Class: Kubes::Config

Inherits:
Object
  • Object
show all
Includes:
DslEvaluator, Singleton
Defined in:
lib/kubes/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Config

Returns a new instance of Config.



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# File 'lib/kubes/config.rb', line 7

def initialize
  @config = defaults
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/kubes/config.rb', line 6

def config
  @config
end

Instance Method Details

#configure {|@config| ... } ⇒ Object

Yields:



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# File 'lib/kubes/config.rb', line 87

def configure
  yield(@config)
end

#defaults ⇒ Object 



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# File 'lib/kubes/config.rb', line 11

def defaults
  config = ActiveSupport::OrderedOptions.new

  config.auto_prune = true

  config.builder = "docker" # IE: docker or gcloud

  # Auto-switching options
  config.kubectl = ActiveSupport::OrderedOptions.new
  config.kubectl.context = nil
  config.kubectl.context_keep = false # after switching context keep it

  # whether or not continue if the kubectl command fails
  config.kubectl.exit_on_fail = ActiveSupport::OrderedOptions.new
  config.kubectl.exit_on_fail.apply  = true # whether or not continue if the kubectl apply command fails
  config.kubectl.exit_on_fail.delete = false # whether or not continue if the kubectl delete command fails
  # Note: delete is a internal method to ActiveSupport::OrderedOptions so will have to access it with ['...']

  config.kubectl.order = ActiveSupport::OrderedOptions.new
  config.kubectl.order.roles = role_order
  config.kubectl.order.kinds = kind_order

  config.repo = nil # expected to be set by .kubes/config.rb
  config.repo_auto_auth = true

  config.layering = ActiveSupport::OrderedOptions.new
  config.layering.show = ENV['KUBES_LAYERING_SHOW'] || false

  config.logger = Logger.new($stderr)
  config.logger.level = ENV['KUBES_LOG_LEVEL'] || :info

  config.skip = []

  config.state = ActiveSupport::OrderedOptions.new
  config.state.path = ["#{Kubes.root}/.kubes/tmp/state", Kubes.app, "#{Kubes.env}/data.json"].compact.join('/')

  config.suffix_hash = true # append suffix hash to ConfigMap and Secret

  config.merger = ActiveSupport::OrderedOptions.new
  config.merger.options = {overwrite_arrays: true}

  config
end

#kind_order ⇒ Object

Create resources in specific order so dependent resources are available



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# File 'lib/kubes/config.rb', line 64

def kind_order
  %w[
    Namespace
    StorageClass
    CustomResourceDefinition
    MutatingWebhookConfiguration
    ServiceAccount
    PodSecurityPolicy
    Role
    ClusterRole
    RoleBinding
    ClusterRoleBinding
    ConfigMap
    Secret
    Service
    LimitRange
    Deployment
    StatefulSet
    CronJob
    PodDisruptionBudget
  ]
end

#load_configs ⇒ Object

Load configs example:

.kubes/config.rb .kubes/config/env/dev.rb .kubes/config/plugins/google.rb .kubes/config/plugins/google/dev.rb



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# File 'lib/kubes/config.rb', line 98

def load_configs
  evaluate_file(".kubes/config.rb")
  evaluate_file(".kubes/config/env/#{Kubes.env}.rb")
  if Kubes.app
    # TODO: deprecate
    evaluate_file(".kubes/config/env/#{Kubes.app}.rb")
    evaluate_file(".kubes/config/env/#{Kubes.app}/#{Kubes.env}.rb")
    # newer
    evaluate_file(".kubes/config/app/#{Kubes.app}.rb")
    evaluate_file(".kubes/config/app/#{Kubes.app}/#{Kubes.env}.rb")
  end
  Kubes::Plugin.plugins.each do |klass|
    # klass: IE: KubesAws, KubesGoogle
    name = klass.to_s.underscore.sub('kubes_','') # kubes_google => google
    evaluate_file(".kubes/config/plugins/#{name}.rb")
    evaluate_file(".kubes/config/plugins/#{name}/#{Kubes.env}.rb")
  end
end

#role_order ⇒ Object

Create shared resources first



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# File 'lib/kubes/config.rb', line 56

def role_order
  %w[
    common
    shared
  ]
end