|
2
|
1 using System;
|
|
|
2 using System.Collections.Generic;
|
|
|
3 using System.ComponentModel;
|
|
|
4 using System.Linq;
|
|
|
5 using System.Text;
|
|
|
6 using System.Threading.Tasks;
|
|
|
7
|
|
|
8 namespace ServerMonitorApp
|
|
|
9 {
|
|
|
10 [DisplayName("Disk space check"), Description("Check the remaining free disk space"), DisplayWeight(11)]
|
|
|
11 public class DiskSpaceCheck : SshCheck
|
|
|
12 {
|
|
|
13 public string Device { get; set; }
|
|
|
14
|
|
|
15 public double MinFreeSpace { get; set; }
|
|
|
16
|
|
|
17 public FreeSpaceUnits FreeSpaceUnits { get; set; }
|
|
|
18
|
|
|
19 public DiskSpaceCheck()
|
|
|
20 {
|
|
|
21 Command = "df -P -k {0} | awk 'NR>1' | tr -s ' ' | cut -d ' ' -f 4,5";
|
|
|
22 CheckExitCode = true;
|
|
|
23 ExitCode = 0;
|
|
|
24 }
|
|
|
25
|
|
|
26 protected override string GetCommand()
|
|
|
27 {
|
|
|
28 return string.Format(base.GetCommand(), Device);
|
|
|
29 }
|
|
|
30
|
|
|
31 protected override List<CheckResult> ProcessCommandResult(string output, int exitCode)
|
|
|
32 {
|
|
|
33 List<CheckResult> results = base.ProcessCommandResult(output, exitCode);
|
|
|
34 if (output.Split('\n').Length > 1)
|
|
|
35 {
|
|
|
36 results.Add(Fail("df output was more than one line: " + output));
|
|
|
37 }
|
|
|
38 else
|
|
|
39 {
|
|
|
40
|
|
|
41 string[] tokens = output.Split(new char[0], StringSplitOptions.RemoveEmptyEntries);
|
|
|
42 if (FreeSpaceUnits == FreeSpaceUnits.percent)
|
|
|
43 {
|
|
|
44 if (int.TryParse(tokens[1].Replace("%", ""), out int percent))
|
|
|
45 {
|
|
|
46 percent = 100 - percent;
|
|
|
47 string message = string.Format("Free disk space is {0}%", percent);
|
|
|
48 if (percent < MinFreeSpace)
|
|
|
49 results.Add(Fail(message));
|
|
|
50 else
|
|
|
51 results.Add(Pass(message));
|
|
|
52 }
|
|
|
53 else
|
|
|
54 {
|
|
|
55 results.Add(Fail("Unable to parse df output as integer: " + tokens[1].Replace("%", "")));
|
|
|
56 }
|
|
|
57 }
|
|
|
58 else
|
|
|
59 {
|
|
|
60 if (int.TryParse(tokens[0], out int freeSpace))
|
|
|
61 {
|
|
|
62 freeSpace /= 1024;
|
|
|
63 if (FreeSpaceUnits == FreeSpaceUnits.GB)
|
|
|
64 freeSpace /= 1024;
|
|
|
65 string message = string.Format("Free disk space is {0} {1}", freeSpace, FreeSpaceUnits);
|
|
|
66 if (freeSpace < MinFreeSpace)
|
|
|
67 results.Add(Fail(message));
|
|
|
68 else
|
|
|
69 results.Add(Pass(message));
|
|
|
70 }
|
|
|
71 else
|
|
|
72 {
|
|
|
73 results.Add(Fail("Unable to parse df output as integer: " + tokens[0]));
|
|
|
74 }
|
|
|
75 }
|
|
|
76 }
|
|
|
77 return results;
|
|
|
78 }
|
|
|
79
|
|
|
80 public override string Validate(bool saving = true)
|
|
|
81 {
|
|
|
82 string message = base.Validate();
|
|
|
83 if (Device.IsNullOrEmpty())
|
|
|
84 message += "Device is required." + Environment.NewLine;
|
|
|
85 if (MinFreeSpace <= 0)
|
|
|
86 message += "Free space must be greater than 0." + Environment.NewLine;
|
|
|
87 else if (FreeSpaceUnits == FreeSpaceUnits.percent && MinFreeSpace > 100)
|
|
|
88 message += "Free space percent must be between 0 and 100." + Environment.NewLine;
|
|
|
89 return message;
|
|
|
90 }
|
|
|
91 }
|
|
|
92
|
|
|
93 public enum FreeSpaceUnits { MB = 0, GB = 1, percent = 2 }
|
|
|
94 }
|
