CHANGELOG.rst

Changelog

All notable changes to the kytos project will be documented in this file.

UNRELEASED - Under development

Added

• Unhandled exception on a listen_to decorated function (running in a ThreadPool) is logged as error.

• New --database configuration option that supports mongodb

• MongoDB client for NApps, Mongo available on kytos.core.db module

• Added a wait mechanism during controller startup time to ensure the database is reachable if it's been configured

• pymongo and pydantic (for database models) are now core dependencies

• Added MongoDB environment variables MONGO_HOST_SEEDS, MONGO_USERNAME, MONGO_PASSWORD

• Added optional MongoDB environment MONGO_DBNAME, MONGO_MAX_POOLSIZE, MONGO_MIN_POOLSIZE, MONGO_TIMEOUTMS

• Added a docker-compose.yml file for local development to compose with MongoDB replica set cluster

• Added an in-memory dead letter structure for unhandled exceptions of KytosEvents indexed by their names

• Added core endpoints for the dead letter structure:

  GET /api/kytos/core/dead_letter/?event_name=<name>
  PATCH /api/kytos/core/dead_letter/ (requires request body)
  DELETE /api/kytos/core/dead_letter/ (requires request body)

• Added tenacity as a core dependency for retries.

• New --apm configuration option that supports elasticsearch APM (Application Performance Monitoring)

• kytosd Elastic APM integration provides instrumentation for MongoDB, Flask, requests and KytosEvent

• @begin_span decorator for on-demand APM custom functions/methods instrumentation

• Augmented docker-compose.yml to also spin up Elastsearch, Kibana and APM server with authentication

• Augmented docker-compose to also spin up Filebeat, integrating log file as input

• The listen_to decorator now supports a pool keyword argument to specify which thread pool the execution should be submitted

• New core kytos.core.retry module provides decorators for retries based on tenacity

• Unhandled exceptions on @listen_to decorator now also include a traceback

• Added @alisten_to decorator for async methods. NApps can subscribe to events asynchronously with this decorator as needed.

Changed

• Kytos controller can shutdown if the database is configured but not reachable during startup time.

• Augmented KytosEvent with internal attributes (id and reinjections), no breaking changes.

• KytosEvent now optionally supports a trace_parent argument for APM distributed tracing to also instrument and correlate KytosEvent.

• Added file formatter and file handler boilerplate on logging.ini.template to facilitate hooking the file handler on logger_root and logger_kytos as needed.

• Broke compatibility in the thread_pool_max_workers, it uses a dict now instead of a single integer. If you were using a single integer for a global pool, please migrate it to {"sb": 256, "db": 256, "app": x}, where x should be the value that you used to use or the default 512.

• The following pools are available by default to be used in the listen_to decorator with the pool option:

  sb: it's used automatically by kytos/of_core.* events, it's meant for southbound related messages
  app: it's meant for general NApps event, it's default pool if no other one has been specified
  db: it can be used by for higher priority db related tasks (need to be parametrized on decorator), it's also used automatically by kytos.storehouse.* events

• msg_out core queue now leverages a PriorityQueue instead of a FIFO Queue.

• msg_in core queue now leverages a PriorityQueue instead of a FIFO Queue.

Deprecated

Removed

Fixed

• Fixed file already exists error when creating config dirs, issue 222

Security

[2022.1.1] - "jovelina" - 2022-02-01

Fixed

• Load NApps ordered by modification, allowing the administrator to set a desired order of loading.

[2022.1] - "jovelina" - 2022-01-21

Changed

• New README reflecting the change to Kytos NG.

[2022.1rc1] - "jovelina" - 2022-01-14

Added

• Support python 3.9.
• Method to create or update interface.

Changed

• Run tests using GitHub Actions.

Fixed

• Lock to avoid race conditions when selecting a tag.
• Lock to avoid race conditions when getting or creating a Switch.

[2021.1] - "final" - 2021-05-31

Added

• New blueprint: EP023 - Kytos Pathfinder Filter Paths by Metadata.

