91 lines
2.4 KiB
Ruby
91 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Kubernetes
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module Kubeconfig
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class Template
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ENTRIES = {
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cluster: Gitlab::Kubernetes::Kubeconfig::Entry::Cluster,
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user: Gitlab::Kubernetes::Kubeconfig::Entry::User,
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context: Gitlab::Kubernetes::Kubeconfig::Entry::Context
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}.freeze
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def initialize
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@clusters = []
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@users = []
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@contexts = []
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@current_context = nil
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end
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def valid?
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contexts.present?
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end
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def add_cluster(**args)
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clusters << new_entry(:cluster, **args)
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end
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def add_user(**args)
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users << new_entry(:user, **args)
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end
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def add_context(**args)
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contexts << new_entry(:context, **args)
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end
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def merge_yaml(kubeconfig_yaml)
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return unless kubeconfig_yaml
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kubeconfig_yaml = YAML.safe_load(kubeconfig_yaml, symbolize_names: true)
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kubeconfig_yaml[:users].each do |user|
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add_user(
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name: user[:name],
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token: user.dig(:user, :token)
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)
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end
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kubeconfig_yaml[:clusters].each do |cluster|
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ca_pem = cluster.dig(:cluster, :'certificate-authority-data')&.yield_self do |data|
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Base64.strict_decode64(data)
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end
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add_cluster(
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name: cluster[:name],
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url: cluster.dig(:cluster, :server),
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ca_pem: ca_pem
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)
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end
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kubeconfig_yaml[:contexts].each do |context|
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add_context(
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name: context[:name],
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**context[:context]&.slice(:cluster, :user, :namespace)
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)
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end
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@current_context = kubeconfig_yaml[:'current-context']
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end
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def to_h
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{
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apiVersion: 'v1',
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kind: 'Config',
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clusters: clusters.map(&:to_h),
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users: users.map(&:to_h),
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contexts: contexts.map(&:to_h),
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'current-context': current_context
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}.compact
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end
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def to_yaml
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YAML.dump(to_h.deep_stringify_keys)
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end
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private
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attr_reader :clusters, :users, :contexts, :current_context
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def new_entry(entry, **args)
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ENTRIES.fetch(entry).new(**args)
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end
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end
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end
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end
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end
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