mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-11-25 11:21:02 +00:00
540 lines
14 KiB
Go
540 lines
14 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rpc
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import (
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"context"
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"encoding/json"
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"strings"
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"time"
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"github.com/cenkalti/backoff/v4"
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"github.com/rs/zerolog/log"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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grpcproto "google.golang.org/protobuf/proto"
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backend "go.woodpecker-ci.org/woodpecker/v2/pipeline/backend/types"
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"go.woodpecker-ci.org/woodpecker/v2/pipeline/rpc"
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"go.woodpecker-ci.org/woodpecker/v2/pipeline/rpc/proto"
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)
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const (
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// Set grpc version on compile time to compare against server version response.
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ClientGrpcVersion int32 = proto.Version
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// Maximum size of an outgoing log message.
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// Picked to prevent it from going over GRPC size limit (4 MiB) with a large safety margin.
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maxLogBatchSize int = 1 * 1024 * 1024
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// Maximum amount of time between sending consecutive batched log messages.
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// Controls the delay between the CI job generating a log record, and web users receiving it.
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maxLogFlushPeriod time.Duration = time.Second
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)
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type client struct {
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client proto.WoodpeckerClient
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conn *grpc.ClientConn
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logs chan *proto.LogEntry
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}
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// NewGrpcClient returns a new grpc Client.
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func NewGrpcClient(ctx context.Context, conn *grpc.ClientConn) rpc.Peer {
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client := new(client)
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client.client = proto.NewWoodpeckerClient(conn)
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client.conn = conn
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client.logs = make(chan *proto.LogEntry, 10) // max memory use: 10 lines * 1 MiB
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go client.processLogs(ctx)
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return client
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}
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func (c *client) Close() error {
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close(c.logs)
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return c.conn.Close()
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}
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func (c *client) newBackOff() backoff.BackOff {
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b := backoff.NewExponentialBackOff()
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b.MaxElapsedTime = 0
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b.MaxInterval = 10 * time.Second //nolint:mnd
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b.InitialInterval = 10 * time.Millisecond //nolint:mnd
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return b
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}
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// Version returns the server- & grpc-version.
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func (c *client) Version(ctx context.Context) (*rpc.Version, error) {
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res, err := c.client.Version(ctx, &proto.Empty{})
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if err != nil {
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return nil, err
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}
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return &rpc.Version{
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GrpcVersion: res.GrpcVersion,
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ServerVersion: res.ServerVersion,
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}, nil
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}
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// Next returns the next workflow in the queue.
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func (c *client) Next(ctx context.Context, filter rpc.Filter) (*rpc.Workflow, error) {
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var res *proto.NextResponse
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var err error
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retry := c.newBackOff()
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req := new(proto.NextRequest)
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req.Filter = new(proto.Filter)
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req.Filter.Labels = filter.Labels
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for {
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res, err = c.client.Next(ctx, req)
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if err == nil {
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break
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}
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: next(): context canceled")
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return nil, nil
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}
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log.Error().Err(err).Msgf("grpc error: next(): code: %v", status.Code(err))
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return nil, err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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// TODO: remove after adding continuous data exchange by something like #536
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if strings.Contains(err.Error(), "\"too_many_pings\"") {
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// https://github.com/woodpecker-ci/woodpecker/issues/717#issuecomment-1049365104
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log.Trace().Err(err).Msg("grpc: to many keepalive pings without sending data")
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} else {
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log.Warn().Err(err).Msgf("grpc error: next(): code: %v", status.Code(err))
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}
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default:
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log.Error().Err(err).Msgf("grpc error: next(): code: %v", status.Code(err))
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return nil, err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return nil, nil
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}
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}
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if res.GetWorkflow() == nil {
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return nil, nil
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}
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w := new(rpc.Workflow)
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w.ID = res.GetWorkflow().GetId()
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w.Timeout = res.GetWorkflow().GetTimeout()
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w.Config = new(backend.Config)
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if err := json.Unmarshal(res.GetWorkflow().GetPayload(), w.Config); err != nil {
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log.Error().Err(err).Msgf("could not unmarshal workflow config of '%s'", w.ID)
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}
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return w, nil
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}
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// Wait blocks until the workflow is complete.
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func (c *client) Wait(ctx context.Context, workflowID string) (err error) {
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retry := c.newBackOff()
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req := new(proto.WaitRequest)
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req.Id = workflowID
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for {
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_, err = c.client.Wait(ctx, req)
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if err == nil {
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break
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}
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: wait(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: wait(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: wait(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: wait(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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// Init signals the workflow is initialized.
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func (c *client) Init(ctx context.Context, workflowID string, state rpc.WorkflowState) (err error) {
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retry := c.newBackOff()
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req := new(proto.InitRequest)
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req.Id = workflowID
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req.State = new(proto.WorkflowState)
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req.State.Started = state.Started
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req.State.Finished = state.Finished
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req.State.Error = state.Error
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for {
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_, err = c.client.Init(ctx, req)
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if err == nil {
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break
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}
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log.Error().Err(err).Msgf("grpc error: init(): code: %v", status.Code(err))
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: init(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: init(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: init(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: init(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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// Done signals the workflow is complete.