Changed

• Renamed shutdown REST endpoint to _shutdown and improved its description.
• Fixed Switch class docstrings.

Fixed

• Fixed RuntimeError when shutting down Kytos.

[2021.1rc1] - "final" release candidate 1 - 2021-04-30

Added

• New blueprint: EP022 - Kytos reports statistics.
• New method from_dict to instantiate Interface, UNI, Link and Switch classes from python dictionary.
• Log uncaught exceptions to console and/or log files.
• New log message when handling errors at superuser creation.
• Added file to provide support for Dependabot.
• [docs] New documentation for consistency system.

Fixed

• [tests] Fix PID value to fix errors in unit test execution (fix #1242).
• [tests] Fix pytest-runner error raised by Scrutinizer CI.
• [docs] Fixed warning in code-block section in auth documentation.

Security

• Updated dependencies.

[2020.2] - "itamar" stable release - 2020-12-30

No changes since rc1.

[2020.2rc1] - "itamar" release candidate 1 - 2020-12-23

Added

• Added event to notify when a NApp was loaded.
• [docs][ui] Added k-notification component and its event docs.
• [docs][ui] Added table that lists the Kytos standard colors.

Fixed

• [docs] Fixed the cells' order when the Blueprints table is generated.

Changed

• [docs] Updated k-context-panel and k-table images and usage examples.

[2020.2b3] - "itamar" beta3 - 2020-11-20

Added

• Added configuration field to change token expiration time in REST API authentication.
• [ui] New UI component: Notification.
• [ui] Added info-panel toggle button in tabs component.
• [ui] Added close button to info-panel component.
• [docs] Added a new "Blueprints" section to the Dev Guide.
• [docs] New section about implementation of compressed and expanded formats for toolbar components UI.

Changed

• Refactor method get_interface_by_port_no to work with both``v0x01`` and v0x04 port parameters.
• [ui][docs] Updated components' docs: accordion, tooltip and title.
• [ui][docs] Updated usage example for the event component
• [docs] Updated admin guide with parameter to create a superuser.
• Changed stability badge in PyPI from experimental to beta.

Fixed

• Fixed double loading of NApps when installing via kytos napps install
• Fixed daemon configuration that was being ignored
• [ui] Fixed overlay between tabs component and other components.

[2020.2b2] - "itamar" beta2 - 2020-10-23

Added

• Added authentication to REST methods based on configuration option
• Create config field on Interface
• Added new exception KytosLinkCreationError
• [docs] Created a template blueprint - EP000
• [docs] Added of_lldp's new REST Endpoints
• [docs] Added "Kytos UI Components" section to Dev Guide
• [docs] New note about the creation of UI folders
• [tests] Added pydocstyle as a required linter

Changed

• [docs] Updated old blueprints to include standard headers
• [docs] Moved section "Creating a NApp with UI" to the Web-UI documentation
• [docs] Use friendlier apt command instead of apt-get
• [docs] Updated Authentication documentation
• [docs] Updated tutorial "How protect a REST endpoint"
• [tests] Changed tests to use multiple-letter keys in mock link metadata

Removed

• Removed hard-coded python3.6 references
• [packaging] Remove the use of distutils from setup.py

Fixed

• Improved support for newer versions of Python
• Fixed exception when kytosd cannot update the web UI from GitHub
• Fixed parsing of vlan_pool configuration option
• [tests] Fixed test_logs for Python 3.8
• [tests] Fixed automated packaging tests under GitHub Actions

[2020.2b1] - "itamar" beta1 - 2020-09-08

Added

• Added Blueprints section to the "How to Contribute" guide.

Fixed

• Fixed bug when two NApps had methods with the same name decorated with the @rest decorator.
• Fixed authentication URLs in documentation.
• Fixed interface tests.

Changed

• Changed dev requirements to install run requirements.
• Changed Makefile to use python3 instead of python3.6.
• Updated .travis.yml to use newest pip dependency resolver for tests.
• Changed setup.py to alert when a test fails on Travis.

