From ea86a9f2cabb1d233edb40e1457a75f138eb08e8 Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Wed, 6 Oct 2021 03:07:40 -0400
Subject: [PATCH] fix: ensure pack is run as root user when building apps in
 docker

Without this, using the pack builder fails since it cannot communicate with a root-mounted docker socket.
---
 docker/etc/sudoers.d/dokku-docker |  2 +-
 docker/usr/local/bin/pack         | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100755 docker/usr/local/bin/pack

diff --git a/docker/etc/sudoers.d/dokku-docker b/docker/etc/sudoers.d/dokku-docker
index d5677f34f..ae9a60f3f 100644
--- a/docker/etc/sudoers.d/dokku-docker
+++ b/docker/etc/sudoers.d/dokku-docker
@@ -1 +1 @@
-dokku    ALL=NOPASSWD:SETENV:/usr/bin/docker,/usr/bin/docker-image-labeler
+dokku    ALL=NOPASSWD:SETENV:/usr/bin/docker,/usr/bin/docker-image-labeler,/usr/bin/pack
diff --git a/docker/usr/local/bin/pack b/docker/usr/local/bin/pack
new file mode 100755
index 000000000..2379ef71e
--- /dev/null
+++ b/docker/usr/local/bin/pack
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -eo pipefail
+[[ $TRACE ]] && set -x
+
+main() {
+  declare desc="re-runs pack commands as sudo"
+  local PACK_BIN=""
+  if [[ -x "/usr/bin/pack" ]]; then
+    PACK_BIN="/usr/bin/pack"
+  fi
+
+  if [[ -z "$PACK_BIN" ]]; then
+    echo "!   No pack binary found" 1>&2
+    exit 1
+  fi
+
+  sudo -E "$PACK_BIN" "$@"
+}
+
+main "$@"