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# frozen_string_literal: true
module Clusters
module Gcp
class FinalizeCreationService
attr_reader :provider
def execute(provider)
@provider = provider
create_gitlab_service_account!
configure_provider
configure_kubernetes
cluster.save!
rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
rescue Kubeclient::HttpError => e
provider.make_errored!("Failed to run Kubeclient: #{e.message}")
rescue ActiveRecord::RecordInvalid => e
provider.make_errored!("Failed to configure Google Kubernetes Engine Cluster: #{e.message}")
end
private
def create_gitlab_service_account!
if create_rbac_cluster?
Clusters::Gcp::Kubernetes::CreateServiceAccountService.new(kube_client).execute
end
end
def configure_provider
provider.endpoint = gke_cluster.endpoint
provider.status_event = :make_created
end
def configure_kubernetes
cluster.platform_type = :kubernetes
cluster.build_platform_kubernetes(
api_url: 'https://' + gke_cluster.endpoint,
ca_cert: Base64.decode64(gke_cluster.master_auth.cluster_ca_certificate),
username: gke_cluster.master_auth.username,
password: gke_cluster.master_auth.password,
authorization_type: authorization_type,
token: request_kubernetes_token)
end
def request_kubernetes_token
service_account_name = create_rbac_cluster? ? Clusters::Gcp::Kubernetes::SERVICE_ACCOUNT_NAME : 'default'
Clusters::Gcp::Kubernetes::FetchKubernetesTokenService.new(kube_client, service_account_name).execute
end
def authorization_type
create_rbac_cluster? ? 'rbac' : 'abac'
end
def create_rbac_cluster?
!provider.legacy_abac?
end
def kube_client
@kube_client ||= build_kube_client!(
'https://' + gke_cluster.endpoint,
Base64.decode64(gke_cluster.master_auth.cluster_ca_certificate),
gke_cluster.master_auth.username,
gke_cluster.master_auth.password,
api_groups: ['api', 'apis/rbac.authorization.k8s.io']
)
end
def build_kube_client!(api_url, ca_pem, username, password, api_groups: ['api'], api_version: 'v1')
raise "Incomplete settings" unless api_url && username && password
Gitlab::Kubernetes::KubeClient.new(
api_url,
api_groups,
api_version,
auth_options: { username: username, password: password },
ssl_options: kubeclient_ssl_options(ca_pem),
http_proxy_uri: ENV['http_proxy']
)
end
def kubeclient_ssl_options(ca_pem)
opts = { verify_ssl: OpenSSL::SSL::VERIFY_PEER }
if ca_pem.present?
opts[:cert_store] = OpenSSL::X509::Store.new
opts[:cert_store].add_cert(OpenSSL::X509::Certificate.new(ca_pem))
end
opts
end
def gke_cluster
@gke_cluster ||= provider.api_client.projects_zones_clusters_get(
provider.gcp_project_id,
provider.zone,
cluster.name)
end
def cluster
@cluster ||= provider.cluster
end
end
end
end
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