/
run_linux_test.go
130 lines (105 loc) · 4.67 KB
/
run_linux_test.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
package container // import "github.com/docker/docker/integration/container"
import (
"context"
"strings"
"testing"
"time"
containertypes "github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/versions"
"github.com/docker/docker/integration/internal/container"
net "github.com/docker/docker/integration/internal/network"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
"gotest.tools/v3/poll"
"gotest.tools/v3/skip"
)
func TestNISDomainname(t *testing.T) {
// Older versions of the daemon would concatenate hostname and domainname,
// so hostname "foobar" and domainname "baz.cyphar.com" would produce
// `foobar.baz.cyphar.com` as hostname.
skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.40"), "skip test from new feature")
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
// Rootless supports custom Hostname but doesn't support custom Domainname
// OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \
// "write sysctl key kernel.domainname: open /proc/sys/kernel/domainname: permission denied\"": unknown.
skip.If(t, testEnv.IsRootless, "rootless mode doesn't support setting Domainname (TODO: https://github.com/moby/moby/issues/40632)")
defer setupTest(t)()
client := testEnv.APIClient()
ctx := context.Background()
const (
hostname = "foobar"
domainname = "baz.cyphar.com"
)
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
c.Config.Hostname = hostname
c.Config.Domainname = domainname
})
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
inspect, err := client.ContainerInspect(ctx, cID)
assert.NilError(t, err)
assert.Check(t, is.Equal(hostname, inspect.Config.Hostname))
assert.Check(t, is.Equal(domainname, inspect.Config.Domainname))
// Check hostname.
res, err := container.Exec(ctx, client, cID,
[]string{"cat", "/proc/sys/kernel/hostname"})
assert.NilError(t, err)
assert.Assert(t, is.Len(res.Stderr(), 0))
assert.Equal(t, 0, res.ExitCode)
assert.Check(t, is.Equal(hostname, strings.TrimSpace(res.Stdout())))
// Check domainname.
res, err = container.Exec(ctx, client, cID,
[]string{"cat", "/proc/sys/kernel/domainname"})
assert.NilError(t, err)
assert.Assert(t, is.Len(res.Stderr(), 0))
assert.Equal(t, 0, res.ExitCode)
assert.Check(t, is.Equal(domainname, strings.TrimSpace(res.Stdout())))
}
func TestHostnameDnsResolution(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
defer setupTest(t)()
client := testEnv.APIClient()
ctx := context.Background()
const (
hostname = "foobar"
)
// using user defined network as we want to use internal DNS
netName := "foobar-net"
net.CreateNoError(context.Background(), t, client, netName, net.WithDriver("bridge"))
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
c.Config.Hostname = hostname
c.HostConfig.NetworkMode = containertypes.NetworkMode(netName)
})
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
inspect, err := client.ContainerInspect(ctx, cID)
assert.NilError(t, err)
assert.Check(t, is.Equal(hostname, inspect.Config.Hostname))
// Clear hosts file so ping will use DNS for hostname resolution
res, err := container.Exec(ctx, client, cID,
[]string{"sh", "-c", "echo 127.0.0.1 localhost | tee /etc/hosts && ping -c 1 foobar"})
assert.NilError(t, err)
assert.Check(t, is.Equal("", res.Stderr()))
assert.Equal(t, 0, res.ExitCode)
}
func TestUnprivilegedPortsAndPing(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
skip.If(t, testEnv.IsRootless, "rootless mode doesn't support setting net.ipv4.ping_group_range and net.ipv4.ip_unprivileged_port_start")
defer setupTest(t)()
client := testEnv.APIClient()
ctx := context.Background()
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
c.Config.User = "1000:1000"
})
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
// Check net.ipv4.ping_group_range.
res, err := container.Exec(ctx, client, cID, []string{"cat", "/proc/sys/net/ipv4/ping_group_range"})
assert.NilError(t, err)
assert.Assert(t, is.Len(res.Stderr(), 0))
assert.Equal(t, 0, res.ExitCode)
assert.Equal(t, `0 2147483647`, strings.TrimSpace(res.Stdout()))
// Check net.ipv4.ip_unprivileged_port_start.
res, err = container.Exec(ctx, client, cID, []string{"cat", "/proc/sys/net/ipv4/ip_unprivileged_port_start"})
assert.NilError(t, err)
assert.Assert(t, is.Len(res.Stderr(), 0))
assert.Equal(t, 0, res.ExitCode)
assert.Equal(t, "0", strings.TrimSpace(res.Stdout()))
}