All notable changes to this project are documented in this file.
Release date: 2021-01-28
This release comes with support for Kubernetes anti-affinity rules.
- Support for adding
-primarysuffix to Anti-Affinity values #788
- Add missing alerts section to Canary CRD schema #794
Release date: 2021-01-19
This release extends the support for Istio's HTTPMatchRequest and
comes with a regression bug fix to secrets and configmaps tracking.
- Update HTTPMatchRequest to match Istio's definitions #777
- e2e: Update Istio to v1.8.2 and Contour to v1.11.0 #778
- Add missing TrackedConfig field to Canary status CRD #781
Release date: 2021-01-05
Breaking change: the minimum supported version of Kubernetes is v1.16.0.
This release comes with support for A/B testing using Gloo Edge HTTP headers based routing.
- A/B testing support for Gloo Edge ingress controller #765
- Upgrade the Kubernetes packages to
v1.20.1and Flagger's CRDs toapiextensions.k8s.io/v1#772
Release date: 2020-12-22
This is the first release of Flagger under fluxcd organization (CNCF sandbox). Starting with this version, Flagger can be installed on multi-arch Kubernetes clusters (Linux AMD64/ARM64/ARM). The multi-arch image is available on GitHub Container Registry at ghcr.io/fluxcd/flagger.
- Publish multi-arch image to GitHub Container Registry #763
- Migrate CI to GitHub Actions #754
- Add e2e tests for label prefix inclusion #762
- Added PodDisruptionBudget to the Flagger Helm chart #749
Release date: 2020-12-09
Fix Istio virtual service delegation
- Fix for VirtualService delegation when analysis is enabled #745
Prevent primary ConfigMaps and Secrets from being pruned by Flux
- Apply label prefix rules for ConfigMaps and Secrets #743
Add support for Traefik ingress controller
- Add Traefik support for progressive traffic shifting with
TraefikService#736 - Add support for HPA v2beta2 behaviors #740
Add support for custom weights when configuring traffic shifting
- Support AWS App Mesh backends ARN #715
- Add support for Istio VirtualService delegation #715
- Copy labels from canary to primary workloads based on prefix rules #709
Add support for New Relic metrics
- Add New Relic as a metrics provider #691
- Do not promote when not ready on skip analysis #695
Add support for Skipper ingress controller
- Skipper Ingress Controller support #670
- Support per-config configTracker disable via ConfigMap/Secret annotation #671
- Add priorityClassName and securityContext to Helm charts #652 #668
- Update Kubernetes packages to v1.18.8 #672
- Update Istio, Linkerd and Contour e2e tests #661
- Fix O(log n) bug over network in GetTargetConfigs #663
- Fix(grafana): metrics change since Kubernetes 1.16 #663
Add support for App Mesh Gateway GA
- Update App Mesh docs to v1beta2 API #649
- Add threadiness to Flagger helm chart #643
- Add Istio virtual service to loadtester helm chart #643
This is the GA release for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
Two new resources were added to the API: MetricTemplate and AlertProvider.
The analysis can reference metric templates
to query Prometheus, Datadog and AWS CloudWatch.
Alerting can be configured on a per
canary basis for Slack, MS Teams, Discord and Rocket.
- Implement progressive promotion #593
- istio: Add source labels to analysis matching rules #594
- istio: Add allow origins field to CORS spec #604
- istio: Change builtin metrics to work with Istio telemetry v2 #623
- appmesh: Implement App Mesh v1beta2 timeout #611
- metrics: Check metrics server availability during canary initialization #592
This is a release candidate for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
- Add support for AWS AppMesh v1beta2 API #584
- Add support for Contour v1.4 ingress class #588
- Add user-specified labels/annotations to the generated Services #538
- Support compatible Prometheus service #557
- Update e2e tests and packages to Kubernetes v1.18 #549 #576
- pkg/controller: retry canary initialization on conflict #586
This is a release candidate for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
Breaking change: the minimum supported version of Kubernetes is v1.14.0.
