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destroy topo by --prefix #34

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merged 1 commit into from
Sep 6, 2020
Merged

destroy topo by --prefix #34

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31 changes: 29 additions & 2 deletions cmd/destroy.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,10 @@ package cmd

import (
"context"
"fmt"

"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/srl-wim/container-lab/clab"
Expand All @@ -19,7 +22,31 @@ var destroyCmd = &cobra.Command{
if err != nil {
log.Fatal(err)
}

ctx, cancel := context.WithCancel(context.Background())
defer cancel()
if prefix != "" {
filter := filters.NewArgs()
filter.Add("label", fmt.Sprintf("containerlab=lab-%s", prefix))
containers, err := c.DockerClient.ContainerList(ctx, types.ContainerListOptions{
Filters: filter,
})
if err != nil {
log.Fatalf("could not list containers: %v", err)
}
var name string
for _, cont := range containers {
name = cont.ID
if len(cont.Names) > 0 {
name = cont.Names[0]
}
log.Infof("Removing container: %s", name)
err = c.DockerClient.ContainerRemove(ctx, cont.ID, types.ContainerRemoveOptions{})
if err != nil {
log.Errorf("could not remove container '%s': %v", name, err)
}
}
return
}
log.Info("Getting topology information ...")
if err = c.GetTopology(&topo); err != nil {
log.Fatal(err)
Expand All @@ -31,7 +58,6 @@ var destroyCmd = &cobra.Command{
log.Fatal(err)
}

ctx, cancel := context.WithCancel(context.Background())
defer cancel()

log.Info("Destroying container lab: ... ", topo)
Expand All @@ -58,4 +84,5 @@ var destroyCmd = &cobra.Command{
func init() {
rootCmd.AddCommand(destroyCmd)
destroyCmd.Flags().StringVarP(&topo, "topo", "t", "/etc/containerlab/lab-examples/wan-topo.yml", "path to the file with topology information")
destroyCmd.Flags().StringVarP(&prefix, "prefix", "p", "", "lab name prefix")
}