Files
actions-runner-controller/go.mod
T
Nikola JokicandCopilot App 7833438dd7 Handle scale set messages with parallel workers in the listener
The scaleset listener no longer dissects the message it polls. It owns
session management, polling and acking, and hands the whole message to a
single Scale call, so acquiring jobs and recording metrics move to the
only component that still reads them.

That handover is what makes the work parallelisable. The listener used to
replay a message one API call at a time, in a fixed order: every job
started patch, then every job completed, then the scale patch. The job
events touch distinct EphemeralRunners and carry no ordering between
them, so they now run across a bounded worker pool, with the worker that
patches the EphemeralRunnerSet running alongside them.

The one ordering that does matter is kept. deleteIdleEphemeralRunners
skips a runner only once it carries a job request ID, so a patch that
lowers the replica count could offer up a runner that just picked up a
job if it were published while job started patches were still in flight.
The scaling worker therefore waits for the event workers on a scale down,
and only then. A patch that scales up or holds cannot delete anything.

Kubernetes has no bulk write: get, create, update, patch and delete are
single-resource verbs, and deletecollection is the only collection-scoped
mutating verb there is, so N events cannot be collapsed into fewer
requests. Server side apply is a PATCH on one object URI and does not
change that. Issuing the N patches concurrently over the one HTTP/2
connection is the available win; the alternative is writing fewer
objects, which trades N cheap independent writes for one contended,
watch-amplifying, size-bounded write.

The pool size is configurable through listenerConfig.scaler.workers,
alongside the existing qps and burst, and defaults to 10: two calls per
event keeps a full pool well inside the default QPS budget.

Statistics are now cached by the scaler. The listener stopped tracking
them, and a long poll that times out carries no message at all, so
without the cache an idle scale set would stop converging.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-18 15:05:54 +02:00

