-
Notifications
You must be signed in to change notification settings - Fork 1
/
invitation_email_controller.go
132 lines (110 loc) · 4.3 KB
/
invitation_email_controller.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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
package controllers
import (
"context"
"fmt"
"time"
"go.uber.org/multierr"
"golang.org/x/time/rate"
apimeta "k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
"k8s.io/client-go/util/workqueue"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/log"
"github.com/appuio/control-api/mailsenders"
"github.com/prometheus/client_golang/prometheus"
userv1 "github.com/appuio/control-api/apis/user/v1"
)
// InvitationEmailReconciler reconciles invitations and sends invitation emails if appropriate
type InvitationEmailReconciler struct {
client.Client
Recorder record.EventRecorder
Scheme *runtime.Scheme
MailSender mailsenders.MailSender
BaseRetryDelay time.Duration
failureCounter prometheus.Counter
successCounter prometheus.Counter
}
func NewInvitationEmailReconciler(client client.Client, eventRecorder record.EventRecorder, scheme *runtime.Scheme, mailSender mailsenders.MailSender, baseRetryDelay time.Duration) InvitationEmailReconciler {
return InvitationEmailReconciler{
Client: client,
Recorder: eventRecorder,
Scheme: scheme,
MailSender: mailSender,
BaseRetryDelay: baseRetryDelay,
failureCounter: newFailureCounter("control_api_invitation_emails"),
successCounter: newSuccessCounter("control_api_invitation_emails"),
}
}
func (r *InvitationEmailReconciler) GetMetrics() prometheus.Collector {
reg := prometheus.NewRegistry()
reg.MustRegister(r.failureCounter)
reg.MustRegister(r.successCounter)
return reg
}
//+kubebuilder:rbac:groups="rbac.appuio.io",resources=invitations,verbs=get;list;watch
//+kubebuilder:rbac:groups="user.appuio.io",resources=invitations,verbs=get;list;watch
//+kubebuilder:rbac:groups="rbac.appuio.io",resources=invitations/status,verbs=get;update;patch
//+kubebuilder:rbac:groups="user.appuio.io",resources=invitations/status,verbs=get;update;patch
// Reconcile reacts to redeemed invitations and sends invitation emails to the user if needed.
func (r *InvitationEmailReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
log := log.FromContext(ctx)
log.V(1).WithValues("request", req).Info("Reconciling")
inv := userv1.Invitation{}
if err := r.Get(ctx, req.NamespacedName, &inv); err != nil {
return ctrl.Result{}, client.IgnoreNotFound(err)
}
if !inv.ObjectMeta.DeletionTimestamp.IsZero() {
return ctrl.Result{}, nil
}
if inv.Status.Token == "" || inv.Spec.Email == "" {
return ctrl.Result{}, nil
}
if apimeta.IsStatusConditionTrue(inv.Status.Conditions, userv1.ConditionEmailSent) {
return ctrl.Result{}, nil
}
email := inv.Spec.Email
id, err := r.MailSender.Send(ctx, email, inv)
if err != nil {
log.V(0).Error(err, "Error in e-mail backend")
r.failureCounter.Add(1)
apimeta.SetStatusCondition(&inv.Status.Conditions, metav1.Condition{
Type: userv1.ConditionEmailSent,
Status: metav1.ConditionFalse,
Reason: userv1.ConditionReasonSendFailed,
Message: err.Error(),
})
return ctrl.Result{}, multierr.Append(err, r.Client.Status().Update(ctx, &inv))
}
r.successCounter.Add(1)
var message string
if id != "" {
message = fmt.Sprintf("Message ID: %s", id)
}
apimeta.SetStatusCondition(&inv.Status.Conditions, metav1.Condition{
Type: userv1.ConditionEmailSent,
Status: metav1.ConditionTrue,
Message: message,
})
return ctrl.Result{}, r.Client.Status().Update(ctx, &inv)
}
// SetupWithManager sets up the controller with the Manager.
func (r *InvitationEmailReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&userv1.Invitation{}).
WithOptions(controller.Options{
RateLimiter: r.rateLimiter(),
}).
Complete(r)
}
func (r *InvitationEmailReconciler) rateLimiter() workqueue.RateLimiter {
// This is the default rate limiter for controllers with higher baseDelay if the reconciliation fails.
return workqueue.NewMaxOfRateLimiter(
workqueue.NewItemExponentialFailureRateLimiter(r.BaseRetryDelay, 5*time.Minute),
// 10 qps, 100 bucket size. This is only for retry speed and its only the overall factor (not per item)
&workqueue.BucketRateLimiter{Limiter: rate.NewLimiter(rate.Limit(10), 100)},
)
}