79 lines
1.8 KiB
Go
79 lines
1.8 KiB
Go
package worker
|
|
|
|
import (
|
|
"context"
|
|
"crypto/rand"
|
|
"fmt"
|
|
|
|
"github.com/hashicorp/go-hclog"
|
|
"github.com/hashicorp/vault/sdk/helper/mlock"
|
|
)
|
|
|
|
type Worker struct {
|
|
conf *Config
|
|
logger hclog.Logger
|
|
|
|
baseContext context.Context
|
|
baseCancel context.CancelFunc
|
|
}
|
|
|
|
func New(conf *Config) (*Worker, error) {
|
|
c := &Worker{
|
|
conf: conf,
|
|
logger: conf.Logger,
|
|
}
|
|
|
|
if c.logger == nil {
|
|
c.logger = hclog.New(&hclog.LoggerOptions{
|
|
Level: hclog.Trace,
|
|
})
|
|
conf.AllLoggers = append(conf.AllLoggers, c.logger)
|
|
}
|
|
|
|
if conf.SecureRandomReader == nil {
|
|
conf.SecureRandomReader = rand.Reader
|
|
}
|
|
|
|
if !conf.RawConfig.DisableMlock {
|
|
// Ensure our memory usage is locked into physical RAM
|
|
if err := mlock.LockMemory(); err != nil {
|
|
return nil, fmt.Errorf(
|
|
"Failed to lock memory: %v\n\n"+
|
|
"This usually means that the mlock syscall is not available.\n"+
|
|
"Watchtower uses mlock to prevent memory from being swapped to\n"+
|
|
"disk. This requires root privileges as well as a machine\n"+
|
|
"that supports mlock. Please enable mlock on your system or\n"+
|
|
"disable Watchtower from using it. To disable Watchtower from using it,\n"+
|
|
"set the `disable_mlock` configuration option in your configuration\n"+
|
|
"file.",
|
|
err)
|
|
}
|
|
}
|
|
|
|
c.logger = c.logger.Named("worker")
|
|
|
|
c.baseContext, c.baseCancel = context.WithCancel(context.Background())
|
|
|
|
return c, nil
|
|
}
|
|
|
|
func (c *Worker) Start() error {
|
|
if err := c.startListeners(); err != nil {
|
|
return fmt.Errorf("error starting worker listeners: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *Worker) Shutdown() error {
|
|
if err := c.stopListeners(); err != nil {
|
|
return fmt.Errorf("error stopping worker listeners: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *Worker) SetLogLevel(level hclog.Level) {
|
|
for _, logger := range c.conf.AllLoggers {
|
|
logger.SetLevel(level)
|
|
}
|
|
}
|