log

* Add debug info while issuing request

* wip

* wip

* Rework tests

.github/dependabot.yml

@@ -1,18 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: "gomod" # See documentation for possible values
-    directory: "/" # Location of package manifests
-    schedule:
-      interval: "weekly"
-    groups:
-      gomod:
-        patterns:
-          - "*"
-  - package-ecosystem: github-actions
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    groups:
-      actions:
-        patterns:
-          - "*"

.github/workflows/go.yaml

@@ -19,7 +19,7 @@ jobs:
   fmt:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
@@ -32,7 +32,7 @@ jobs:
   mocks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
@@ -45,13 +45,13 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
           cache: false
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20
+        uses: golangci/golangci-lint-action@4afd733a84b1f43292c63897423277bb7f4313a9
         with:
           only-new-issues: true
           version: v2.5.0
@@ -59,10 +59,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
           cache: true
       - name: Run tests
-        run: go test ./... -race
+        run: go test ./...

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright GitHub, Inc.
+Copyright (c) 2025 GitHub
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,6 +1,6 @@
-# GitHub Actions Runner Scale Set Client (Public Preview)
+# GitHub Actions Runner Scale Set Client (Private Preview)
 
-> Status: **Public Preview** – While the API is stable, interfaces and examples in this repository may change.
+> Status: **Private Preview** – While the API is stable, interfaces and examples in this repository may change.
 
 This repository provides a standalone Go client for the GitHub Actions **Runner Scale Set** APIs. It is extracted from the `actions-runner-controller` project so that platform teams, integrators, and infrastructure providers can build **their own custom autoscaling solutions** for GitHub Actions runners.
 
@@ -12,7 +12,7 @@ You do *not* need to adopt the full controller (and Kubernetes) to take advantag
 
 A runner scale set is a group of self-hosted runners that autoscales based on workflow demand. Here's how it works:
 
-1. **Registration**: You create a scale set with a name, which also serves as the label workflows use to target it (e.g., `runs-on: my-scale-set`). Multiple labels can be assigned per scale set. Like regular self-hosted runners, scale sets can be registered at the repository, organization, or enterprise level.
+1. **Registration**: You create a scale set with a name, which also serves as the label workflows use to target it (e.g., `runs-on: my-scale-set`). Like regular self-hosted runners, scale sets can be registered at the repository, organization, or enterprise level.
 2. **Polling**: Your scale set client continuously polls the API, reporting its maximum capacity (how many runners it can produce).
 3. **Job matching**: GitHub matches jobs to your scale set based on the label and runner group policies, just like regular self-hosted runners.
 4. **Scaling signal**: The API responds with how many runners your scale set needs online (`statistics.TotalAssignedJobs`).

client.go

@@ -7,6 +7,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log/slog"
 	"maps"
 	"net/http"
 	"net/url"
@@ -126,9 +127,9 @@ type ProxyFunc func(req *http.Request) (*url.URL, error)
 type SystemInfo struct {
 	// System is the name of the scale set implementation
 	System string `json:"system"`
-	// Version is the version of the client
+	// Version is the version of the controller
 	Version string `json:"version"`
-	// CommitSHA is the git commit SHA of the client
+	// CommitSHA is the git commit SHA of the controller
 	CommitSHA string `json:"commit_sha"`
 	// ScaleSetID is the ID of the scale set
 	ScaleSetID int `json:"scale_set_id"`
@@ -222,7 +223,6 @@ type userAgent struct {
 	SystemInfo
 	BuildVersion   string `json:"build_version"`
 	BuildCommitSHA string `json:"build_commit_sha"`
-	Kind           string `json:"kind"`
 }
 
 func (c *Client) newGitHubAPIRequest(ctx context.Context, method, path string, body io.Reader) (*http.Request, error) {
@@ -510,14 +510,6 @@ func parseRunnerScaleSetMessageResponse(respBody io.Reader) (*RunnerScaleSetMess
 		}
 
 		switch messageType.MessageType {
-		case MessageTypeJobAvailable:
-			var jobAvailable JobAvailable
-			if err := json.Unmarshal(msg, &jobAvailable); err != nil {
-				return nil, fmt.Errorf("failed to decode job available: %w", err)
-			}
-
-			message.JobAvailableMessages = append(message.JobAvailableMessages, &jobAvailable)
-
 		case MessageTypeJobAssigned:
 			var jobAssigned JobAssigned
 			if err := json.Unmarshal(msg, &jobAssigned); err != nil {
@@ -554,6 +546,7 @@ func parseRunnerScaleSetMessageResponse(respBody io.Reader) (*RunnerScaleSetMess
 // It exposes client options that could be overwritten, providing ability to specify different retry policies or TLS settings, proxy, etc.
 func (c *Client) MessageSessionClient(ctx context.Context, runnerScaleSetID int, owner string, options ...HTTPOption) (*MessageSessionClient, error) {
 	c.mu.Lock()
+	defer c.mu.Unlock()
 
 	// Copy original options
 	httpClientOption := c.httpClientOption
@@ -574,8 +567,6 @@ func (c *Client) MessageSessionClient(ctx context.Context, runnerScaleSetID int,
 		scaleSetID:   runnerScaleSetID,
 		session:      nil,
 	}
-	// Unlock the client to allow createMessageSession to call public methods that require locking
-	c.mu.Unlock()
 
 	if err := client.createMessageSession(ctx); err != nil {
 		return nil, fmt.Errorf("failed to create message session: %w", err)
@@ -845,6 +836,8 @@ func (c *Client) getActionsServiceAdminConnection(ctx context.Context, rt *regis
 		return nil, fmt.Errorf("failed to get actions service admin connection: %w", err)
 	}
 
+	slog.Info("got connection", *adminConnection.ActionsServiceURL, c.userAgent)
+
 	return adminConnection, nil
 }
 

common_client.go

@@ -75,20 +75,12 @@ func sendRequest(c *http.Client, req *http.Request) (*http.Response, error) {
 }
 
 type httpClientOption struct {
-	logger *slog.Logger
-
-	// Options for built-in retryable HTTP client.
-	// Ignored if a custom retryable HTTP client is provided via WithRetryableHTTPClint.
-	retryMax     int
-	retryWaitMax time.Duration
-
-	// fields added to the transport if specified
+	logger                *slog.Logger
+	retryMax              int
+	retryWaitMax          time.Duration
 	rootCAs               *x509.CertPool
 	tlsInsecureSkipVerify bool
 	proxyFunc             ProxyFunc
-	timeout               time.Duration
-
-	retryableHTTPClient *retryablehttp.Client
 }
 
 func (o *httpClientOption) defaults() {
@@ -101,26 +93,14 @@ func (o *httpClientOption) defaults() {
 	if o.retryWaitMax == 0 {
 		o.retryWaitMax = 30 * time.Second
 	}
-	if o.timeout == 0 {
-		o.timeout = 5 * time.Minute
-	}
 }
 
 func (o *httpClientOption) newRetryableHTTPClient() (*retryablehttp.Client, error) {
-	var retryClient *retryablehttp.Client
-	if o.retryableHTTPClient != nil {
-		retryClient = o.retryableHTTPClient
-	} else {
-		retryClient = retryablehttp.NewClient()
-		retryClient.RetryMax = o.retryMax
-		retryClient.RetryWaitMax = o.retryWaitMax
-	}
-
-	if retryClient.HTTPClient.Timeout == 0 {
-		retryClient.HTTPClient.Timeout = o.timeout
-	}
-
+	retryClient := retryablehttp.NewClient()
 	retryClient.Logger = o.logger
+	retryClient.RetryMax = o.retryMax
+	retryClient.RetryWaitMax = o.retryWaitMax
+	retryClient.HTTPClient.Timeout = 5 * time.Minute // timeout must be > 1m to accomodate long polling
 
 	transport, ok := retryClient.HTTPClient.Transport.(*http.Transport)
 	if !ok {
@@ -140,9 +120,7 @@ func (o *httpClientOption) newRetryableHTTPClient() (*retryablehttp.Client, erro
 		transport.TLSClientConfig.InsecureSkipVerify = true
 	}
 