[2020.1] - "helena" stable - 2020-08-07

Added

• Improve unit tests coverage from 55% to 93%.
• Added new method to handle HTTPException - now it returns a JSON with an error code.
• Added tags decorator to run tests by type and size.
• Added instruction for opening issues with traffic files in Dev Guide.
• Added Pull Request Guidelines to the Developer Guide.

Fixed

• Fixed duplicated endpoint error in available_vlans method.
• Fixed error when creating an EVC without a Tag.
• Fixed packaging error by changing the six version.

Changed

• Updated setup.py to use native setuptools install.
• Make speed property checks compliant with OF1.3 spec.
• Updated controller mock method to accept loop parameter.
• Changed API server status HTTP code to 200.
• Updated documentation images, dates and links.

[2020.1rc1] - "helena" release candidate 1 - 2020-06-17

Added

• Added doc listing all the REST APIs available on Kytos Core + NApps

Fixed

• Fixed random error on concurrent tests, waiting for threads to finish before testing.

Changed

• Return the original HTTP error code when a NApp is not found in the NApp server
• Link.get_next_available_tag() now raises an exception (instead of returning False) when there is no available tag

[2020.1b3] - "helena" beta3 - 2020-05-19

Added

• Added a new kytos.lib.helpers module to be used by NApps as an utility for tests.
• [kytos/topology] Added persistence for switches and interfaces administrative status (enabled/disabled).
• [kytos/topology] Added REST APIs to enable/disable all interfaces from a switch.
• [kytos/topology] Added listeners for events from the Maintenance NApp.
• [kytos/of_core] Added tag decorators for small/medium/large tests.

Changed

• [packaging] Changed Makefile to clean old web-ui builds.

Fixed

• [kytos/topology] Avoid using flapping links: now a link is considered up only after a specific amount of time (default: 10 seconds).
• [kytos/topology] Fixed switches coordinates on the map.
• Fixed 22 linter issues raised after the pylint upgrade.

[2020.1b2] - "helena" beta2 - 2020-04-08

Added

• Added shorter README file to use on PyPI description.

Changed

• Upgraded versions for all dependencies
• kytosd now create configuration only in post-install - #1042

Fixed

• Fixed SandboxViolation when installing Kytos as a dependency from PyPI - #494
• Fixed install from wheel package format- #922
• Fixed "There is no config file." error when starting kytosd - #951

[2020.1b1] - "helena" beta1 - 2020-03-09

Added

• New unit tests for NApps:

  • kytos/kronos, coverage increased from 0% to 31%
  • kytos/mef_eline, coverage increased from 67% to 70%
  • kytos/of_core, coverage increased from 28% to 47%

• New blueprint: EP018 - Kytos testing pipeline and definitions.
• Added long description field for display in pypi.org.

Fixed

• Fixed Scrutinizer coverage error.

[2019.2] - "gil" stable - 2019-12-20

Changed

• Increased token expiration time in auth module.

[2019.2rc1] - "gil" release candidate 1 - 2019-12-13

Added

• New etcd backend for the Storehouse NApp (experimental)
• NApps Server now has e-mail verification and password reset for devs
• Added python-openflow unit test coverage section to Kytos Dev guide

Fixed

• Fixed duplicated logs (#993)
• Fixed exception handling during NApp setup which could cause locks on kytosd shutdown (#1000)

[2019.2b3] - "gil" beta3 - 2019-12-06

Added

• New Authentication module - REST endpoints can now be protected using the @authenticated decorator.
• New unitests to the Authentication module.
• New /metadata REST endpoint to access package metadata. kytos-utils now uses this to look for version mismatches.

Changed

• Blueprint EP018 - Updated endpoints to configure Authentication module.

Fixed

• Fix kytos installation without virtual env (eg.: sudo).

[2019.2b2] - "gil" beta2 - 2019-10-18

Added

• New blueprint: EP018 - API Authentication.
• New blueprint: EP019 - Improvements on Statistics Metrics Collections.
• New blueprint: EP020 - Data and Settings Persistence.

