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This pull request increases the minimum version of Java required by OpenDC to 17.
This new version of Java introduces several new features compared to our old minimum
version (11), which we attempt to apply in this conversion.
## Implementation Notes :hammer_and_pick:
* Increase minimum Java version to Java 17
* Use RandomGenerator as randomness source
* Add common dispatcher interface
* Add compatibility with Kotlin coroutines
* Use InstantSource as time source
* Re-implement SimulationScheduler as Dispatcher
* Replace use of CoroutineContext by Dispatcher
## External Dependencies :four_leaf_clover:
* Java 17
## Breaking API Changes :warning:
* The use of `CoroutineContext` and `Clock` as parameters of classes has been replaced
by the `Dispatcher` interface.
* The use of `Clock` has been replaced by `InstantSource` which does not carry time
zone info.
* The use of `Random` and `SplittableRandom` as parameter type has been replaced
by `RandomGenerator`
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This change replaces the use of `CoroutineContext` for passing the
`SimulationDispatcher` across the different modules of OpenDC by the
lightweight `Dispatcher` interface of the OpenDC common module.
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This change updates the `SimulationScheduler` class to implement the
`Dispatcher` interface from the OpenDC Common module, so that OpenDC
modules only need to depend on the common module for dispatching future
task (possibly in simulation).
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This change updates the dependencies of the OpenDC web UI to latest
version where possible.
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This change updates the OpenDC web UI to not rely on Sass for
stylesheets. CSS in combination with PostCSS has become powerful enough
for our use-cases as indicated by the small differences between the CSS
and SCSS versions of our files.
By switching to CSS, we can make use of Turbopack to build the project,
which is a re-implementation of Webppack in Rust and is able to build
projects much faster.
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This change removes the ability to configure the basePath of the Next.js
application using the Quarkus extension. This functionality was brittle
due to relying on Next.js internals coping with out replacement
strategy.
We should wait for Next.js to implement proper support for
changing the base path at runtime before making this functionality
available again.
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This change updates the auth code in the OpenDC web UI to default to
the anonymous auth domain if no configuration is provided.
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This change updates the README to match the updated build process for
the web interface.
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This change updates the build script for the web UI to use consistent
names for the build tasks.
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This change updates the build process to use Node 18 for building the
web application.
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This change disables optimizing images for exporting, since we do not
want to depend on an external service.
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This change makes the root redirect to the projects page temporary, to
prevent browsers from caching this route indefinitely, while we might
add a home page in the future.
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This change removes the dependency on the Roboto font which was
downloaded for every page of OpenDC. Since we do not actually use this
font in any of our page, we can safely drop the dependency.
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This change updates the web interface to use Next 13 and React 18. This
release has a couple breaking changes (related to links) which we have fixed
accordingly.
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This change removes the explicit dependency on FontAwesome. PatternFly
also ships with the FontAwesome icons, so use these icons instead to
reduce the footprint of the application.
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This change adds the log4j-core dependency to various modules of OpenDC
using log4j2, to ensure logging keeps working. The upgrade to SLF4J 2.0 broke
the Log4j2 functionality, since the log4j-core artifact is not
automatically shipped with the SLF4J implementation.
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This change re-implements the OpenDC compute simulator framework using
the new flow2 framework for modelling multi-edge flow networks. The
re-implementation is written in Java and focusses on performance and
clean API surface.
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This change addresses an issue with the topology sidebar where hovering
a CPU or GPU would not present the correct information due to bug.
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This change fixes an issue with the OpenDC web runner where the default
job timeout was set to 10 ms instead of 10 minutes. For longer
simulations, this would cause the job to be terminated.
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This change resolves an issue in the web runner where the finished VMs
would always be reported as zero.
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This change updates the OpenDC web UI to show the monthly simulation
budget of the user in the user dropdown. This provides the user with a
progress bar of the used simulation minutes.
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This change updates the Quarkus-based web server with a new endpoint for
querying data about the active user including accounting data.
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This change updates the Quarkus-based web server to add support for
tracking and limiting the simulation minutes used by the user in order
to prevent misuse of shared resources.
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This change updates the Quarkus-based web server to limit the default
exception mapper to just WebApplicationException. Other exceptions
should be considered internal server errors and must not be shared with
users.
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This change updates the build configuration to use Spotless for code
formating of both Kotlin and Java.
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This change updates the repository to remove the use of wildcard imports
everywhere. Wildcard imports are not allowed by default by Ktlint as
well as Google's Java style guide.
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This change updates the build script in preparation for the OpenDC v3.0
release changing the version numbers to the appropriate values.
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This change renames the method `runBlockingSimulation` to
`runSimulation` to put more emphasis on the simulation part of the
method. The blocking part is not that important, but this behavior is
still described in the method documentation.
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This change updates the implementation of `SimulationDispatcher` to use
a (possibly user-provided) `SimulationScheduler` for managing the
execution of the simulation and future tasks.
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This change removes the Topology interface from the
`opendc-experiments-compute` module, which was meant for provisioning
the experimental topology. Howerver, with the stateless `HostSpec`
class, it is not needed to resolve the topology everytime.
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This change integrates the classes from the old
`opendc-compute-workload` module into the `opendc-experiments-compute`
module. This new module contains helper classes for setting up
experiments with the OpenDC compute service.
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This change updates the OpenDC web runner to use the new
`opendc-experiments-base` module for setting up the experimental
environment and simulate the workload.
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This change updates the interface of `ComputeService` to provide access
to the instances (servers) that have been registered with the compute
service. This allows metric collectors to query the metrics of the
servers that are currently running.
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This change updates the `ComputeServiceHelper` class to provide the
failure model via a parameter to the `run` method instead of constructor
parameter. This separates the construction of the topology from the
simulation of the workload.
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This change updates the virtual machine performance interference model
so that the interference domain can be constructed independently of the
interference profile. As a consequence, the construction of the topology
now does not depend anymore on the interference profile.
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This change moves the Random dependency outside the interference model,
to allow the interference model to be completely immutable and passable
between different simulations.
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This change updates the web interface to use the composable table API
offered by PatternFly 4. This has replaced the legacy table API which
will be removed in the next major version of PatternFly.
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This change fixes an issue where the deletion of portfolios would fail
due to no transaction context being active.
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This change fixes an issue with the web interface where the sidebar
would overflow due to the large number of rack slots that are displayed
in the sidebar.
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This change fixes an issue where switching between different topologies
would fail due to stale Redux state. We have updated the components to
take into account that ids may not exist in the Redux store.
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This change updates the OpenDC web interface to use the PatternFly
Charts package to render the results of a portfolio. Previously, we used
Recharts, but this package does not support SSR, whereas the PatternFly
Charts package matches our design framework.
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This change updates the design of the projects page to use a gallery
overview.
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This change reduces the height of the application header to 3.5rem to
increase the screen real-estate that we can use for the application
content.
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This change moves the project selector into the masthead since it
affects the whole application. This follows the PatternFly guidelines.
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This change addresses an issue with the context selector component where
the dropdown would fall behind a sticky tab bar in the main content.
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This change replaces the classnames dependency for the clsx dependency,
which uses less code and is in general faster than the classnames
dependency.
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This change fixes an issue with the web interface where all available
metrics were shown to the user, instead of the metrics belonging to the
portfolio.
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This change addresses an issue where a new topology did not correctly
clone an existing topology.
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This change fixes an issue with the OpenDC web interface where the user
cannot remove an existing topology from the topology table due to a
programming mistake.
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This change updates the dependencies of the OpenDC web interface were
possible. We remain on React 17 until PatternFly adds support for the
new React version.
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