From 18e21f82a92e31e5cbddfa45ab74e14218a5dc0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Gronowski?= <pawel.gronowski@docker.com>
Date: Mon, 19 Feb 2024 15:16:07 +0100
Subject: [PATCH] mounts/validate: Don't check source exists with
 CreateMountpoint
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Don't error out when mount source doesn't exist and mounts has
`CreateMountpoint` option enabled.

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
(cherry picked from commit 05b883bdc836a2fd621452f58a2a2c02d253718c)
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
---
 volume/mounts/linux_parser.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/volume/mounts/linux_parser.go b/volume/mounts/linux_parser.go
index bcabe45720f63..1013a6bae725f 100644
--- a/volume/mounts/linux_parser.go
+++ b/volume/mounts/linux_parser.go
@@ -94,7 +94,9 @@ func (p *linuxParser) validateMountConfigImpl(mnt *mount.Mount, validateBindSour
 			if err != nil {
 				return &errMountConfig{mnt, err}
 			}
-			if !exists {
+
+			createMountpoint := mnt.BindOptions != nil && mnt.BindOptions.CreateMountpoint
+			if !exists && !createMountpoint {
 				return &errMountConfig{mnt, errBindSourceDoesNotExist(mnt.Source)}
 			}
 		}