-	if o.proxyFunc != nil {
-		transport.Proxy = o.proxyFunc
-	}
+	transport.Proxy = o.proxyFunc
 
 	retryClient.HTTPClient.Transport = transport
 
@@ -159,30 +137,18 @@ func (c *commonClient) setUserAgent() {
 		SystemInfo:     c.systemInfo,
 		BuildVersion:   buildInfo.version,
 		BuildCommitSHA: buildInfo.commitSHA,
-		Kind:           "scaleset",
 	})
 	c.userAgent = string(b)
+	slog.Info("user agent", "useragent", c.userAgent)
 }
 
 // HTTPOption defines a functional option for configuring the Client.
 type HTTPOption func(*httpClientOption)
 
-// WithRetryableHTTPClint allows users to provide a custom retryable HTTP client.
-// If not set, a default client will be used with the specified retry and timeout settings.
-func WithRetryableHTTPClint(client *retryablehttp.Client) HTTPOption {
-	return func(c *httpClientOption) {
-		c.retryableHTTPClient = client
-	}
-}
-
 // WithLogger sets a custom logger for the Client.
-// If nil is passed, a discard logger will be used.
-func WithLogger(logger *slog.Logger) HTTPOption {
+func WithLogger(logger slog.Logger) HTTPOption {
 	return func(c *httpClientOption) {
-		if logger == nil {
-			logger = slog.New(slog.DiscardHandler)
-		}
-		c.logger = logger
+		c.logger = &logger
 	}
 }
 
@@ -220,10 +186,3 @@ func WithProxy(proxyFunc ProxyFunc) HTTPOption {
 		c.proxyFunc = proxyFunc
 	}
 }
-
-// WithTimeout sets a timeout for the Client.
-func WithTimeout(duration time.Duration) HTTPOption {
-	return func(c *httpClientOption) {
-		c.timeout = duration
-	}
-}

common_client_test.go

@@ -3,15 +3,12 @@ package scaleset
 import (
 	"encoding/json"
 	"io"
-	"log/slog"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
 	"testing"
-	"time"
 
 	"github.com/actions/scaleset/internal/testserver"
-	"github.com/hashicorp/go-retryablehttp"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/http/httpproxy"
@@ -127,7 +124,6 @@ func TestUserAgent(t *testing.T) {
 		SystemInfo:     testSystemInfo,
 		BuildCommitSHA: sha,
 		BuildVersion:   version,
-		Kind:           "scaleset",
 	}
 	b, err := json.Marshal(wantInfo)
 	require.NoError(t, err, "failed to marshal expected user agent")
@@ -148,7 +144,6 @@ func TestUserAgent(t *testing.T) {
 		SystemInfo:     userAgentInfo,
 		BuildCommitSHA: sha,
 		BuildVersion:   version,
-		Kind:           "scaleset",
 	}
 	b, err = json.Marshal(wantInfo)
 	require.NoError(t, err, "failed to marshal expected user agent after SetSystemInfo")
@@ -156,141 +151,3 @@ func TestUserAgent(t *testing.T) {
 
 	assert.Equal(t, want, got)
 }
-
-func TestWithLogger(t *testing.T) {
-	newJSONHandler := func() slog.Handler {
-		return slog.NewJSONHandler(
-			io.Discard,
-			&slog.HandlerOptions{
-				AddSource: true,
-				Level:     slog.LevelError,
-			},
-		)
-	}
-	t.Run("WithLogger(nil) sets a discard logger on raw httpClientOption", func(t *testing.T) {
-		opts := httpClientOption{}
-		WithLogger(nil)(&opts)
-		require.NotNil(t, opts.logger, "WithLogger(nil) should set a discard logger, not leave it nil")
-		assert.Equal(t, slog.DiscardHandler, opts.logger.Handler(), "WithLogger(nil) should set a discard logger handler")
-	})
-
-	t.Run("WithLogger(customLogger) assigns the provided logger", func(t *testing.T) {
-		handler := newJSONHandler()
-		customLogger := slog.New(handler)
-		opts := httpClientOption{}
-		WithLogger(customLogger)(&opts)
-		require.Equal(t, customLogger, opts.logger, "WithLogger should assign the provided logger")
-		assert.Equal(t, handler, opts.logger.Handler(), "WithLogger should set the provided logger handler")
-	})
-
-	t.Run("WithLogger(nil) propagates discard logger to retryable HTTP client", func(t *testing.T) {
-		opts := httpClientOption{}
-		WithLogger(nil)(&opts)
-		client, err := opts.newRetryableHTTPClient()
-		require.NoError(t, err)
-		assert.NotNil(t, client.Logger, "retryable client should have logger set from WithLogger(nil)")
-
-		logger, ok := client.Logger.(*slog.Logger)
-		require.True(t, ok, "retryable client logger should be a *slog.Logger")
-		assert.Same(t, opts.logger, logger, "retryable client logger should be the same logger set by WithLogger(nil)")
-		assert.Equal(t, slog.DiscardHandler, logger.Handler(), "retryable client logger should be a discard logger from WithLogger(nil)")
-	})
-
-	t.Run("WithLogger(customLogger) propagates custom logger to retryable HTTP client", func(t *testing.T) {
-		handler := newJSONHandler()
-		customLogger := slog.New(handler)
-		opts := httpClientOption{}
-		WithLogger(customLogger)(&opts)
-		client, err := opts.newRetryableHTTPClient()
-		require.NoError(t, err)
-		assert.NotNil(t, client.Logger, "retryable client should have logger set")
-		logger, ok := client.Logger.(*slog.Logger)
-		require.True(t, ok, "retryable client logger should be a *slog.Logger")
-		assert.Equal(t, handler, logger.Handler(), "retryable client logger should be the custom logger from WithLogger")
-	})
-}
-
-// TestWithRetryableHTTPClient verifies that a custom retryable HTTP client
-// provided via WithRetryableHTTPClient is actually used instead of the built-in one
-func TestWithRetryableHTTPClient(t *testing.T) {
-	t.Run("uses custom retryable client instead of built-in", func(t *testing.T) {
-		attemptCount := 0
-		server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			attemptCount++
-			if attemptCount == 1 {
-				w.WriteHeader(http.StatusServiceUnavailable)
-				return
-			}
-			w.WriteHeader(http.StatusOK)
-			w.Write([]byte(`{"result": "success"}`))
-		}))
-		defer server.Close()
-
-		// Create a custom retryable HTTP client with specific retry configuration
-		customRetryClient := retryablehttp.NewClient()
-		customRetryClient.RetryMax = 3
-		customRetryClient.RetryWaitMax = 10 * time.Millisecond
-
-		// Create options with the custom retryable client
-		opts := defaultHTTPClientOption()
-		WithRetryableHTTPClint(customRetryClient)(&opts)
-
-		// Verify that the custom client is set in options
-		assert.NotNil(t, opts.retryableHTTPClient)
-		assert.Equal(t, customRetryClient, opts.retryableHTTPClient)
-
-		// Create the common client with custom retryable client
-		client := newCommonClient(testSystemInfo, opts)
-
-		// Make a request that will trigger a retry
-		req, err := http.NewRequest("GET", server.URL, nil)
-		require.NoError(t, err)
-
-		resp, err := client.do(req)
-		require.NoError(t, err)
-
-		// Should succeed after retry
-		assert.Equal(t, http.StatusOK, resp.StatusCode)
-		assert.Equal(t, 2, attemptCount)
-
-		// Verify that the client used is the custom one by checking newRetryableHTTPClient
-		retrievedRetryClient, err := client.newRetryableHTTPClient()
-		require.NoError(t, err)
-		assert.Equal(t, customRetryClient, retrievedRetryClient, "should return the custom retryable client")
-	})
-
-	t.Run("respects custom client's retry configuration over built-in defaults", func(t *testing.T) {
-		attemptCount := 0
-		server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			attemptCount++
-			w.WriteHeader(http.StatusServiceUnavailable)
-		}))
-		defer server.Close()
-
-		// Create custom client with limited retries
-		customRetryClient := retryablehttp.NewClient()
-		customRetryClient.RetryMax = 1 // Only 1 retry (2 total attempts)
-		customRetryClient.RetryWaitMax = 5 * time.Millisecond
-
-		opts := defaultHTTPClientOption()
-		WithRetryableHTTPClint(customRetryClient)(&opts)
-
-		client := newCommonClient(testSystemInfo, opts)
-
-		req, err := http.NewRequest("GET", server.URL, nil)
-		require.NoError(t, err)
-
-		resp, err := client.do(req)
-		// When all retries are exhausted with a retryable error, the client gives up
-		// and an error is returned
-		if err != nil {
-			// Expected: request failed after exhausting retries
-			assert.Contains(t, err.Error(), "giving up after 2 attempt(s)")
-		} else {
-			// Or the final response is returned
-			assert.Equal(t, http.StatusServiceUnavailable, resp.StatusCode)
-		}
-		// Should have tried 1 initial + 1 retry = 2 times total
-		assert.Equal(t, 2, attemptCount)
-	})
-}

