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uninstall.go
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uninstall.go
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package operator
import (
"fmt"
"os"
"github.com/spf13/cobra"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
"github.com/calyptia/cli/k8s"
)
func NewCmdUninstall() *cobra.Command {
// Create a new default kubectl command and retrieve its flags
loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
configOverrides := &clientcmd.ConfigOverrides{}
cmd := &cobra.Command{
Use: "operator",
Aliases: []string{"opr"},
Short: "Uninstall operator components",
RunE: func(cmd *cobra.Command, args []string) error {
kctl := newKubectlCmd()
namespace := cmd.Flag("kube-namespace").Value.String()
kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides)
kubeClientConfig, err := kubeConfig.ClientConfig()
if err != nil {
return err
}
clientSet, err := kubernetes.NewForConfig(kubeClientConfig)
if err != nil {
return err
}
k := &k8s.Client{
Interface: clientSet,
}
exists, err := k.CheckOperatorInstalled(cmd.Context(), namespace)
if !exists || err != nil {
return fmt.Errorf("operator not installed in the namespace %s %s", namespace, err.Error())
}
// remove all pipelines
kctl.SetArgs([]string{"delete", "pipeline", "-A", "--all"})
err = kctl.Execute()
if err != nil {
return err
}
// remove all ingestchecks
kctl.SetArgs([]string{"delete", "ingestcheck", "-A", "--all"})
err = kctl.Execute()
if err != nil {
return err
}
yaml, err := prepareUninstallManifest(namespace)
if err != nil {
return err
}
kctl.SetArgs([]string{"delete", "-f", yaml})
err = kctl.Execute()
if err != nil {
return err
}
defer os.RemoveAll(yaml)
// when each Pipeline is create we ensure that there are appropriate RBAC setting for each.
// This will ensure that the respective ClusterRole, ClusterRoleBinding and ServiceAccount get wiped
if err := k.PurgeLeftoverRBAC(cmd.Context()); err != nil {
return err
}
cmd.Printf("Calyptia Operator uninstalled successfully.\n")
return nil
},
}
fs := cmd.Flags()
clientcmd.BindOverrideFlags(configOverrides, fs, clientcmd.RecommendedConfigOverrideFlags("kube-"))
return cmd
}
func prepareUninstallManifest(namespace string) (string, error) {
file, err := f.ReadFile(manifestFile)
if err != nil {
return "", err
}
fullFile := string(file)
var isNamespace bool
if namespace != "" {
isNamespace = true
}
solveNamespace := solveNamespaceCreation(isNamespace, fullFile, namespace)
withNamespace := injectNamespace(solveNamespace, namespace)
dir, err := os.MkdirTemp("", "calyptia-operator")
if err != nil {
return "", err
}
sysFile, err := os.CreateTemp(dir, "operator_*.yaml")
if err != nil {
return "", err
}
defer sysFile.Close()
_, err = sysFile.WriteString(withNamespace)
if err != nil {
return "", err
}
return sysFile.Name(), nil
}