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package main
import (
"fmt"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/rootless"
"github.com/ghodss/yaml"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
var (
containerKubeFlags = []cli.Flag{
cli.BoolFlag{
Name: "service, s",
Usage: "only generate YAML for kubernetes service object",
},
LatestFlag,
}
containerKubeDescription = "Generate Kubernetes Pod YAML"
containerKubeCommand = cli.Command{
Name: "generate",
Usage: "Generate Kubernetes pod YAML for a container",
Description: containerKubeDescription,
Flags: sortFlags(containerKubeFlags),
Action: generateKubeYAMLCmd,
ArgsUsage: "CONTAINER-NAME",
UseShortOptionHandling: true,
OnUsageError: usageErrorHandler,
}
)
// generateKubeYAMLCmdgenerates or replays kube
func generateKubeYAMLCmd(c *cli.Context) error {
var (
container *libpod.Container
err error
output []byte
)
if rootless.IsRootless() {
return errors.Wrapf(libpod.ErrNotImplemented, "rootless users")
}
args := c.Args()
if len(args) > 1 || (len(args) < 1 && !c.Bool("latest")) {
return errors.Errorf("you must provide one container ID or name or --latest")
}
if c.Bool("service") {
return errors.Wrapf(libpod.ErrNotImplemented, "service generation")
}
runtime, err := libpodruntime.GetRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
// Get the container in question
if c.Bool("latest") {
container, err = runtime.GetLatestContainer()
} else {
container, err = runtime.LookupContainer(args[0])
}
if err != nil {
return err
}
if len(container.Dependencies()) > 0 {
return errors.Wrapf(libpod.ErrNotImplemented, "containers with dependencies")
}
podYAML, err := container.InspectForKube()
if err != nil {
return err
}
developmentComment := []byte("# Generation of Kubenetes YAML is still under development!\n")
logrus.Warn("This function is still under heavy development.")
// Marshall the results
b, err := yaml.Marshal(podYAML)
if err != nil {
return err
}
output = append(output, developmentComment...)
output = append(output, b...)
// Output the v1.Pod with the v1.Container
fmt.Println(string(output))
return nil
}
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