Changed

• Changed loggers to begin the hierarchy with "kytos."
• Modify the kytos developer mode to check the installation of configuration files.
• Blueprint EP016: Changed layout and improvement ideas.
• Blueprint EP017: More details on OpenFlow errors.

[2019.2b1] - "gil" beta1 - 2019-08-30

Added

• Interface objects have a new boolean lldp attribute (default True). Other applications can look at this attribute to determine the LLDP behavior.

Changed

• Improved installation of dependencies - pinned versions for dependencies in the production and developer install modes.

[2019.1] - "fafa" stable - 2019-07-12

• This is the stable "fafa" version, based on the last beta pre-releases. No changes since the last rc1.

[2019.1rc1] - "fafa" rc1 - 2019-07-05

Added

• Added Makefile for packaging and uploading to PyPI
• Added string representations to Switch and Interface
• New unit test for TCP server exceptions

Changed

• pytest is now the default tool for Kytos' unit tests
• Invalid command-line parameters emit warnings instead of halting kytosd start

Fixed

• Fixed traceback when a switch loses connectivity

[2019.1b3] - "fafa" beta3 - 2019-06-17

Added

• Added REST API endpoints to manage NApps from remote applications
• New kytos/kronos NApp was released. This NApp will be responsible for handling time series data, with initial support for InfluxDB (EXPERIMENTAL). For now on, visit kytos/kronos changelog for updates.

Changed

• kytos-utils is now decoupled from kytos core
• Changed default Openflow TCP port to 6653

Removed

• Removed diraol's watchdog fork dependency

Fixed

• Fixed kytos install from PyPI. Now dependencies are properly installed
• Fixed some grammar errors in documentation
• Fixed some linter issues

Security

• Changed some dependencies versions in order to fix security bugs

[2019.1b2] - "fafa" beta2 - 2019-05-03

Added

• Added MEF E-Line Link Up/Down definition blueprint
• Added documentation about using tox for unit tests

Fixed

• Fixed bug when starting kytosd in background (#893)
• Fixed method get_next_available_tag under concurrent scenarios
• Fixed warning when compiling documentation

[2019.1b1] - "fafa" beta1 - 2019-03-15

Added

• Added vlan_pool configuration on kytos.conf to support mef_eline. Now you can configure available vlans per interface
• Added documentation to describe how to create a Meta Napp
• Added documentation about Unit Tests

Changed

• Updated documentation to install python-openflow, kytos-utils and kytos in that order
• Updated documentation to use pip3 instead pip
• Link id is now based on endpoints hashes, instead of a random uuid. This fixes #875

Deprecated

Removed

• Removed circular dependency of kytos-utils
• Removed unnecessary comparison on interfaces if they are on the same switch

Fixed

• Fixed type declaration that broke sphinx-build
• Fixed some linter issues
• Fixed NApps settings reload. Now when you change a NApp settings the reload it will work

Security

• Updated pyyaml and requests requirements versions, in order to fix vulnerabilities

[2018.2] - "ernesto" stable - 2018-12-30

• This is the stable "ernesto" version, based on the last beta pre-releases. No changes since the last rc1.

[2018.2rc1] - "ernesto" rc1 - 2018-12-21

Added

• Support for meta-napps (EXPERIMENTAL)

[2018.2b3] - "ernesto" beta3 - 2018-12-14

Added

• Added support to reuse VLAN pool configurations on Interface
• Added support for serialization of Link instances

Changed

• Improved test coverage
• Blueprint EP015 (system tests) improved

[2018.2b2] - "ernesto" - 2018-10-15

Changed

• Improved test coverage

Fixed

• Removed warnings for invalid port speed (fix #754)
• Fixed port speed on web user interface
• Update console to support IPython 7

[2018.2b1] - "ernesto" - 2018-09-06

Added

• Added methods to list all NApp listeners.

Changed

• Blueprint EP12.rst updated in order to describe patch and delete operations.

Fixed

• Fixed compatibility of Python 3.7
• Fixed some linter issues.