213 lines
11 KiB
AMPL

module github.com/actions/actions-runner-controller
go 1.26.3
require (
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.22.0
github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.14.0
github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/azsecrets v1.5.0
github.com/actions/scaleset v0.4.1-0.20260916214619-e6daac702355
github.com/bradleyfalzon/ghinstallation/v2 v2.19.0
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
github.com/evanphx/json-patch v5.9.11+incompatible
github.com/go-logr/logr v1.4.3
github.com/google/go-cmp v0.7.0
github.com/google/go-github/v52 v52.0.0
github.com/google/uuid v1.6.0
github.com/gorilla/mux v1.8.1
github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79
github.com/gruntwork-io/terratest v1.0.0
github.com/hashicorp/go-retryablehttp v0.7.8
github.com/kelseyhightower/envconfig v1.4.0
github.com/onsi/ginkgo v1.16.5
github.com/onsi/ginkgo/v2 v2.31.0
github.com/onsi/gomega v1.42.0
github.com/prometheus/client_golang v1.23.2
github.com/prometheus/client_model v0.6.2
github.com/stretchr/testify v1.11.1
github.com/teambition/rrule-go v1.8.2
go.uber.org/multierr v1.11.0
go.uber.org/zap v1.28.0
golang.org/x/net v0.55.0
golang.org/x/oauth2 v0.36.0
golang.org/x/sync v0.21.0
gomodules.xyz/jsonpatch/v2 v2.5.0
gopkg.in/yaml.v2 v2.4.0
k8s.io/api v0.36.2
k8s.io/apimachinery v0.36.2
k8s.io/client-go v0.36.2
k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2
sigs.k8s.io/controller-runtime v0.24.1
sigs.k8s.io/yaml v1.6.0
)
require (
filippo.io/edwards25519 v1.2.0 // indirect
github.com/Azure/azure-sdk-for-go/sdk/internal v1.12.0 // indirect
github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/internal v1.2.0 // indirect
github.com/AzureAD/microsoft-authentication-library-for-go v1.7.2 // indirect
github.com/BurntSushi/toml v1.6.0 // indirect
github.com/Masterminds/semver/v3 v3.4.0 // indirect
github.com/ProtonMail/go-crypto v1.4.0 // indirect
github.com/aws/aws-sdk-go-v2 v1.41.6 // indirect
github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.9 // indirect
github.com/aws/aws-sdk-go-v2/config v1.32.16 // indirect
github.com/aws/aws-sdk-go-v2/credentials v1.19.15 // indirect
github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.22 // indirect
github.com/aws/aws-sdk-go-v2/feature/s3/transfermanager v0.1.17 // indirect
github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.22 // indirect
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.22 // indirect
github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.23 // indirect
github.com/aws/aws-sdk-go-v2/service/acm v1.38.2 // indirect
github.com/aws/aws-sdk-go-v2/service/autoscaling v1.66.1 // indirect
github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs v1.69.1 // indirect
github.com/aws/aws-sdk-go-v2/service/dynamodb v1.57.2 // indirect
github.com/aws/aws-sdk-go-v2/service/ec2 v1.297.1 // indirect
github.com/aws/aws-sdk-go-v2/service/ecr v1.57.1 // indirect
github.com/aws/aws-sdk-go-v2/service/ecs v1.78.1 // indirect
github.com/aws/aws-sdk-go-v2/service/iam v1.53.8 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.8 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.14 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/endpoint-discovery v1.11.22 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.22 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.22 // indirect
github.com/aws/aws-sdk-go-v2/service/kms v1.50.5 // indirect
github.com/aws/aws-sdk-go-v2/service/lambda v1.89.1 // indirect
github.com/aws/aws-sdk-go-v2/service/rds v1.118.1 // indirect
github.com/aws/aws-sdk-go-v2/service/route53 v1.62.6 // indirect
github.com/aws/aws-sdk-go-v2/service/s3 v1.99.1 // indirect
github.com/aws/aws-sdk-go-v2/service/secretsmanager v1.41.6 // indirect
github.com/aws/aws-sdk-go-v2/service/signin v1.0.10 // indirect
github.com/aws/aws-sdk-go-v2/service/sns v1.39.16 // indirect
github.com/aws/aws-sdk-go-v2/service/sqs v1.42.26 // indirect
github.com/aws/aws-sdk-go-v2/service/ssm v1.68.5 // indirect
github.com/aws/aws-sdk-go-v2/service/sso v1.30.16 // indirect
github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.20 // indirect
github.com/aws/aws-sdk-go-v2/service/sts v1.42.0 // indirect
github.com/aws/smithy-go v1.25.0 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/boombuler/barcode v1.1.0 // indirect
github.com/brunoga/deep v1.2.4 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/cloudflare/circl v1.6.3 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
github.com/emicklei/go-restful/v3 v3.13.0 // indirect
github.com/evanphx/json-patch/v5 v5.9.11 // indirect
github.com/fatih/structs v1.1.0 // indirect
github.com/fsnotify/fsnotify v1.9.0 // indirect
github.com/fxamacker/cbor/v2 v2.9.0 // indirect
github.com/go-errors/errors v1.5.1 // indirect
github.com/go-logr/zapr v1.3.0 // indirect
github.com/go-openapi/jsonpointer v0.22.5 // indirect
