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package registry
import (
"fmt"
"os"
"path/filepath"
"runtime"
"strings"
"github.com/containers/common/pkg/config"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/pkg/util"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
const (
RootRequired = "RootRequired"
)
var (
PodmanOptions entities.PodmanConfig
)
// NewPodmanConfig creates a PodmanConfig from the environment
func NewPodmanConfig() entities.PodmanConfig {
if err := setXdgDirs(); err != nil {
logrus.Errorf(err.Error())
os.Exit(1)
}
var mode entities.EngineMode
switch runtime.GOOS {
case "darwin":
fallthrough
case "windows":
mode = entities.TunnelMode
case "linux":
mode = entities.ABIMode
default:
logrus.Errorf("%s is not a supported OS", runtime.GOOS)
os.Exit(1)
}
// cobra.Execute() may not be called yet, so we peek at os.Args.
for _, v := range os.Args {
// Prefix checking works because of how default EngineMode's
// have been defined.
if strings.HasPrefix(v, "--remote=") {
mode = entities.TunnelMode
}
}
// FIXME: for rootless, where to get the path
// TODO:
cfg, err := config.NewConfig("")
if err != nil {
logrus.Error("Failed to obtain podman configuration")
os.Exit(1)
}
return entities.PodmanConfig{Config: cfg, EngineMode: mode}
}
// SetXdgDirs ensures the XDG_RUNTIME_DIR env and XDG_CONFIG_HOME variables are set.
// containers/image uses XDG_RUNTIME_DIR to locate the auth file, XDG_CONFIG_HOME is
// use for the libpod.conf configuration file.
func setXdgDirs() error {
if !rootless.IsRootless() {
return nil
}
// Setup XDG_RUNTIME_DIR
runtimeDir := os.Getenv("XDG_RUNTIME_DIR")
if runtimeDir == "" {
var err error
runtimeDir, err = util.GetRuntimeDir()
if err != nil {
return err
}
}
if err := os.Setenv("XDG_RUNTIME_DIR", runtimeDir); err != nil {
return errors.Wrapf(err, "cannot set XDG_RUNTIME_DIR")
}
if rootless.IsRootless() && os.Getenv("DBUS_SESSION_BUS_ADDRESS") == "" {
sessionAddr := filepath.Join(runtimeDir, "bus")
if _, err := os.Stat(sessionAddr); err == nil {
os.Setenv("DBUS_SESSION_BUS_ADDRESS", fmt.Sprintf("unix:path=%s", sessionAddr))
}
}
// Setup XDG_CONFIG_HOME
if cfgHomeDir := os.Getenv("XDG_CONFIG_HOME"); cfgHomeDir == "" {
cfgHomeDir, err := util.GetRootlessConfigHomeDir()
if err != nil {
return err
}
if err := os.Setenv("XDG_CONFIG_HOME", cfgHomeDir); err != nil {
return errors.Wrapf(err, "cannot set XDG_CONFIG_HOME")
}
}
return nil
}
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