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package containers
import (
"context"
"fmt"
"time"
"github.com/containers/libpod/cmd/podman/registry"
"github.com/containers/libpod/cmd/podman/utils"
"github.com/containers/libpod/cmd/podman/validate"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
var (
waitDescription = `Block until one or more containers stop and then print their exit codes.
`
waitCommand = &cobra.Command{
Use: "wait [flags] CONTAINER [CONTAINER...]",
Short: "Block on one or more containers",
Long: waitDescription,
RunE: wait,
Args: validate.IDOrLatestArgs,
Example: `podman wait --interval 5000 ctrID
podman wait ctrID1 ctrID2`,
}
containerWaitCommand = &cobra.Command{
Use: waitCommand.Use,
Short: waitCommand.Short,
Long: waitCommand.Long,
RunE: waitCommand.RunE,
Args: validate.IDOrLatestArgs,
Example: `podman container wait --interval 5000 ctrID
podman container wait ctrID1 ctrID2`,
}
)
var (
waitOptions = entities.WaitOptions{}
waitCondition string
)
func waitFlags(flags *pflag.FlagSet) {
flags.DurationVarP(&waitOptions.Interval, "interval", "i", time.Duration(250), "Milliseconds to wait before polling for completion")
flags.StringVar(&waitCondition, "condition", "stopped", "Condition to wait on")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: waitCommand,
})
waitFlags(waitCommand.Flags())
validate.AddLatestFlag(waitCommand, &waitOptions.Latest)
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: containerWaitCommand,
Parent: containerCmd,
})
waitFlags(containerWaitCommand.Flags())
validate.AddLatestFlag(containerWaitCommand, &waitOptions.Latest)
}
func wait(cmd *cobra.Command, args []string) error {
var (
err error
errs utils.OutputErrors
)
if waitOptions.Interval == 0 {
return errors.New("interval must be greater then 0")
}
waitOptions.Condition, err = define.StringToContainerStatus(waitCondition)
if err != nil {
return err
}
responses, err := registry.ContainerEngine().ContainerWait(context.Background(), args, waitOptions)
if err != nil {
return err
}
for _, r := range responses {
if r.Error == nil {
fmt.Println(r.ExitCode)
} else {
errs = append(errs, r.Error)
}
}
return errs.PrintErrors()
}
|
