Implement create/delete for Helm releases
This commit is contained in:
stefanprodan
272
cmd/tk/create_helmrelease.go
Normal file
272
cmd/tk/create_helmrelease.go
Normal file
@@ -0,0 +1,272 @@
|
||||
/*
|
||||
Copyright 2020 The Flux CD contributors.
|
||||
|
||||
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 main
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
|
||||
"github.com/spf13/cobra"
|
||||
corev1 "k8s.io/api/core/v1"
|
||||
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
|
||||
"k8s.io/apimachinery/pkg/api/errors"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apimachinery/pkg/types"
|
||||
"k8s.io/apimachinery/pkg/util/wait"
|
||||
"sigs.k8s.io/controller-runtime/pkg/client"
|
||||
"sigs.k8s.io/yaml"
|
||||
|
||||
helmv2 "github.com/fluxcd/helm-controller/api/v2alpha1"
|
||||
sourcev1 "github.com/fluxcd/source-controller/api/v1alpha1"
|
||||
)
|
||||
|
||||
var createHelmReleaseCmd = &cobra.Command{
|
||||
Use: "helmrelease [name]",
|
||||
Aliases: []string{"hr"},
|
||||
Short: "Create or update a HelmRelease resource",
|
||||
Long: "The helmrelease create command generates a HelmRelease resource for a given HelmRepository source.",
|
||||
Example: ` # Create a HelmRelease from a source
|
||||
tk create hr podinfo \
|
||||
--interval=10m \
|
||||
--target-namespace=default \
|
||||
--source=podinfo \
|
||||
--chart-name=podinfo \
|
||||
--chart-version=">4.0.0"
|
||||
|
||||
# Create a HelmRelease with values for a local YAML file
|
||||
tk create hr podinfo \
|
||||
--target-namespace=default \
|
||||
--source=podinfo \
|
||||
--chart-name=podinfo \
|
||||
--chart-version=4.0.5 \
|
||||
--values=./my-values.yaml
|
||||
|
||||
# Create a HelmRelease definition on disk without applying it on the cluster
|
||||
tk create hr podinfo \
|
||||
--target-namespace=default \
|
||||
--source=podinfo \
|
||||
--chart-name=podinfo \
|
||||
--chart-version=4.0.5 \
|
||||
--values=./values.yaml \
|
||||
--export > podinfo-release.yaml
|
||||
`,
|
||||
RunE: createHelmReleaseCmdRun,
|
||||
}
|
||||
|
||||
var (
|
||||
hrSource string
|
||||
hrDependsOn []string
|
||||
hrChartName string
|
||||
hrChartVersion string
|
||||
hrTargetNamespace string
|
||||
hrValuesFile string
|
||||
)
|
||||
|
||||
func init() {
|
||||
createHelmReleaseCmd.Flags().StringVar(&hrSource, "source", "", "HelmRepository name")
|
||||
createHelmReleaseCmd.Flags().StringVar(&hrChartName, "chart-name", "", "Helm chart name")
|
||||
createHelmReleaseCmd.Flags().StringVar(&hrChartVersion, "chart-version", "", "Helm chart version, accepts semver range")
|
||||
createHelmReleaseCmd.Flags().StringArrayVar(&hrDependsOn, "depends-on", nil, "HelmReleases that must be ready before this release can be installed")
|
||||
createHelmReleaseCmd.Flags().StringVar(&hrTargetNamespace, "target-namespace", "", "namespace to install this release, defaults to the HelmRelease namespace")
|
||||
createHelmReleaseCmd.Flags().StringVar(&hrValuesFile, "values", "", "local path to the values.yaml file")
|
||||
createCmd.AddCommand(createHelmReleaseCmd)
|
||||
}
|
||||
|
||||
func createHelmReleaseCmdRun(cmd *cobra.Command, args []string) error {
|
||||
if len(args) < 1 {
|
||||
return fmt.Errorf("release name is required")
|
||||
}
|
||||
name := args[0]
|
||||
|
||||
if hrSource == "" {
|
||||
return fmt.Errorf("source is required")
|
||||
}
|
||||
if hrChartName == "" {
|
||||
return fmt.Errorf("chart name is required")
|
||||
}
|
||||
if hrChartVersion == "" {
|
||||
return fmt.Errorf("chart version is required")
|
||||
}
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), timeout)
|
||||
defer cancel()
|
||||
|
||||
kubeClient, err := utils.kubeClient(kubeconfig)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if !export {
|
||||
logger.Generatef("generating release")
|
||||
}
|
||||
|
||||
helmRelease := helmv2.HelmRelease{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: name,
|
||||
Namespace: namespace,
|
||||
},
|
||||
Spec: helmv2.HelmReleaseSpec{
|
||||
DependsOn: hrDependsOn,
|
||||
Interval: metav1.Duration{
|
||||
Duration: interval,
|
||||
},
|
||||
TargetNamespace: hrTargetNamespace,
|
||||
Chart: helmv2.HelmChartTemplate{
|
||||
Name: hrChartName,
|
||||
Version: hrChartVersion,
|
||||
SourceRef: helmv2.CrossNamespaceObjectReference{
