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feat(agent): Adding graphql introspection to agent (kubeshop#3984)
* feat(agent): Adding graphql introspection to agent * feat(agent): Adding graphql introspection to agent * feat(agent): Adding graphql trigger * feat(agent): Adding graphql trigger * feat(agent): updating cli client * simplifying introspection * reverging go mod
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63 changes: 63 additions & 0 deletions
63
agent/client/workflow_listen_for_graphql_introspection_requests.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package client | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "time" | ||
|
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| "github.com/kubeshop/tracetest/agent/proto" | ||
| "github.com/kubeshop/tracetest/agent/telemetry" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
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| func (c *Client) startGraphqlIntrospectionListener(ctx context.Context) error { | ||
| logger := c.logger.Named("graphqlIntrospectionListener") | ||
| logger.Debug("Starting") | ||
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| client := proto.NewOrchestratorClient(c.conn) | ||
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| stream, err := client.RegisterGraphqlIntrospectListener(ctx, c.sessionConfig.AgentIdentification) | ||
| if err != nil { | ||
| logger.Error("could not open agent stream", zap.Error(err)) | ||
| return fmt.Errorf("could not open agent stream: %w", err) | ||
| } | ||
|
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| go func() { | ||
| for { | ||
| req := proto.GraphqlIntrospectRequest{} | ||
| err := stream.RecvMsg(&req) | ||
| if err != nil { | ||
| logger.Error("could not get message from graphql introspection stream", zap.Error(err)) | ||
| } | ||
| if isEndOfFileError(err) || isCancelledError(err) { | ||
| logger.Debug("graphql introspection stream closed") | ||
| return | ||
| } | ||
|
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| reconnected, err := c.handleDisconnectionError(err, &req) | ||
| if reconnected { | ||
| logger.Warn("reconnected to graphql introspection stream") | ||
| return | ||
| } | ||
|
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||
| if err != nil { | ||
| logger.Error("could not get message from graphql introspection stream", zap.Error(err)) | ||
| log.Println("could not get message from graphql introspection stream: %w", err) | ||
| time.Sleep(1 * time.Second) | ||
| continue | ||
| } | ||
|
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| // we want a new context per request, not to reuse the one from the stream | ||
| ctx := telemetry.InjectMetadataIntoContext(context.Background(), req.Metadata) | ||
| go func() { | ||
| err = c.graphqlIntrospectionListener(ctx, &req) | ||
| if err != nil { | ||
| logger.Error("could not handle graphql introspection request", zap.Error(err)) | ||
| fmt.Println(err.Error()) | ||
| } | ||
| }() | ||
| } | ||
| }() | ||
| return nil | ||
| } |
23 changes: 23 additions & 0 deletions
23
agent/client/workflow_send_graphql_introspection_result.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| package client | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
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| "github.com/kubeshop/tracetest/agent/proto" | ||
| "github.com/kubeshop/tracetest/agent/telemetry" | ||
| ) | ||
|
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| func (c *Client) SendGraphqlIntrospectionResult(ctx context.Context, response *proto.GraphqlIntrospectResponse) error { | ||
| client := proto.NewOrchestratorClient(c.conn) | ||
|
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| response.AgentIdentification = c.sessionConfig.AgentIdentification | ||
| response.Metadata = telemetry.ExtractMetadataFromContext(ctx) | ||
|
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| _, err := client.SendGraphqlIntrospectResult(ctx, response) | ||
| if err != nil { | ||
| return fmt.Errorf("could not send graphql introspection result request: %w", err) | ||
| } | ||
|
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| return nil | ||
| } |
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