Class: Pvectl::Presenters::TopContainer

Inherits:
Container show all
Includes:
TopPresenter
Defined in:
lib/pvectl/presenters/top_container.rb

Overview

Presenter for container resource usage metrics (top command).

Inherits from Presenters::Container for reuse of formatting methods. Includes TopPresenter for shared metrics display. Focuses on CPU, memory, swap, disk, and network utilization.

Examples:

Using with formatter

presenter = TopContainer.new
formatter = Formatters::Table.new
output = formatter.format(containers, presenter)

See Also:

Instance Method Summary collapse

Methods included from TopPresenter

#cpu_cores_value, #cpu_usage_value, #percent_display, #percent_value

Methods inherited from Container

#cpu_percent, #disk_display, #disk_total_gib, #disk_used_gib, #display_name, #memory_display, #memory_total_gib, #memory_used_gib, #netin_display, #netout_display, #pool_display, #swap_display, #swap_total_mib, #swap_used_mib, #to_description

Methods inherited from Base

#tags_array, #tags_display, #template_display, #to_description, #to_wide_row, #uptime_human, #wide_columns

Instance Method Details

#columns ⇒ Array<String>

Returns column headers for standard table output.

Returns:

  • (Array<String>) —

    column headers



26
27
28
 
# File 'lib/pvectl/presenters/top_container.rb', line 26

def columns
  %w[CTID NAME NODE CPU(cores) CPU% MEMORY MEMORY%]
end

#extra_columns ⇒ Array<String>

Returns additional column headers for wide output.

Returns:

  • (Array<String>) —

    extra column headers



33
34
35
 
# File 'lib/pvectl/presenters/top_container.rb', line 33

def extra_columns
  %w[SWAP SWAP% DISK DISK% NETIN NETOUT]
end

#extra_values(model, **_context) ⇒ Array<String>

Returns additional values for wide output.

Parameters:

Returns:

  • (Array<String>) —

    extra values matching extra_columns order



60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/pvectl/presenters/top_container.rb', line 60

def extra_values(model, **_context)
  @container = model
  [
    swap_display,
    percent_display(container.swap, container.maxswap),
    disk_display,
    percent_display(container.disk, container.maxdisk),
    netin_display,
    netout_display
  ]
end

#to_hash(model) ⇒ Hash

Converts Container model to hash for JSON/YAML output.

Returns metrics-focused hash without operational info (no status, template, tags, pool, uptime).

Parameters:

Returns:

  • (Hash) —

    metrics-focused hash representation



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
 
# File 'lib/pvectl/presenters/top_container.rb', line 79

def to_hash(model)
  @container = model
  {
    "ctid" => container.vmid,
    "name" => container.name,
    "node" => container.node,
    "cpu" => {
      "usage_percent" => container.cpu.nil? ? nil : (container.cpu * 100).round,
      "cores" => container.maxcpu
    },
    "memory" => {
      "used_bytes" => container.mem,
      "total_bytes" => container.maxmem,
      "usage_percent" => percent_value(container.mem, container.maxmem)
    },
    "swap" => {
      "used_bytes" => container.swap,
      "total_bytes" => container.maxswap,
      "usage_percent" => percent_value(container.swap, container.maxswap)
    },
    "disk" => {
      "used_bytes" => container.disk,
      "total_bytes" => container.maxdisk,
      "usage_percent" => percent_value(container.disk, container.maxdisk)
    },
    "network" => {
      "in_bytes" => container.netin,
      "out_bytes" => container.netout
    }
  }
end

#to_row(model, **_context) ⇒ Array<String>

Converts Container model to table row with metrics values.

Parameters:

Returns:

  • (Array<String>) —

    row values matching columns order



42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/pvectl/presenters/top_container.rb', line 42

def to_row(model, **_context)
  @container = model
  [
    container.vmid.to_s,
    display_name,
    container.node,
    cpu_cores_value(container),
    cpu_usage_value(container),
    memory_display,
    percent_display(container.mem, container.maxmem)
  ]
end