mirror of
https://github.com/fluxcd/flagger.git
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65 lines
2.4 KiB
Go
65 lines
2.4 KiB
Go
package canary
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import (
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"fmt"
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"time"
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appsv1 "k8s.io/api/apps/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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flaggerv1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1beta1"
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)
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// IsPrimaryReady checks the primary daemonset status and returns an error if
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// the daemonset is in the middle of a rolling update
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func (c *DaemonSetController) IsPrimaryReady(cd *flaggerv1.Canary) error {
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primaryName := fmt.Sprintf("%s-primary", cd.Spec.TargetRef.Name)
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primary, err := c.kubeClient.AppsV1().DaemonSets(cd.Namespace).Get(primaryName, metav1.GetOptions{})
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if err != nil {
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return fmt.Errorf("daemonset %s.%s get query error: %w", primaryName, cd.Namespace, err)
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}
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_, err = c.isDaemonSetReady(cd, primary)
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if err != nil {
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return fmt.Errorf("primary daemonset %s.%s not ready: %w", primaryName, cd.Namespace, err)
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}
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return nil
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}
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// IsCanaryReady checks the primary daemonset and returns an error if
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// the daemonset is in the middle of a rolling update
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func (c *DaemonSetController) IsCanaryReady(cd *flaggerv1.Canary) (bool, error) {
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targetName := cd.Spec.TargetRef.Name
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canary, err := c.kubeClient.AppsV1().DaemonSets(cd.Namespace).Get(targetName, metav1.GetOptions{})
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if err != nil {
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return true, fmt.Errorf("daemonset %s.%s get query error: %w", targetName, cd.Namespace, err)
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}
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retryable, err := c.isDaemonSetReady(cd, canary)
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if err != nil {
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return retryable, fmt.Errorf("canary damonset %s.%s not ready with retryable %v: %w",
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targetName, cd.Namespace, retryable, err)
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}
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return true, nil
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}
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// isDaemonSetReady determines if a daemonset is ready by checking the number of old version daemons
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func (c *DaemonSetController) isDaemonSetReady(cd *flaggerv1.Canary, daemonSet *appsv1.DaemonSet) (bool, error) {
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if diff := daemonSet.Status.DesiredNumberScheduled - daemonSet.Status.UpdatedNumberScheduled; diff > 0 || daemonSet.Status.NumberUnavailable > 0 {
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from := cd.Status.LastTransitionTime
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delta := time.Duration(cd.GetProgressDeadlineSeconds()) * time.Second
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dl := from.Add(delta)
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if dl.Before(time.Now()) {
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return false, fmt.Errorf("exceeded its progressDeadlineSeconds: %d", cd.GetProgressDeadlineSeconds())
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} else {
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return true, fmt.Errorf(
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"waiting for rollout to finish: desiredNumberScheduled=%d, updatedNumberScheduled=%d, numberUnavailable=%d",
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daemonSet.Status.DesiredNumberScheduled,
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daemonSet.Status.UpdatedNumberScheduled,
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daemonSet.Status.NumberUnavailable,
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)
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}
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}
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return true, nil
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}
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