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func (c *client) Done(ctx context.Context, workflowID string, state rpc.WorkflowState) (err error) {
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retry := c.newBackOff()
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req := new(proto.DoneRequest)
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req.Id = workflowID
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req.State = new(proto.WorkflowState)
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req.State.Started = state.Started
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req.State.Finished = state.Finished
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req.State.Error = state.Error
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for {
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_, err = c.client.Done(ctx, req)
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if err == nil {
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break
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}
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log.Error().Err(err).Msgf("grpc error: done(): code: %v", status.Code(err))
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: done(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: done(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: done(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: done(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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// Extend extends the workflow deadline.
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func (c *client) Extend(ctx context.Context, workflowID string) (err error) {
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retry := c.newBackOff()
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req := new(proto.ExtendRequest)
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req.Id = workflowID
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for {
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_, err = c.client.Extend(ctx, req)
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if err == nil {
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break
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}
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log.Error().Err(err).Msgf("grpc error: extend(): code: %v", status.Code(err))
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: extend(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: extend(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: extend(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: extend(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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// Update updates the workflow state.
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func (c *client) Update(ctx context.Context, workflowID string, state rpc.StepState) (err error) {
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retry := c.newBackOff()
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req := new(proto.UpdateRequest)
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req.Id = workflowID
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req.State = new(proto.StepState)
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req.State.StepUuid = state.StepUUID
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req.State.Started = state.Started
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req.State.Finished = state.Finished
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req.State.Exited = state.Exited
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req.State.ExitCode = int32(state.ExitCode)
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req.State.Error = state.Error
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for {
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_, err = c.client.Update(ctx, req)
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if err == nil {
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break
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}
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log.Error().Err(err).Msgf("grpc error: update(): code: %v", status.Code(err))
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: update(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: update(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: update(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: update(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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// EnqueueLog queues the log entry to be written in a batch later.
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func (c *client) EnqueueLog(logEntry *rpc.LogEntry) {
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c.logs <- &proto.LogEntry{
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StepUuid: logEntry.StepUUID,
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Data: logEntry.Data,
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Line: int32(logEntry.Line),
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Time: logEntry.Time,
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Type: int32(logEntry.Type),
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}
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}
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func (c *client) processLogs(ctx context.Context) {
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var entries []*proto.LogEntry
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var bytes int
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send := func() {
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if len(entries) == 0 {
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return
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}
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log.Debug().
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Int("entries", len(entries)).
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Int("bytes", bytes).
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Msg("log drain: sending queued logs")
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if err := c.sendLogs(ctx, entries); err != nil {
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log.Error().Err(err).Msg("log drain: could not send logs to server")
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}
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// even if send failed, we don't have infinite memory; retry has already been used
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entries = entries[:0]
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bytes = 0
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}
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// ctx.Done() is covered by the log channel being closed
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for {
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select {
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case entry, ok := <-c.logs:
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if !ok {
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log.Info().Msg("log drain: channel closed")
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send()
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return
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}
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entries = append(entries, entry)
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bytes += grpcproto.Size(entry) // cspell:words grpcproto
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if bytes >= maxLogBatchSize {
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send()
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}
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case <-time.After(maxLogFlushPeriod):
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send()
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}
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}
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}
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func (c *client) sendLogs(ctx context.Context, entries []*proto.LogEntry) error {
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req := &proto.LogRequest{LogEntries: entries}
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retry := c.newBackOff()
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for {
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_, err := c.client.Log(ctx, req)
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if err == nil {
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break
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}
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: log(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: log(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: log(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: log(): code: %v", status.Code(err))
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return err
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}
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select {
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case <-time.After(retry.NextBackOff()):
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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return nil
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}
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func (c *client) RegisterAgent(ctx context.Context, info rpc.AgentInfo) (int64, error) {
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req := new(proto.RegisterAgentRequest)
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req.Info = &proto.AgentInfo{
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Platform: info.Platform,
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Backend: info.Backend,
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Version: info.Version,
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Capacity: int32(info.Capacity),
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CustomLabels: info.CustomLabels,
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}
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res, err := c.client.RegisterAgent(ctx, req)
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return res.GetAgentId(), err
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}
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func (c *client) UnregisterAgent(ctx context.Context) error {
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_, err := c.client.UnregisterAgent(ctx, &proto.Empty{})
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return err
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}
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func (c *client) ReportHealth(ctx context.Context) (err error) {
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retry := c.newBackOff()
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req := new(proto.ReportHealthRequest)
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req.Status = "I am alive!"
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for {
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_, err = c.client.ReportHealth(ctx, req)
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if err == nil {
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return nil
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}
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switch status.Code(err) {
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case codes.Canceled:
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if ctx.Err() != nil {
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// expected as context was canceled
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log.Debug().Err(err).Msgf("grpc error: report_health(): context canceled")
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return nil
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}
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log.Error().Err(err).Msgf("grpc error: report_health(): code: %v", status.Code(err))
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return err
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case
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codes.Aborted,
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codes.DataLoss,
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codes.DeadlineExceeded,
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codes.Internal,
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codes.Unavailable:
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// non-fatal errors
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log.Warn().Err(err).Msgf("grpc error: report_health(): code: %v", status.Code(err))
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default:
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log.Error().Err(err).Msgf("grpc error: report_health(): code: %v", status.Code(err))
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return err
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}
|
|
|
|
select {
|
|
case <-time.After(retry.NextBackOff()):
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
}
|
|
}
|
|
}
|