This repository has been archived by the owner on Jan 21, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 9
/
runner.go
145 lines (120 loc) · 3.33 KB
/
runner.go
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
package runner
import (
"net"
"os"
"os/exec"
"path/filepath"
"syscall"
"time"
"code.cloudfoundry.org/garden/client"
"code.cloudfoundry.org/garden/client/connection"
"code.cloudfoundry.org/lager"
"code.cloudfoundry.org/lager/lagertest"
"github.com/tedsuo/ifrit"
"github.com/tedsuo/ifrit/ginkgomon"
)
type Runner struct {
Command *exec.Cmd
network string
addr string
tmpdir string
bin string
containerizerURL string
}
func New(network, addr, tmpdir, bin, containerizerURL string) *Runner {
return &Runner{
network: network,
addr: addr,
tmpdir: tmpdir,
bin: bin, // the path to garden-windows executable
containerizerURL: containerizerURL,
}
}
func (r *Runner) Run(signals <-chan os.Signal, ready chan<- struct{}) error {
logger := lagertest.NewTestLogger("garden-runner")
err := os.MkdirAll(r.tmpdir, 0755)
if err != nil {
return err
}
depotPath := filepath.Join(r.tmpdir, "containers")
overlaysPath := filepath.Join(r.tmpdir, "overlays")
snapshotsPath := filepath.Join(r.tmpdir, "snapshots")
if err := os.MkdirAll(depotPath, 0755); err != nil {
return err
}
if err := os.MkdirAll(snapshotsPath, 0755); err != nil {
return err
}
MustMountTmpfs(overlaysPath)
var gardenArgs []string
gardenArgs = append(gardenArgs, "--listenNetwork", r.network)
gardenArgs = append(gardenArgs, "--listenAddr", r.addr)
gardenArgs = append(gardenArgs, "--containerizerURL", r.containerizerURL)
var signal os.Signal
r.Command = exec.Command(r.bin, gardenArgs...)
process := ifrit.Invoke(&ginkgomon.Runner{
Name: "garden-windows",
Command: r.Command,
AnsiColorCode: "31m",
StartCheck: "garden-windows.started",
StartCheckTimeout: 10 * time.Second,
Cleanup: func() {
if signal == syscall.SIGQUIT {
logger.Info("cleanup-tempdirs")
if err := os.RemoveAll(r.tmpdir); err != nil {
logger.Error("cleanup-tempdirs-failed", err, lager.Data{"tmpdir": r.tmpdir})
} else {
logger.Info("tempdirs-removed")
}
}
},
})
close(ready)
for {
select {
case signal = <-signals:
// SIGQUIT means clean up the containers, the garden process (SIGTERM) and the temporary directories
// SIGKILL, SIGTERM and SIGINT are passed through to the garden process
if signal == syscall.SIGQUIT {
logger.Info("received-signal SIGQUIT")
if err := r.destroyContainers(); err != nil {
logger.Error("destroy-containers-failed", err)
return err
}
logger.Info("destroyed-containers")
process.Signal(syscall.SIGTERM)
} else {
logger.Info("received-signal", lager.Data{"signal": signal})
process.Signal(signal)
}
case waitErr := <-process.Wait():
logger.Info("process-exited")
return waitErr
}
}
}
func (r *Runner) TryDial() error {
conn, dialErr := net.DialTimeout(r.network, r.addr, 1*time.Second)
if dialErr == nil {
conn.Close()
return nil
}
return dialErr
}
func (r *Runner) NewClient() client.Client {
return client.New(connection.New(r.network, r.addr))
}
func (r *Runner) destroyContainers() error {
client := r.NewClient()
containers, err := client.Containers(nil)
if err != nil {
return err
}
for _, container := range containers {
err := client.Destroy(container.Handle())
if err != nil {
return err
}
}
return nil
}