645eb99e30
- Use labels instead of node names for component affinities. - Keep track of edge or byob machines: do not assign them more than once, even across redeployment generations. - Add `getCluster` endpoint, use it. - Add `labelNodes` endpoint, use it. - Make detection of SAL errors more robust: use `/metaData/status` field containing the HTTP response code. - Introduce per-app short cluster id. - Make node names globally unique. Change-Id: Id62d6e1c6939eb2f1b33b9b2062b574f7e90ff30
The NebulOuS optimizer controller
This module serves two purposes:
-
When a new NebulOuS application is started, set up the initial optimizer infrastructure, parse the application structure and metric model, and pass an initial resource configuration (“Optimized Service Graph”) to the Deployment Manager.
-
When an application is running, monitor the application-specific metrics coming in via ActiveMQ and invoke the optimizer as needed, thereby possibly triggering application reconfigurations.
The nebulous-requirements-extractor library
This library offers the utility class KubevelaAnalyzer that extracts
component requirements from KubeVela files. This code is used both in the
optimiser-controller and in other components of the NebulOuS optimiser.
The library will be built and deployed automatically as part of the build process of the optimiser-controller.
Building
To compile, install a JDK (Java Development Kit) version 17 or greater on the build machine.
# Compile:
./gradlew assemble
# Compile and test:
./gradlew build
Building the container
A container can be built and run with the following commands:
docker build -t optimiser-controller -f Dockerfile .
docker run --rm optimiser-controller
Running
To run, install a JRE (Java Runtime Environment) version 17 or greater.
A successful build creates the jar file dist/optimiser-controller-all.jar.
This file is self-contained and can be executed via the following command:
java -jar optimiser-controller/dist/optimiser-controller-all.jar
Running in jshell
The command ./gradlew --console plain jshell opens a REPL (read-eval-print
loop) with the package eu.nebulous.optimiser.controller pre-imported. On
the REPL, one can write Java snippets such as:
SalConnector conn = new SalConnector(new URI("http://localhost:8088"));
conn.isConnected();
For command-line editing and history support, use the rlwrap command:
rlwrap ./gradlew --console plain jshell.