From a02aa0bdb5f0a3e391670d42dfcde43eaf4b3563 Mon Sep 17 00:00:00 2001
From: Eric Curtin <eric.curtin@docker.com>
Date: Tue, 11 Aug 2026 13:49:45 +0100
Subject: [PATCH] Add SBX env var to install docker-sbx package

Allow users to opt into installing the docker-sbx package alongside
the standard Docker Engine packages by setting SBX=1, for example:

    curl -fsSL https://get.docker.com | sudo SBX=1 sh

This mirrors the existing pattern used by other env vars (CHANNEL,
VERSION, etc.) and adds the docker-sbx package to the apt and
dnf/yum install package lists when SBX is set to "1".

Signed-off-by: Eric Curtin <eric.curtin@docker.com>
---
 install.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/install.sh b/install.sh
index 7f7e1d6f..7f74d548 100755
--- a/install.sh
+++ b/install.sh
@@ -94,6 +94,13 @@ set -e
 #
 # Note: Starting the service requires appropriate privileges to manage system services.
 #
+# Installing docker-sbx
+#
+# Set the SBX environment variable to "1" to also install the docker-sbx
+# package alongside the regular Docker Engine packages:
+#
+#   $ curl -fsSL https://get.docker.com | sudo SBX=1 sh
+#
 # ==============================================================================
 
 
@@ -131,6 +138,7 @@ mirror=''
 DRY_RUN=${DRY_RUN:-}
 REPO_ONLY=${REPO_ONLY:-0}
 NO_AUTOSTART=${NO_AUTOSTART:-0}
+SBX=${SBX:-0}
 while [ $# -gt 0 ]; do
 	case "$1" in
 		--channel)
@@ -631,6 +639,9 @@ do_install() {
 				if version_gte "28.2"; then
 					pkgs="$pkgs docker-model-plugin"
 				fi
+				if [ "$SBX" = "1" ]; then
+					pkgs="$pkgs docker-sbx"
+				fi
 				if ! is_dry_run; then
 					set -x
 				fi
@@ -743,6 +754,9 @@ do_install() {
 				if version_gte "23.0"; then
 						pkgs="$pkgs docker-buildx-plugin docker-model-plugin"
 				fi
+				if [ "$SBX" = "1" ]; then
+					pkgs="$pkgs docker-sbx"
+				fi
 				if ! is_dry_run; then
 					set -x
 				fi