-
Notifications
You must be signed in to change notification settings - Fork 296
/
reconciler.go
182 lines (153 loc) · 5.48 KB
/
reconciler.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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
package extension
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"sync"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/builder"
"sigs.k8s.io/controller-runtime/pkg/client"
ctrlclient "sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
"github.com/tilt-dev/tilt/internal/analytics"
"github.com/tilt-dev/tilt/internal/controllers/apicmp"
"github.com/tilt-dev/tilt/internal/controllers/indexer"
"github.com/tilt-dev/tilt/internal/ospath"
"github.com/tilt-dev/tilt/pkg/apis/core/v1alpha1"
"github.com/tilt-dev/tilt/pkg/logger"
)
type Reconciler struct {
ctrlClient ctrlclient.Client
indexer *indexer.Indexer
mu sync.Mutex
analytics *analytics.TiltAnalytics
}
func (r *Reconciler) CreateBuilder(mgr ctrl.Manager) (*builder.Builder, error) {
b := ctrl.NewControllerManagedBy(mgr).
For(&v1alpha1.Extension{}).
Watches(&source.Kind{Type: &v1alpha1.ExtensionRepo{}},
handler.EnqueueRequestsFromMapFunc(r.indexer.Enqueue))
return b, nil
}
func NewReconciler(ctrlClient ctrlclient.Client, scheme *runtime.Scheme, analytics *analytics.TiltAnalytics) *Reconciler {
return &Reconciler{
ctrlClient: ctrlClient,
indexer: indexer.NewIndexer(scheme, indexExtension),
analytics: analytics,
}
}
// Verifies extension paths.
func (r *Reconciler) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
r.mu.Lock()
defer r.mu.Unlock()
nn := request.NamespacedName
var ext v1alpha1.Extension
err := r.ctrlClient.Get(ctx, nn, &ext)
r.indexer.OnReconcile(nn, &ext)
if err != nil && !apierrors.IsNotFound(err) {
return ctrl.Result{}, err
}
// Cleanup tiltfile loads if an extension is deleted.
if apierrors.IsNotFound(err) || !ext.ObjectMeta.DeletionTimestamp.IsZero() {
err := r.manageOwnedTiltfile(ctx, nn, nil)
if err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{}, nil
}
var repo v1alpha1.ExtensionRepo
err = r.ctrlClient.Get(ctx, types.NamespacedName{Name: ext.Spec.RepoName}, &repo)
if err != nil && !apierrors.IsNotFound(err) {
return ctrl.Result{}, err
}
newStatus := r.apply(&ext, &repo)
update, changed, err := r.maybeUpdateStatus(ctx, &ext, newStatus)
if err != nil {
return ctrl.Result{}, err
}
// Always manage the child objects, even if the user-visible status didn't change,
// because there might be internal state we need to propagate.
err = r.manageOwnedTiltfile(ctx, types.NamespacedName{Name: ext.Name}, update)
if err != nil {
return ctrl.Result{}, err
}
if changed && update.Status.Error == "" {
repoType := "http"
if strings.HasPrefix(repo.Spec.URL, "file://") {
repoType = "file"
}
r.analytics.Incr("api.extension.load", map[string]string{
"ext_path": ext.Spec.RepoPath,
"repo_url_hash": analytics.HashSHA1(repo.Spec.URL),
"repo_type": repoType,
})
}
return ctrl.Result{}, nil
}
// Reconciles the extension without reading or writing from the API server.
// Returns the resolved status.
// Exposed for outside callers.
func (r *Reconciler) ForceApply(ext *v1alpha1.Extension, repo *v1alpha1.ExtensionRepo) v1alpha1.ExtensionStatus {
r.mu.Lock()
defer r.mu.Unlock()
return r.apply(ext, repo)
}
func (r *Reconciler) apply(ext *v1alpha1.Extension, repo *v1alpha1.ExtensionRepo) v1alpha1.ExtensionStatus {
if repo.Name == "" {
return v1alpha1.ExtensionStatus{Error: fmt.Sprintf("extension repo not found: %s", ext.Spec.RepoName)}
}
if repo.Status.Path == "" {
return v1alpha1.ExtensionStatus{Error: fmt.Sprintf("extension repo not loaded: %s", ext.Spec.RepoName)}
}
absPath := filepath.Join(repo.Status.Path, ext.Spec.RepoPath, "Tiltfile")
// Make sure the user isn't trying to use path tricks to "escape" the repo.
if !ospath.IsChild(repo.Status.Path, absPath) {
return v1alpha1.ExtensionStatus{Error: fmt.Sprintf("invalid repo path: %s", ext.Spec.RepoPath)}
}
info, err := os.Stat(absPath)
if err != nil || !info.Mode().IsRegular() {
return v1alpha1.ExtensionStatus{Error: fmt.Sprintf("no extension tiltfile found at %s", absPath)}
}
return v1alpha1.ExtensionStatus{Path: absPath}
}
// Update the status. Returns true if the status changed.
func (r *Reconciler) maybeUpdateStatus(ctx context.Context, obj *v1alpha1.Extension, newStatus v1alpha1.ExtensionStatus) (*v1alpha1.Extension, bool, error) {
if apicmp.DeepEqual(obj.Status, newStatus) {
return obj, false, nil
}
oldError := obj.Status.Error
newError := newStatus.Error
update := obj.DeepCopy()
update.Status = *(newStatus.DeepCopy())
err := r.ctrlClient.Status().Update(ctx, update)
if err != nil {
return obj, false, err
}
isLoggedError := newError != "" &&
!strings.HasPrefix(newError, "extension repo not loaded") &&
!strings.HasPrefix(newError, "extension repo not found")
if isLoggedError && oldError != newError {
logger.Get(ctx).Errorf("extension %s: %s", obj.Name, newError)
}
return update, true, err
}
// Find all the objects we need to watch based on the extension spec.
func indexExtension(obj client.Object) []indexer.Key {
result := []indexer.Key{}
ext := obj.(*v1alpha1.Extension)
if ext.Spec.RepoName != "" {
repoGVK := v1alpha1.SchemeGroupVersion.WithKind("ExtensionRepo")
result = append(result, indexer.Key{
Name: types.NamespacedName{Name: ext.Spec.RepoName},
GVK: repoGVK,
})
}
return result
}