forked from cisco-open/operator-tools
/
conditions.go
100 lines (84 loc) · 2.8 KB
/
conditions.go
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// Copyright © 2020 Banzai Cloud
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package reconciler
import (
"time"
"github.com/go-logr/logr"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/pb82/operator-tools/pkg/wait"
)
var DefaultBackoff = wait.Backoff{
Duration: time.Second * 5,
Factor: 1,
Jitter: 0,
Steps: 12,
}
type ConditionType string
type ObjectKeyWithGVK struct {
ObjectKey client.ObjectKey `json:"objectKey,omitempty"`
GVK schema.GroupVersionKind `json:"gvk,omitempty"`
}
type ResourceCondition struct {
ID string `json:"id,omitempty"`
Description string `json:"shortDescription,omitempty"`
Checks []wait.ResourceConditionCheck `json:"checks,omitempty"`
CustomChecks []wait.CustomResourceConditionCheck `json:"customChecks,omitempty"`
Object *ObjectKeyWithGVK `json:"object,omitempty"`
}
type ConditionChecker struct {
client client.Client
scheme *runtime.Scheme
log logr.Logger
}
func NewConditionChecker(client client.Client, scheme *runtime.Scheme, log logr.Logger) *ConditionChecker {
return &ConditionChecker{
client: client,
scheme: scheme,
log: log,
}
}
func (c *ConditionChecker) CheckResourceConditions(conditions []ResourceCondition, backoff *wait.Backoff) error {
if backoff == nil {
backoff = &DefaultBackoff
}
log := c.log.WithName("pre-checks")
checks := wait.NewResourceConditionChecks(c.client, *backoff, log, c.scheme)
log.Info("checking resource pre-conditions")
for _, condition := range conditions {
if condition.Object != nil && len(condition.Checks) > 0 {
o, err := c.scheme.New(condition.Object.GVK)
if err != nil {
return err
}
if mo, ok := o.(metav1.Object); ok {
mo.SetName(condition.Object.ObjectKey.Name)
mo.SetNamespace(condition.Object.ObjectKey.Namespace)
}
err = checks.WaitForResources(condition.ID, []runtime.Object{o}, condition.Checks...)
if err != nil {
return err
}
}
if len(condition.CustomChecks) > 0 {
err := checks.WaitForCustomConditionChecks(condition.ID, condition.CustomChecks...)
if err != nil {
return err
}
}
}
return nil
}