forked from cilium/cilium
/
prefilter_list.go
66 lines (57 loc) · 1.62 KB
/
prefilter_list.go
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// Copyright 2017 Authors of Cilium
//
// 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 cmd
import (
"fmt"
"os"
"text/tabwriter"
"github.com/cilium/cilium/pkg/command"
"github.com/spf13/cobra"
)
var preFilterListCmd = &cobra.Command{
Use: "list",
Aliases: []string{"ls"},
Short: "List CIDR filters",
Run: func(cmd *cobra.Command, args []string) {
listFilters(cmd, args)
},
}
func init() {
preFilterCmd.AddCommand(preFilterListCmd)
command.AddJSONOutput(preFilterListCmd)
}
func listFilters(cmd *cobra.Command, args []string) {
var str string
spec, err := client.GetPrefilter()
if err != nil {
Fatalf("Cannot get CIDR list: %s", err)
}
if command.OutputJSON() {
if err := command.PrintOutput(spec); err != nil {
os.Exit(1)
}
return
}
if spec.Status == nil || spec.Status.Realized == nil {
Fatalf("Cannot get CIDR list: empty response")
}
w := tabwriter.NewWriter(os.Stdout, 5, 0, 3, ' ', 0)
str = fmt.Sprintf("Revision: %d", spec.Status.Realized.Revision)
fmt.Fprintln(w, str)
for _, pfx := range spec.Status.Realized.Deny {
str = fmt.Sprintf("%s", pfx)
fmt.Fprintln(w, str)
}
w.Flush()
}