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
133
134
135
136
137
138
139
140
141
142
143
package relaystatus
import (
"cmp"
"context"
"errors"
"fmt"
"strings"
"time"
commonv1 "github.com/johnandersen777/socialweb-computer-kcp/api/common/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/api/v1alpha1"
ctlruntime "github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/runtime"
"github.com/johnandersen777/socialweb-computer-kcp/internal/kit/binding"
"github.com/johnandersen777/socialweb-computer-kcp/internal/kit/conds"
"github.com/johnandersen777/socialweb-computer-kcp/internal/statusstate"
)
const (
Name = "relaystatus"
Export = "applications"
RelayKind = "Relay"
ConditionReady = "Ready"
ReasonObserved = "Observed"
ReasonWaiting = "Waiting"
ReasonSourceUnavailable = "SourceUnavailable"
ReasonSourceError = "SourceError"
DefaultRefresh = 30 * time.Second
)
type Source interface {
RelayStatus(ctx context.Context, ref string) (statusstate.RelayObservation, error)
}
var _ Source = (*statusstate.HTTPRelayHealthSource)(nil)
type Options struct {
Source Source
Scope func(workspace string) bool
Refresh time.Duration
}
type Controller struct {
source Source
refresh time.Duration
refs *binding.Table[struct{}]
}
func New(opts Options) *Controller {
return &Controller{source: opts.Source, refresh: ctlruntime.Period(opts.Refresh, DefaultRefresh), refs: binding.New[struct{}]()}
}
func Register(m *ctlruntime.Manager, opts Options) (*Controller, error) {
if err := m.AddToScheme(v1alpha1.AddToScheme); err != nil {
return nil, err
}
ctl := New(opts)
options := []ctlruntime.Option{ctlruntime.Export(Export), ctlruntime.Gone(ctl.gone),
ctlruntime.Watches(func(_ context.Context, src ctlruntime.Request, obj *v1alpha1.Relay) []ctlruntime.Request {
return ctl.users(binding.Key(src.Workspace, RelayKind, obj.Name))
})}
if opts.Scope != nil {
options = append(options, ctlruntime.InWorkspaces(opts.Scope))
}
if err := ctlruntime.For[*v1alpha1.RelayStatus](m, Name, ctl, options...); err != nil {
return nil, fmt.Errorf("relaystatus: registering the RelayStatus controller: %w", err)
}
return ctl, nil
}
func (c *Controller) Reconcile(ctx context.Context, req ctlruntime.Request, object *v1alpha1.RelayStatus) (ctlruntime.Result, error) {
target := binding.Target{Cluster: req.Cluster, Workspace: req.Workspace, Name: req.Name}
if !object.DeletionTimestamp.IsZero() {
c.refs.Set(target, nil)
return ctlruntime.Result{}, nil
}
generation := object.Generation
status := v1alpha1.RelayStatusStatus{ObservedGeneration: generation, Conditions: object.Status.Conditions}
relay := object.Spec.RelayRef
name := strings.TrimSpace(relay.Name)
if name == "" {
c.refs.Set(target, nil)
conds.Set(&status.Conditions, generation, ConditionReady, false, ReasonWaiting, "the RelayStatus needs a relayRef")
return ctlruntime.Result{}, c.apply(ctx, req, object, status)
}
c.refs.Set(target, &struct{}{}, binding.Key(relay.InWorkspace(req.Workspace), cmp.Or(strings.TrimSpace(relay.Kind), RelayKind), name))
if c.source == nil {
conds.Set(&status.Conditions, generation, ConditionReady, false, ReasonSourceUnavailable, "no relay source is configured")
return ctlruntime.Result{}, c.apply(ctx, req, object, status)
}
observation, err := c.source.RelayStatus(ctx, refString(relay))
if err != nil {
conds.Set(&status.Conditions, generation, ConditionReady, false, ReasonSourceError, "reading the relay status: "+err.Error())
return ctlruntime.Result{}, errors.Join(fmt.Errorf("relaystatus: reading %s: %w", refString(relay), err), c.apply(ctx, req, object, status))
}
status.Phase = cmp.Or(observation.Phase, v1alpha1.RelayStatusPhasePending)
status.Cursor = max(observation.Cursor, 0)
status.LastEventAt = observation.LastEventAt
status.Events = max(observation.Events, 0)
conds.Set(&status.Conditions, generation, ConditionReady, true, ReasonObserved, "the relay status is observed")
if err := c.apply(ctx, req, object, status); err != nil {
return ctlruntime.Result{}, err
}
return ctlruntime.RefreshAfter(c.refresh), nil
}
func (c *Controller) apply(ctx context.Context, req ctlruntime.Request, object *v1alpha1.RelayStatus, status v1alpha1.RelayStatusStatus) error {
next := object.DeepCopy()
next.Status = status
return req.ApplyStatus(ctx, next)
}
func (c *Controller) gone(_ context.Context, req ctlruntime.Request) {
c.refs.Set(binding.Target{Cluster: req.Cluster, Workspace: req.Workspace, Name: req.Name}, nil)
}
func (c *Controller) users(ref string) []ctlruntime.Request {
var out []ctlruntime.Request
for _, t := range c.refs.Users(ref) {
out = append(out, ctlruntime.Request{Cluster: t.Cluster, Workspace: t.Workspace, Name: t.Name})
}
return out
}
func refString(r commonv1.ObjectRef) string {
name := strings.TrimSpace(r.Name)
if kind := strings.TrimSpace(r.Kind); kind != "" {
return kind + "/" + name
}
return name
}
