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authorbaude <bbaude@redhat.com>2021-02-04 12:58:55 -0600
committerbaude <bbaude@redhat.com>2021-02-06 07:37:29 -0600
commit91ea3fabd625a891487cd0d9b130ac71366ecb74 (patch)
treec281268da8fd605a19006725d9ecda97d9bab988 /cmd/podman/networks
parentc421127dd7f700829a8e5265d8ddad102061bebc (diff)
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add network prune
add the ability to prune unused cni networks. filters are not implemented but included both compat and podman api endpoints. Fixes :#8673 Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'cmd/podman/networks')
-rw-r--r--cmd/podman/networks/prune.go82
1 files changed, 82 insertions, 0 deletions
diff --git a/cmd/podman/networks/prune.go b/cmd/podman/networks/prune.go
new file mode 100644
index 000000000..d6c7d3a7f
--- /dev/null
+++ b/cmd/podman/networks/prune.go
@@ -0,0 +1,82 @@
+package network
+
+import (
+ "bufio"
+ "fmt"
+ "os"
+ "strings"
+
+ "github.com/containers/podman/v2/cmd/podman/common"
+ "github.com/containers/podman/v2/cmd/podman/registry"
+ "github.com/containers/podman/v2/cmd/podman/utils"
+ "github.com/containers/podman/v2/cmd/podman/validate"
+ "github.com/containers/podman/v2/pkg/domain/entities"
+ "github.com/spf13/cobra"
+ "github.com/spf13/pflag"
+)
+
+var (
+ networkPruneDescription = `Prune unused networks`
+ networkPruneCommand = &cobra.Command{
+ Use: "prune [options]",
+ Short: "network prune",
+ Long: networkPruneDescription,
+ RunE: networkPrune,
+ Example: `podman network prune`,
+ Args: validate.NoArgs,
+ ValidArgsFunction: common.AutocompleteNetworks,
+ }
+)
+
+var (
+ networkPruneOptions entities.NetworkPruneOptions
+ force bool
+)
+
+func networkPruneFlags(flags *pflag.FlagSet) {
+ //TODO: Not implemented but for future reference
+ //flags.StringSliceVar(&networkPruneOptions.Filters,"filters", []string{}, "provide filter values (e.g. 'until=<timestamp>')")
+ flags.BoolVarP(&force, "force", "f", false, "do not prompt for confirmation")
+}
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+ Command: networkPruneCommand,
+ Parent: networkCmd,
+ })
+ flags := networkPruneCommand.Flags()
+ networkPruneFlags(flags)
+}
+
+func networkPrune(cmd *cobra.Command, _ []string) error {
+ var (
+ errs utils.OutputErrors
+ )
+ if !force {
+ reader := bufio.NewReader(os.Stdin)
+ fmt.Println("WARNING! This will remove all networks not used by at least one container.")
+ fmt.Print("Are you sure you want to continue? [y/N] ")
+ answer, err := reader.ReadString('\n')
+ if err != nil {
+ return err
+ }
+ if strings.ToLower(answer)[0] != 'y' {
+ return nil
+ }
+ }
+ responses, err := registry.ContainerEngine().NetworkPrune(registry.Context(), networkPruneOptions)
+ if err != nil {
+ setExitCode(err)
+ return err
+ }
+ for _, r := range responses {
+ if r.Error == nil {
+ fmt.Println(r.Name)
+ } else {
+ setExitCode(r.Error)
+ errs = append(errs, r.Error)
+ }
+ }
+ return errs.PrintErrors()
+}