-
Notifications
You must be signed in to change notification settings - Fork 4
/
health.go
90 lines (79 loc) · 2.76 KB
/
health.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
package health
import (
"context"
"log/slog"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"github.com/opentdf/platform/service/internal/logger"
"github.com/opentdf/platform/service/pkg/serviceregistry"
"google.golang.org/grpc/codes"
healthpb "google.golang.org/grpc/health/grpc_health_v1"
"google.golang.org/grpc/status"
)
var (
serviceHealthChecks = make(map[string]func(context.Context) error)
)
type HealthService struct { //nolint:revive // HealthService is a valid name for this struct
healthpb.UnimplementedHealthServer
logger *logger.Logger
}
func NewRegistration() serviceregistry.Registration {
return serviceregistry.Registration{
Namespace: "health",
ServiceDesc: &healthpb.Health_ServiceDesc,
RegisterFunc: func(srp serviceregistry.RegistrationParams) (any, serviceregistry.HandlerServer) {
err := srp.WellKnownConfig("health", map[string]any{
"endpoint": "/healthz",
})
if err != nil {
srp.Logger.Error("failed to set well-known config", slog.String("error", err.Error()))
}
return &HealthService{logger: srp.Logger}, func(_ context.Context, _ *runtime.ServeMux, _ any) error {
return nil
}
},
}
}
func (s HealthService) Check(ctx context.Context, req *healthpb.HealthCheckRequest) (*healthpb.HealthCheckResponse, error) {
if req.GetService() == "" {
return &healthpb.HealthCheckResponse{
Status: healthpb.HealthCheckResponse_SERVING,
}, nil
}
switch req.GetService() {
case "all":
for service, check := range serviceHealthChecks {
if err := check(ctx); err != nil {
s.logger.ErrorContext(ctx, "service is not ready", slog.String("service", service), slog.String("error", err.Error()))
return &healthpb.HealthCheckResponse{
Status: healthpb.HealthCheckResponse_NOT_SERVING,
}, nil
}
}
default:
if check, ok := serviceHealthChecks[req.GetService()]; ok {
if err := check(ctx); err != nil {
s.logger.ErrorContext(ctx, "service is not ready", slog.String("service", req.GetService()), slog.String("error", err.Error()))
return &healthpb.HealthCheckResponse{
Status: healthpb.HealthCheckResponse_NOT_SERVING,
}, nil
}
} else {
return &healthpb.HealthCheckResponse{
Status: healthpb.HealthCheckResponse_SERVICE_UNKNOWN,
}, nil
}
}
return &healthpb.HealthCheckResponse{
Status: healthpb.HealthCheckResponse_SERVING,
}, nil
}
func (s HealthService) Watch(_ *healthpb.HealthCheckRequest, _ healthpb.Health_WatchServer) error {
return status.Error(codes.Unimplemented, "unimplemented")
}
func RegisterReadinessCheck(namespace string, service func(context.Context) error) error {
if _, ok := serviceHealthChecks[namespace]; ok {
return status.Error(codes.AlreadyExists, "readiness check already registered")
}
serviceHealthChecks[namespace] = service
return nil
}