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package pods
import (
"fmt"
"os"
"github.com/containers/common/pkg/auth"
"github.com/containers/common/pkg/completion"
"github.com/containers/image/v5/types"
"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/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/util"
"github.com/spf13/cobra"
)
// playKubeOptionsWrapper allows for separating CLI-only fields from API-only
// fields.
type playKubeOptionsWrapper struct {
entities.PlayKubeOptions
TLSVerifyCLI bool
CredentialsCLI string
StartCLI bool
}
var (
// https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/
defaultSeccompRoot = "/var/lib/kubelet/seccomp"
kubeOptions = playKubeOptionsWrapper{}
kubeDescription = `Command reads in a structured file of Kubernetes YAML.
It creates the pod and containers described in the YAML. The containers within the pod are then started and the ID of the new Pod is output.`
kubeCmd = &cobra.Command{
Use: "kube [options] KUBEFILE",
Short: "Play a pod based on Kubernetes YAML.",
Long: kubeDescription,
RunE: kube,
Args: cobra.ExactArgs(1),
ValidArgsFunction: completion.AutocompleteDefault,
Example: `podman play kube nginx.yml
podman play kube --creds user:password --seccomp-profile-root /custom/path apache.yml`,
}
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: kubeCmd,
Parent: playCmd,
})
flags := kubeCmd.Flags()
flags.SetNormalizeFunc(utils.AliasFlags)
credsFlagName := "creds"
flags.StringVar(&kubeOptions.CredentialsCLI, credsFlagName, "", "`Credentials` (USERNAME:PASSWORD) to use for authenticating to a registry")
_ = kubeCmd.RegisterFlagCompletionFunc(credsFlagName, completion.AutocompleteNone)
networkFlagName := "network"
flags.StringVar(&kubeOptions.Network, networkFlagName, "", "Connect pod to CNI network(s)")
_ = kubeCmd.RegisterFlagCompletionFunc(networkFlagName, common.AutocompleteNetworks)
logDriverFlagName := "log-driver"
flags.StringVar(&kubeOptions.LogDriver, logDriverFlagName, "", "Logging driver for the container")
_ = kubeCmd.RegisterFlagCompletionFunc(logDriverFlagName, common.AutocompleteLogDriver)
flags.BoolVarP(&kubeOptions.Quiet, "quiet", "q", false, "Suppress output information when pulling images")
flags.BoolVar(&kubeOptions.TLSVerifyCLI, "tls-verify", true, "Require HTTPS and verify certificates when contacting registries")
flags.BoolVar(&kubeOptions.StartCLI, "start", true, "Start the pod after creating it")
authfileFlagName := "authfile"
flags.StringVar(&kubeOptions.Authfile, authfileFlagName, auth.GetDefaultAuthFile(), "Path of the authentication file. Use REGISTRY_AUTH_FILE environment variable to override")
_ = kubeCmd.RegisterFlagCompletionFunc(authfileFlagName, completion.AutocompleteDefault)
if !registry.IsRemote() {
certDirFlagName := "cert-dir"
flags.StringVar(&kubeOptions.CertDir, certDirFlagName, "", "`Pathname` of a directory containing TLS certificates and keys")
_ = kubeCmd.RegisterFlagCompletionFunc(certDirFlagName, completion.AutocompleteDefault)
flags.StringVar(&kubeOptions.SignaturePolicy, "signature-policy", "", "`Pathname` of signature policy file (not usually used)")
seccompProfileRootFlagName := "seccomp-profile-root"
flags.StringVar(&kubeOptions.SeccompProfileRoot, seccompProfileRootFlagName, defaultSeccompRoot, "Directory path for seccomp profiles")
_ = kubeCmd.RegisterFlagCompletionFunc(seccompProfileRootFlagName, completion.AutocompleteDefault)
configmapFlagName := "configmap"
flags.StringSliceVar(&kubeOptions.ConfigMaps, configmapFlagName, []string{}, "`Pathname` of a YAML file containing a kubernetes configmap")
_ = kubeCmd.RegisterFlagCompletionFunc(configmapFlagName, completion.AutocompleteDefault)
}
_ = flags.MarkHidden("signature-policy")
}
func kube(cmd *cobra.Command, args []string) error {
// TLS verification in c/image is controlled via a `types.OptionalBool`
// which allows for distinguishing among set-true, set-false, unspecified
// which is important to implement a sane way of dealing with defaults of
// boolean CLI flags.
if cmd.Flags().Changed("tls-verify") {
kubeOptions.SkipTLSVerify = types.NewOptionalBool(!kubeOptions.TLSVerifyCLI)
}
if cmd.Flags().Changed("start") {
kubeOptions.Start = types.NewOptionalBool(kubeOptions.StartCLI)
}
if kubeOptions.Authfile != "" {
if _, err := os.Stat(kubeOptions.Authfile); err != nil {
return err
}
}
if kubeOptions.CredentialsCLI != "" {
creds, err := util.ParseRegistryCreds(kubeOptions.CredentialsCLI)
if err != nil {
return err
}
kubeOptions.Username = creds.Username
kubeOptions.Password = creds.Password
}
report, err := registry.ContainerEngine().PlayKube(registry.GetContext(), args[0], kubeOptions.PlayKubeOptions)
if err != nil {
return err
}
for _, pod := range report.Pods {
for _, l := range pod.Logs {
fmt.Fprintf(os.Stderr, l)
}
}
for _, pod := range report.Pods {
fmt.Printf("Pod:\n")
fmt.Println(pod.ID)
switch len(pod.Containers) {
case 0:
continue
case 1:
fmt.Printf("Container:\n")
default:
fmt.Printf("Containers:\n")
}
for _, ctr := range pod.Containers {
fmt.Println(ctr)
}
// Empty line for space for next block
fmt.Println()
}
return nil
}
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