Allow users to add host user accounts to /etc/passwd

Some containers require certain user account(s) to exist within the
container when they are run. This option will allow callers to add a
bunch of passwd entries from the host to the container even if the
entries are not in the local /etc/passwd file on the host.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935831

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/test/system/030-run.bats b/test/system/030-run.bats
index c0b61b613..130cf5492 100644
--- a/test/system/030-run.bats
+++ b/test/system/030-run.bats
@@ -711,6 +711,18 @@ EOF
     run_podman rmi nomtab
 }
 
+@test "podman run --hostuser tests" {
+    skip_if_not_rootless "test whether hostuser is successfully added"
+    user=$(id -un)
+    run_podman 1 run --rm $IMAGE grep $user /etc/passwd
+    run_podman run --hostuser=$user --rm $IMAGE grep $user /etc/passwd
+    user=$(id -u)
+    run_podman run --hostuser=$user --rm $IMAGE grep $user /etc/passwd
+    run_podman run --hostuser=$user --user $user --rm $IMAGE grep $user /etc/passwd
+    user=bogus
+    run_podman 126 run --hostuser=$user --rm $IMAGE grep $user /etc/passwd
+}
+
 @test "podman run --device-cgroup-rule tests" {
     skip_if_rootless "cannot add devices in rootless mode"
 
diff --git a/test/system/helpers.bash b/test/system/helpers.bash
index 97b6db05c..415c9010e 100644
--- a/test/system/helpers.bash
+++ b/test/system/helpers.bash
@@ -398,6 +398,16 @@ function skip_if_rootless() {
     fi
 }
 
+######################
+#  skip_if_not_rootless  #  ...with an optional message
+######################
+function skip_if_not_rootless() {
+    if ! is_rootless; then
+        local msg=$(_add_label_if_missing "$1" "rootfull")
+        skip "${msg:-not applicable under rootlfull podman}"
+    fi
+}
+
 ####################
 #  skip_if_remote  #  ...with an optional message
 ####################