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38ad2f41ac
**What changed?** Add an interceptor to return Unavailable to WorkflowService methods until the frontend considers itself "healthy", which currently means "membership is initialized". **Why?** Fixes #5015 **How did you test it?** mostly manually **Potential risks** This adds a window of time where frontend can now return Unavailable where previously it might have succeeded or returned a different error code. Specifically note that client.Dial in go sdk (at least) will fail fast on this error and the caller will need to retry. --------- Co-authored-by: Tim Deeb-Swihart <[email protected]>
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package interceptor
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import (
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"context"
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"google.golang.org/grpc"
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"go.temporal.io/server/common/api"
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"go.temporal.io/server/common/headers"
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"go.temporal.io/server/common/namespace"
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)
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type (
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CallerInfoInterceptor struct {
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namespaceRegistry namespace.Registry
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}
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)
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var _ grpc.UnaryServerInterceptor = (*CallerInfoInterceptor)(nil).Intercept
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func NewCallerInfoInterceptor(
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namespaceRegistry namespace.Registry,
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) *CallerInfoInterceptor {
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return &CallerInfoInterceptor{
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namespaceRegistry: namespaceRegistry,
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}
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}
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func (i *CallerInfoInterceptor) Intercept(
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ctx context.Context,
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req interface{},
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info *grpc.UnaryServerInfo,
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handler grpc.UnaryHandler,
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) (interface{}, error) {
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callerInfo := headers.GetCallerInfo(ctx)
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updateInfo := false
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if callerInfo.CallerName == "" {
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callerInfo.CallerName = string(MustGetNamespaceName(i.namespaceRegistry, req))
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updateInfo = callerInfo.CallerName != ""
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}
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if callerInfo.CallerType == "" {
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callerInfo.CallerType = headers.CallerTypeAPI
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updateInfo = true
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}
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if (callerInfo.CallerType == headers.CallerTypeAPI || callerInfo.CallerType == headers.CallerTypeOperator) &&
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callerInfo.CallOrigin == "" {
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method := api.MethodName(info.FullMethod)
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callerInfo.CallOrigin = method
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updateInfo = true
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}
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if updateInfo {
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ctx = headers.SetCallerInfo(ctx, callerInfo)
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}
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return handler(ctx, req)
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}
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