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configuration.go
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configuration.go
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package resolvers
import (
"context"
"sort"
"strings"
"github.com/99designs/gqlgen/graphql"
"github.com/pkg/errors"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
extv1 "github.com/crossplane/crossplane/apis/apiextensions/v1"
pkgv1 "github.com/crossplane/crossplane/apis/pkg/v1"
"github.com/upbound/xgql/internal/auth"
"github.com/upbound/xgql/internal/graph/model"
)
const (
errListConfigRevs = "cannot list configuration revisions"
errGetXRD = "cannot get composite resource definition"
errGetComp = "cannot get composition"
)
type configuration struct {
clients ClientCache
}
func (r *configuration) Events(ctx context.Context, obj *model.Configuration) (*model.EventConnection, error) {
e := &events{clients: r.clients}
return e.Resolve(ctx, &corev1.ObjectReference{
APIVersion: obj.APIVersion,
Kind: obj.Kind,
Name: obj.Metadata.Name,
UID: types.UID(obj.Metadata.UID),
})
}
func (r *configuration) Revisions(ctx context.Context, obj *model.Configuration) (*model.ConfigurationRevisionConnection, error) {
ctx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
creds, _ := auth.FromContext(ctx)
c, err := r.clients.Get(creds)
if err != nil {
graphql.AddError(ctx, errors.Wrap(err, errGetClient))
return nil, nil
}
in := &pkgv1.ConfigurationRevisionList{}
if err := c.List(ctx, in); err != nil {
graphql.AddError(ctx, errors.Wrap(err, errListConfigRevs))
return nil, nil
}
out := &model.ConfigurationRevisionConnection{
Nodes: make([]model.ConfigurationRevision, 0),
}
for i := range in.Items {
cr := in.Items[i] // So we don't take the address of a range variable.
// We're not the controller reference of this ConfigurationRevision;
// it's not one of ours.
// https://github.com/kubernetes/community/blob/0331e/contributors/design-proposals/api-machinery/controller-ref.md
if c := metav1.GetControllerOf(&cr); c == nil || c.UID != types.UID(obj.Metadata.UID) {
continue
}
out.Nodes = append(out.Nodes, model.GetConfigurationRevision(&cr))
out.TotalCount++
}
sort.Stable(out)
return out, nil
}
func (r *configuration) ActiveRevision(ctx context.Context, obj *model.Configuration) (*model.ConfigurationRevision, error) {
ctx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
creds, _ := auth.FromContext(ctx)
c, err := r.clients.Get(creds)
if err != nil {
graphql.AddError(ctx, errors.Wrap(err, errGetClient))
return nil, nil
}
in := &pkgv1.ConfigurationRevisionList{}
if err := c.List(ctx, in); err != nil {
graphql.AddError(ctx, errors.Wrap(err, errListConfigRevs))
return nil, nil
}
for i := range in.Items {
cr := in.Items[i] // So we don't take the address of a range variable.
// This revision is not active.
if cr.Spec.DesiredState != pkgv1.PackageRevisionActive {
continue
}
// We're not the controller reference of this ConfigurationRevision;
// it's not one of ours.
// https://github.com/kubernetes/community/blob/0331e/contributors/design-proposals/api-machinery/controller-ref.md
if c := metav1.GetControllerOf(&cr); c == nil || c.UID != types.UID(obj.Metadata.UID) {
continue
}
out := model.GetConfigurationRevision(&cr)
return &out, nil
}
return nil, nil
}
type configurationRevision struct {
clients ClientCache
}
func (r *configurationRevision) Events(ctx context.Context, obj *model.ConfigurationRevision) (*model.EventConnection, error) {
e := &events{clients: r.clients}
return e.Resolve(ctx, &corev1.ObjectReference{
APIVersion: obj.APIVersion,
Kind: obj.Kind,
Name: obj.Metadata.Name,
UID: types.UID(obj.Metadata.UID),
})
}
type configurationRevisionStatus struct {
clients ClientCache
}
func (r *configurationRevisionStatus) Objects(ctx context.Context, obj *model.ConfigurationRevisionStatus) (*model.KubernetesResourceConnection, error) {
ctx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
creds, _ := auth.FromContext(ctx)
c, err := r.clients.Get(creds)
if err != nil {
graphql.AddError(ctx, errors.Wrap(err, errGetClient))
return nil, nil
}
out := &model.KubernetesResourceConnection{
Nodes: make([]model.KubernetesResource, 0, len(obj.ObjectRefs)),
}
for _, ref := range obj.ObjectRefs {
// Crossplane lints configuration packages to ensure they only contain XRDs and Compositions
// but this isn't enforced at the API level. We filter out anything that
// isn't a CRD, just in case.
if strings.Split(ref.APIVersion, "/")[0] != extv1.Group {
continue
}
switch ref.Kind {
case extv1.CompositeResourceDefinitionKind:
xrd := &extv1.CompositeResourceDefinition{}
if err := c.Get(ctx, types.NamespacedName{Name: ref.Name}, xrd); err != nil {
graphql.AddError(ctx, errors.Wrap(err, errGetXRD))
continue
}
out.Nodes = append(out.Nodes, model.GetCompositeResourceDefinition(xrd))
out.TotalCount++
case extv1.CompositionKind:
cmp := &extv1.Composition{}
if err := c.Get(ctx, types.NamespacedName{Name: ref.Name}, cmp); err != nil {
graphql.AddError(ctx, errors.Wrap(err, errGetComp))
continue
}
out.Nodes = append(out.Nodes, model.GetComposition(cmp))
out.TotalCount++
}
}
return out, nil
}