go.mod

@@ -8,15 +8,14 @@ require (
 	github.com/google/go-github/v79 v79.0.0
 	github.com/google/uuid v1.6.0
 	github.com/hashicorp/go-retryablehttp v0.7.8
-	github.com/spf13/cobra v1.10.2
+	github.com/spf13/cobra v1.10.1
 	github.com/stretchr/testify v1.11.1
-	golang.org/x/net v0.52.0
+	golang.org/x/net v0.47.0
 )
 
 require (
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/brunoga/deep v1.2.4 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/containerd/errdefs v1.0.0 // indirect
 	github.com/containerd/errdefs/pkg v0.3.0 // indirect
 	github.com/containerd/log v0.1.0 // indirect
@@ -27,7 +26,7 @@ require (
 	github.com/fatih/structs v1.1.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fsnotify/fsnotify v1.8.0 // indirect
-	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
@@ -63,25 +62,23 @@ require (
 	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
-	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
-	go.opentelemetry.io/otel v1.39.0 // indirect
+	go.opentelemetry.io/otel v1.35.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.35.0 // indirect
-	go.opentelemetry.io/otel/metric v1.39.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.39.0 // indirect
-	go.opentelemetry.io/otel/sdk/metric v1.39.0 // indirect
-	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/trace v1.35.0 // indirect
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
-	golang.org/x/mod v0.33.0 // indirect
-	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/sys v0.42.0 // indirect
-	golang.org/x/telemetry v0.0.0-20260209163413-e7419c687ee4 // indirect
-	golang.org/x/term v0.41.0 // indirect
-	golang.org/x/text v0.35.0 // indirect
+	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54 // indirect
+	golang.org/x/term v0.37.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	golang.org/x/tools v0.42.0 // indirect
-	google.golang.org/grpc v1.79.3 // indirect
-	google.golang.org/protobuf v1.36.10 // indirect
+	golang.org/x/tools v0.39.0 // indirect
+	google.golang.org/grpc v1.72.2 // indirect
+	google.golang.org/protobuf v1.36.9 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	gotest.tools/v3 v3.5.2 // indirect
 )

go.sum

@@ -6,8 +6,6 @@ github.com/brunoga/deep v1.2.4 h1:Aj9E9oUbE+ccbyh35VC/NHlzzjfIVU69BXu2mt2LmL8=
 github.com/brunoga/deep v1.2.4/go.mod h1:GDV6dnXqn80ezsLSZ5Wlv1PdKAWAO4L5PnKYtv2dgaI=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
-github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
 github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
 github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
@@ -36,8 +34,8 @@ github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSw
 github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
 github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
-github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-viper/mapstructure/v2 v2.4.0 h1:EBsztssimR/CONLSZZ04E8qAkxNYq4Qp9LvH92wZUgs=
@@ -120,16 +118,16 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
-github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
-github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
+github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
+github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.33.0 h1:1cU2KZkvPxNyfgEmhHAz/1A9Bz+llsdYzklWFzgp0r8=
 github.com/rs/zerolog v1.33.0/go.mod h1:/7mN4D5sKwJLZQ2b/znpjC3/GQWY/xaDXUM0kKWRHss=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
-github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
+github.com/spf13/cobra v1.10.1 h1:lJeBwCfmrnXthfAupyUTzJ/J4Nc1RsHC/mSRU2dll/s=
+github.com/spf13/cobra v1.10.1/go.mod h1:7SmJGaTHFVBY0jW4NXGluQoLvhqFQM+6XSKD+P4XaB0=
 github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
 github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
@@ -147,59 +145,58 @@ github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHo
 github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
 github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17UxZ74=
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
-go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
-go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
+go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
 go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 h1:sbiXRNDSWJOTobXh5HyQKjq6wUC5tNybqjIqDpAY4CU=
 go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0/go.mod h1:69uWxva0WgAA/4bu2Yy70SLDBwZXuQ6PbBpbsa5iZrQ=
-go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
-go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
+go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
+go.opentelemetry.io/otel v1.35.0/go.mod h1:UEqy8Zp11hpkUrL73gSlELM0DupHoiq72dR+Zqel/+Y=
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-go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
-go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
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-go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
-go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
-go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
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-go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 h1:2dVuKD2vS7b0QIHQbpyTISPd0LeHDbnYEryqj5Q1ug8=
 golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56/go.mod h1:M4RDyNAINzryxdtnbRXRL/OHtkFuWGRjvuhBJpk2IlY=
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-golang.org/x/net v0.52.0/go.mod h1:R1MAz7uMZxVMualyPXb+VaqGSa3LIaUqk0eEt3w36Sw=
-golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
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 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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-golang.org/x/telemetry v0.0.0-20260209163413-e7419c687ee4/go.mod h1:g5NllXBEermZrmR51cJDQxmJUHUOfRAaNyWBM+R+548=
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 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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listener/listener.go

