v0.6.0

What's Changed

• 🚀 Autoscaling: Each agent autoscales independently on the concurrent in-flight load its broker handles.
• 🛡️ Broker rate limiting: Cap concurrent in-flight A2A requests per agent, shedding excess (HTTP 429 + Retry-After, gRPC RESOURCE_EXHAUSTED) to protect an external dependency like an LLM quota. Composes with autoscaling - scale-up is suppressed once total in-flight reaches the cap.
• 🧹 Graceful pod termination: Draining before termination, smooth and precise autoscaling down and pod rotation.
• 📈 Broker observability.

Installation

kubectl create namespace kynomesh-system

# Install kynomesh controller
kubectl apply -n kynomesh-system -f https://github.com/kynoproj/kynomesh/releases/download/v0.6.0/install.yaml

Pull Requests

• feat: get broker image to AgentDeploy pod by @whynowy in #1
• chore: expose builtin envs to the containers by @whynowy in #2
• chore: discard mergo by @whynowy in #3
• chore: AgentDeploy obj in env by @whynowy in #4
• chore: refactor to move constants by @whynowy in #5
• feat: broker to support tls by @whynowy in #6
• chore: more leader election config by @whynowy in #7
• chore: use both agentset and agentdeploy names in the labels by @whynowy in #8
• feat: broker proxy implementation by @whynowy in #9
• feat: mount socket volume by @whynowy in #10
• feat: add init container to create socket file by @whynowy in #11
• feat: switch to using UDS by @whynowy in #12
• feat: introduce pattern and entry by @whynowy in #13
• fix: incorrect container and brokerTemplate settings by @whynowy in #14
• feat: broker passthrough all the traffic by @whynowy in #15
• feat: introduce 2nd port for metrics and health check by @whynowy in #16
• docs: simple readme by @whynowy in #17
• fix: allows passthrough when agentcard is missing by @whynowy in #18
• chore: more test cases by @whynowy in #19
• chore: broker fqdn by @whynowy in #20
• feat: make it possible to run on the local by @whynowy in #21
• ci: image build by @whynowy in #22
• ci: nightly build by @whynowy in #23
• chore: update the ports and broker endpoints by @whynowy in #24
• chore: update local dev port to 8088 by @whynowy in #25
• chore: add AGENTSET_NAME and AGENTDEPLOY_NAME to the env by @whynowy in #26
• feat: write topoloty file to runtime by @whynowy in #27
• chore: do not create socket file in init container by @whynowy in #28
• docs: readme by @whynowy in #29
• docs: core conceps by @whynowy in #30
• feat: load serverinfo when broker starts by @whynowy in #31
• feat: add readiness and live probe to the agent container by @whynowy in #32
• feat: honor user provided readiness and liveness config parameters by @whynowy in #33
• ci: enable dependent bot by @whynowy in #34
• chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in #35
• chore(deps): bump codecov/codecov-action from 5 to 6 by @dependabot[bot] in #36
• chore(deps): bump imjasonh/setup-crane from 0.5 to 0.6 by @dependabot[bot] in #41
• chore(deps): bump actions/download-artifact from 4 to 8 by @dependabot[bot] in #39
• chore(deps): bump actions/setup-node from 4 to 6 by @dependabot[bot] in #38
• chore(deps): bump golang.org/x/net from 0.49.0 to 0.55.0 by @dependabot[bot] in #37
• chore(deps): bump go.uber.org/zap from 1.27.1 to 1.28.0 by @dependabot[bot] in #42
• chore(deps): bump google.golang.org/grpc from 1.80.0 to 1.81.1 by @dependabot[bot] in #43
• chore(deps): bump golang.org/x/tools from 0.44.0 to 0.45.0 by @dependabot[bot] in #44
• chore(deps): bump sigs.k8s.io/controller-tools from 0.20.1 to 0.21.0 by @dependabot[bot] in #40
• ci: fix node and cache warnings by @whynowy in #45
• refactor: mv probe pkg and more logs by @whynowy in #46
• feat: honor imagePullPolicy configed in the controler env by @whynowy in #47
• feat: enable optional pprof env by @whynowy in #48
• chore(deps): bump actions/upload-artifact from 5 to 7 by @dependabot[bot] in #51
• chore(deps): bump docker/setup-buildx-action from 2 to 4 by @dependabot[bot] in #52
• chore(deps): bump google.golang.org/grpc/cmd/protoc-gen-go-grpc from 1.6.1 to 1.6.2 by @dependabot[bot] in #53
• chore(deps): bump github.com/go-swagger/go-swagger from 0.34.0 to 0.34.1 by @dependabot[bot] in #54
• chore(deps): bump github.com/grpc-ecosystem/grpc-gateway/v2 from 2.28.0 to 2.29.0 by @dependabot[bot] in #55
• feat: add publicBaseURL to agent config by @whynowy in #56
• fix: topology file not readable to the broker by @whynowy in #57
• fix: permission issue for release by @whynowy in #58
• fix: release script by @whynowy in #59
• chore: changelog script by @whynowy in #60
• chore: only checksum kynomesh binaries by @whynowy in #61
• feat: create anothe normal service for internal access by @whynowy in #62
• docs: installation doc by @whynowy in #63
• feat: introduce entry service for agentset by @whynowy in #64
• docs: updated CHANGELOG.md by @github-actions[bot] in #65
• fix: error in Makefile by @whynowy in #66
• fix: headless service exposes introspect port by @whynowy in #67
• fix: kubectl wait errors out without waiting due to race by @whynowy in #68
