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|
class MigrateKubernetesServiceToNewClustersArchitectures < ActiveRecord::Migration
DOWNTIME = false
DEFAULT_KUBERNETES_SERVICE_CLUSTER_NAME = 'KubernetesService'.freeze
class Project < ActiveRecord::Base
self.table_name = 'projects'
has_many :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::ClustersProject'
has_many :clusters, through: :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
has_many :services, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Service'
end
class Cluster < ActiveRecord::Base
self.table_name = 'clusters'
has_many :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::ClustersProject'
has_many :projects, through: :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project'
has_one :platform_kubernetes, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::PlatformsKubernetes'
accepts_nested_attributes_for :platform_kubernetes
enum platform_type: {
kubernetes: 1
}
enum provider_type: {
user: 0,
gcp: 1
}
end
class ClustersProject < ActiveRecord::Base
self.table_name = 'cluster_projects'
belongs_to :cluster, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
belongs_to :project, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project'
end
class PlatformsKubernetes < ActiveRecord::Base
self.table_name = 'cluster_platforms_kubernetes'
belongs_to :cluster, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
attr_encrypted :token,
mode: :per_attribute_iv,
key: Gitlab::Application.secrets.db_key_base,
algorithm: 'aes-256-cbc'
end
class Service < ActiveRecord::Base
include EachBatch
self.table_name = 'services'
belongs_to :project, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project'
scope :kubernetes_service, -> do
where("services.category = 'deployment'")
.where("services.type = 'KubernetesService'")
.where("services.template = FALSE")
.order('services.project_id')
end
end
def find_dedicated_environement_scope(project)
environment_scopes = project.clusters.map(&:environment_scope)
return '*' if environment_scopes.exclude?('*') # KubernetesService should be added as a default cluster (environment_scope: '*') at first place
return 'migrated/*' if environment_scopes.exclude?('migrated/*') # If it's conflicted, the KubernetesService added as a migrated cluster
unique_iid = 0
# If it's still conflicted, finding an unique environment scope incrementaly
while true
candidate = "migrated#{unique_iid}/*"
return candidate if environment_scopes.exclude?(candidate)
unique_iid += 1
end
end
# KubernetesService might be already managed by clusters
def managed_by_clusters?(kubernetes_service)
kubernetes_service.project.clusters
.joins('INNER JOIN cluster_platforms_kubernetes ON clusters.id = cluster_platforms_kubernetes.cluster_id')
.where('cluster_platforms_kubernetes.api_url = ?', kubernetes_service.api_url)
.exists?
end
def up
MigrateKubernetesServiceToNewClustersArchitectures::Service.kubernetes_service.find_each(batch_size: 1) do |kubernetes_service|
unless managed_by_clusters?(kubernetes_service)
MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create(
enabled: kubernetes_service.active,
user_id: nil, # KubernetesService doesn't have
name: DEFAULT_KUBERNETES_SERVICE_CLUSTER_NAME,
provider_type: MigrateKubernetesServiceToNewClustersArchitectures::Cluster.provider_types[:user],
platform_type: MigrateKubernetesServiceToNewClustersArchitectures::Cluster.platform_types[:kubernetes],
projects: [kubernetes_service.project.becomes(MigrateKubernetesServiceToNewClustersArchitectures::Project)],
environment_scope: find_dedicated_environement_scope(kubernetes_service.project),
platform_kubernetes_attributes: {
api_url: kubernetes_service.api_url,
ca_cert: kubernetes_service.ca_pem,
namespace: kubernetes_service.namespace,
username: nil, # KubernetesService doesn't have
encrypted_password: nil, # KubernetesService doesn't have
encrypted_password_iv: nil, # KubernetesService doesn't have
token: kubernetes_service.token # encrypted_token and encrypted_token_iv
} )
end
# Disable the KubernetesService. Platforms::Kubernetes will be used from next time.
kubernetes_service.active = false
kubernetes_service.properties.merge!( { migrated: true } )
kubernetes_service.save!
end
end
def down
# noop
end
end
|