@@ -49,61 +49,25 @@ func (c *Config) Validate() error {
 type Client interface {
 	GetMessage(ctx context.Context, lastMessageID, maxCapacity int) (*scaleset.RunnerScaleSetMessage, error)
 	DeleteMessage(ctx context.Context, messageID int) error
-	AcquireJobs(ctx context.Context, requestIDs []int64) ([]int64, error)
 	Session() scaleset.RunnerScaleSetSession
 }
 
-// MetricsRecorder defines the hook methods that will be called by the listener at
-// various points in the message handling process. This allows for custom
-// metrics to be collected without coupling the listener to a specific metrics
-// implementation. The methods in this interface will be called with relevant
-// information about the message handling process, such as the number of jobs
-// started/completed, the desired runner count, and any errors that occur.
-// Implementers can use this information to track the performance and behavior
-// of the listener and the scaleset service.
-type MetricsRecorder interface {
-	RecordStatistics(statistics *scaleset.RunnerScaleSetStatistic)
-	RecordJobStarted(msg *scaleset.JobStarted)
-	RecordJobCompleted(msg *scaleset.JobCompleted)
-	RecordDesiredRunners(count int)
-}
-
-type discardMetricsRecorder struct{}
-
-func (d *discardMetricsRecorder) RecordStatistics(statistics *scaleset.RunnerScaleSetStatistic) {}
-func (d *discardMetricsRecorder) RecordJobStarted(msg *scaleset.JobStarted)                     {}
-func (d *discardMetricsRecorder) RecordJobCompleted(msg *scaleset.JobCompleted)                 {}
-func (d *discardMetricsRecorder) RecordDesiredRunners(count int)                                {}
+type Option func(*Listener)
 
 // Listener listens for messages from the scaleset service and handles them. It automatically handles session
 // creation/deletion/refreshing and message polling and acking.
 type Listener struct {
 	// The main client responsible for communicating with the scaleset service
-	client          Client
-	metricsRecorder MetricsRecorder
+	client Client
 
 	// Configuration for the listener
-	scaleSetID       int
-	maxRunners       atomic.Uint32
-	latestStatistics *scaleset.RunnerScaleSetStatistic
+	scaleSetID int
+	maxRunners atomic.Uint32
 
 	// configuration for the listener
 	logger *slog.Logger
 }
 
-type Option func(*Listener)
-
-// WithMetricsRecorder sets the MetricsRecorder for the listener. If not set, a no-op recorder will be used.
-// If the nil is passed, the MetricsRecorder will not be updated and the existing one will be used (which is a no-op by default).
-func WithMetricsRecorder(recorder MetricsRecorder) Option {
-	return func(l *Listener) {
-		if recorder == nil {
-			return
-		}
-		l.metricsRecorder = recorder
-	}
-}
-
 // SetMaxRunners sets the capacity of the scaleset. It is concurrently
 // safe to update the max runners during listener.Run.
 func (l *Listener) SetMaxRunners(count int) {
@@ -121,17 +85,12 @@ func New(client Client, config Config, options ...Option) (*Listener, error) {
 	}
 
 	listener := &Listener{
-		client:          client,
-		metricsRecorder: &discardMetricsRecorder{},
-		scaleSetID:      config.ScaleSetID,
-		logger:          config.Logger,
+		client:     client,
+		scaleSetID: config.ScaleSetID,
+		logger:     config.Logger,
 	}
 	listener.SetMaxRunners(config.MaxRunners)
 
-	for _, option := range options {
-		option(listener)
-	}
-
 	return listener, nil
 }
 
@@ -155,17 +114,13 @@ func (l *Listener) Run(ctx context.Context, scaler Scaler) error {
 			return fmt.Errorf("session statistics is nil")
 		}
 
-		l.handleStatistics(ctx, initialSession.Statistics)
-
 		l.logger.Info(
 			"Handling initial session statistics",
 			slog.Int("totalAssignedJobs", initialSession.Statistics.TotalAssignedJobs),
 		)
-		desiredCount, err := scaler.HandleDesiredRunnerCount(ctx, initialSession.Statistics.TotalAssignedJobs)
-		if err != nil {
+		if _, err := scaler.HandleDesiredRunnerCount(ctx, initialSession.Statistics.TotalAssignedJobs); err != nil {
 			return fmt.Errorf("handling initial message failed: %w", err)
 		}
-		l.metricsRecorder.RecordDesiredRunners(desiredCount)
 	}
 
 	var lastMessageID int
@@ -187,7 +142,7 @@ func (l *Listener) Run(ctx context.Context, scaler Scaler) error {
 		}
 
 		if msg == nil {
-			_, err := scaler.HandleDesiredRunnerCount(ctx, l.latestStatistics.TotalAssignedJobs)
+			_, err := scaler.HandleDesiredRunnerCount(ctx, 0)
 			if err != nil {
 				return fmt.Errorf("handling nil message failed: %w", err)
 			}
@@ -205,58 +160,24 @@ func (l *Listener) Run(ctx context.Context, scaler Scaler) error {
 }
 
 func (l *Listener) handleMessage(ctx context.Context, handler Scaler, msg *scaleset.RunnerScaleSetMessage) error {
-	l.handleStatistics(ctx, msg.Statistics)
-
 	if err := l.client.DeleteMessage(ctx, msg.MessageID); err != nil {
 		return fmt.Errorf("failed to delete message: %w", err)
 	}
 
-	if len(msg.JobAvailableMessages) > 0 {
-		if err := l.acquireAvailableJobs(ctx, msg.JobAvailableMessages); err != nil {
-			return fmt.Errorf("failed to acquire available jobs: %w", err)
-		}
-	}
-
 	for _, jobStarted := range msg.JobStartedMessages {
-		l.metricsRecorder.RecordJobStarted(jobStarted)
 		if err := handler.HandleJobStarted(ctx, jobStarted); err != nil {
 			return fmt.Errorf("failed to handle job started: %w", err)
 		}
 	}
 	for _, jobCompleted := range msg.JobCompletedMessages {
-		l.metricsRecorder.RecordJobCompleted(jobCompleted)
 		if err := handler.HandleJobCompleted(ctx, jobCompleted); err != nil {
 			return fmt.Errorf("failed to handle job completed: %w", err)
 		}
 	}
 
