75 lines
1.9 KiB
Ruby
75 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Kubernetes
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class RolloutInstances
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include ::Gitlab::Utils::StrongMemoize
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def initialize(deployments, pods)
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@deployments = deployments
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@pods = pods
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end
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def pod_instances
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pods = matching_pods + extra_pending_pods
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pods.sort_by(&:order).map do |pod|
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to_hash(pod)
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end
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end
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private
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attr_reader :deployments, :pods
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def matching_pods
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strong_memoize(:matching_pods) do
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deployment_tracks = deployments.map(&:track)
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pods.select { |p| deployment_tracks.include?(p.track) }
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end
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end
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def extra_pending_pods
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wanted_instances = sum_hashes(deployments.map { |d| { d.track => d.wanted_instances } })
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present_instances = sum_hashes(matching_pods.map { |p| { p.track => 1 } })
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pending_instances = subtract_hashes(wanted_instances, present_instances)
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pending_instances.flat_map do |track, num|
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Array.new(num, pending_pod_for(track))
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end
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end
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def sum_hashes(hashes)
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hashes.reduce({}) do |memo, hash|
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memo.merge(hash) { |_key, memo_val, hash_val| memo_val + hash_val }
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end
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end
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def subtract_hashes(hash_a, hash_b)
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hash_a.merge(hash_b) { |_key, val_a, val_b| [0, val_a - val_b].max }
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end
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def pending_pod_for(track)
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::Gitlab::Kubernetes::Pod.new({
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'status' => { 'phase' => 'Pending' },
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'metadata' => {
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'name' => 'Not provided',
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'labels' => {
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'track' => track
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}
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}
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})
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end
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def to_hash(pod)
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{
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status: pod.status&.downcase,
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pod_name: pod.name,
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tooltip: "#{pod.name} (#{pod.status})",
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track: pod.track,
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stable: pod.stable?
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}
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end
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end
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end
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end
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