Touch up XDG, add rootless links

Touch up a number of formating issues for XDG_RUNTIME_DIRS in a number
of man pages.  Make use of the XDG_CONFIG_HOME environment variable
in a rootless environment if available, or set it if not.

Also added a number of links to the Rootless Podman config page and
added the location of the auth.json files to that doc.

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/cmd/podman/remoteclientconfig/config_linux.go b/cmd/podman/remoteclientconfig/config_linux.go
index b94941381..5d27f19f2 100644
--- a/cmd/podman/remoteclientconfig/config_linux.go
+++ b/cmd/podman/remoteclientconfig/config_linux.go
@@ -1,12 +1,17 @@
 package remoteclientconfig
 
 import (
+	"os"
 	"path/filepath"
 
 	"github.com/docker/docker/pkg/homedir"
 )
 
 func getConfigFilePath() string {
-	homeDir := homedir.Get()
-	return filepath.Join(homeDir, ".config", "containers", remoteConfigFileName)
+	path := os.Getenv("XDG_CONFIG_HOME")
+	if path == "" {
+		homeDir := homedir.Get()
+		path = filepath.Join(homeDir, ".config")
+	}
+	return filepath.Join(path, "containers", remoteConfigFileName)
 }