-	desiredCount, err := handler.HandleDesiredRunnerCount(ctx, msg.Statistics.TotalAssignedJobs)
-	if err != nil {
+	if _, err := handler.HandleDesiredRunnerCount(ctx, msg.Statistics.TotalAssignedJobs); err != nil {
 		return fmt.Errorf("failed to handle desired runner count: %w", err)
 	}
-	l.metricsRecorder.RecordDesiredRunners(desiredCount)
 
 	return nil
 }
-
-func (l *Listener) acquireAvailableJobs(ctx context.Context, jobsAvailable []*scaleset.JobAvailable) error {
-	ids := make([]int64, 0, len(jobsAvailable))
-	for _, job := range jobsAvailable {
-		ids = append(ids, job.RunnerRequestID)
-	}
-
-	l.logger.Info("Acquiring jobs", slog.Int("count", len(ids)))
-
-	acquired, err := l.client.AcquireJobs(ctx, ids)
-	if err != nil {
-		return fmt.Errorf("acquiring jobs: %w", err)
-	}
-
-	l.logger.Info("Jobs acquired", slog.Int("count", len(acquired)))
-	return nil
-}
-
-func (l *Listener) handleStatistics(ctx context.Context, msg *scaleset.RunnerScaleSetStatistic) {
-	l.latestStatistics = msg
-	l.metricsRecorder.RecordStatistics(msg)
-}

listener/listener_test.go

@@ -75,37 +75,39 @@ func TestListener_Run(t *testing.T) {
 		client := NewMockClient(t)
 
 		uuid := uuid.New()
-		initialStatistics := &scaleset.RunnerScaleSetStatistic{
-			TotalAssignedJobs: 2,
-		}
 		session := scaleset.RunnerScaleSetSession{
 			SessionID:               uuid,
 			OwnerName:               "example",
 			RunnerScaleSet:          &scaleset.RunnerScaleSet{},
 			MessageQueueURL:         "https://example.com",
 			MessageQueueAccessToken: "1234567890",
-			Statistics:              initialStatistics,
+			Statistics:              &scaleset.RunnerScaleSetStatistic{},
 		}
 
 		client.On("Session").Return(session).Once()
 
-		metricsRecorder := NewMockMetricsRecorder(t)
-		metricsRecorder.On("RecordStatistics", initialStatistics).Once()
-		metricsRecorder.On("RecordDesiredRunners", initialStatistics.TotalAssignedJobs).
-			Return(initialStatistics.TotalAssignedJobs, nil).
-			Run(func(mock.Arguments) { cancel() }).
-			Once()
-
-		l, err := New(client, config, WithMetricsRecorder(metricsRecorder))
+		l, err := New(client, config)
 		require.Nil(t, err)
 
+		var called bool
 		handler := NewMockScaler(t)
-		handler.On("HandleDesiredRunnerCount", mock.Anything, mock.Anything).
-			Return(initialStatistics.TotalAssignedJobs, nil).
+		handler.On(
+			"HandleDesiredRunnerCount",
+			mock.Anything,
+			mock.Anything,
+		).
+			Return(0, nil).
+			Run(
+				func(mock.Arguments) {
+					called = true
+					cancel()
+				},
+			).
 			Once()
 
 		err = l.Run(ctx, handler)
 		assert.ErrorIs(t, err, context.Canceled)
+		assert.True(t, called)
 	})
 
 	t.Run("cancel context after get message", func(t *testing.T) {
@@ -118,60 +120,61 @@ func TestListener_Run(t *testing.T) {
 			MaxRunners: 10,
 		}
 
+		client := NewMockClient(t)
 		uuid := uuid.New()
-		initialStatistics := &scaleset.RunnerScaleSetStatistic{
-			TotalAssignedJobs: 2,
-		}
-
 		session := scaleset.RunnerScaleSetSession{
 			SessionID:               uuid,
 			OwnerName:               "example",
 			RunnerScaleSet:          &scaleset.RunnerScaleSet{},
 			MessageQueueURL:         "https://example.com",
 			MessageQueueAccessToken: "1234567890",
-			Statistics:              initialStatistics,
+			Statistics:              &scaleset.RunnerScaleSetStatistic{},
 		}
 
 		msg := &scaleset.RunnerScaleSetMessage{
-			MessageID: 1,
-			Statistics: &scaleset.RunnerScaleSetStatistic{
-				TotalAssignedJobs: 3,
-			},
+			MessageID:  1,
+			Statistics: &scaleset.RunnerScaleSetStatistic{},
 		}
-
-		metricsRecorder := NewMockMetricsRecorder(t)
-		client := NewMockClient(t)
-		handler := NewMockScaler(t)
-
 		client.On("Session").Return(session).Once()
-		metricsRecorder.On("RecordStatistics", initialStatistics).Once()
-		metricsRecorder.On("RecordDesiredRunners", initialStatistics.TotalAssignedJobs).
-			Return(initialStatistics.TotalAssignedJobs, nil).
-			Once()
-		handler.On("HandleDesiredRunnerCount", mock.Anything, initialStatistics.TotalAssignedJobs).
-			Return(initialStatistics.TotalAssignedJobs, nil).
-			Once()
-
-		client.On("GetMessage", ctx, mock.Anything, 10).
+		client.On(
+			"GetMessage",
+			ctx,
+			mock.Anything,
+			10,
+		).
 			Return(msg, nil).
-			Run(func(mock.Arguments) { cancel() }).
+			Run(
+				func(mock.Arguments) {
+					cancel()
+				},
+			).
 			Once()
 
-		metricsRecorder.On("RecordStatistics", msg.Statistics).Once()
 		// Ensure delete message is called without cancel
-		client.On("DeleteMessage", context.WithoutCancel(ctx), mock.Anything).
-			Return(nil).
+		client.On(
+			"DeleteMessage",
+			context.WithoutCancel(ctx),
+			mock.Anything,
+		).Return(nil).Once()
+
+		handler := NewMockScaler(t)
+		handler.On(
+			"HandleDesiredRunnerCount",
+			mock.Anything,
+			0,
+		).
+			Return(0, nil).
 			Once()
 
-		metricsRecorder.On("RecordDesiredRunners", msg.Statistics.TotalAssignedJobs).
-			Return(msg.Statistics.TotalAssignedJobs, nil).
+		handler.On(
+			"HandleDesiredRunnerCount",
+			mock.Anything,
+			mock.Anything,
+		).
+			Return(0, nil).
 			Once()
 
-		handler.On("HandleDesiredRunnerCount", mock.Anything, msg.Statistics.TotalAssignedJobs).
-			Return(msg.Statistics.TotalAssignedJobs, nil).
-			Once()
-
-		l, err := New(client, config, WithMetricsRecorder(metricsRecorder))
+		l, err := New(client, config)
 		require.Nil(t, err)
 
 		err = l.Run(ctx, handler)

listener/mocks_test.go

@@ -38,74 +38,6 @@ func (_m *MockClient) EXPECT() *MockClient_Expecter {
 	return &MockClient_Expecter{mock: &_m.Mock}
 }
 
