lib/crunchrun/docker_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package crunchrun
   6
   7 import (
   8         "os/exec"
   9         "time"
  10
  11         dockercontainer "github.com/docker/docker/api/types/container"
  12         . "gopkg.in/check.v1"
  13 )
  14
  15 var _ = Suite(&dockerSuite{})
  16
  17 type dockerSuite struct {
  18         executorSuite
  19 }
  20
  21 func (s *dockerSuite) SetUpSuite(c *C) {
  22         _, err := exec.LookPath("docker")
  23         if err != nil {
  24                 c.Skip("looks like docker is not installed")
  25         }
  26         s.newExecutor = func(c *C) {
  27                 exec.Command("docker", "rm", "zzzzz-zzzzz-zzzzzzzzzzzzzzz").Run()
  28                 var err error
  29                 s.executor, err = newDockerExecutor("zzzzz-zzzzz-zzzzzzzzzzzzzzz", c.Logf, time.Second/2)
  30                 c.Assert(err, IsNil)
  31         }
  32 }
  33
  34 var _ = Suite(&dockerStubSuite{})
  35
  36 // dockerStubSuite tests don't really connect to the docker service,
  37 // so we can run them even if docker is not installed.
  38 type dockerStubSuite struct{}
  39
  40 func (s *dockerStubSuite) TestDockerContainerConfig(c *C) {
  41         e, err := newDockerExecutor("zzzzz-zzzzz-zzzzzzzzzzzzzzz", c.Logf, time.Second/2)
  42         c.Assert(err, IsNil)
  43         cfg, hostCfg := e.config(containerSpec{
  44                 VCPUs:          4,
  45                 RAM:            123123123,
  46                 WorkingDir:     "/WorkingDir",
  47                 Env:            map[string]string{"FOO": "bar"},
  48                 BindMounts:     map[string]bindmount{"/mnt": {HostPath: "/hostpath", ReadOnly: true}},
  49                 EnableNetwork:  false,
  50                 GPUStack:       "cuda",
  51                 GPUDeviceCount: 3,
  52         })
  53         c.Check(cfg.WorkingDir, Equals, "/WorkingDir")
  54         c.Check(cfg.Env, DeepEquals, []string{"FOO=bar"})
  55         c.Check(hostCfg.NetworkMode, Equals, dockercontainer.NetworkMode("none"))
  56         c.Check(hostCfg.Resources.NanoCPUs, Equals, int64(4000000000))
  57         c.Check(hostCfg.Resources.Memory, Equals, int64(123123123))
  58         c.Check(hostCfg.Resources.MemorySwap, Equals, int64(123123123))
  59         c.Check(hostCfg.Resources.KernelMemory, Equals, int64(123123123))
  60         c.Check(hostCfg.Resources.DeviceRequests, DeepEquals, []dockercontainer.DeviceRequest{{
  61                 Driver:       "nvidia",
  62                 Count:        3,
  63                 Capabilities: [][]string{{"gpu", "nvidia", "compute", "utility"}},
  64         }})
  65 }