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class Environment < ActiveRecord::Base
# Used to generate random suffixes for the slug
LETTERS = 'a'..'z'
NUMBERS = '0'..'9'
SUFFIX_CHARS = LETTERS.to_a + NUMBERS.to_a
belongs_to :project, required: true, validate: true
has_many :deployments, dependent: :destroy
has_one :last_deployment, -> { order('deployments.id DESC') }, class_name: 'Deployment'
before_validation :nullify_external_url
before_validation :generate_slug, if: ->(env) { env.slug.blank? }
before_save :set_environment_type
validates :name,
presence: true,
uniqueness: { scope: :project_id },
length: { maximum: 255 },
format: { with: Gitlab::Regex.environment_name_regex,
message: Gitlab::Regex.environment_name_regex_message }
validates :slug,
presence: true,
uniqueness: { scope: :project_id },
length: { maximum: 24 },
format: { with: Gitlab::Regex.environment_slug_regex,
message: Gitlab::Regex.environment_slug_regex_message }
validates :external_url,
uniqueness: { scope: :project_id },
length: { maximum: 255 },
allow_nil: true,
addressable_url: true
delegate :stop_action, :manual_actions, to: :last_deployment, allow_nil: true
scope :available, -> { with_state(:available) }
scope :stopped, -> { with_state(:stopped) }
scope :order_by_last_deployed_at, -> do
max_deployment_id_sql =
Deployment.select(Deployment.arel_table[:id].maximum).
where(Deployment.arel_table[:environment_id].eq(arel_table[:id])).
to_sql
order(Gitlab::Database.nulls_first_order("(#{max_deployment_id_sql})", 'ASC'))
end
state_machine :state, initial: :available do
event :start do
transition stopped: :available
end
event :stop do
transition available: :stopped
end
state :available
state :stopped
end
def predefined_variables
[
{ key: 'CI_ENVIRONMENT_NAME', value: name, public: true },
{ key: 'CI_ENVIRONMENT_SLUG', value: slug, public: true }
]
end
def recently_updated_on_branch?(ref)
ref.to_s == last_deployment.try(:ref)
end
def nullify_external_url
self.external_url = nil if self.external_url.blank?
end
def set_environment_type
names = name.split('/')
self.environment_type =
if names.many?
names.first
else
nil
end
end
def includes_commit?(commit)
return false unless last_deployment
last_deployment.includes_commit?(commit)
end
def last_deployed_at
last_deployment.try(:created_at)
end
def update_merge_request_metrics?
(environment_type || name) == "production"
end
def first_deployment_for(commit)
ref = project.repository.ref_name_for_sha(ref_path, commit.sha)
return nil unless ref
deployment_iid = ref.split('/').last
deployments.find_by(iid: deployment_iid)
end
def ref_path
"refs/environments/#{Shellwords.shellescape(name)}"
end
def formatted_external_url
return nil unless external_url
external_url.gsub(/\A.*?:\/\//, '')
end
def stop_action?
available? && stop_action.present?
end
def stop_with_action!(current_user)
return unless available?
stop!
stop_action&.play(current_user)
end
def actions_for(environment)
return [] unless manual_actions
manual_actions.select do |action|
action.expanded_environment_name == environment
end
end
def has_terminals?
project.deployment_service.present? && available? && last_deployment.present?
end
def terminals
project.deployment_service.terminals(self) if has_terminals?
end
def has_metrics?
project.monitoring_service.present? && available? && last_deployment.present?
end
def metrics
project.monitoring_service.environment_metrics(self) if has_metrics?
end
# An environment name is not necessarily suitable for use in URLs, DNS
# or other third-party contexts, so provide a slugified version. A slug has
# the following properties:
# * contains only lowercase letters (a-z), numbers (0-9), and '-'
# * begins with a letter
# * has a maximum length of 24 bytes (OpenShift limitation)
# * cannot end with `-`
def generate_slug
# Lowercase letters and numbers only
slugified = name.to_s.downcase.gsub(/[^a-z0-9]/, '-')
# Must start with a letter
slugified = 'env-' + slugified unless LETTERS.cover?(slugified[0])
# Repeated dashes are invalid (OpenShift limitation)
slugified.gsub!(/\-+/, '-')
# Maximum length: 24 characters (OpenShift limitation)
slugified = slugified[0..23]
# Cannot end with a dash (Kubernetes label limitation)
slugified.chop! if slugified.end_with?('-')
# Add a random suffix, shortening the current string if necessary, if it
# has been slugified. This ensures uniqueness.
if slugified != name
slugified = slugified[0..16]
slugified << '-' unless slugified.end_with?('-')
slugified << random_suffix
end
self.slug = slugified
end
def external_url_for(path, commit_sha)
return unless self.external_url
public_path = project.public_path_for_source_path(path, commit_sha)
return unless public_path
[external_url, public_path].join('/')
end
private
# Slugifying a name may remove the uniqueness guarantee afforded by it being
# based on name (which must be unique). To compensate, we add a random
# 6-byte suffix in those circumstances. This is not *guaranteed* uniqueness,
# but the chance of collisions is vanishingly small
def random_suffix
(0..5).map { SUFFIX_CHARS.sample }.join
end
end
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