From b15e15f03877a96f3db700e513f13d87aaf602a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dan=20=C4=8Cerm=C3=A1k?= <dcermak@suse.com>
Date: Mon, 29 Apr 2024 10:11:16 +0200
Subject: [PATCH] Also substitute $HOME in runlabel with user's homedir
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Some programs have their configuration files relative to the user's
home. It would be convenient being able to mount these into the container, but
that requires expansion of `~` or `$HOME` in a label. This commit adds support
for that for the `runlabel` command.

Signed-off-by: Dan Čermák <dcermak@suse.com>
---
 pkg/domain/infra/abi/containers_runlabel.go | 7 +++++++
 test/system/037-runlabel.bats               | 6 +++---
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/pkg/domain/infra/abi/containers_runlabel.go b/pkg/domain/infra/abi/containers_runlabel.go
index 7b63848c61ad..bc65af7c46a0 100644
--- a/pkg/domain/infra/abi/containers_runlabel.go
+++ b/pkg/domain/infra/abi/containers_runlabel.go
@@ -173,6 +173,13 @@ func generateRunlabelCommand(runlabel string, img *libimage.Image, inputName str
 				return ""
 			}
 			return d
+		case "HOME":
+			if h, err := os.UserHomeDir(); err != nil {
+				logrus.Error("Unable to determine user's home directory")
+				return ""
+			} else {
+				return h
+			}
 		}
 		return ""
 	}
diff --git a/test/system/037-runlabel.bats b/test/system/037-runlabel.bats
index 3056d6aca740..b59b8c1f8855 100644
--- a/test/system/037-runlabel.bats
+++ b/test/system/037-runlabel.bats
@@ -12,16 +12,16 @@ load helpers
     rand3=$(random_string 30)
     cat >$containerfile <<EOF
 FROM $IMAGE
-LABEL  INSTALL  podman  run  -t  -i  --rm  \\\${OPT1}  --privileged  -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e NAME=\\\${NAME} -e IMAGE=\\\${IMAGE} -e CONFDIR=/etc/\\\${NAME} -e LOGDIR=/var/log/\\\${NAME} -e DATADIR=/var/lib/\\\${NAME} \\\${IMAGE} \\\${OPT2} /bin/install.sh \\\${OPT3}
+LABEL  INSTALL  podman  run  -t  -i  --rm  \\\${OPT1}  --privileged  -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e HOMEDIR=\\\$HOME -e NAME=\\\${NAME} -e IMAGE=\\\${IMAGE} -e CONFDIR=/etc/\\\${NAME} -e LOGDIR=/var/log/\\\${NAME} -e DATADIR=/var/lib/\\\${NAME} \\\${IMAGE} \\\${OPT2} /bin/install.sh \\\${OPT3}
 EOF
 
     run_podman build -t runlabel_image $tmpdir
 
     run_podman container runlabel --opt1=${rand1} --opt2=${rand2} --opt3=${rand3} --name test1 --display  install runlabel_image
-    is "$output"   "command: ${PODMAN} run -t -i --rm ${rand1} --privileged -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e NAME=test1 -e IMAGE=localhost/runlabel_image:latest -e CONFDIR=/etc/test1 -e LOGDIR=/var/log/test1 -e DATADIR=/var/lib/test1 localhost/runlabel_image:latest ${rand2} /bin/install.sh ${rand3}"   "generating runlabel install command"
+    is "$output"   "command: ${PODMAN} run -t -i --rm ${rand1} --privileged -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e HOMEDIR=${HOME} -e NAME=test1 -e IMAGE=localhost/runlabel_image:latest -e CONFDIR=/etc/test1 -e LOGDIR=/var/log/test1 -e DATADIR=/var/lib/test1 localhost/runlabel_image:latest ${rand2} /bin/install.sh ${rand3}"   "generating runlabel install command"
 
     run_podman container runlabel --opt3=${rand3} --display  install runlabel_image
-    is "$output"   "command: ${PODMAN} run -t -i --rm --privileged -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e NAME=runlabel_image -e IMAGE=localhost/runlabel_image:latest -e CONFDIR=/etc/runlabel_image -e LOGDIR=/var/log/runlabel_image -e DATADIR=/var/lib/runlabel_image localhost/runlabel_image:latest /bin/install.sh ${rand3}" "generating runlabel without name and --opt1, --opt2"
+    is "$output"   "command: ${PODMAN} run -t -i --rm --privileged -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e HOMEDIR=${HOME} -e NAME=runlabel_image -e IMAGE=localhost/runlabel_image:latest -e CONFDIR=/etc/runlabel_image -e LOGDIR=/var/log/runlabel_image -e DATADIR=/var/lib/runlabel_image localhost/runlabel_image:latest /bin/install.sh ${rand3}" "generating runlabel without name and --opt1, --opt2"
 
     run_podman 125 container runlabel --opt1=${rand1} --opt2=${rand2} --opt3=${rand3} --name test1 --display  run runlabel_image
     is "$output"   "Error: cannot find the value of label: run in image: runlabel_image"   "generating runlabel run command"