Fixed errors in Mq-Adapter, shortened pom, added new Extractor, Changed InstanceInfo extractor

See merge request !141

changing version of client

See merge request !135

EMS: Broker-CEP, Control Service: Added an extra argument in...

See merge request !133

EMS: Broker-CEP, Control Service: Added an extra argument in 'BrokerCepService.publishSerializable()' methods to control if conversion to JSON is needed.

Removed from .gitlab-ci.yml the unneeded specs about EMS

See merge request !132

EMS RC2.0

See merge request !127

EMS: Control Service: Fixed TopicBeacon to *not* send slo-violation-detector events, if they are going to be empty. Added model version in prediction orchestrator and slo-violation-detector events.

EMS: Control Service: Changed TopicBeacon to *not* send prediction or slo-violation-detector events, if they are going to be empty

User data

See merge request !130

automate byon

See merge request !128

EMS: Baguette Server: Added  'IClusterZoneDetector' interface. Moved 'getZoneIdFor()' methods from 'IZoneManagementStrategy' to the newly added 'IClusterZoneDetector' interface. Removed 'getZoneIdFor()' methods from the classes implementing 'IZoneManagementStrategy'. Added 'ClusterZoneDetector' class, implementing 'IClusterZoneDetector', that determines the cluster/zone id of a node based on node's preregistration info, using a configurable set of rules. Updated 'ClusteringCoordinator' to initialize and use a 'ClusterZoneDetector' instance for determining cluster/zone id, instead of using 'IZoneManagementStrategy' instance. Added sample settings for cluster detector in 'eu.melodic.event.baguette-server.properties'. A few more code and setting improvements.

EMS: Baguette Server: Changed 'ClientShellCommand.run()' method to catch all exceptions during interaction with EMS clients, and exit gracefully.

EMS: Added README-for-TESTING.md file with descriptions of Test Cases for new EMS features (i.e. support for Resource-Limited nodes, and support for Self-Healing of monitoring topology). [WIP]

EMS: config-files: Improved 'netdata.json' and 'start-agents.json' instruction sets to distinguish between Netdata instances running locally or in a container (and ignore them)

EMS: Broker-CEP: Added initialization retry (every 5 seconds until it succeeds) in BrokerAdvisoryWatcher

EMS: Baguette Server: Bugfix in 'getClientShellCommandFromNodeRegistryEntry()' method of BaguetteServer class

EMS: Baguette Server: Bugfix in 'getNodeRegistryEntryFromClientShellCommand()' method of BaguetteServer class, and also commented out the insecure retrieval of NRE based on client id

EMS: Common: Renamed field 'ignoreLocal' to 'skipLocal' in NetdataCollectorProperties and updated affected code in NetdataCollector

EMS: Common, Baguette Server, Control Service: Added NetdataCollector to EMS server. Added method 'supportsAggregators()' in ServiceCoordinator interface in order to allow EMS server determine if a Top Level NetdataCollector is required. Extended the NetdataCollector implementation in 'common' module, so that it can be configured to skip collection from local node (EMS server Docker image does not include a Netdata agent). Updated 'eu.melodic.event.control.properties' configuration file.

EMS: Common, Baguette Client: Moved NetdataCollector and NetdataCollectorProperties from 'baguette-client' to 'common' module. Added CollectorContext interface as an abstraction of Collectors' environment, and also added 'ClientCollectorContext' class that provides an implementation of it of baguette clients. Updated pom.xml files

EMS: Broker Client, Baguette Client, Util: Added password encoding in BrokerClient. Added 'publishEventWithCredentials()' methods in BrokerClient and used them in EventGenerator. Made BaguetteClient and EventGenerator spring boot beans. Fixed a bug in CommandExecutor that passed wrong broker url to EventGenerator, and also added broker credentials. Few more code improvements.

EMS: Baguette Client: Updated the code wired recovery commands to the configuration. Updated logback-spring.xml

EMS: Baguette Client: Synchronized configuration between 'config-files' and 'baguette-client/conf' folders.