October 17, 2018
made a new release of Fission.io – the popular open source, Kubernetes-native
Serverless framework – with new features enabling developers and IT
Operations to improve the quality and reliability of serverless
Fission is the industry’s first serverless solution to offer built-in
Live-reload and Record-replay capabilities to simplify testing and
accelerate feedback loops. Other new features include Automated Canary
Deployments to reduce the risk of failed releases, Prometheus
integration for automated monitoring and alerts, and fine-grained cost
and performance optimization capabilities. With this latest release,
Fission offers the most complete set of features to allow Dev and Ops
teams to safely adopt Serverless and benefit from the speed, cost
savings and scalability of this cloud native development pattern on any
environment – either in the public cloud or on-premises.=
Fission was created to provide a simpler, easier way for developers to
accelerate time to value with Kubernetes. Our goal is to help developers
produce quality serverless code, and provide Ops teams with the utmost
confidence to run serverless applications in production,” said Soam
Vasani, Creator of Fission at Platform9. “Serverless allows developers
to move faster and be more productive. The latest release of Fission
focuses on accelerating feedback loops and lowering deployment risk, to
ensure that teams can not only move fast, but also safely, and at
The latest feature set of Fission includes:
Live-reload: Test as you type
With Live-reload, Fission automatically deploys the code as it is
written into a live Kubernetes test cluster, and allows developers to
toggle between their development environment and the runtime of the
function, to rapidly iterate through their coding and testing cycles.
This allows bugs to be found and fixed earlier in the application
development lifecycle, when it is cheaper to do so – before they are
discovered in the higher environments or cause any service disruption in
Production. Further, it simplifies and increases the fidelity of
integration tests, by running them earlier in the process using a live
environment that’s consistent with the configuration and related
services (i.e. database, API calls, etc.) that are used in Production.
Record-replay: Simplify testing and debugging
Fission is the first serverless solution that offers out-of-the-box
Record-replay functionality for easy testing and troubleshooting.
Record-replay automatically saves events that trigger serverless
functions and allows for the replaying of these events on demand with
detailed information on how the application is used, the inputs and the
outputs of the functions. Fission users can configure which functions
and workflows to record and for how long to retain the recorded events.
Record-replay is used by developers to reproduce complex failures during
testing or debugging, simplify regression testing, and troubleshoot
issues (i.e. inspecting an execution of a function based on past input).
In addition, Operations teams often enable recording on a subset of live
production traffic to help engineers reproduce issues or verify
Automated Canary Deployments: Reduce the risk of failed releases
Canary deployments are a proven deployment strategy to minimize the risk
of failed application releases and avoid service interruptions to end
users. In this strategy, the new version of the application is first
deployed only to a small percentage of the live traffic, and then gets
incrementally rolled out to Production once it has been established that
the version is stable. In the case of Production failures, the
application can be rolled back to the previous, stable version.
Fission is the first open source serverless framework to provide fully
automated Canary Deployments that are easy to configure. This saves
DevOps teams and Site Reliability Engineers the need to manage Canaries
manually or invest in cumbersome scripting and testing to execute this
advanced deployment strategy – making it intuitive, simple to use, and
error-free. Ultimately this minimizes downtime risk for applications.
With Automated Canary Deployments, Fission automatically increments
traffic proportions to the newer version of the function as long as it
succeeds, and rolls back to the old version if the new version fails.
Users can configure the percentage of traffic that will receive the new
version of the function, the error rate that will constitute as failure,
and the release rate at which to roll out the new version.
Prometheus Integration: Easy metrics collection and alerts
Out of the box integration with Prometheus enables automatic aggregation
of function metrics, including the number of functions called, function
execution time, success, failures, and more. Users can also define
custom alerts for key events, such as for when a function fails or takes
too long to execute. Prometheus metrics can also feed monitoring
dashboards to visualize application metrics.
Cost Optimizations in Fission
Since Fission is open source and works on any Kubernetes cluster, it
enables enterprises to easily run a Lambda-like Serverless service on
any infrastructure – using either the cheaper instances on public
clouds, or leveraging their own data centers. To allow IT to maximize
infrastructure utilization on both public cloud and on-premises
resources, Fission offers fine-grained cost and performance optimization
functions can be configured with specific CPU and Memory resource usage
limits, minimum/maximum number of instances and auto-scaling parameters.
These parameters allow for functions to be tuned with an execution
strategy that best fits the specific business use case. For example,
functions that have severe cost constraints can be deployed into
containers on-demand, minimizing costs at the expense of performance.
Conversely, functions that need performance above all other requirements
can be configured to have instances always running, ensuring low latency
but driving up costs. Functions can also take advantage of Fission’s
pre-warmed container pools, which aggregate the cost of pooling over a
large number of functions, while providing the performance benefits for
all of them.
“Our global photo platform helps hundreds of millions of devoted users
preserve their memories by combining all of their favorite photos on
thousands of customized products. We are always looking for ways to
improve the way we manage the scale and quality of our applications.
These new Fission features will help our developers deliver new customer
experiences built on serverless applications without the dependency of
managing the complexity of scale”, said Kenneth Lam, Director of
Technology at Snapfish. “Fission allows our company to benefit from the
speed, cost savings and scalability of a cloud-native development
pattern on any environment we choose, whether it be the public cloud or