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health.go
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health.go
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package grpc
import (
"context"
"google.golang.org/grpc/codes"
grpc_health "google.golang.org/grpc/health/grpc_health_v1"
"google.golang.org/grpc/status"
"github.com/pomerium/pomerium/internal/log"
)
type healthCheckSrv struct {
}
// NewHealthCheckServer returns a basic health checker
func NewHealthCheckServer() grpc_health.HealthServer {
return &healthCheckSrv{}
}
// Check confirms service is reachable, and assumes any service is operational
// an outlier detection should be used to detect runtime malfunction based on consequitive 5xx
func (h *healthCheckSrv) Check(ctx context.Context, req *grpc_health.HealthCheckRequest) (*grpc_health.HealthCheckResponse, error) {
log.Debug(ctx).Str("service", req.Service).Msg("health check")
return &grpc_health.HealthCheckResponse{
Status: grpc_health.HealthCheckResponse_SERVING,
}, nil
}
// Watch is not implemented as is not used by Envoy
func (h *healthCheckSrv) Watch(req *grpc_health.HealthCheckRequest, _ grpc_health.Health_WatchServer) error {
log.Error(context.Background()).Str("service", req.Service).Msg("health check watch")
return status.Errorf(codes.Unimplemented, "method Watch not implemented")
}