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Let the build modules follow their capacity on the bus, so a node raised from capacity 0 starts pulling (issue 1887)

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g14's Go builder sat idle at capacity 2 because nothing woke its parked
puller. mesh-build-go, mesh-build-node and mesh-build-image now pin mesh-sdk
b9911dc1, whose puller watches the config value capacity as mesh-config
resolved it and wakes on each change, and hand it that watch.
This commit is contained in:
jschoubben
2026-10-25 17:28:00 +01:00
parent a85d903741
commit 3138570c6b
9 changed files with 24 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/mesh-build-go/cmd/mesh-build-go/asks.go
+5 -1
View File
@@ -80,8 +80,12 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
source = buildstep.SeatAsks{Language: delivery.AskGo}
}
capacity := m.Capacity
// The capacity's own change wakes the puller (issue 1887): the runtime's watch of the config value as mesh-config
// resolved it; the settings file is read only when that watch cannot start. A test's Capacity is its own.
var watch func(string, func(stdio.ProvisionChange) error) error
if capacity == nil {
capacity = buildstep.NodeCapacity(m.Settings, buildstep.DefaultCapacities, m.Node, m.Say)
watch = buildstep.WatchConfigServed
}
ask := m.askSteps(steps)
var load func(string) ([]byte, error)
@@ -92,7 +96,7 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
}
}
return &buildstep.Puller{Source: source, Language: delivery.AskGo, Node: m.Node, Put: m.Steps, Load: load,
Capacity: capacity, Logf: m.Say,
Capacity: capacity, WatchConfig: watch, Logf: m.Say,
Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
if err := m.Check(ctx); err != nil {
return nil, err
modules/mesh-build-go/go.mod
+1 -1
View File
@@ -3,7 +3,7 @@ module meshbuildgo
go 1.26.0
require (
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261024125710-bfc3883af980
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135
github.com/distribution/distribution/v3 v3.1.2
github.com/nats-io/nats-server/v2 v2.11.17
github.com/nats-io/nats.go v1.54.0
modules/mesh-build-go/go.sum
+2 -2
View File
@@ -1,5 +1,5 @@
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261024125710-bfc3883af980 h1:ZEEeYibEPD1rngOAqbODzRY5rUStGC46OpyQwtNCYbs=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261024125710-bfc3883af980/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135 h1:1bd54/hyCGgy1vUv3B2jV9HFzk3h7so15lIYgd9EzSE=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
github.com/alicebob/miniredis/v2 v2.35.0 h1:QwLphYqCEAo1eu1TqPRN2jgVMPBweeQcR21jeqDCONI=
github.com/alicebob/miniredis/v2 v2.35.0/go.mod h1:TcL7YfarKPGDAthEtl5NBeHZfeUQj6OXMm/+iu5cLMM=
github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op h1:Z/MZK75wC/NSrkgqeNIa7jexam9uWzhLmFTSCPI/kn0=
modules/mesh-build-image/cmd/mesh-build-image/asks.go
+5 -1
View File
@@ -37,8 +37,12 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
source = buildstep.SeatAsks{Language: delivery.AskImage}
}
capacity := m.Capacity
// The capacity's own change wakes the puller (issue 1887): the runtime's watch of the config value as mesh-config
// resolved it; the settings file is read only when that watch cannot start. A test's Capacity is its own.
var watch func(string, func(stdio.ProvisionChange) error) error
if capacity == nil {
capacity = buildstep.NodeCapacity(m.Settings, buildstep.DefaultCapacities, m.Node, m.Say)
watch = buildstep.WatchConfigServed
}
ask := m.askSteps(steps)
var load func(string) ([]byte, error)
@@ -46,7 +50,7 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
load = func(key string) ([]byte, error) { return m.ReadSteps.Get(key) }
}
return &buildstep.Puller{Source: source, Language: delivery.AskImage, Node: m.Node, Put: m.Steps, Load: load,
Capacity: capacity, Logf: m.Say,
Capacity: capacity, WatchConfig: watch, Logf: m.Say,
Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
if err := m.Check(ctx); err != nil {
return nil, err
modules/mesh-build-image/go.mod
+1 -1
View File
@@ -3,7 +3,7 @@ module meshbuildimage
go 1.26.0
require (
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135
github.com/nats-io/nats-server/v2 v2.11.17
github.com/nats-io/nats.go v1.54.0
)
modules/mesh-build-image/go.sum
+2 -2
View File
@@ -1,5 +1,5 @@
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93 h1:FAiFY2KBKEoZSH49OZTt7/zRBIQxyl5g/KhYrpggbN4=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135 h1:1bd54/hyCGgy1vUv3B2jV9HFzk3h7so15lIYgd9EzSE=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op h1:Z/MZK75wC/NSrkgqeNIa7jexam9uWzhLmFTSCPI/kn0=
github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op/go.mod h1:FQyySiasQQM8735Ddel3MRojmy4dA1IqCeyJ5jmPMbI=
github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=
modules/mesh-build-node/cmd/mesh-build-node/asks.go
+5 -1
View File
@@ -45,8 +45,12 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
source = buildstep.SeatAsks{Language: delivery.AskNode}
}
capacity := m.Capacity
// The capacity's own change wakes the puller (issue 1887): the runtime's watch of the config value as mesh-config
// resolved it; the settings file is read only when that watch cannot start. A test's Capacity is its own.
var watch func(string, func(stdio.ProvisionChange) error) error
if capacity == nil {
capacity = buildstep.NodeCapacity(m.Settings, buildstep.DefaultCapacities, m.Node, m.Say)
watch = buildstep.WatchConfigServed
}
ask := m.askSteps(steps)
var load func(string) ([]byte, error)
@@ -54,7 +58,7 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
load = func(key string) ([]byte, error) { return m.ReadSteps.Get(key) }
}
return &buildstep.Puller{Source: source, Language: delivery.AskNode, Node: m.Node, Put: m.Steps, Load: load,
Capacity: capacity, Logf: m.Say,
Capacity: capacity, WatchConfig: watch, Logf: m.Say,
Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
if err := m.Prepare(ctx); err != nil {
return nil, err
modules/mesh-build-node/go.mod
+1 -1
View File
@@ -3,7 +3,7 @@ module meshbuildnode
go 1.26.0
require (
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135
github.com/distribution/distribution/v3 v3.1.2
github.com/nats-io/nats.go v1.54.0
)
modules/mesh-build-node/go.sum
+2 -2
View File
@@ -1,5 +1,5 @@
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93 h1:FAiFY2KBKEoZSH49OZTt7/zRBIQxyl5g/KhYrpggbN4=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261023213200-403a5d72ab93/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135 h1:1bd54/hyCGgy1vUv3B2jV9HFzk3h7so15lIYgd9EzSE=
git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261025162610-b9911dc1c135/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
github.com/alicebob/miniredis/v2 v2.35.0 h1:QwLphYqCEAo1eu1TqPRN2jgVMPBweeQcR21jeqDCONI=
github.com/alicebob/miniredis/v2 v2.35.0/go.mod h1:TcL7YfarKPGDAthEtl5NBeHZfeUQj6OXMm/+iu5cLMM=
github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op h1:Z/MZK75wC/NSrkgqeNIa7jexam9uWzhLmFTSCPI/kn0=