|
||||
Kind: sourcev1.HelmRepositoryKind,
|
||||
Name: hrSource,
|
||||
},
|
||||
},
|
||||
Suspend: false,
|
||||
},
|
||||
}
|
||||
|
||||
if hrValuesFile != "" {
|
||||
data, err := ioutil.ReadFile(hrValuesFile)
|
||||
if err != nil {
|
||||
return fmt.Errorf("reading values from %s failed: %w", hrValuesFile, err)
|
||||
}
|
||||
|
||||
json, err := yaml.YAMLToJSON(data)
|
||||
if err != nil {
|
||||
return fmt.Errorf("converting values to JSON from %s failed: %w", hrValuesFile, err)
|
||||
}
|
||||
|
||||
helmRelease.Spec.Values = apiextensionsv1.JSON{Raw: json}
|
||||
}
|
||||
|
||||
if export {
|
||||
return exportHelmRelease(helmRelease)
|
||||
}
|
||||
|
||||
logger.Actionf("applying release")
|
||||
if err := upsertHelmRelease(ctx, kubeClient, helmRelease); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
logger.Waitingf("waiting for reconciliation")
|
||||
chartName := fmt.Sprintf("%s-%s", namespace, name)
|
||||
if err := wait.PollImmediate(pollInterval, timeout,
|
||||
isHelmChartReady(ctx, kubeClient, chartName, namespace)); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := wait.PollImmediate(pollInterval, timeout,
|
||||
isHelmReleaseReady(ctx, kubeClient, name, namespace)); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
logger.Successf("release %s is ready", name)
|
||||
|
||||
namespacedName := types.NamespacedName{
|
||||
Namespace: namespace,
|
||||
Name: name,
|
||||
}
|
||||
err = kubeClient.Get(ctx, namespacedName, &helmRelease)
|
||||
if err != nil {
|
||||
return fmt.Errorf("release failed: %w", err)
|
||||
}
|
||||
|
||||
if helmRelease.Status.LastAppliedRevision != "" {
|
||||
logger.Successf("applied revision %s", helmRelease.Status.LastAppliedRevision)
|
||||
} else {
|
||||
return fmt.Errorf("reconciliation failed")
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func upsertHelmRelease(ctx context.Context, kubeClient client.Client, helmRelease helmv2.HelmRelease) error {
|
||||
namespacedName := types.NamespacedName{
|
||||
Namespace: helmRelease.GetNamespace(),
|
||||
Name: helmRelease.GetName(),
|
||||
}
|
||||
|
||||
var existing helmv2.HelmRelease
|
||||
err := kubeClient.Get(ctx, namespacedName, &existing)
|
||||
if err != nil {
|
||||
if errors.IsNotFound(err) {
|
||||
if err := kubeClient.Create(ctx, &helmRelease); err != nil {
|
||||
return err
|
||||
} else {
|
||||
logger.Successf("release created")
|
||||
return nil
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
existing.Spec = helmRelease.Spec
|
||||
if err := kubeClient.Update(ctx, &existing); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
logger.Successf("release updated")
|
||||
return nil
|
||||
}
|
||||
|
||||
func exportHelmRelease(helmRelease helmv2.HelmRelease) error {
|
||||
gvk := helmv2.GroupVersion.WithKind(helmv2.HelmReleaseKind)
|
||||
export := helmv2.HelmRelease{
|
||||
TypeMeta: metav1.TypeMeta{
|
||||
Kind: gvk.Kind,
|
||||
APIVersion: gvk.GroupVersion().String(),
|
||||
},
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: helmRelease.Name,
|
||||
Namespace: helmRelease.Namespace,
|
||||
},
|
||||
Spec: helmRelease.Spec,
|
||||
}
|
||||
|
||||
data, err := yaml.Marshal(export)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
fmt.Println("---")
|
||||
fmt.Println(string(data))
|
||||
return nil
|
||||
}
|
||||
|
||||
func isHelmChartReady(ctx context.Context, kubeClient client.Client, name, namespace string) wait.ConditionFunc {
|
||||
return func() (bool, error) {
|
||||
var helmChart sourcev1.HelmChart
|
||||
namespacedName := types.NamespacedName{
|
||||
Namespace: namespace,
|
||||
Name: name,
|
||||
}
|
||||
|
||||
err := kubeClient.Get(ctx, namespacedName, &helmChart)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
|
||||
for _, condition := range helmChart.Status.Conditions {
|
||||
if condition.Type == helmv2.ReadyCondition {
|
||||
if condition.Status == corev1.ConditionTrue {
|
||||
return true, nil
|
||||
} else if condition.Status == corev1.ConditionFalse {
|
||||
return false, fmt.Errorf(condition.Message)
|
||||
}
|
||||
}
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
}
|
||||
91
cmd/tk/delete_helmrelease.go
Normal file
91
cmd/tk/delete_helmrelease.go
Normal file
@@ -0,0 +1,91 @@
|
||||
/*
|
||||
Copyright 2020 The Flux CD contributors.
