services:

  • the Provisioner
  • the EPU Manager
  • the Process Dispatcher

Usage

The general usage of ceictl is:

ceictl [options] <service> <command> <command arguments>

To interact with CEI services, ceictl uses an AMQP messaging system (specifically, a RabbitMQ deployment). Therefore, a user must provide the necessary variables to connect to this system. Three values are required:

  • a RabbitMQ broker address (hostname or IP),
  • a RabbitMQ username,
  • its corresponding RabbitMQ password.

A typical ceictl invocation will look like this:

ceictl -b $RABBITMQ_HOST -u $RABBITMQ_USERNAME -p $RABBITMQ_PASSWORD <service> <command> <command arguments>

Provisioner

To control the Provisioner, use the provisioner service name.

To provision a node with the sleeper DT in the Amazon EC2 US East region using a t1.micro instance type and the provisioning variables provided in the examples/provisioning_vars.json file:

ceictl provisioner provision sleeper ec2-east t1.micro examples/provisioning_vars.json

To describe nodes node1 and node2:

ceictl provisioner describe node1 node2

To describe all nodes:

ceictl provisioner describe

To terminate all nodes and shut down the provisioner:

ceictl provisioner terminate_all

EPU Manager

To control the EPU manager, use the domain service name.

To list all domains:

ceictl domain list

To describe the domain named domain1:

ceictl domain describe domain1

To reconfigure the domain named domain1 and change its engine configuration parameter preserve_n to the integer value 2:

ceictl domain reconfigure --int engine_conf.preserve_n=2 domain1

Boolean and string values can also be provided with the --bool and --string options.

Process Dispatcher

To control the Provisioner, use the process service name.

To dispatch a process for execution using the process specification in file examples/process_spec.yml:

ceictl process dispatch examples/process_spec.yml

To describe all processes:

ceictl list

To describe the process with PID pid1:

ceictl process describe pid1

To terminate the process with PID pid1:

ceictl process kill pid1
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