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
|
package util
import (
"fmt"
"io/ioutil"
"path/filepath"
"runtime"
"strconv"
"strings"
"github.com/mndrix/tap-go"
rspec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/runtime-tools/cgroups"
)
const (
// CPUCgroupPrefix is default path prefix where CPU cgroups are created
CPUCgroupPrefix string = "/sys/fs/cgroup/cpu,cpuacct"
)
// ValidateLinuxResourcesCPU validates if Linux.Resources.CPU is set to
// correct values, the same as given values in the config.
func ValidateLinuxResourcesCPU(config *rspec.Spec, t *tap.T, state *rspec.State) error {
cg, err := cgroups.FindCgroup()
t.Ok((err == nil), "find cpu cgroup")
if err != nil {
t.Diagnostic(err.Error())
return nil
}
lcd, err := cg.GetCPUData(state.Pid, config.Linux.CgroupsPath)
t.Ok((err == nil), "get cpu cgroup data")
if err != nil {
t.Diagnostic(err.Error())
return nil
}
if lcd.Shares == nil || config.Linux.Resources.CPU.Shares == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu shares, lcd.Shares == %v, config.Linux.Resources.CPU.Shares == %v", lcd.Shares, config.Linux.Resources.CPU.Shares))
return nil
}
t.Ok(*lcd.Shares == *config.Linux.Resources.CPU.Shares, "cpu shares is set correctly")
t.Diagnosticf("expect: %d, actual: %d", *config.Linux.Resources.CPU.Shares, *lcd.Shares)
if lcd.Period == nil || config.Linux.Resources.CPU.Period == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu period, lcd.Period == %v, config.Linux.Resources.CPU.Period == %v", lcd.Period, config.Linux.Resources.CPU.Period))
return nil
}
t.Ok(*lcd.Period == *config.Linux.Resources.CPU.Period, "cpu period is set correctly")
t.Diagnosticf("expect: %d, actual: %d", *config.Linux.Resources.CPU.Period, *lcd.Period)
if lcd.Quota == nil || config.Linux.Resources.CPU.Quota == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu quota, lcd.Quota == %v, config.Linux.Resources.CPU.Quota == %v", lcd.Quota, config.Linux.Resources.CPU.Quota))
return nil
}
t.Ok(*lcd.Quota == *config.Linux.Resources.CPU.Quota, "cpu quota is set correctly")
t.Diagnosticf("expect: %d, actual: %d", *config.Linux.Resources.CPU.Quota, *lcd.Quota)
t.Ok(lcd.Cpus == config.Linux.Resources.CPU.Cpus, "cpu cpus is set correctly")
t.Diagnosticf("expect: %s, actual: %s", config.Linux.Resources.CPU.Cpus, lcd.Cpus)
t.Ok(lcd.Mems == config.Linux.Resources.CPU.Mems, "cpu mems is set correctly")
t.Diagnosticf("expect: %s, actual: %s", config.Linux.Resources.CPU.Mems, lcd.Mems)
return nil
}
// ValidateLinuxResourcesCPUEmpty validates Linux.Resources.CPU is set to
// correct values, when each value are set to the default ones.
func ValidateLinuxResourcesCPUEmpty(config *rspec.Spec, t *tap.T, state *rspec.State) error {
outShares, err := ioutil.ReadFile(filepath.Join(CPUCgroupPrefix, "cpu.shares"))
if err != nil {
return nil
}
sh, _ := strconv.Atoi(strings.TrimSpace(string(outShares)))
defaultShares := uint64(sh)
outPeriod, err := ioutil.ReadFile(filepath.Join(CPUCgroupPrefix, "cpu.cfs_period_us"))
if err != nil {
return nil
}
pe, _ := strconv.Atoi(strings.TrimSpace(string(outPeriod)))
defaultPeriod := uint64(pe)
outQuota, err := ioutil.ReadFile(filepath.Join(CPUCgroupPrefix, "cpu.cfs_quota_us"))
if err != nil {
return nil
}
qu, _ := strconv.Atoi(strings.TrimSpace(string(outQuota)))
defaultQuota := int64(qu)
defaultCpus := fmt.Sprintf("0-%d", runtime.NumCPU()-1)
defaultMems := "0"
cg, err := cgroups.FindCgroup()
t.Ok((err == nil), "find cpu cgroup")
if err != nil {
t.Diagnostic(err.Error())
return nil
}
lcd, err := cg.GetCPUData(state.Pid, config.Linux.CgroupsPath)
t.Ok((err == nil), "get cpu cgroup data")
if err != nil {
t.Diagnostic(err.Error())
return nil
}
if lcd.Shares == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu shares, lcd.Shares == %v", lcd.Shares))
return nil
}
t.Ok(*lcd.Shares == defaultShares, "cpu shares is set correctly")
t.Diagnosticf("expect: %d, actual: %d", defaultShares, *lcd.Shares)
if lcd.Period == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu period, lcd.Period == %v", lcd.Period))
return nil
}
t.Ok(*lcd.Period == defaultPeriod, "cpu period is set correctly")
t.Diagnosticf("expect: %d, actual: %d", defaultPeriod, *lcd.Period)
if lcd.Quota == nil {
t.Diagnostic(fmt.Sprintf("unable to get cpu quota, lcd.Quota == %v", lcd.Quota))
return nil
}
t.Ok(*lcd.Quota == defaultQuota, "cpu quota is set correctly")
t.Diagnosticf("expect: %d, actual: %d", defaultQuota, *lcd.Quota)
t.Ok(lcd.Cpus == defaultCpus, "cpu cpus is set correctly")
t.Diagnosticf("expect: %s, actual: %s", defaultCpus, lcd.Cpus)
t.Ok(lcd.Mems == defaultMems, "cpu mems is set correctly")
t.Diagnosticf("expect: %s, actual: %s", defaultMems, lcd.Mems)
return nil
}
|
