Backport regression fix

0001-Only-unshare-user-automatically-if-we-re-not-root.patch

@@ -0,0 +1,45 @@
+From 2a408e8cc696651b74038de2ff2f3fe136dfe46d Mon Sep 17 00:00:00 2001
+From: Colin Walters <walters@verbum.org>
+Date: Mon, 5 Dec 2016 15:38:22 -0500
+Subject: [PATCH] Only --unshare-user automatically if we're not root
+
+https://github.com/projectatomic/bubblewrap/pull/122 introduced a
+regression for the case of rpm-ostree running bubblewrap on CentOS 7.
+
+Previously the `is_privileged` variable captured whether or not
+our uid was 0, now it captures whether we're setuid.
+
+This bit of code enabled `--unshare-user` automatically if we're not
+privileged, but we suddenly started doing that for running as real uid
+0 (CAP_SYS_ADMIN), which we don't want, since on CentOS/RHEL 7 today
+userns isn't even available to root without a module parameter and
+reboot.
+
+So, let's just do this only if not setuid *and* we're not uid 0
+(really we should check "have CAP_SYS_ADMIN" but eh).
+
+Closes: #123
+Approved by: alexlarsson
+---
+ bubblewrap.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/bubblewrap.c b/bubblewrap.c
+index 10e520b..6e04459 100644
+--- a/bubblewrap.c
++++ b/bubblewrap.c
+@@ -1631,8 +1631,9 @@ main (int    argc,
+ 
+   parse_args (&argc, &argv);
+ 
+-  /* We have to do this if we weren't installed setuid, so let's just DWIM */
+-  if (!is_privileged)
++  /* We have to do this if we weren't installed setuid (and we're not
++   * root), so let's just DWIM */
++  if (!is_privileged && getuid () != 0)
+     opt_unshare_user = TRUE;
+ 
+   if (opt_unshare_user_try &&
+-- 
+2.9.3
+

bubblewrap.spec

@@ -1,6 +1,6 @@
 Name: bubblewrap
 Version: 0.1.4
-Release: 3%{?dist}
+Release: 5%{?dist}
 Summary: Core execution tool for unprivileged containers
 
 License: LGPLv2+
@@ -8,6 +8,7 @@ License: LGPLv2+
 URL: https://github.com/projectatomic/bubblewrap
 Source0: https://github.com/projectatomic/bubblewrap/releases/download/v%{version}/bubblewrap-%{version}.tar.xz
 Patch0: 0001-Don-t-call-capset-unless-we-need-to.patch
+Patch1: 0001-Only-unshare-user-automatically-if-we-re-not-root.patch
 
 BuildRequires: autoconf automake libtool
 BuildRequires: gcc
@@ -46,6 +47,9 @@ find %{buildroot} -name '*.la' -delete -print
 %{_mandir}/man1/*
 
 %changelog
+* Tue Dec 06 2016 walters@redhat.com - 0.1.4-4
+- Backport fix for regression in previous commit for rpm-ostree
+
 * Thu Dec 01 2016 walters@redhat.com - 0.1.4-3
 - Backport patch to fix running via nspawn, which should fix rpm-ostree-in-bodhi