From ad55ba6eb2c0d30221bfd446bb8109b9650925de Mon Sep 17 00:00:00 2001
From: Daniel J Walsh <dwalsh@redhat.com>
Date: Mon, 12 Feb 2024 16:05:38 -0500
Subject: [PATCH] Handle DOCKER_HOST environment for podman-docker package

Rootless users should be defaulted to point DOCKER_HOST at
$XDG_RUNTIME_DIR/podman/podman.sock

When podman-docker package is installed.

[NO NEW TESTS NEEDED]

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
---
 Makefile                      |  5 ++++-
 docker.in => docker/docker.in |  0
 docker/podman-docker.csh      | 10 ++++++++++
 docker/podman-docker.sh       | 11 +++++++++++
 rpm/podman.spec               |  3 ++-
 5 files changed, 27 insertions(+), 2 deletions(-)
 rename docker.in => docker/docker.in (100%)
 create mode 100644 docker/podman-docker.csh
 create mode 100644 docker/podman-docker.sh

diff --git a/Makefile b/Makefile
index af79fdebe1..7645c9d006 100644
--- a/Makefile
+++ b/Makefile
@@ -875,10 +875,13 @@ install.completions:
 install.docker:
 	install ${SELINUXOPT} -d -m 755 $(DESTDIR)$(BINDIR)
 	$(eval INTERPOLATED_DOCKER_SCRIPT := $(shell mktemp))
-	env BINDIR=${BINDIR} ETCDIR=${ETCDIR} envsubst < docker.in > ${INTERPOLATED_DOCKER_SCRIPT}
+	env BINDIR=${BINDIR} ETCDIR=${ETCDIR} envsubst < docker/docker.in > ${INTERPOLATED_DOCKER_SCRIPT}
 	install ${SELINUXOPT} -m 755 ${INTERPOLATED_DOCKER_SCRIPT} $(DESTDIR)$(BINDIR)/docker
 	rm ${INTERPOLATED_DOCKER_SCRIPT}
 	install ${SELINUXOPT} -m 755 -d $(DESTDIR)${SYSTEMDDIR}  $(DESTDIR)${USERSYSTEMDDIR} $(DESTDIR)${TMPFILESDIR} $(DESTDIR)${USERTMPFILESDIR}
+	install ${SELINUXOPT} -d -m 755 $(DESTDIR)${ETCDIR}/profile.d
+	install ${SELINUXOPT} -m 644 docker/podman-docker.sh $(DESTDIR)${ETCDIR}/profile.d/podman-docker.sh
+	install ${SELINUXOPT} -m 644 docker/podman-docker.csh $(DESTDIR)${ETCDIR}/profile.d/podman-docker.csh
 	install ${SELINUXOPT} -m 644 contrib/systemd/system/podman-docker.conf -t $(DESTDIR)${TMPFILESDIR}
 	install ${SELINUXOPT} -m 644 contrib/systemd/system/podman-docker.conf -t $(DESTDIR)${USERTMPFILESDIR}
 
diff --git a/docker.in b/docker/docker.in
similarity index 100%
rename from docker.in
rename to docker/docker.in
diff --git a/docker/podman-docker.csh b/docker/podman-docker.csh
new file mode 100644
index 0000000000..fd82a6e229
--- /dev/null
+++ b/docker/podman-docker.csh
@@ -0,0 +1,10 @@
+# DOCKER_HOST initialization
+
+if ($?DOCKER_HOST) exit
+if ( "$euid" == 0 ) then
+        setenv DOCKER_HOST unix:///run/podman/podman.sock
+else
+    if ($?XDG_RUNTIME_DIR) then
+        setenv DOCKER_HOST unix://$XDG_RUNTIME_DIR/podman/podman.sock
+    endif
+endif
diff --git a/docker/podman-docker.sh b/docker/podman-docker.sh
new file mode 100644
index 0000000000..cd07e361e0
--- /dev/null
+++ b/docker/podman-docker.sh
@@ -0,0 +1,11 @@
+# DOCKER_HOST initialization
+
+if [ -z "$DOCKER_HOST" ]; then
+    if [ $(id -u) -eq 0 ]; then
+	export DOCKER_HOST=unix:///run/podman/podman.sock
+    else
+	if [ -n "$XDG_RUNTIME_DIR" ]; then
+	    export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/podman/podman.sock
+	fi
+    fi
+fi
diff --git a/rpm/podman.spec b/rpm/podman.spec
index cf073d9d18..62ca4dce9f 100644
--- a/rpm/podman.spec
+++ b/rpm/podman.spec
@@ -248,7 +248,7 @@ LDFLAGS=''
 
 %install
 install -dp %{buildroot}%{_unitdir}
-PODMAN_VERSION=%{version} %{__make} PREFIX=%{buildroot}%{_prefix} ETCDIR=%{_sysconfdir} \
+PODMAN_VERSION=%{version} %{__make} DESTDIR=%{buildroot} PREFIX=%{_prefix} ETCDIR=%{_sysconfdir} \
        install.bin \
        install.man \
        install.systemd \
@@ -300,6 +300,7 @@ cp -pav test/system %{buildroot}/%{_datadir}/%{name}/test/
 %files docker
 %{_bindir}/docker
 %{_mandir}/man1/docker*.1*
+%{_sysconfdir}/profile.d/%{name}-docker.*
 %{_tmpfilesdir}/%{name}-docker.conf
 %{_user_tmpfilesdir}/%{name}-docker.conf