90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
package dao
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import (
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"context"
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"errors"
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"fmt"
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"github.com/derailed/k9s/internal/client"
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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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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/kubectl/pkg/polymorphichelpers"
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)
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// Deployment represents a deployment K8s resource.
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type Deployment struct {
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Generic
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}
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var _ Accessor = (*Deployment)(nil)
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var _ Loggable = (*Deployment)(nil)
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var _ Restartable = (*Deployment)(nil)
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var _ Scalable = (*Deployment)(nil)
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// Scale a Deployment.
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func (d *Deployment) Scale(path string, replicas int32) error {
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ns, n := client.Namespaced(path)
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auth, err := d.Client().CanI(ns, "apps/v1/deployments:scale", []string{"get", "update"})
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if !auth || err != nil {
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return err
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}
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scale, err := d.Client().DialOrDie().AppsV1().Deployments(ns).GetScale(n, metav1.GetOptions{})
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if err != nil {
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return err
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}
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scale.Spec.Replicas = replicas
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_, err = d.Client().DialOrDie().AppsV1().Deployments(ns).UpdateScale(n, scale)
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return err
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}
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// Restart a Deployment rollout.
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func (d *Deployment) Restart(path string) error {
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o, err := d.Get(d.gvr.String(), path, true, labels.Everything())
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if err != nil {
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return err
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}
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var ds appsv1.Deployment
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err = runtime.DefaultUnstructuredConverter.FromUnstructured(o.(*unstructured.Unstructured).Object, &ds)
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if err != nil {
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return err
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}
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ns, _ := client.Namespaced(path)
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auth, err := d.Client().CanI(ns, "apps/v1/deployments", []string{"patch"})
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if !auth || err != nil {
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return err
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}
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update, err := polymorphichelpers.ObjectRestarterFn(&ds)
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if err != nil {
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return err
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}
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_, err = d.Client().DialOrDie().AppsV1().Deployments(ds.Namespace).Patch(ds.Name, types.StrategicMergePatchType, update)
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return err
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}
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// TailLogs tail logs for all pods represented by this Deployment.
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func (d *Deployment) TailLogs(ctx context.Context, c chan<- string, opts LogOptions) error {
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o, err := d.Get(d.gvr.String(), opts.Path, true, labels.Everything())
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if err != nil {
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return err
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}
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var dp appsv1.Deployment
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err = runtime.DefaultUnstructuredConverter.FromUnstructured(o.(*unstructured.Unstructured).Object, &dp)
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if err != nil {
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return errors.New("expecting Deployment resource")
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}
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if dp.Spec.Selector == nil || len(dp.Spec.Selector.MatchLabels) == 0 {
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return fmt.Errorf("No valid selector found on Deployment %s", opts.Path)
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}
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return podLogs(ctx, c, dp.Spec.Selector.MatchLabels, opts)
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}
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