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main.go
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main.go
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// Copyright 2017 Northern.tech AS
//
// 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 main
import (
"context"
"fmt"
"os"
"github.com/mendersoftware/go-lib-micro/log"
mstore "github.com/mendersoftware/go-lib-micro/store"
"github.com/urfave/cli"
"github.com/mendersoftware/deployments/config"
"github.com/mendersoftware/deployments/migrations"
)
func main() {
doMain(os.Args)
}
func doMain(args []string) {
var configPath string
app := cli.NewApp()
app.Usage = "Deployments Service"
app.Version = CreateVersionString()
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "config",
Usage: "Configuration `FILE`. Supports JSON, TOML, YAML and HCL formatted configs.",
Destination: &configPath,
},
}
app.Commands = []cli.Command{
{
Name: "server",
Usage: "Run the service as a server",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "automigrate",
Usage: "Run database migrations before starting.",
},
},
Action: cmdServer,
},
{
Name: "migrate",
Usage: "Run migrations and exit",
Flags: []cli.Flag{
cli.StringFlag{
Name: "tenant",
Usage: "Tenant ID (optional).",
},
},
Action: cmdMigrate,
},
}
app.Action = cmdServer
app.Before = func(args *cli.Context) error {
err := config.FromConfigFile(configPath, configDefaults)
if err != nil {
return cli.NewExitError(
fmt.Sprintf("error loading configuration: %s", err),
1)
}
return nil
}
app.Run(args)
}
func cmdServer(args *cli.Context) error {
devSetup := args.GlobalBool("dev")
l := log.New(log.Ctx{})
if devSetup {
l.Infof("setting up development configuration")
config.Config.Set(SettingMiddleware, EnvDev)
}
l.Printf("Deployments Service, version %s starting up",
CreateVersionString())
dbSession, err := NewMongoSession(config.Config)
if err != nil {
return cli.NewExitError(
fmt.Sprintf("failed to connect to db: %v", err),
3)
}
if args.Bool("automigrate") {
err = migrations.Migrate(context.Background(), migrations.DbVersion, dbSession, true)
if err != nil {
return cli.NewExitError(
fmt.Sprintf("failed to run migrations: %v", err),
3)
}
}
dbSession.Close()
l.Printf("Deployments Service, version %s starting up",
CreateVersionString())
err = RunServer(config.Config)
if err != nil {
return cli.NewExitError(err.Error(), 4)
}
return nil
}
func cmdMigrate(args *cli.Context) error {
tenant := args.String("tenant")
db := mstore.DbNameForTenant(tenant, migrations.DbName)
dbSession, err := NewMongoSession(config.Config)
if err != nil {
return cli.NewExitError(
fmt.Sprintf("failed to connect to db: %v", err),
3)
}
err = migrations.MigrateSingle(context.Background(), db, migrations.DbVersion, dbSession, true)
if err != nil {
return cli.NewExitError(
fmt.Sprintf("failed to run migrations: %v", err),
3)
}
dbSession.Close()
return nil
}