woodpecker/agent/rpc/client_grpc.go
6543 92614dfb1e
Agent check gRPC version against server (#1653)
close #1114

As long as the `VersionResponse` type is not changed the check will
fail/pass gracefully

example output:
```
{"level":"error","error":"GRPC version mismatch","time":"2023-03-19T19:49:09+01:00","message":"Server version next-6923e7ab does report grpc version 2 but we only understand 1"}
GRPC version mismatch
```
2023-03-19 22:42:21 +01:00

382 lines
8.7 KiB
Go

// 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.
package rpc
import (
"context"
"encoding/json"
"strings"
"time"
"github.com/rs/zerolog/log"
"google.golang.org/grpc"
"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"
)
var backoff = time.Second
// set grpc version on compile time to compare against server version response
const ClientGrpcVersion int32 = proto.Version
type client struct {
client proto.WoodpeckerClient
conn *grpc.ClientConn
}
// NewGrpcClient returns a new grpc Client.
func NewGrpcClient(conn *grpc.ClientConn) rpc.Peer {
client := new(client)
client.client = proto.NewWoodpeckerClient(conn)
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
}
// 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
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
}
// 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")
} else {
log.Err(err).Msgf("grpc error: done(): code: %v: %s", status.Code(err), err)
}
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return nil, err
}
if ctx.Err() != nil {
return nil, ctx.Err()
}
<-time.After(backoff)
}
if res.GetPipeline() == nil {
return nil, nil
}
p := new(rpc.Pipeline)
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)
}
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
}
log.Err(err).Msgf("grpc error: wait(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
return nil
}
// Init signals the pipeline is initialized.
func (c *client) Init(ctx context.Context, id string, state rpc.State) (err error) {
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
for {
_, err = c.client.Init(ctx, req)
if err == nil {
break
}
log.Err(err).Msgf("grpc error: init(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
return nil
}
// Done signals the pipeline is complete.
func (c *client) Done(ctx context.Context, id string, state rpc.State) (err error) {
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
for {
_, err = c.client.Done(ctx, req)
if err == nil {
break
}
log.Err(err).Msgf("grpc error: done(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
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
}
log.Err(err).Msgf("grpc error: extend(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
return nil
}
// Update updates the pipeline state.
func (c *client) Update(ctx context.Context, id string, state rpc.State) (err error) {
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
for {
_, err = c.client.Update(ctx, req)
if err == nil {
break
}
log.Err(err).Msgf("grpc error: update(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
return nil
}
// Upload uploads the pipeline artifact.
func (c *client) Upload(ctx context.Context, id string, file *rpc.File) (err error) {
req := new(proto.UploadRequest)
req.Id = id
req.File = new(proto.File)
req.File.Name = file.Name
req.File.Mime = file.Mime
req.File.Step = file.Step
req.File.Size = int32(file.Size)
req.File.Time = file.Time
req.File.Data = file.Data
req.File.Meta = file.Meta
for {
_, err = c.client.Upload(ctx, req)
if err == nil {
break
}
log.Err(err).Msgf("grpc error: upload(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
return nil
}
// Log writes the pipeline log entry.
func (c *client) Log(ctx context.Context, id string, line *rpc.Line) (err error) {
req := new(proto.LogRequest)
req.Id = id
req.Line = new(proto.Line)
req.Line.Out = line.Out
req.Line.Pos = int32(line.Pos)
req.Line.Step = line.Step
req.Line.Time = line.Time
for {
_, err = c.client.Log(ctx, req)
if err == nil {
break
}
log.Err(err).Msgf("grpc error: log(): code: %v: %s", status.Code(err), err)
switch status.Code(err) {
case
codes.Aborted,
codes.DataLoss,
codes.DeadlineExceeded,
codes.Internal,
codes.Unavailable:
// non-fatal errors
default:
return err
}
<-time.After(backoff)
}
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)
}
}