|
||||
|
||||
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 main
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
|
||||
"github.com/manifoldco/promptui"
|
||||
"github.com/spf13/cobra"
|
||||
"k8s.io/apimachinery/pkg/types"
|
||||
|
||||
helmv2 "github.com/fluxcd/helm-controller/api/v2alpha1"
|
||||
)
|
||||
|
||||
var deleteHelmReleaseCmd = &cobra.Command{
|
||||
Use: "helmrelease [name]",
|
||||
Aliases: []string{"hr"},
|
||||
Short: "Delete a HelmRelease resource",
|
||||
Long: "The delete helmrelease command removes the given HelmRelease from the cluster.",
|
||||
Example: ` # Delete a Helm release and the Kubernetes resources created by it
|
||||
tk delete hr podinfo
|
||||
`,
|
||||
RunE: deleteHelmReleaseCmdRun,
|
||||
}
|
||||
|
||||
func init() {
|
||||
deleteCmd.AddCommand(deleteHelmReleaseCmd)
|
||||
}
|
||||
|
||||
func deleteHelmReleaseCmdRun(cmd *cobra.Command, args []string) error {
|
||||
if len(args) < 1 {
|
||||
return fmt.Errorf("release name is required")
|
||||
}
|
||||
name := args[0]
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), timeout)
|
||||
defer cancel()
|
||||
|
||||
kubeClient, err := utils.kubeClient(kubeconfig)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
namespacedName := types.NamespacedName{
|
||||
Namespace: namespace,
|
||||
Name: name,
|
||||
}
|
||||
|
||||
var helmRelease helmv2.HelmRelease
|
||||
err = kubeClient.Get(ctx, namespacedName, &helmRelease)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if !deleteSilent {
|
||||
if !helmRelease.Spec.Suspend {
|
||||
logger.Waitingf("This action will remove the Kubernetes objects previously applied by the %s Helm release!", name)
|
||||
}
|
||||
prompt := promptui.Prompt{
|
||||
Label: "Are you sure you want to delete this Helm release",
|
||||
IsConfirm: true,
|
||||
}
|
||||
if _, err := prompt.Run(); err != nil {
|
||||
return fmt.Errorf("aborting")
|
||||
}
|
||||
}
|
||||
|
||||
logger.Actionf("deleting release %s in %s namespace", name, namespace)
|
||||
err = kubeClient.Delete(ctx, &helmRelease)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
logger.Successf("release deleted")
|
||||
|
||||
return nil
|
||||
}
|
||||
@@ -26,12 +26,14 @@ import (
|
||||
"os/exec"
|
||||
"text/template"
|
||||
|
||||
kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1alpha1"
|
||||
sourcev1 "github.com/fluxcd/source-controller/api/v1alpha1"
|
||||
corev1 "k8s.io/api/core/v1"
|
||||
"k8s.io/apimachinery/pkg/runtime"
|
||||
"k8s.io/client-go/tools/clientcmd"
|
||||
"sigs.k8s.io/controller-runtime/pkg/client"
|
||||
|
||||
helmv2 "github.com/fluxcd/helm-controller/api/v2alpha1"
|
||||
kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1alpha1"
|
||||
sourcev1 "github.com/fluxcd/source-controller/api/v1alpha1"
|
||||
)
|
||||
|
||||
type Utils struct {
|
||||
@@ -118,6 +120,7 @@ func (*Utils) kubeClient(config string) (client.Client, error) {
|
||||
_ = corev1.AddToScheme(scheme)
|
||||
_ = sourcev1.AddToScheme(scheme)
|
||||
_ = kustomizev1.AddToScheme(scheme)
|
||||
_ = helmv2.AddToScheme(scheme)
|
||||
|
||||
kubeClient, err := client.New(cfg, client.Options{
|
||||
Scheme: scheme,
|
||||
|
||||
Reference in New Issue
Block a user