- Implement NGINX Ingress header regex matching #546
- pkg/router: update ingress API to networking.k8s.io/v1beta1 #534
- loadtester: add return cmd output option #535
- refactoring: finalizer error handling and unit testing #531 #530
- chart: add finalizers to RBAC rules for OpenShift #537
- chart: allow security context to be disabled on OpenShift #543
- chart: add annotations for service account #521
- docs: Add Prometheus Operator tutorial #524
- pkg/controller: avoid status conflicts on initialization #544
- pkg/canary: fix status retry #541
- loadtester: fix timeout errors #539
- pkg/canary/daemonset: fix readiness check #529
- logs: reduce log verbosity and fix typos #540 #526
This is a release candidate for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
- Add opt-in finalizers to revert Flagger's mutations on deletion of a canary #495
- e2e: update end-to-end tests to Contour 1.3.0 and Gloo 1.3.14 #519
- build: update Kubernetes packages to 1.17.4 #516
- Preserve node ports on service reconciliation #514
This is a release candidate for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
- Make mirror percentage configurable when using Istio traffic shadowing #492
- Add support for running Concord tests with loadtester webhooks #507
- docs: add Istio telemetry v2 upgrade guide #486, update A/B testing tutorial for Istio 1.5 #502, add how to retry a failed release to FAQ #494
- e2e: update end-to-end tests to Istio 1.5 #447 and NGINX Ingress 0.30 #489 #511
- refactoring: error handling #480, scheduler #484 and unit tests #475
- chart: add the log level configuration to Flagger helm chart #506
- Fix nil pointer for the global notifiers #504
This is a release candidate for Flagger v1.0.0.
The upgrade procedure from 0.x to 1.0 can be found here.
Two new resources were added to the API: MetricTemplate and AlertProvider.
The analysis can reference metric templates
to query Prometheus, Datadog and AWS CloudWatch.
Alerting can be configured on a per
canary basis for Slack, MS Teams, Discord and Rocket.
- Implement metric templates for Prometheus #419, Datadog #460 and CloudWatch #464
- Implement metric range validation #424
- Add support for targeting DaemonSets #455
- Implement canary alerts and alert providers (Slack, MS Teams, Discord and Rocket) #429
- Add support for Istio multi-cluster #447 #450
- Extend Istio traffic policy #441, add support for header operations #442 and set ingress destination port when multiple ports are discovered #436
- Add support for rollback gating #449
- Allow disabling ConfigMaps and Secrets tracking #425
Adds support for service name configuration and rollback webhook
Adds event dispatching through webhooks
- Update Contour to v1.1 and add Linkerd header #411
- Update Istio e2e to v1.4.3 #407
- Update Kubernetes packages to 1.17 #406
Adds support for Contour ingress controller
- Add support for Contour ingress controller #397
- Add support for Envoy managed by Crossover via SMI #386
- Extend canary target ref to Kubernetes Service kind #372
- Add Prometheus operator PodMonitor template to Helm chart #399
- Update e2e tests to Kubernetes v1.16 #390
Adds support for taking over a running deployment without disruption
- Add initialization phase to Kubernetes router #384
- Add canary controller interface and Kubernetes deployment kind implementation #378
- Skip primary check on skip analysis #380
Adds wrk to load tester tools and the App Mesh gateway chart to Flagger Helm repository
Adds support for exposing canaries outside the cluster using App Mesh Gateway annotations
- Expose canaries on public domains with App Mesh Gateway #358
- Use the specified replicas when scaling up the canary #363
Fixes promql execution and updates the load testing tools
Adds support for A/B Testing and retry policies when using App Mesh
- Implement App Mesh A/B testing based on HTTP headers match conditions #340
- Implement App Mesh HTTP retry policy #338
- Implement metrics server override #342
- Add the app/name label to services and primary deployment #333
- Allow setting Slack and Teams URLs with env vars #334
- Refactor Gloo integration #344
- Generate unique names for App Mesh virtual routers and routes #336
Adds support for canary and blue/green traffic mirroring
Adds support for App Mesh conformance tests and latency metric checks