[2018.1] - "dalva" - 2018-07-19

Fixed

• Fixed napps pre-installed with default value.

[2018.1b3] - "dalva" beta3 - 2018-06-15

Added

• Added reload/<username>/<napp_name> endpoint to reload the NApp code
• Added reload/all endpoint to update the NApp code of all NApps
• Kytos console display the kytos version.
• Added method __repr__ on Napp class.
• Added method __eq__ on UNI class.
• UNI and TAG has method as_dict and as_json.
• Added method get_metadata as_dict.
• Added method to return all available vlans.
• Added method to return a specific interface by id.
• Added pre-install napps method.
• Added a better introduction of dev and admin guides.
• Better handling of active/enabled in Switch/Interface/Links entities.

Changed

• Better handling of broken napps.
• Refactored load_napps method.
• Refactored get_time to return a datetime with UTC
• Migrated event handler threads to the main asyncio loop.
• Improve documentation to use kytos sphinx theme.

Fixed

• Some documentation docstrings.

[2018.1b2] - "dalva" beta2 - 2018-4-20

Added

• Added str and repr methods for KytosEvent and Connection classes to be easy to see logging and debugging information.
• Added web/update/<version>/ endpoint to update Kytos Web Interface with a specific version.
• Added asyncio support in tcp server and controller. API Server, ipython, event handlers and event notifications are still running on separate threads.

Changed

• Changed the components name provided by Kytos NApps to use the pattern: {username}-{nappname}-{component-section}-{filename}

Fixed

• Fixed some docstrings and comments

[2018.1b1] - "dalva" beta1 - 2018-3-09

Added

• Added some new blueprints (EP012, EP013 and EP014)
• Now, we have few Entities inside the core (Switch, Interface and Link)
• Each Entity has metadata attribute (a dict)
• Added link attribute to the Interface class
• GenericEntity itself was added in this version also
• Added 'active' and 'enable' flags to GenericEntity (EP013)
• Added 'enable'/'disable' methods to child GenericEntity classes (EP013).
• Define available_tags according to link's interfaces.
• Endpoint ('/ui/all') to display a json with all napps ui components.
• Endpoint ('/ui/<path:filename>') to get file with a specific napp component.
• Now, kytosd is a python module, to make it easy to run with asyncio on the future;
• This pre-release implements EP013 and EP014 as discussed on our last Kytos Dev Meeting.

Changed

• Moved Interface class to interface.py file
• Small refactor of Switch class.

Fixed

• Some bug fixes

[2017.2] - "chico" - 2017-12-21

Changed

• Web User Interface totally updated, with new design and functionality:
  • Visual elements reorganized for better experience.
  • Better information about switches and interfaces in the network.
  • Extending interface functionalities became easier.

[2017.2b2] - "chico" beta2 - 2017-12-01

Added

• @rest decorator can also be used before @classmethod or @staticmethod.
• Remove napp endpoints when a napp is disabled.
• TCP Server OpenFlow known ports.
• Config to allow other personalized protocol names on TCP Server.
• NNI and UNI attributes to Interface class.
• Interfaces to Switch json output.
• Statistics information for switch interfaces.
• Allow cross origin resource sharing (CORS).
• Now supports speed information from OF 1.3 switchs.
• Generate Events for reconnected switches.

Changed

• Dependency installation/update for devs: pip install -Ur requirements/dev.txt. To use cloned kytos repos as dependencies, reinstall those repos with pip install -e . in the end.
• Event name for a new switch. From kytos/core.switches.new to kytos/core.switch.new.

Removed

• Flow class from flow module. It was moved to kytos/of_core NApp.

Fixed

• Some bug fixes in tests.
• Several documentation fixes.
• Several bug fixes.
• Rest API prefix changed to "api/<username>/<nappname>".
• Now displays bandwidth values as bytes.
• Remove rest api endpoint when a NApp is disabled.
• Correctly update interface state and manage interfaces for switches.
• Some bug fixes.

