An SRE’s dream: Keep Istio’s data-plane up-to-date without toil.
The name comes from the Greek phrase “Όρτσα τα πανιά!” meaning roughly “Full Sail Ahead”
When updating Istio, one particular task is pretty much impossible to do with a GitOps-style workflow: Restarting all the pods running the previous versions of Istio’s sidecar proxy. This is an onerous task even when doing everything via scripts or using something like Ansible. It can take hours - or even longer - and it’s easy to make mistakes. An that’s just for a single medium-sized cluster. If you have many clusters, keeping Istio’s data-plane up-to-date can be a full-time job!
This project is a Kubernetes Operator that automates away the whole task, as much as possible.
In the spirit of being as simple as possible, there are currently no CRDs and no dependencies other than running in a cluster that uses Istio. Note that we’ve only tested this when using Istio’s default envoy-based proxy.
This project was inspired by my experience with the toil of keeping the istio data-plane up-to-date and then discovering the solution Google had come up with, described in this YouTube video: https://youtu.be/R86ZsYH7Ka4
This project is packaged for deployment using Helm or OLM. See the “Packages” for the various docker images available. The helm repo is here:
https://hercynium.github.io/istio-fortsa/
Installation should be like any other app packeged for Helm or OLM depending on the method you want to use.
When a release is published, the project uses a Github Action to build several artifacts, including Docker images of the Operator application, OLM bundle, OLM catalog, and the Helm chart. The helm chart tarball is also attached to the release alongside the source code archives.
Because this project was created using the operator-sdk, which itself is a wrapper around kubebuilder, please look at the documentation for those frameworks for more info about build, test, distribution, and deployment details.
There’s lots to do! If you want to help, see the Contributing section, below.
This is a young project and we can use all the help we can get! Feature requests, bug reports, patches, documentation, testing, CI/CD, helm charts, you name it!
NOTE: Run make help for more information on all potential make targets
More information can be found via the Kubebuilder Documentation
Copyright 2024 Stephen R. Scaffidi
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.