- Add support for acceptance testing when using App Mesh #322
- Add Kustomize installer for App Mesh #310
- Update Linkerd to v2.5.0 and Prometheus to v2.12.0 #323
- Fix slack/teams notification fields mapping #318
Adds support for confirm-promotion webhooks and blue/green deployments when using a service mesh
- Canary promotion improvements to avoid dropping in-flight requests #310
- Update end-to-end tests to Kubernetes v1.15.3 and Istio 1.3.0 #306
- Skip primary check for App Mesh #315
Adds support for NGINX custom annotations and Helm v3 acceptance testing
- Add annotations prefix for NGINX ingresses #293
- Add wide columns in CRD #289
- loadtester: implement Helm v3 test command #296
- loadtester: add gRPC health check to load tester image #295
- loadtester: fix tests error logging #286
Adds support for tillerless helm tests and protobuf health checking
- loadtester: add support for tillerless helm #280
- loadtester: add support for protobuf health checking #280
- Set HTTP listeners for AppMesh virtual routers #272
Fixes multi-port support for Istio
- Fix port discovery for multiple port services #267
- Update e2e testing to Istio v1.2.3, Gloo v0.18.8 and NGINX ingress chart v1.12.1 #268
Fixes Blue/Green style deployments for Kubernetes and Linkerd providers
- Fix Blue/Green metrics provider and add e2e tests #261
Adds support for manual gating and pausing/resuming an ongoing analysis
- Implement confirm rollout gate, hook and API #251
- Refactor canary change detection and status #240
- Implement finalising state #257
- Add gRPC load testing tool #248
- Due to the status sub-resource changes in #240,
when upgrading Flagger the canaries status phase will be reset to
Initialized - Upgrading Flagger with Helm will fail due to Helm poor support of CRDs, see workaround
Adds support for Linkerd (SMI Traffic Split API), MS Teams notifications and HA mode with leader election
Adds support for running Blue/Green deployments without a service mesh or ingress controller
- Allow blue/green deployments without a service mesh provider #211
- Add the service mesh provider to the canary spec #217
- Allow multi-port services and implement port discovery #207
- Add FAQ page to docs website
- Switch to go modules in CI #218
- Update e2e testing to Kubernetes Kind 0.3.0 and Istio 1.2.0
- Update the primary HPA on canary promotion #216
Adds support for customising the Istio traffic policy in the canary service spec
- Generate Istio destination rules and allow traffic policy customisation #200
- Update Kubernetes packages to 1.14 and use go modules instead of dep #202
Adds support for running acceptance/integration tests with Helm test or Bash Bats using pre-rollout hooks
- Implement Helm and Bash pre-rollout hooks #196
- Fix promoting canary when max weight is not a multiple of step #190
- Add ability to set Prometheus url with custom path without trailing '/' #197
Adds support for Service Mesh Interface and Gloo ingress controller
- Add support for SMI (Istio weighted traffic) #180
- Add support for Gloo ingress controller (weighted traffic) #179
Fixes for Jenkins X deployments (prevent the jx GC from removing the primary instance)
- Do not copy labels from canary to primary deployment #178
- Add NGINX ingress controller e2e and unit tests #176
Fixes for custom metrics checks and NGINX Prometheus queries
- Fix promql queries for custom checks and NGINX #174
Adds support for NGINX ingress controller
- Add support for nginx ingress controller (weighted traffic and A/B testing) #170
- Add Prometheus add-on to Flagger Helm chart for App Mesh and NGINX 79b3370
- Fix duplicate hosts Istio error when using wildcards #162
Adds support for SuperGloo
- Supergloo support for canary deployment (weighted traffic) #151
Move Flagger and the load tester container images to Docker Hub
- Add Bash Automated Testing System support to Flagger tester for running acceptance tests as pre-rollout hooks
Adds pre/post rollout webhooks
- Add
pre-rolloutandpost-rolloutwebhook types #147
- Set default
meshIstio gateway only if no gateway is specified #141
Adds support for App Mesh
- Reconcile Kubernetes ClusterIP services #122
Allows A/B testing scenarios where instead of weighted routing, the traffic is split between the primary and canary based on HTTP headers or cookies.
