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Asim Aslam c7657f73f4
goreleaser / goreleaser (push) Has been cancelled
Refactor agent plan storage, update docs, and release v6 (#2977)
* test(harness): read agent plan from the scoped store

The store-scoping change moved an agent's plan from the default table
key agent/{name}/plan to its own table (database "agent", table {name},
key "plan"). The plan-delegate harness tests still read the old key and
failed with 'not found'; read through store.Scope(mem, "agent", name)
like the agent does.

* docs: orient agents-first across README, landing, and docs overview

Lead with agents (then services and flows), surface MCP + A2A as the
interop story, and frame agents as services. Landing hero and feature
grid reordered agents-first with an A2A gateway card.

* v6: module path go-micro.dev/v6, TLS secure by default, NewService

Cut v6. Three breaking changes, bundled so the major bump is paid once:

- Module path go-micro.dev/v5 -> go-micro.dev/v6 across all imports + go.mod.
- TLS verification on by default (was off). MICRO_TLS_SECURE removed;
  MICRO_TLS_INSECURE=true opts out for self-signed/dev.
- micro.NewService(name, opts...) is the canonical service constructor,
  symmetric with NewAgent/NewFlow; micro.New kept as a deprecated alias;
  the old name-less NewService(opts...) removed. Generators emit NewService.

Also ports the JWT auth token provider in-module (go-micro.dev/v6/auth/jwt/token
on golang-jwt/jwt/v5), dropping the v5-pinned github.com/micro/plugins/v5/auth/jwt
and the deprecated dgrijalva/jwt-go.

Docs/README/landing updated to v6 and @latest; v5->v6 migration guide added;
CHANGELOG cut as [6.0.0]. Blog posts left at their historical versions.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-18 11:55:35 +01:00

83 lines
1.8 KiB
Go

// Package trace provides an interface for distributed tracing
package trace
import (
"context"
"time"
"go-micro.dev/v6/metadata"
"go-micro.dev/v6/transport/headers"
)
var (
// DefaultTracer is the default tracer.
DefaultTracer = NewTracer()
)
// Tracer is an interface for distributed tracing.
type Tracer interface {
// Start a trace
Start(ctx context.Context, name string) (context.Context, *Span)
// Finish the trace
Finish(*Span) error
// Read the traces
Read(...ReadOption) ([]*Span, error)
}
// SpanType describe the nature of the trace span.
type SpanType int
const (
// SpanTypeRequestInbound is a span created when serving a request.
SpanTypeRequestInbound SpanType = iota
// SpanTypeRequestOutbound is a span created when making a service call.
SpanTypeRequestOutbound
)
// Span is used to record an entry.
type Span struct {
// Start time
Started time.Time
// associated data
Metadata map[string]string
// Id of the trace
Trace string
// name of the span
Name string
// id of the span
Id string
// parent span id
Parent string
// Duration in nano seconds
Duration time.Duration
// Type
Type SpanType
}
// FromContext returns a span from context.
func FromContext(ctx context.Context) (traceID string, parentSpanID string, isFound bool) {
traceID, traceOk := metadata.Get(ctx, headers.TraceIDKey)
microID, microOk := metadata.Get(ctx, headers.ID)
if !traceOk && !microOk {
isFound = false
return
}
if !traceOk {
traceID = microID
}
parentSpanID, ok := metadata.Get(ctx, headers.SpanID)
return traceID, parentSpanID, ok
}
// ToContext saves the trace and span ids in the context.
func ToContext(ctx context.Context, traceID, parentSpanID string) context.Context {
return metadata.MergeContext(ctx, map[string]string{
headers.TraceIDKey: traceID,
headers.SpanID: parentSpanID,
}, true)
}