summaryrefslogtreecommitdiff
path: root/libpod/runtime_migrate.go
blob: 116885d3a7ada72a31ff6ea382383d06a55a7b66 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
package libpod

import (
	"context"
	"fmt"
	"path/filepath"

	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"
)

func (r *Runtime) migrate(ctx context.Context) error {
	runningContainers, err := r.GetRunningContainers()
	if err != nil {
		return err
	}

	allCtrs, err := r.state.AllContainers()
	if err != nil {
		return err
	}

	logrus.Infof("stopping all containers")
	for _, ctr := range runningContainers {
		fmt.Printf("stopped %s\n", ctr.ID())
		if err := ctr.Stop(); err != nil {
			return errors.Wrapf(err, "cannot stop container %s", ctr.ID())
		}
	}

	for _, ctr := range allCtrs {
		oldLocation := filepath.Join(ctr.state.RunDir, "conmon.pid")
		if ctr.config.ConmonPidFile == oldLocation {
			logrus.Infof("changing conmon PID file for %s", ctr.ID())
			ctr.config.ConmonPidFile = filepath.Join(ctr.config.StaticDir, "conmon.pid")
			if err := r.state.RewriteContainerConfig(ctr, ctr.config); err != nil {
				return errors.Wrapf(err, "error rewriting config for container %s", ctr.ID())
			}
		}
	}

	return nil
}