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delete_tasks.go
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delete_tasks.go
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package manager
import (
"fmt"
"github.com/aws/aws-sdk-go/service/cloudformation"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
iamoidc "github.com/weaveworks/eksctl/pkg/iam/oidc"
"github.com/weaveworks/eksctl/pkg/kubernetes"
)
func deleteAll(_ string) bool { return true }
// NewTasksToDeleteClusterWithNodeGroups defines tasks required to delete the given cluster along with all of its resources
func (c *StackCollection) NewTasksToDeleteClusterWithNodeGroups(deleteOIDCProvider bool, oidc *iamoidc.OpenIDConnectManager, clientSetGetter kubernetes.ClientSetGetter, wait bool, cleanup func(chan error, string) error) (*TaskTree, error) {
tasks := &TaskTree{Parallel: false}
nodeGroupTasks, err := c.NewTasksToDeleteNodeGroups(deleteAll, true, cleanup)
if err != nil {
return nil, err
}
if nodeGroupTasks.Len() > 0 {
nodeGroupTasks.IsSubTask = true
tasks.Append(nodeGroupTasks)
}
if deleteOIDCProvider {
serviceAccountAndOIDCTasks, err := c.NewTasksToDeleteOIDCProviderWithIAMServiceAccounts(oidc, clientSetGetter)
if err != nil {
return nil, err
}
if serviceAccountAndOIDCTasks.Len() > 0 {
serviceAccountAndOIDCTasks.IsSubTask = true
tasks.Append(serviceAccountAndOIDCTasks)
}
}
clusterStack, err := c.DescribeClusterStack()
if err != nil {
return nil, err
}
info := fmt.Sprintf("delete cluster control plane %q", c.spec.Metadata.Name)
if wait {
tasks.Append(&taskWithStackSpec{
info: info,
stack: clusterStack,
call: c.DeleteStackBySpecSync,
})
} else {
tasks.Append(&asyncTaskWithStackSpec{
info: info,
stack: clusterStack,
call: c.DeleteStackBySpec,
})
}
return tasks, nil
}
// NewTasksToDeleteNodeGroups defines tasks required to delete all of the nodegroups
func (c *StackCollection) NewTasksToDeleteNodeGroups(shouldDelete func(string) bool, wait bool, cleanup func(chan error, string) error) (*TaskTree, error) {
nodeGroupStacks, err := c.DescribeNodeGroupStacks()
if err != nil {
return nil, err
}
tasks := &TaskTree{Parallel: true}
for _, s := range nodeGroupStacks {
name := c.GetNodeGroupName(s)
if !shouldDelete(name) {
continue
}
if *s.StackStatus == cloudformation.StackStatusDeleteFailed && cleanup != nil {
tasks.Append(&taskWithNameParam{
info: fmt.Sprintf("cleanup for nodegroup %q", name),
call: cleanup,
})
}
info := fmt.Sprintf("delete nodegroup %q", name)
if wait {
tasks.Append(&taskWithStackSpec{
info: info,
stack: s,
call: c.DeleteStackBySpecSync,
})
} else {
tasks.Append(&asyncTaskWithStackSpec{
info: info,
stack: s,
call: c.DeleteStackBySpec,
})
}
}
return tasks, nil
}
// NewTasksToDeleteOIDCProviderWithIAMServiceAccounts defines tasks required to delete all of the iamserviceaccounts
// along with associated IAM ODIC provider
func (c *StackCollection) NewTasksToDeleteOIDCProviderWithIAMServiceAccounts(oidc *iamoidc.OpenIDConnectManager, clientSetGetter kubernetes.ClientSetGetter) (*TaskTree, error) {
tasks := &TaskTree{Parallel: false}
saTasks, err := c.NewTasksToDeleteIAMServiceAccounts(deleteAll, clientSetGetter, true)
if err != nil {
return nil, err
}
if saTasks.Len() > 0 {
saTasks.IsSubTask = true
tasks.Append(saTasks)
}
providerExists, err := oidc.CheckProviderExists()
if err != nil {
return nil, err
}
if providerExists {
tasks.Append(&asyncTaskWithoutParams{
info: "delete IAM OIDC provider",
call: oidc.DeleteProvider,
})
}
return tasks, nil
}
// NewTasksToDeleteIAMServiceAccounts defines tasks required to delete all of the iamserviceaccounts
func (c *StackCollection) NewTasksToDeleteIAMServiceAccounts(shouldDelete func(string) bool, clientSetGetter kubernetes.ClientSetGetter, wait bool) (*TaskTree, error) {
serviceAccountStacks, err := c.DescribeIAMServiceAccountStacks()
if err != nil {
return nil, err
}
tasks := &TaskTree{Parallel: true}
for _, s := range serviceAccountStacks {
saTasks := &TaskTree{
Parallel: false,
IsSubTask: true,
}
name := c.GetIAMServiceAccountName(s)
if !shouldDelete(name) {
continue
}
info := fmt.Sprintf("delete IAM role for serviceaccount %q", name)
if wait {
saTasks.Append(&taskWithStackSpec{
info: info,
stack: s,
call: c.DeleteStackBySpecSync,
})
} else {
saTasks.Append(&asyncTaskWithStackSpec{
info: info,
stack: s,
call: c.DeleteStackBySpec,
})
}
saTasks.Append(&kubernetesTask{
info: fmt.Sprintf("delete serviceaccount %q", name),
kubernetes: clientSetGetter,
call: func(clientSet kubernetes.Interface) error {
meta, err := api.ClusterIAMServiceAccountNameStringToClusterIAMMeta(name)
if err != nil {
return err
}
return kubernetes.MaybeDeleteServiceAccount(clientSet, meta.AsObjectMeta())
},
})
tasks.Append(saTasks)
}
return tasks, nil
}