open-nomad/command/executor_plugin.go

67 lines
1.4 KiB
Go

package command
import (
"encoding/json"
"os"
"strings"
hclog "github.com/hashicorp/go-hclog"
log "github.com/hashicorp/go-hclog"
plugin "github.com/hashicorp/go-plugin"
"github.com/hashicorp/nomad/drivers/shared/executor"
"github.com/hashicorp/nomad/plugins/base"
)
type ExecutorPluginCommand struct {
Meta
}
func (e *ExecutorPluginCommand) Help() string {
helpText := `
This is a command used by Nomad internally to launch an executor plugin"
`
return strings.TrimSpace(helpText)
}
func (e *ExecutorPluginCommand) Synopsis() string {
return "internal - launch an executor plugin"
}
func (e *ExecutorPluginCommand) Run(args []string) int {
if len(args) != 1 {
e.Ui.Error("json configuration not provided")
return 1
}
config := args[0]
var executorConfig executor.ExecutorConfig
if err := json.Unmarshal([]byte(config), &executorConfig); err != nil {
return 1
}
f, err := os.OpenFile(executorConfig.LogFile, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
if err != nil {
e.Ui.Error(err.Error())
return 1
}
// Create the logger
logger := log.New(&log.LoggerOptions{
Level: hclog.LevelFromString(executorConfig.LogLevel),
JSONFormat: true,
Output: f,
})
plugin.Serve(&plugin.ServeConfig{
HandshakeConfig: base.Handshake,
Plugins: executor.GetPluginMap(
logger,
executorConfig.FSIsolation,
),
GRPCServer: plugin.DefaultGRPCServer,
Logger: logger,
})
return 0
}