Class: Metatron::Templates::Container

Inherits:
Object
  • Object
show all
Defined in:
lib/metatron/templates/container.rb

Overview

Template for containers used by k8s resources (not an actual resource)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, image = "gcr.io/google_containers/pause") ⇒ Container

Returns a new instance of Container.



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# File 'lib/metatron/templates/container.rb', line 19

def initialize(name, image = "gcr.io/google_containers/pause")
  @name = name
  @image = image
  @command = nil
  @args = []
  @env = []
  @resources = {}
  @volume_mounts = []
  @image_pull_policy = "IfNotPresent"
  @lifecycle = {}
  @probes = {}
  @stdin = true
  @tty = true
  @termination_message_path = nil
  @termination_message_policy = nil
end

Instance Attribute Details

#args ⇒ Object

Returns the value of attribute args.



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# File 'lib/metatron/templates/container.rb', line 7

def args
  @args
end

#command ⇒ Object

Returns the value of attribute command.



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# File 'lib/metatron/templates/container.rb', line 7

def command
  @command
end

#env ⇒ Object Also known as: environment

Returns the value of attribute env.



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# File 'lib/metatron/templates/container.rb', line 7

def env
  @env
end

#envfrom ⇒ Object Also known as: envFrom

Returns the value of attribute envfrom.



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# File 'lib/metatron/templates/container.rb', line 7

def envfrom
  @envfrom
end

#image ⇒ Object

Returns the value of attribute image.



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# File 'lib/metatron/templates/container.rb', line 7

def image
  @image
end

#image_pull_policy ⇒ Object Also known as: imagePullPolicy

Returns the value of attribute image_pull_policy.



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# File 'lib/metatron/templates/container.rb', line 7

def image_pull_policy
  @image_pull_policy
end

#lifecycle ⇒ Object

Returns the value of attribute lifecycle.



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# File 'lib/metatron/templates/container.rb', line 7

def lifecycle
  @lifecycle
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/metatron/templates/container.rb', line 7

def name
  @name
end

#ports ⇒ Object

Returns the value of attribute ports.



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# File 'lib/metatron/templates/container.rb', line 7

def ports
  @ports
end

#probes ⇒ Object

Returns the value of attribute probes.



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# File 'lib/metatron/templates/container.rb', line 7

def probes
  @probes
end

#resources ⇒ Object

Returns the value of attribute resources.



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# File 'lib/metatron/templates/container.rb', line 7

def resources
  @resources
end

#security_context ⇒ Object Also known as: securityContext

Returns the value of attribute security_context.



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# File 'lib/metatron/templates/container.rb', line 7

def security_context
  @security_context
end

#stdin ⇒ Object

Returns the value of attribute stdin.



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# File 'lib/metatron/templates/container.rb', line 7

def stdin
  @stdin
end

#termination_message_path ⇒ Object Also known as: terminationMessagePath

Returns the value of attribute termination_message_path.



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# File 'lib/metatron/templates/container.rb', line 7

def termination_message_path
  @termination_message_path
end

#termination_message_policy ⇒ Object Also known as: terminationMessagePolicy

Returns the value of attribute termination_message_policy.



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# File 'lib/metatron/templates/container.rb', line 7

def termination_message_policy
  @termination_message_policy
end

#tty ⇒ Object

Returns the value of attribute tty.



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# File 'lib/metatron/templates/container.rb', line 7

def tty
  @tty
end

#volume_mounts ⇒ Object Also known as: volumeMounts

Returns the value of attribute volume_mounts.



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# File 'lib/metatron/templates/container.rb', line 7

def volume_mounts
  @volume_mounts
end

Instance Method Details

#formatted_args ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 58

def formatted_args
  return {} unless args && !args.empty?

  { args: }
end

#formatted_envfrom ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 92

def formatted_envfrom
  if envfrom && !envfrom.empty?
    { envFrom: envfrom.map { |secret| { secretRef: { name: secret } } } }
  else
    {}
  end
end

#formatted_environment ⇒ Object

rubocop:disable Metrics/PerceivedComplexity



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# File 'lib/metatron/templates/container.rb', line 70

def formatted_environment # rubocop:disable Metrics/PerceivedComplexity
  return {} unless env && !env.empty?

  if env.is_a?(Hash)
    mapped_values = env.map do |key, value|
      v = { name: key }
      if value.is_a?(Hash)
        v.merge!(value)
      else
        v[:value] = value
      end
      v
    end

    { env: mapped_values }
  elsif env.is_a?(Array)
    { env: }
  else
    raise "Environment must be a Hash or Array"
  end
end

#formatted_lifecycle ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 64

def formatted_lifecycle
  return {} unless lifecycle && !lifecycle.empty?

  { lifecycle: }
end

#formatted_ports ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 102

def formatted_ports = ports&.any? ? { ports: } : {}

#formatted_resources ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 100

def formatted_resources = resources&.any? ? { resources: } : {}

#formatted_security_context ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 104

def formatted_security_context
  security_context && !security_context.empty? ? { securityContext: } : {}
end

#formatted_volume_mounts ⇒ Object 



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# File 'lib/metatron/templates/container.rb', line 108

def formatted_volume_mounts = volume_mounts&.any? ? { volumeMounts: } : {}

#render ⇒ Object

rubocop:disable Metrics/AbcSize



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# File 'lib/metatron/templates/container.rb', line 36

def render # rubocop:disable Metrics/AbcSize
  {
    name:,
    command:,
    image:,
    imagePullPolicy:,
    stdin:,
    tty:,
    terminationMessagePath:,
    terminationMessagePolicy:
  }.merge(probes)
    .merge(formatted_resources)
    .merge(formatted_environment)
    .merge(formatted_envfrom)
    .merge(formatted_ports)
    .merge(formatted_volume_mounts)
    .merge(formatted_security_context)
    .merge(formatted_args)
    .merge(formatted_lifecycle)
    .compact
end