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root.go
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root.go
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// Copyright 2019 Netflix, Inc.
//
// 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 command
import (
"context"
"fmt"
"os"
"github.com/Netflix/p2plab/downloaders"
"github.com/Netflix/p2plab/downloaders/s3downloader"
"github.com/Netflix/p2plab/labagent"
"github.com/Netflix/p2plab/pkg/cliutil"
"github.com/Netflix/p2plab/providers/terraform"
"github.com/Netflix/p2plab/version"
"github.com/rs/zerolog"
"github.com/urfave/cli"
)
func App(ctx context.Context) *cli.App {
app := cli.NewApp()
app.Name = "labagent"
app.Version = version.Version
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "root",
Usage: "path to state directory",
Value: "./tmp/labagent",
EnvVar: "LABAGENT_ROOT",
},
cli.StringFlag{
Name: "address,a",
Usage: "address for labd's HTTP server",
Value: fmt.Sprintf(":%d", terraform.DefaultAgentPort),
EnvVar: "LABAGENT_ADDRESS",
},
cli.StringFlag{
Name: "app-root",
Usage: "path to labapp's state directory",
Value: "./tmp/labapp",
EnvVar: "LABAGENT_APP_ROOT",
},
cli.StringFlag{
Name: "app-address",
Usage: "address for labapp's HTTP server",
Value: fmt.Sprintf("http://localhost:%d", terraform.DefaultAppPort),
EnvVar: "LABAGENT_APP_ADDRESS",
},
cli.StringFlag{
Name: "log-level,l",
Usage: "set the logging level [debug, info, warn, error, fatal, panic]",
Value: "debug",
EnvVar: "LABAGENT_LOG_LEVEL",
},
cli.StringFlag{
Name: "downloader.s3.region",
Usage: "region for s3 downloader",
EnvVar: "LABAGENT_DOWNLOADER_S3_REGION",
},
}
app.Action = agentAction
// Setup context.
cliutil.AttachAppContext(ctx, app)
return app
}
func agentAction(c *cli.Context) error {
root := c.GlobalString("root")
err := os.MkdirAll(root, 0711)
if err != nil {
return err
}
ctx := cliutil.CommandContext(c)
agent, err := labagent.New(root, c.String("address"), c.String("app-root"), c.String("app-address"), zerolog.Ctx(ctx),
labagent.WithDownloaderSettings(downloaders.DownloaderSettings{
S3: s3downloader.S3DownloaderSettings{
Region: c.String("downloader.s3.region"),
},
}),
)
if err != nil {
return err
}
defer agent.Close()
return agent.Serve(ctx)
}