- A/B testing - canary with session affinity #88
- Update the analysis interval when the custom resource changes #91
Adds support for CORS policy and HTTP request headers manipulation
- Refactor the routing management #72 #80
- Fine-grained RBAC #73
- Add option to limit Flagger to a single namespace #78
Adds support for custom metric checks, HTTP timeouts and HTTP retries
- Allow custom promql queries in the canary analysis spec #60
- Add HTTP timeout and retries to canary service spec #62
Allows for HTTPMatchRequests and HTTPRewrite to be customized in the service spec of the canary custom resource.
- Add HTTP match conditions and URI rewrite to the canary service spec #55
- Update virtual service when the canary service spec changes #54 #51
- Run e2e testing on Kubernetes Kind for canary promotion #53
Allows skipping the analysis phase to ship changes directly to production
- Add option to skip the canary analysis #46
- Reject deployment if the pod label selector doesn't match
app: <DEPLOYMENT_NAME>#43
Track changes in ConfigMaps and Secrets #37
- Promote configmaps and secrets changes from canary to primary
- Detect changes in configmaps and/or secrets and (re)start canary analysis
- Add configs checksum to Canary CRD status
- Create primary configmaps and secrets at bootstrap
- Scan canary volumes and containers for configmaps and secrets
- Copy deployment labels from canary to primary at bootstrap and promotion
Load testing webhook #35
- Add the load tester chart to Flagger Helm repository
- Implement a load test runner based on rakyll/hey
- Log warning when no values are found for Istio metric due to lack of traffic
- Run wekbooks before the metrics checks to avoid failures when using a load tester
Restart canary analysis if revision changes #31
- Drop support for Kubernetes 1.10
- Detect changes during canary analysis and reset advancement
- Add status and additional printer columns to CRD
- Add canary name and namespace to controller structured logs
- Allow canary name to be different to the target name
- Check if multiple canaries have the same target and log error
- Use deep copy when updating Kubernetes objects
- Skip readiness checks if canary analysis has finished
Configurable canary analysis duration #20
- Helm chart: flag
controlLoopIntervalhas been removed
- CRD: canaries.flagger.app v1alpha3
- Schedule canary analysis independently based on
canaryAnalysis.interval - Add analysis interval to Canary CRD (defaults to one minute)
- Make autoscaler (HPA) reference optional
Webhooks #18
- CRD: canaries.flagger.app v1alpha2
- Implement canary external checks based on webhooks HTTP POST calls
- Add webhooks to Canary CRD
- Move docs to gitbook docs.flagger.app
Improve Slack notifications #14
- Add canary analysis metadata to init and start Slack messages
- Add rollback reason to failed canary Slack messages
Canary progress deadline #10
- Rollback canary based on the deployment progress deadline check
- Add progress deadline to Canary CRD (defaults to 10 minutes)
First stable release
- CRD: canaries.flagger.app v1alpha1
- Notifications: post canary events to Slack
- Instrumentation: expose Prometheus metrics for canary status and traffic weight percentage
- Autoscaling: add HPA reference to CRD and create primary HPA at bootstrap
- Bootstrap: create primary deployment, ClusterIP services and Istio virtual service based on CRD spec
Initial semver release
- Implement canary rollback based on failed checks threshold
- Scale up the deployment when canary revision changes
- Add OpenAPI v3 schema validation to Canary CRD
- Use CRD status for canary state persistence
- Add Helm charts for Flagger and Grafana
- Add canary analysis Grafana dashboard