-// AcquireJobs provides a mock function for the type MockClient
-func (_mock *MockClient) AcquireJobs(ctx context.Context, requestIDs []int64) ([]int64, error) {
-	ret := _mock.Called(ctx, requestIDs)
-
-	if len(ret) == 0 {
-		panic("no return value specified for AcquireJobs")
-	}
-
-	var r0 []int64
-	var r1 error
-	if returnFunc, ok := ret.Get(0).(func(context.Context, []int64) ([]int64, error)); ok {
-		return returnFunc(ctx, requestIDs)
-	}
-	if returnFunc, ok := ret.Get(0).(func(context.Context, []int64) []int64); ok {
-		r0 = returnFunc(ctx, requestIDs)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).([]int64)
-		}
-	}
-	if returnFunc, ok := ret.Get(1).(func(context.Context, []int64) error); ok {
-		r1 = returnFunc(ctx, requestIDs)
-	} else {
-		r1 = ret.Error(1)
-	}
-	return r0, r1
-}
-
-// MockClient_AcquireJobs_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AcquireJobs'
-type MockClient_AcquireJobs_Call struct {
-	*mock.Call
-}
-
-// AcquireJobs is a helper method to define mock.On call
-//   - ctx context.Context
-//   - requestIDs []int64
-func (_e *MockClient_Expecter) AcquireJobs(ctx interface{}, requestIDs interface{}) *MockClient_AcquireJobs_Call {
-	return &MockClient_AcquireJobs_Call{Call: _e.mock.On("AcquireJobs", ctx, requestIDs)}
-}
-
-func (_c *MockClient_AcquireJobs_Call) Run(run func(ctx context.Context, requestIDs []int64)) *MockClient_AcquireJobs_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		var arg0 context.Context
-		if args[0] != nil {
-			arg0 = args[0].(context.Context)
-		}
-		var arg1 []int64
-		if args[1] != nil {
-			arg1 = args[1].([]int64)
-		}
-		run(
-			arg0,
-			arg1,
-		)
-	})
-	return _c
-}
-
-func (_c *MockClient_AcquireJobs_Call) Return(int64s []int64, err error) *MockClient_AcquireJobs_Call {
-	_c.Call.Return(int64s, err)
-	return _c
-}
-
-func (_c *MockClient_AcquireJobs_Call) RunAndReturn(run func(ctx context.Context, requestIDs []int64) ([]int64, error)) *MockClient_AcquireJobs_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
 // DeleteMessage provides a mock function for the type MockClient
 func (_mock *MockClient) DeleteMessage(ctx context.Context, messageID int) error {
 	ret := _mock.Called(ctx, messageID)
@@ -281,193 +213,6 @@ func (_c *MockClient_Session_Call) RunAndReturn(run func() scaleset.RunnerScaleS
 	return _c
 }
 
-// NewMockMetricsRecorder creates a new instance of MockMetricsRecorder. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockMetricsRecorder(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockMetricsRecorder {
-	mock := &MockMetricsRecorder{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
-
-// MockMetricsRecorder is an autogenerated mock type for the MetricsRecorder type
-type MockMetricsRecorder struct {
-	mock.Mock
-}
-
-type MockMetricsRecorder_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockMetricsRecorder) EXPECT() *MockMetricsRecorder_Expecter {
-	return &MockMetricsRecorder_Expecter{mock: &_m.Mock}
-}
-
-// RecordDesiredRunners provides a mock function for the type MockMetricsRecorder
-func (_mock *MockMetricsRecorder) RecordDesiredRunners(count int) {
-	_mock.Called(count)
-	return
-}
-
-// MockMetricsRecorder_RecordDesiredRunners_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'RecordDesiredRunners'
-type MockMetricsRecorder_RecordDesiredRunners_Call struct {
-	*mock.Call
-}
-
-// RecordDesiredRunners is a helper method to define mock.On call
-//   - count int
-func (_e *MockMetricsRecorder_Expecter) RecordDesiredRunners(count interface{}) *MockMetricsRecorder_RecordDesiredRunners_Call {
-	return &MockMetricsRecorder_RecordDesiredRunners_Call{Call: _e.mock.On("RecordDesiredRunners", count)}
-}
-
-func (_c *MockMetricsRecorder_RecordDesiredRunners_Call) Run(run func(count int)) *MockMetricsRecorder_RecordDesiredRunners_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		var arg0 int
-		if args[0] != nil {
-			arg0 = args[0].(int)
-		}
-		run(
-			arg0,
-		)
-	})
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordDesiredRunners_Call) Return() *MockMetricsRecorder_RecordDesiredRunners_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordDesiredRunners_Call) RunAndReturn(run func(count int)) *MockMetricsRecorder_RecordDesiredRunners_Call {
-	_c.Run(run)
-	return _c
-}
-
-// RecordJobCompleted provides a mock function for the type MockMetricsRecorder
-func (_mock *MockMetricsRecorder) RecordJobCompleted(msg *scaleset.JobCompleted) {
-	_mock.Called(msg)
-	return
-}
-
-// MockMetricsRecorder_RecordJobCompleted_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'RecordJobCompleted'
-type MockMetricsRecorder_RecordJobCompleted_Call struct {
-	*mock.Call
-}
-
-// RecordJobCompleted is a helper method to define mock.On call
-//   - msg *scaleset.JobCompleted
-func (_e *MockMetricsRecorder_Expecter) RecordJobCompleted(msg interface{}) *MockMetricsRecorder_RecordJobCompleted_Call {
-	return &MockMetricsRecorder_RecordJobCompleted_Call{Call: _e.mock.On("RecordJobCompleted", msg)}
-}
-
-func (_c *MockMetricsRecorder_RecordJobCompleted_Call) Run(run func(msg *scaleset.JobCompleted)) *MockMetricsRecorder_RecordJobCompleted_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		var arg0 *scaleset.JobCompleted
-		if args[0] != nil {
-			arg0 = args[0].(*scaleset.JobCompleted)
-		}
-		run(
-			arg0,
-		)
-	})
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordJobCompleted_Call) Return() *MockMetricsRecorder_RecordJobCompleted_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordJobCompleted_Call) RunAndReturn(run func(msg *scaleset.JobCompleted)) *MockMetricsRecorder_RecordJobCompleted_Call {
-	_c.Run(run)
-	return _c
-}
-
-// RecordJobStarted provides a mock function for the type MockMetricsRecorder
-func (_mock *MockMetricsRecorder) RecordJobStarted(msg *scaleset.JobStarted) {
-	_mock.Called(msg)
-	return
-}
-
-// MockMetricsRecorder_RecordJobStarted_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'RecordJobStarted'
-type MockMetricsRecorder_RecordJobStarted_Call struct {
-	*mock.Call
-}
-
-// RecordJobStarted is a helper method to define mock.On call
-//   - msg *scaleset.JobStarted
-func (_e *MockMetricsRecorder_Expecter) RecordJobStarted(msg interface{}) *MockMetricsRecorder_RecordJobStarted_Call {
-	return &MockMetricsRecorder_RecordJobStarted_Call{Call: _e.mock.On("RecordJobStarted", msg)}
-}
-
-func (_c *MockMetricsRecorder_RecordJobStarted_Call) Run(run func(msg *scaleset.JobStarted)) *MockMetricsRecorder_RecordJobStarted_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		var arg0 *scaleset.JobStarted
-		if args[0] != nil {
-			arg0 = args[0].(*scaleset.JobStarted)
-		}
-		run(
-			arg0,
-		)
-	})
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordJobStarted_Call) Return() *MockMetricsRecorder_RecordJobStarted_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordJobStarted_Call) RunAndReturn(run func(msg *scaleset.JobStarted)) *MockMetricsRecorder_RecordJobStarted_Call {
-	_c.Run(run)
-	return _c
-}
-
-// RecordStatistics provides a mock function for the type MockMetricsRecorder
-func (_mock *MockMetricsRecorder) RecordStatistics(statistics *scaleset.RunnerScaleSetStatistic) {
-	_mock.Called(statistics)
-	return
-}
-
-// MockMetricsRecorder_RecordStatistics_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'RecordStatistics'
-type MockMetricsRecorder_RecordStatistics_Call struct {
-	*mock.Call
-}
-
-// RecordStatistics is a helper method to define mock.On call
-//   - statistics *scaleset.RunnerScaleSetStatistic
-func (_e *MockMetricsRecorder_Expecter) RecordStatistics(statistics interface{}) *MockMetricsRecorder_RecordStatistics_Call {
-	return &MockMetricsRecorder_RecordStatistics_Call{Call: _e.mock.On("RecordStatistics", statistics)}
-}
-
-func (_c *MockMetricsRecorder_RecordStatistics_Call) Run(run func(statistics *scaleset.RunnerScaleSetStatistic)) *MockMetricsRecorder_RecordStatistics_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		var arg0 *scaleset.RunnerScaleSetStatistic
-		if args[0] != nil {
-			arg0 = args[0].(*scaleset.RunnerScaleSetStatistic)
-		}
-		run(
-			arg0,
-		)
-	})
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordStatistics_Call) Return() *MockMetricsRecorder_RecordStatistics_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockMetricsRecorder_RecordStatistics_Call) RunAndReturn(run func(statistics *scaleset.RunnerScaleSetStatistic)) *MockMetricsRecorder_RecordStatistics_Call {
-	_c.Run(run)
-	return _c
-}
-
 // NewMockScaler creates a new instance of MockScaler. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
 // The first argument is typically a *testing.T value.
 func NewMockScaler(t interface {

