woodpecker/agent/rpc/client_grpc.go

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// Copyright 2023 Woodpecker Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
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package rpc
import (
"context"
"encoding/json"
"strings"
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"time"
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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"
"google.golang.org/grpc/status"
backend "github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
"github.com/woodpecker-ci/woodpecker/pipeline/rpc"
"github.com/woodpecker-ci/woodpecker/pipeline/rpc/proto"
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)
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var backoff = time.Second
// set grpc version on compile time to compare against server version response
const ClientGrpcVersion int32 = proto.Version
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type client struct {
client proto.WoodpeckerClient
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conn *grpc.ClientConn
}
// NewGrpcClient returns a new grpc Client.
func NewGrpcClient(conn *grpc.ClientConn) rpc.Peer {
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client := new(client)
client.client = proto.NewWoodpeckerClient(conn)
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client.conn = conn
return client
}
func (c *client) Close() error {
return c.conn.Close()
}
// Version returns the server- & grpc-version
func (c *client) Version(ctx context.Context) (*rpc.Version, error) {
res, err := c.client.Version(ctx, &proto.Empty{})
if err != nil {
return nil, err
}
return &rpc.Version{
GrpcVersion: res.GrpcVersion,
ServerVersion: res.ServerVersion,
}, nil
}
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// Next returns the next pipeline in the queue.
func (c *client) Next(ctx context.Context, f rpc.Filter) (*rpc.Pipeline, error) {
var res *proto.NextResponse
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var err error
req := new(proto.NextRequest)
req.Filter = new(proto.Filter)
req.Filter.Labels = f.Labels
for {
res, err = c.client.Next(ctx, req)
if err == nil {
break
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}
// TODO: remove after adding continuous data exchange by something like #536
if strings.Contains(err.Error(), "\"too_many_pings\"") {
// https://github.com/woodpecker-ci/woodpecker/issues/717#issuecomment-1049365104
log.Trace().Err(err).Msg("grpc: to many keepalive pings without sending data")
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} else {
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log.Err(err).Msgf("grpc error: done(): code: %v: %s", status.Code(err), err)
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}
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switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return nil, err
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}
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if ctx.Err() != nil {
return nil, ctx.Err()
}
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<-time.After(backoff)
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}
if res.GetPipeline() == nil {
return nil, nil
}
p := new(rpc.Pipeline)
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p.ID = res.GetPipeline().GetId()
p.Timeout = res.GetPipeline().GetTimeout()
p.Config = new(backend.Config)
if err := json.Unmarshal(res.GetPipeline().GetPayload(), p.Config); err != nil {
log.Error().Err(err).Msgf("could not unmarshal pipeline config of '%s'", p.ID)
}
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return p, nil
}
// Wait blocks until the pipeline is complete.
func (c *client) Wait(ctx context.Context, id string) (err error) {
req := new(proto.WaitRequest)
req.Id = id
for {
_, err = c.client.Wait(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: wait(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
// Init signals the pipeline is initialized.
func (c *client) Init(ctx context.Context, id string, state rpc.State) (err error) {
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req := new(proto.InitRequest)
req.Id = id
req.State = new(proto.State)
req.State.Error = state.Error
req.State.ExitCode = int32(state.ExitCode)
req.State.Exited = state.Exited
req.State.Finished = state.Finished
req.State.Started = state.Started
req.State.Name = state.Step
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for {
_, err = c.client.Init(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: init(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
// Done signals the pipeline is complete.
func (c *client) Done(ctx context.Context, id string, state rpc.State) (err error) {
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req := new(proto.DoneRequest)
req.Id = id
req.State = new(proto.State)
req.State.Error = state.Error
req.State.ExitCode = int32(state.ExitCode)
req.State.Exited = state.Exited
req.State.Finished = state.Finished
req.State.Started = state.Started
req.State.Name = state.Step
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for {
_, err = c.client.Done(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: done(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
// Extend extends the pipeline deadline
func (c *client) Extend(ctx context.Context, id string) (err error) {
req := new(proto.ExtendRequest)
req.Id = id
for {
_, err = c.client.Extend(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: extend(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
// Update updates the pipeline state.
func (c *client) Update(ctx context.Context, id string, state rpc.State) (err error) {
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req := new(proto.UpdateRequest)
req.Id = id
req.State = new(proto.State)
req.State.Error = state.Error
req.State.ExitCode = int32(state.ExitCode)
req.State.Exited = state.Exited
req.State.Finished = state.Finished
req.State.Started = state.Started
req.State.Name = state.Step
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for {
_, err = c.client.Update(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: update(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
// Log writes the pipeline log entry.
func (c *client) Log(ctx context.Context, logEntry *rpc.LogEntry) (err error) {
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req := new(proto.LogRequest)
req.LogEntry = new(proto.LogEntry)
req.LogEntry.StepUuid = logEntry.StepUUID
req.LogEntry.Data = logEntry.Data
req.LogEntry.Line = int32(logEntry.Line)
req.LogEntry.Time = logEntry.Time
req.LogEntry.Type = int32(logEntry.Type)
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for {
_, err = c.client.Log(ctx, req)
if err == nil {
break
}
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log.Err(err).Msgf("grpc error: log(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
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case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
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return err
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}
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<-time.After(backoff)
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}
return nil
}
func (c *client) RegisterAgent(ctx context.Context, platform, backend, version string, capacity int) (int64, error) {
req := new(proto.RegisterAgentRequest)
req.Platform = platform
req.Backend = backend
req.Version = version
req.Capacity = int32(capacity)
res, err := c.client.RegisterAgent(ctx, req)
return res.GetAgentId(), err
}
func (c *client) ReportHealth(ctx context.Context) (err error) {
req := new(proto.ReportHealthRequest)
req.Status = "I am alive!"
for {
_, err = c.client.ReportHealth(ctx, req)
if err == nil {
return nil
}
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
}