github.com/go-openapi/jsonreference v0.21.5 // indirect
github.com/go-openapi/swag v0.25.5 // indirect
github.com/go-openapi/swag/cmdutils v0.25.5 // indirect
github.com/go-openapi/swag/conv v0.25.5 // indirect
github.com/go-openapi/swag/fileutils v0.25.5 // indirect
github.com/go-openapi/swag/jsonname v0.25.5 // indirect
github.com/go-openapi/swag/jsonutils v0.25.5 // indirect
github.com/go-openapi/swag/loading v0.25.5 // indirect
github.com/go-openapi/swag/mangling v0.25.5 // indirect
github.com/go-openapi/swag/netutils v0.25.5 // indirect
github.com/go-openapi/swag/stringutils v0.25.5 // indirect
github.com/go-openapi/swag/typeutils v0.25.5 // indirect
github.com/go-openapi/swag/yamlutils v0.25.5 // indirect
github.com/go-sql-driver/mysql v1.9.3 // indirect
github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
github.com/golang-jwt/jwt/v4 v4.5.2 // indirect
github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
github.com/gonvenience/bunt v1.4.3 // indirect
github.com/gonvenience/idem v0.0.3 // indirect
github.com/gonvenience/neat v1.3.18 // indirect
github.com/gonvenience/term v1.0.5 // indirect
github.com/gonvenience/text v1.0.10 // indirect
github.com/gonvenience/ytbx v1.4.8 // indirect
github.com/google/gnostic-models v0.7.1 // indirect
github.com/google/go-github/v88 v88.0.0 // indirect
github.com/google/go-querystring v1.2.0 // indirect
github.com/google/pprof v0.0.0-20260402051712-545e8a4df936 // indirect
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
github.com/gruntwork-io/go-commons v0.17.2 // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/homeport/dyff v1.11.2 // indirect
github.com/huandu/xstrings v1.5.0 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/jackc/pgpassfile v1.0.0 // indirect
github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
github.com/jackc/pgx/v5 v5.9.0 // indirect
github.com/jackc/puddle/v2 v2.2.2 // indirect
github.com/jedib0t/go-pretty/v6 v6.6.7 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/knadh/koanf/maps v0.1.2 // indirect
github.com/knadh/koanf/parsers/yaml v0.1.0 // indirect
github.com/knadh/koanf/providers/env v1.0.0 // indirect
github.com/knadh/koanf/providers/file v1.1.2 // indirect
github.com/knadh/koanf/providers/posflag v0.1.0 // indirect
github.com/knadh/koanf/providers/structs v0.1.0 // indirect
github.com/knadh/koanf/v2 v2.3.0 // indirect
github.com/kylelemons/godebug v1.1.0 // indirect
github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
github.com/mattn/go-ciede2000 v0.0.0-20170301095244-782e8c62fec3 // indirect
github.com/mattn/go-colorable v0.1.14 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/mattn/go-runewidth v0.0.16 // indirect
github.com/mattn/go-zglob v0.0.6 // indirect
github.com/mitchellh/copystructure v1.2.0 // indirect
github.com/mitchellh/go-ps v1.0.0 // indirect
github.com/mitchellh/hashstructure v1.1.0 // indirect
github.com/mitchellh/reflectwalk v1.0.2 // indirect
github.com/moby/spdystream v0.5.1 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
github.com/pquerna/otp v1.5.0 // indirect
github.com/prometheus/common v0.67.5 // indirect
github.com/prometheus/procfs v0.20.1 // indirect
github.com/rivo/uniseg v0.4.7 // indirect
github.com/rs/zerolog v1.33.0 // indirect
github.com/russross/blackfriday/v2 v2.1.0 // indirect
github.com/sergi/go-diff v1.4.0 // indirect
github.com/spf13/cobra v1.10.2 // indirect
github.com/spf13/pflag v1.0.10 // indirect
github.com/stretchr/objx v0.5.3 // indirect
github.com/texttheater/golang-levenshtein v1.0.1 // indirect
github.com/urfave/cli/v2 v2.27.7 // indirect
github.com/vektra/mockery/v3 v3.6.1 // indirect
github.com/virtuald/go-ordered-json v0.0.0-20170621173500-b18e6e673d74 // indirect
github.com/x448/float16 v0.8.4 // indirect
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
github.com/xeipuuv/gojsonschema v1.2.0 // indirect
github.com/xrash/smetrics v0.0.0-20250705151800-55b8f293f342 // indirect
go.yaml.in/yaml/v2 v2.4.4 // indirect
go.yaml.in/yaml/v3 v3.0.4 // indirect
golang.org/x/crypto v0.52.0 // indirect
golang.org/x/exp v0.0.0-20260312153236-7ab1446f8b90 // indirect
golang.org/x/mod v0.35.0 // indirect
golang.org/x/sys v0.45.0 // indirect
golang.org/x/term v0.43.0 // indirect
golang.org/x/text v0.37.0 // indirect
golang.org/x/time v0.15.0 // indirect
golang.org/x/tools v0.44.0 // indirect
google.golang.org/protobuf v1.36.12-0.20260120151049-f2248ac996af // indirect
gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
k8s.io/apiextensions-apiserver v0.36.0 // indirect
k8s.io/klog/v2 v2.140.0 // indirect
k8s.io/kube-openapi v0.0.0-20260317180543-43fb72c5454a // indirect
k8s.io/streaming v0.36.2 // indirect
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
sigs.k8s.io/randfill v1.0.0 // indirect
sigs.k8s.io/structured-merge-diff/v6 v6.3.2 // indirect
)
tool github.com/vektra/mockery/v3
replace github.com/gregjones/httpcache => github.com/actions-runner-controller/httpcache v0.2.0