session_client.go

@@ -234,71 +234,7 @@ func (c *MessageSessionClient) Session() RunnerScaleSetSession {
 	return *c.session
 }
 
-// AcquireJobs acquires the given job request IDs from the runner scale set.
-// If the current session token is expired, it refreshes the session and tries one more time.
-func (c *MessageSessionClient) AcquireJobs(ctx context.Context, requestIDs []int64) ([]int64, error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	ids, err := c.acquireJobs(ctx, requestIDs)
-	if err == nil {
-		return ids, nil
-	}
-
-	if !errors.Is(err, MessageQueueTokenExpiredError) {
-		return nil, fmt.Errorf("failed to acquire jobs: %w", err)
-	}
-
-	if err := c.refreshMessageSession(ctx); err != nil {
-		return nil, fmt.Errorf("failed to refresh message session: %w", err)
-	}
-
-	return c.acquireJobs(ctx, requestIDs)
-}
-
-func (c *MessageSessionClient) acquireJobs(ctx context.Context, requestIDs []int64) ([]int64, error) {
-	body, err := json.Marshal(requestIDs)
-	if err != nil {
-		return nil, fmt.Errorf("failed to marshal request ids: %w", err)
-	}
-
-	path := fmt.Sprintf("/%s/%d/acquirejobs", scaleSetEndpoint, c.scaleSetID)
-
-	c.innerClient.mu.Lock()
-	req, err := c.innerClient.newActionsServiceRequest(ctx, http.MethodPost, path, bytes.NewBuffer(body))
-	c.innerClient.mu.Unlock()
-	if err != nil {
-		return nil, fmt.Errorf("failed to create acquire jobs request: %w", err)
-	}
-
-	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.session.MessageQueueAccessToken))
-
-	resp, err := c.commonClient.do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to issue acquire jobs request: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode == http.StatusUnauthorized {
-		return nil, newRequestResponseError(req, resp, MessageQueueTokenExpiredError)
-	}
-
-	if resp.StatusCode != http.StatusOK {
-		return nil, newRequestResponseError(req, resp, fmt.Errorf("unexpected status code %s", resp.Status))
-	}
-
-	var result acquireJobsResponse
-	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
-		return nil, newRequestResponseError(req, resp, fmt.Errorf("failed to decode acquire jobs response: %w", err))
-	}
-
-	return result.Value, nil
-}
-
 func (c *MessageSessionClient) doSessionRequest(ctx context.Context, method, path string, requestData io.Reader, expectedResponseStatusCode int, responseUnmarshalTarget any) error {
-	c.innerClient.mu.Lock()
-	defer c.innerClient.mu.Unlock()
-
 	req, err := c.innerClient.newActionsServiceRequest(ctx, method, path, requestData)
 	if err != nil {
 		return fmt.Errorf("failed to create new actions service request: %w", err)

