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
|
package io.crashbox.ci
import java.io.{File, OutputStream}
import java.util.UUID
import scala.collection.JavaConverters._
import scala.concurrent.Future
import scala.concurrent.duration._
import akka.actor.ActorSystem
import com.spotify.docker.client.DefaultDockerClient
import com.spotify.docker.client.DockerClient.{
AttachParameter,
ListContainersParam
}
import scala.util.Random
import com.spotify.docker.client.LogStream
import com.spotify.docker.client.exceptions.ContainerNotFoundException
import com.spotify.docker.client.messages.{ContainerConfig, HostConfig}
import com.spotify.docker.client.messages.HostConfig.Bind
object DockerExecutor {
def containerUser = "crashbox"
def containerWorkDirectory = "/home/crashbox"
def containerKillTimeout = 5.seconds
}
class DockerExecutor(uri: String = "unix:///run/docker.sock")(
implicit system: ActorSystem) extends Executor[DockerEnvironment, DockerExecutionId] {
import DockerExecutor._
import system.log
val dockerClient = {
val c = DefaultDockerClient.builder().uri(uri).build()
system.registerOnTermination {
c.close()
}
c
}
private val label = "crashbox-executor" -> UUID.randomUUID().toString
def start(
env: DockerEnvironment,
script: String,
buildDirectory: File,
out: OutputStream
): Future[DockerExecutionId] =
Future {
val volume = Bind
.builder()
.from(buildDirectory.getAbsolutePath)
.to(containerWorkDirectory)
.build()
val hostConfig = HostConfig.builder().binds(volume).build()
val containerConfig = ContainerConfig
.builder()
.labels(Map(label).asJava)
.hostConfig(hostConfig)
.tty(true) // combine stdout and stderr into stdout
.image(env.image)
.user(containerUser)
.workingDir(containerWorkDirectory)
.entrypoint("/bin/sh", "-c")
.cmd(script)
.build()
val container = dockerClient.createContainer(containerConfig).id
log.debug(s"Starting container $container")
dockerClient.startContainer(container)
log.debug(s"Attaching log stream of container $container")
system.dispatcher execute new Runnable {
override def run() = {
var stream: LogStream = null
try {
stream = dockerClient.attachContainer(
container,
AttachParameter.LOGS,
AttachParameter.STDOUT,
AttachParameter.STREAM
)
stream.attach(out, null, true)
} finally {
if (stream != null) stream.close()
}
}
}
DockerExecutionId(container)
}(system.dispatcher)
def result(id: DockerExecutionId): Future[Int] =
Future {
log.debug(s"Waiting for container $id to exit")
val res: Int = dockerClient.waitContainer(id.id).statusCode()
stop(id)
res
}(system.dispatcher)
def stop(id: DockerExecutionId): Unit = {
try {
log.debug(s"Stopping container $id")
dockerClient.stopContainer(id.id,
containerKillTimeout.toUnit(SECONDS).toInt)
log.debug(s"Removing container $id")
dockerClient.removeContainer(id.id)
} catch {
case _: ContainerNotFoundException => // build already cancelled
}
}
def clean(): Boolean = {
val stale = dockerClient
.listContainers(
ListContainersParam.withLabel(label._1, label._2)
)
.asScala
stale.isEmpty || {
stale.foreach { container =>
log.warning(s"Removing stale container ${container.id}")
dockerClient.killContainer(container.id)
dockerClient.removeContainer(container.id)
}
false
}
}
}
|