[2017.2b1] - "chico" beta1 - 2017-09-19

Added

• @rest decorator for REST API methods. Examples:
  • @rest('flow/<flow_id>') (only GET HTTP method by default);
  • @rest('flows/', methods=['GET', 'POST']).
• Guide for developers in documentation.

Changed

• Whole documentation updated.
• API URLs renamed:
  • For NApps, the pattern is /api/<username>/<napp>/ + what is defined in @rest decorator;
  • Core endpoints starts with /api/kytos/core/. E.g. /kytos/config changed to /api/kytos/core/config.
• Improved load/unload of NApps.
• Requirements files updated and restructured.
• Yala substitutes Pylama as the main linter checker.

Deprecated

• Method register_rest_endpoint of Controller and APIServer in favor of @rest decorator.

Fixed

• Some bug fixes in tests.
• Several documentation fixes.
• Several bug fixes.

[2017.1] - "bethania" - 2017-07-06

Added

• NAppDirListener to manage (load/unload) NApps when they are enabled or disabled using kytos-utils.

Changed

• Improved connection management.
• Documentation updated and improved.
• Improved setup process.

Fixed

• Some bug fixes.

[2017.1b3] - "bethania" beta3 - 2017-06-16

Added

• Endpoint to display kytos configuration ('/kytos/config/').
• Setting to setup Kytos API Port on kytos.conf ('api_port' default to 8181).
• Documentation Blueprints tree.

Changed

• OpenFlow specific code moved to NApps: Kytos now acts as an all-purpose controller.
• Log manager refactored
• Improvements in the web interface style, layout and usability
• Setup process now requires pip
• Kytos documentation now shows a dropdown with each release documentation.

Fixed

• Web interface: - Fixed memory and CPU usage
• Now Kytos accepts to register different methods [POST, GET, etc] on the same endpoint.
• Now it's possible to start kytos in debug mode using kytosd -D.
• Removed documentation warnings.
• Several bug fixes

[2017.1b2] - "bethania" beta2 - 2017-05-05

Added

• Python bdist_wheel generation to make the install process via 'pip' easier and faster.
• Lockfile (PID-file) creation to prevent multiple instances running at the same time.
• Controller.restart method.
• kytos/tryfirst docker image was created and added to dockerhub.
• An improved console was added to execute python code when the controller is run in foreground.
• Continuous Integration with Code Quality Score and test coverage. (for the Python files in the project).
• Administration User Interface was moved to kytos, and it's accessible at port 8181 when kytos is running.
• Blueprints were moved to kytos/docs/blueprints folder.

Changed

• Updated requirements.txt.

• Improvements in TCP Server:

  • Now makes sure the switch is fully connected before accepting data.
  • Makes sure the switch is still connected before sending any data.
  • Uses sendall() to make sure data is being correctly sent.

• NApps module was refactored.
• Improved 'clean' option of setup.py.
• Improved tests and style checks for developers.
• Kytos setup process improved, reading necessary metadata before installing.
• Kytos core package was refactored.
• Documentation updates.
• NApp information is now obtained from kytos.json when loading a NApp.
• Improved log management.

Deprecated

• 'author' attribute, in the NApps context, was replaced by 'username' and will be removed in future releases.

Fixed

• Friendly messages are now displayed when some exceptions are raised.
• Kytos configuration is now loaded properly from kytos.conf
• Several adjustments and bug fixes.

[2017.1b1] - "bethania" beta1 - 2017-03-24

Added

• Data gathering from switches (i.e. interface speed)
• REST endpoints (i.e. REST API status)
• Sphinxs documentation

Changed

• Controller stop/start improvement
• Improved Controller's Rest API (using Flask)
• Connections, interfaces and switches management improvement
• Websocket to send logs to web interface
• Improved log management
• Corrections on setup and installation controller's code
• Improved NApps management - uninstall, disable and unload
• Improved controller's install and setup

[2016.1a1] - alpha1 - 2016-09-11

Added

• Bootstrapped initial architechture
• Kytos Events managing buffers and handlers
• NApp handling (load/unload/start/shutdown)
• TCPServer and TCPHandler
• Added basic config class