session_client_test.go

@@ -649,231 +649,3 @@ func TestDeleteMessage(t *testing.T) {
 		assert.Contains(t, err.Error(), "unexpected status code")
 	})
 }
-
-func TestAcquireJobs(t *testing.T) {
-	ctx := context.Background()
-	auth := actionsAuth{
-		token: "token",
-	}
-
-	t.Run("Acquire jobs successfully", func(t *testing.T) {
-		requestIDs := []int64{1, 2}
-		want := []int64{1, 2}
-		response := []byte(`{"count":2,"value":[1,2]}`)
-
-		var handleSessionRequest http.HandlerFunc
-		server := newActionsServer(t, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if strings.Contains(r.URL.Path, "acquirejobs") {
-				assert.Equal(t, http.MethodPost, r.Method)
-				assert.Contains(t, r.URL.Path, "acquirejobs")
-				assert.True(t, strings.HasPrefix(r.Header.Get("Authorization"), "Bearer"), "expected Bearer authorization header")
-
-				var gotIDs []int64
-				err := json.NewDecoder(r.Body).Decode(&gotIDs)
-				require.NoError(t, err)
-				assert.Equal(t, requestIDs, gotIDs)
-
-				w.Header().Set("Content-Type", "application/json")
-				w.WriteHeader(http.StatusOK)
-				w.Write(response)
-				return
-			}
-			if strings.HasSuffix(r.URL.Path, "sessions") {
-				handleSessionRequest(w, r)
-				return
-			}
-			if strings.Contains(r.URL.Path, "/sessions/") {
-				handleSessionRequest(w, r)
-				return
-			}
-		}))
-		handleSessionRequest = newTestSessionRequestHandler(t, server.testRunnerScaleSetSession())
-
-		client, err := newClient(
-			testSystemInfo,
-			server.configURLForOrg("my-org"),
-			auth,
-		)
-		require.NoError(t, err)
-
-		sessionClient, err := client.MessageSessionClient(ctx, 1, "my-org")
-		require.NoError(t, err)
-
-		got, err := sessionClient.AcquireJobs(ctx, requestIDs)
-		require.NoError(t, err)
-		assert.Equal(t, want, got)
-	})
-
-	t.Run("Message token expired", func(t *testing.T) {
-		var handleSessionRequest http.HandlerFunc
-		server := newActionsServer(t, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if strings.Contains(r.URL.Path, "acquirejobs") {
-				w.WriteHeader(http.StatusUnauthorized)
-				return
-			}
-			// create session
-			if strings.HasSuffix(r.URL.Path, "sessions") {
-				handleSessionRequest(w, r)
-				return
-			}
-			// refresh
-			if strings.Contains(r.URL.Path, "/sessions/") {
-				handleSessionRequest(w, r)
-				return
-			}
-			w.WriteHeader(http.StatusUnauthorized)
-		}))
-		handleSessionRequest = newTestSessionRequestHandler(t, server.testRunnerScaleSetSession())
-
-		client, err := newClient(
-			testSystemInfo,
-			server.configURLForOrg("my-org"),
-			auth,
-		)
-		require.NoError(t, err)
-
-		sessionClient, err := client.MessageSessionClient(ctx, 1, "my-org")
-		require.NoError(t, err)
-
-		got, err := sessionClient.AcquireJobs(ctx, []int64{1})
-		assert.Nil(t, got)
-		assert.ErrorIs(t, err, MessageQueueTokenExpiredError, "expected error to be MessageQueueTokenExpiredError but got: %v", err)
-	})
-
-	t.Run("Message token refreshed", func(t *testing.T) {
-		want := []int64{1, 2}
-		afterRefreshResponse := []byte(`{"count":2,"value":[1,2]}`)
-
-		var handleSessionRequest http.HandlerFunc
-		type state int
-		const (
-			createSession state = iota
-			firstAcquire
-			refreshToken
-			secondAcquire
-		)
-		currentState := createSession
-		server := newActionsServer(t, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if strings.Contains(r.URL.Path, "acquirejobs") {
-				if currentState == firstAcquire {
-					w.WriteHeader(http.StatusUnauthorized)
-					currentState = refreshToken
-					return
-				}
-				require.Equal(t, secondAcquire, currentState)
-				w.Header().Set("Content-Type", "application/json")
-				w.Write(afterRefreshResponse)
-				return
-			}
-			// create session
-			if strings.HasSuffix(r.URL.Path, "sessions") {
-				require.Equal(t, createSession, currentState)
-				handleSessionRequest(w, r)
-				currentState = firstAcquire
-				return
-			}
-			// refresh
-			if strings.Contains(r.URL.Path, "/sessions/") {
-				require.Equal(t, refreshToken, currentState)
-				handleSessionRequest(w, r)
-				currentState = secondAcquire
-				return
-			}
-		}))
-		handleSessionRequest = newTestSessionRequestHandler(t, server.testRunnerScaleSetSession())
-
-		client, err := newClient(
-			testSystemInfo,
-			server.configURLForOrg("my-org"),
-			auth,
-		)
-		require.NoError(t, err)
-
-		sessionClient, err := client.MessageSessionClient(ctx, 1, "my-org")
-		require.NoError(t, err)
-
-		got, err := sessionClient.AcquireJobs(ctx, []int64{1, 2})
-		require.NoError(t, err)
-		assert.Equal(t, want, got)
-	})
-
-	t.Run("Server error", func(t *testing.T) {
-		var handleSessionRequest http.HandlerFunc
-		server := newActionsServer(t, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if strings.Contains(r.URL.Path, "acquirejobs") {
-				w.WriteHeader(http.StatusInternalServerError)
-				return
-			}
-			if strings.HasSuffix(r.URL.Path, "sessions") {
-				handleSessionRequest(w, r)
-				return
-			}
-			if strings.Contains(r.URL.Path, "/sessions/") {
-				handleSessionRequest(w, r)
-				return
-			}
-		}))
-		handleSessionRequest = newTestSessionRequestHandler(t, server.testRunnerScaleSetSession())
-
-		retryMax := 1
-		client, err := newClient(
-			testSystemInfo,
-			server.configURLForOrg("my-org"),
-			auth,
-			WithRetryMax(retryMax),
-			WithRetryWaitMax(1*time.Nanosecond),
-		)
-		require.NoError(t, err)
-
-		sessionClient, err := client.MessageSessionClient(
-			ctx,
-			1,
-			"my-org",
-			WithRetryMax(retryMax),
-			WithRetryWaitMax(1*time.Nanosecond),
-		)
-		require.NoError(t, err)
-
-		got, err := sessionClient.AcquireJobs(ctx, []int64{1})
-		assert.Nil(t, got)
-		assert.NotNil(t, err)
-	})
-
-	t.Run("Empty request IDs", func(t *testing.T) {
-		response := []byte(`{"count":0,"value":[]}`)
-
-		var handleSessionRequest http.HandlerFunc
-		server := newActionsServer(t, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if strings.Contains(r.URL.Path, "acquirejobs") {
-				assert.Equal(t, http.MethodPost, r.Method)
-				w.Header().Set("Content-Type", "application/json")
-				w.WriteHeader(http.StatusOK)
-				w.Write(response)
-				return
-			}
-			if strings.HasSuffix(r.URL.Path, "sessions") {
-				handleSessionRequest(w, r)
-				return
-			}
-			if strings.Contains(r.URL.Path, "/sessions/") {
-				handleSessionRequest(w, r)
-				return
-			}
-		}))
-		handleSessionRequest = newTestSessionRequestHandler(t, server.testRunnerScaleSetSession())
-
-		client, err := newClient(
-			testSystemInfo,
-			server.configURLForOrg("my-org"),
-			auth,
-		)
-		require.NoError(t, err)
-
-		sessionClient, err := client.MessageSessionClient(ctx, 1, "my-org")
-		require.NoError(t, err)
-
-		got, err := sessionClient.AcquireJobs(ctx, []int64{})
-		require.NoError(t, err)
-		assert.Empty(t, got)
-	})
-}

types.go

@@ -12,17 +12,11 @@ type MessageType string
 
 // message types
 const (
-	MessageTypeJobAvailable MessageType = "JobAvailable"
 	MessageTypeJobAssigned  MessageType = "JobAssigned"
 	MessageTypeJobStarted   MessageType = "JobStarted"
 	MessageTypeJobCompleted MessageType = "JobCompleted"
 )
 
-type JobAvailable struct {
-	AcquireJobURL string `json:"acquireJobUrl"`
-	JobMessageBase
-}
-
 type JobAssigned struct {
 	JobMessageBase
 }
@@ -105,7 +99,6 @@ type runnerScaleSetMessageResponse struct {
 type RunnerScaleSetMessage struct {
 	MessageID            int
 	Statistics           *RunnerScaleSetStatistic
-	JobAvailableMessages []*JobAvailable
 	JobAssignedMessages  []*JobAssigned
 	JobStartedMessages   []*JobStarted
 	JobCompletedMessages []*JobCompleted
@@ -116,11 +109,6 @@ type runnerScaleSetsResponse struct {
 	RunnerScaleSets []RunnerScaleSet `json:"value"`
 }
 
-type acquireJobsResponse struct {
-	Count int     `json:"count"`
-	Value []int64 `json:"value"`
-}
-
 type RunnerScaleSetSession struct {
 	SessionID               uuid.UUID                `json:"sessionId,omitempty"`
 	OwnerName               string                   `json:"ownerName,omitempty"`