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get_databases.go
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get_databases.go
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package schemaherokubectlcli
import (
"context"
"fmt"
"os"
"text/tabwriter"
databasesv1alpha4 "github.com/schemahero/schemahero/pkg/apis/databases/v1alpha4"
databasesclientv1alpha4 "github.com/schemahero/schemahero/pkg/client/schemaheroclientset/typed/databases/v1alpha4"
"github.com/schemahero/schemahero/pkg/config"
"github.com/spf13/cobra"
"github.com/spf13/viper"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
)
func GetDatabasesCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "databases",
Short: "",
Long: `...`,
SilenceErrors: true,
PreRun: func(cmd *cobra.Command, args []string) {
viper.BindPFlags(cmd.Flags())
},
RunE: func(cmd *cobra.Command, args []string) error {
ctx := context.Background()
cfg, err := config.GetRESTConfig()
if err != nil {
return err
}
client, err := kubernetes.NewForConfig(cfg)
if err != nil {
return err
}
databasesClient, err := databasesclientv1alpha4.NewForConfig(cfg)
if err != nil {
return err
}
namespaces, err := client.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
if err != nil {
return err
}
matchingDatabases := []databasesv1alpha4.Database{}
for _, namespace := range namespaces.Items {
databases, err := databasesClient.Databases(namespace.Name).List(ctx, metav1.ListOptions{})
if err != nil {
return err
}
matchingDatabases = append(matchingDatabases, databases.Items...)
}
if len(matchingDatabases) == 0 {
fmt.Println("No reosurces found.")
return nil
}
w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
fmt.Fprintln(w, "NAME\tNAMESPACE\tPENDING")
for _, database := range matchingDatabases {
fmt.Fprintln(w, fmt.Sprintf("%s\t%s\t%s", database.Name, database.Namespace, "0"))
}
w.Flush()
return nil
},
}
return cmd
}