import: write stdin to tmp file

If importing an archive via stdin write it to a temporary file such that
the temporary file can be opened multiple times later on.  Otherwise, we
may end up with an empty image.

Also fix a bug in the URL parsing code; we need to check whether there's
actually a scheme.

Add system tests for `podman import` exercising the basics.

Fixes: #10994
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/test/system/125-import.bats b/test/system/125-import.bats
new file mode 100644
index 000000000..c53711618
--- /dev/null
+++ b/test/system/125-import.bats
@@ -0,0 +1,45 @@
+#!/usr/bin/env bats   -*- bats -*-
+#
+# tests for podman import
+#
+
+load helpers
+
+@test "podman import" {
+    local archive=$PODMAN_TMPDIR/archive.tar
+    local random_content=$(random_string 12)
+    # Generate a random name and tag (must be lower-case)
+    local random_name=x0$(random_string 12 | tr A-Z a-z)
+    local random_tag=t0$(random_string 7 | tr A-Z a-z)
+    local fqin=localhost/$random_name:$random_tag
+
+    run_podman run --name import $IMAGE sh -c "echo ${random_content} > /random.txt"
+    run_podman export import -o $archive
+    run_podman rm -f import
+
+    # Simple import
+    run_podman import -q $archive
+    iid="$output"
+    run_podman run -t --rm $iid cat /random.txt
+    is "$output" "$random_content" "simple import"
+    run_podman rmi -f $iid
+
+    # Simple import via stdin
+    run_podman import -q - < <(cat $archive)
+    iid="$output"
+    run_podman run -t --rm $iid cat /random.txt
+    is "$output" "$random_content" "simple import via stdin"
+    run_podman rmi -f $iid
+
+    # Tagged import
+    run_podman import -q $archive $fqin
+    run_podman run -t --rm $fqin cat /random.txt
+    is "$output" "$random_content" "tagged import"
+    run_podman rmi -f $fqin
+
+    # Tagged import via stdin
+    run_podman import -q - $fqin < <(cat $archive)
+    run_podman run -t --rm $fqin cat /random.txt
+    is "$output" "$random_content" "tagged import via stdin"
+    run_podman rmi -f $fqin
+}