140 lines
3.9 KiB
Ruby
140 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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module Ci
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module BuildTraceChunks
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class Fog
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def self.available?
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object_store.enabled
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end
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def self.object_store
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Gitlab.config.artifacts.object_store
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end
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def available?
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self.class.available?
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end
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def data(model)
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files.get(key(model))&.body
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rescue Excon::Error::NotFound
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# If the object does not exist in the object storage, this method returns nil.
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end
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def set_data(model, new_data)
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files.create(create_attributes(model, new_data))
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end
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# This is the sequence that causes append_data to be called:
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#
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# 1. Runner sends a PUT /api/v4/jobs/:id to indicate the job is canceled or finished.
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# 2. UpdateBuildStateService#accept_build_state! persists all live job logs to object storage (or filesystem).
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# 3. UpdateBuildStateService#accept_build_state! returns a 202 to the runner.
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# 4. The runner continues to send PATCH requests with job logs until all logs have been sent and received.
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# 5. If the last PATCH request arrives after the job log has been persisted, we
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# retrieve the data from object storage to append the remaining lines.
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def append_data(model, new_data, offset)
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if offset > 0
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truncated_data = data(model).to_s.byteslice(0, offset)
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new_data = append_strings(truncated_data, new_data)
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end
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set_data(model, new_data)
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new_data.bytesize
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rescue Encoding::CompatibilityError => e
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Gitlab::ErrorTracking.track_and_raise_exception(
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e,
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build_id: model.build_id,
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chunk_index: model.chunk_index,
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chunk_start_offset: model.start_offset,
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chunk_end_offset: model.end_offset,
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chunk_size: model.size,
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chunk_data_store: model.data_store,
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offset: offset,
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old_data_encoding: truncated_data.encoding.to_s,
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new_data: new_data,
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new_data_size: new_data.bytesize,
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new_data_encoding: new_data.encoding.to_s)
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end
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def size(model)
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data(model).to_s.bytesize
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end
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def delete_data(model)
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delete_keys([[model.build_id, model.chunk_index]])
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end
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def keys(relation)
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return [] unless available?
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relation.pluck(:build_id, :chunk_index)
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end
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def delete_keys(keys)
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keys.each do |key|
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files.destroy(key_raw(*key))
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end
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end
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private
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def append_strings(old_data, new_data)
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# When object storage is in use, old_data may be retrieved in UTF-8.
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old_data = old_data.force_encoding(Encoding::ASCII_8BIT)
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# new_data should already be in ASCII-8BIT, but just in case it isn't, do this.
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new_data = new_data.force_encoding(Encoding::ASCII_8BIT)
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old_data + new_data
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end
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def key(model)
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key_raw(model.build_id, model.chunk_index)
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end
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def create_attributes(model, new_data)
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{
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key: key(model),
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body: new_data
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}.merge(object_store_config.fog_attributes)
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end
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def key_raw(build_id, chunk_index)
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"tmp/builds/#{build_id.to_i}/chunks/#{chunk_index.to_i}.log"
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end
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def bucket_name
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return unless available?
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object_store.remote_directory
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end
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def connection
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return unless available?
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@connection ||= ::Fog::Storage.new(object_store.connection.to_hash.deep_symbolize_keys)
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end
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def fog_directory
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@fog_directory ||= connection.directories.new(key: bucket_name)
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end
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def files
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@files ||= fog_directory.files
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end
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def object_store
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self.class.object_store
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end
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def object_store_raw_config
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object_store
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end
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def object_store_config
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@object_store_config ||= ::ObjectStorage::Config.new(object_store_raw_config)
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end
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end
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end
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end
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