k9s/internal/dao/helm_history.go

137 lines
2.9 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package dao
import (
"context"
"fmt"
"strconv"
"github.com/derailed/k9s/internal"
"github.com/derailed/k9s/internal/client"
"github.com/derailed/k9s/internal/render/helm"
"helm.sh/helm/v3/pkg/action"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
)
var (
_ Accessor = (*HelmHistory)(nil)
_ Nuker = (*HelmHistory)(nil)
_ Describer = (*HelmHistory)(nil)
)
// HelmHistory represents a helm chart.
type HelmHistory struct {
NonResource
}
// List returns a collection of resources.
func (h *HelmHistory) List(ctx context.Context, _ string) ([]runtime.Object, error) {
path, ok := ctx.Value(internal.KeyFQN).(string)
if !ok {
return nil, fmt.Errorf("expecting FQN in context")
}
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return nil, err
}
hh, err := action.NewHistory(cfg).Run(n)
if err != nil {
return nil, err
}
oo := make([]runtime.Object, 0, len(hh))
for _, r := range hh {
oo = append(oo, helm.ReleaseRes{Release: r})
}
return oo, nil
}
// Get returns a resource.
func (h *HelmHistory) Get(_ context.Context, path string) (runtime.Object, error) {
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return nil, err
}
resp, err := action.NewGet(cfg).Run(n)
if err != nil {
return nil, err
}
return helm.ReleaseRes{Release: resp}, nil
}
// Describe returns the chart notes.
func (h *HelmHistory) Describe(path string) (string, error) {
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return "", err
}
resp, err := action.NewGet(cfg).Run(n)
if err != nil {
return "", err
}
return resp.Info.Notes, nil
}
// ToYAML returns the chart manifest.
func (h *HelmHistory) ToYAML(path string, showManaged bool) (string, error) {
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return "", err
}
resp, err := action.NewGet(cfg).Run(n)
if err != nil {
return "", err
}
return resp.Manifest, nil
}
func (h *HelmHistory) Rollback(_ context.Context, path, rev string) error {
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return err
}
ver, err := strconv.Atoi(rev)
if err != nil {
return fmt.Errorf("could not convert revision to a number: %w", err)
}
client := action.NewRollback(cfg)
client.Version = ver
return client.Run(n)
}
// Delete uninstall a Helm.
func (h *HelmHistory) Delete(_ context.Context, path string, _ *metav1.DeletionPropagation, _ Grace) error {
ns, n := client.Namespaced(path)
cfg, err := ensureHelmConfig(h.Client(), ns)
if err != nil {
return err
}
res, err := action.NewUninstall(cfg).Run(n)
if err != nil {
return err
}
if res != nil && res.Info != "" {
return fmt.Errorf("%s", res.Info)
}
return nil
}