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single.go
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single.go
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package single
import (
"context"
"fmt"
"path/filepath"
"github.com/ServiceWeaver/weaver/internal/must"
"github.com/ServiceWeaver/weaver/internal/status"
itool "github.com/ServiceWeaver/weaver/internal/tool"
"github.com/ServiceWeaver/weaver/runtime"
"github.com/ServiceWeaver/weaver/runtime/tool"
)
var (
// The directories and files where the single process deployer stores data.
dataDir = filepath.Join(must.Must(runtime.DataDir()), "single")
RegistryDir = filepath.Join(dataDir, "registry")
PerfettoFile = filepath.Join(dataDir, "traces.DB")
dashboardSpec = &status.DashboardSpec{
Tool: "weaver single",
PerfettoFile: PerfettoFile,
Registry: defaultRegistry,
Commands: func(deploymentId string) []status.Command {
return []status.Command{
{Label: "status", Command: "weaver single status"},
{Label: "profile", Command: fmt.Sprintf("weaver single profile --duration=30s %s", deploymentId)},
}
},
}
purgeSpec = &tool.PurgeSpec{
Tool: "weaver single",
Kill: "weaver single (dashboard|profile)",
Paths: []string{dataDir},
}
Commands = map[string]*tool.Command{
"deploy": &deployCmd,
"status": status.StatusCommand("weaver single", defaultRegistry),
"dashboard": status.DashboardCommand(dashboardSpec),
"metrics": status.MetricsCommand("weaver single", defaultRegistry),
"profile": status.ProfileCommand("weaver single", defaultRegistry),
"purge": tool.PurgeCmd(purgeSpec),
"version": itool.VersionCmd("weaver single"),
}
)
func defaultRegistry(ctx context.Context) (*status.Registry, error) {
return status.NewRegistry(ctx, RegistryDir)
}