• docs: quick-start by @whynowy in #69
• chore(deps): bump codecov/codecov-action from 6 to 7 by @dependabot[bot] in #70
• chore(deps): bump golang.org/x/net from 0.55.0 to 0.56.0 by @dependabot[bot] in #71
• chore(deps): bump golang.org/x/tools from 0.45.0 to 0.46.0 by @dependabot[bot] in #72
• docs: build mkdocs by @whynowy in #73
• ci: set up gh page workflow by @whynowy in #74
• docs: publish multi-version docs by @whynowy in #75
• chore: action rename by @whynowy in #76
• chore: workflow naming by @whynowy in #77
• docs: updated CHANGELOG.md by @github-actions[bot] in #78
• chore: use dev instead of latest for the docs by @whynowy in #79
• fix(docs): dns for each agentdeploy by @whynowy in #80
• feat(daemon): add gRPC + REST proto for per-AgentSet metrics daemon by @whynowy in #81
• chore(deps): bump actions/checkout from 6 to 7 by @dependabot[bot] in #83
• feat(daemon): implement per-AgentSet metrics daemon by @whynowy in #82
• feat: daemon service clients by @whynowy in #84
• feat: reconcile daemon deployment and service by @whynowy in #85
• refactor: split to multiple files for reconcilers by @whynowy in #86
• chore: remove finalizers by @whynowy in #87
• chore: agentset and agentdeploy name validation by @whynowy in #88
• feat: metrics for broker by @whynowy in #92
• feat: expose metric for stream messages by @whynowy in #93
• fix: SSE events flush immediately by @whynowy in #94
• chore(deps): bump imjasonh/setup-crane from 0.6 to 0.7 by @dependabot[bot] in #95
• chore(deps): bump actions/cache from 5 to 6 by @dependabot[bot] in #96
• chore(deps): bump github.com/go-swagger/go-swagger from 0.34.1 to 0.35.0 by @dependabot[bot] in #97
• chore(deps): bump github.com/prometheus/common from 0.67.5 to 0.69.0 by @dependabot[bot] in #98
• chore(deps): bump golang.org/x/tools from 0.46.0 to 0.47.0 by @dependabot[bot] in #99
• feat: init commit for autoscaling by @whynowy in #118
• feat: autoscaling sampler and scaler by @whynowy in #119
• fix: populate lastScaleAt and use hash for sample history by @whynowy in #120
• feat: staleness guard for sampled data by @whynowy in #121
• feat: flush tracked metrics on termination by @whynowy in #122
• chore: correct cm labels and some log labels for autoscaling by @whynowy in #123
• feat: metrics for autoscaling by @whynowy in #124
• chore: close daemon clients which have no references by @whynowy in #125
• chore(deps): bump google.golang.org/grpc from 1.81.1 to 1.82.0 by @dependabot[bot] in #127
• feat: time-based confidence and adaptive sampling window by @whynowy in #128
• fix: dedup same-timestamp samples in sanitize by @whynowy in #129
• chore: Remove retired goreport card by @whynowy in #130
• chore(deps): bump github.com/prometheus/common from 0.69.0 to 0.70.0 by @dependabot[bot] in #131
• chore(deps): bump golang.org/x/tools from 0.47.0 to 0.48.0 by @dependabot[bot] in #132
• chore: refactor to make Decide pure math function by @whynowy in #134
• chore: update sampling cadence to 60s by @whynowy in #135
• test: start e2e test by @whynowy in #136
• feat: broker container probes by @whynowy in #141
• chore(deps): bump google.golang.org/grpc from 1.82.0 to 1.82.1 by @dependabot[bot] in #140
• chore(deps): bump actions/setup-node from 6 to 7 by @dependabot[bot] in #138
• chore(deps): bump actions/setup-go from 6 to 7 by @dependabot[bot] in #139
• test: test cases for sampler and autoscaler start loop by @whynowy in #142
• test: e2e test for scaling by @whynowy in #143
• fix: scale up/down follows same rules by @whynowy in #144
• chore(deps): bump github.com/prometheus/common from 0.70.0 to 0.70.1 by @dependabot[bot] in #149
• chore(deps): bump actions/setup-python from 6 to 7 by @dependabot[bot] in #148
• chore(deps): bump github.com/go-swagger/go-swagger from 0.35.0 to 0.35.3 by @dependabot[bot] in #151
• chore(deps): bump github.com/prometheus/client_golang from 1.23.2 to 1.24.1 by @dependabot[bot] in #150
• chore(deps): bump github.com/a2aproject/a2a-go/v2 from 2.3.1 to 2.4.0 by @dependabot[bot] in #152
• chore: a2acli defaults to output text instead of json by @whynowy in #153
• feat: draining before termination by @whynowy in #158
• chore(deps): bump github.com/go-swagger/go-swagger from 0.35.3 to 0.36.1 by @dependabot[bot] in #154
• chore(deps): bump google.golang.org/grpc from 1.82.1 to 1.83.0 by @dependabot[bot] in #156
• chore(deps): bump github.com/grpc-ecosystem/grpc-gateway/v2 from 2.29.0 to 2.30.0 by @dependabot[bot] in #155
• chore: retry lychee check transient failures by @whynowy in #160
• feat: pod termination grace period bugget by @whynowy in #161
• fix: flaky e2e test by @whynowy in #162
• feat: rate limit for brokers - part 1 by @whynowy in #163
• feat: broker rate limit part 2 by @whynowy in #164
• feat: incorporate rate limit with autoscaling by @whynowy in #166
• docs: rate limiting by @whynowy in #167
• fix(controller): pod replicas respect min/max by @whynowy in #169
• test(e2e): rate limiting by @whynowy in #168

Full Changelog: https://github.com/kynoproj/kynomesh/commits/v0.6.0