GitHub Actions: build and test grml-debootstrap in PRs

[grml-debootstrap.git] / tests / test-vm.sh

diff --git a/tests/test-vm.sh b/tests/test-vm.sh
new file mode 100755 (executable)
index 0000000..85e46c5
--- /dev/null
+++ b/tests/test-vm.sh
@@ -0,0 +1,140 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Run previously built VM image in qemu and check if it boots.
+# Requires virtiofs support in VM.
+
+set -eu -o pipefail
+
+if [ "$#" -ne 2 ]; then
+  echo "$0: Invalid arguments" >&2
+  echo "Expect: $0 VM_IMAGE VM_HOSTNAME" >&2
+  exit 1
+fi
+set -x
+
+VM_IMAGE="$1"
+VM_HOSTNAME="$2"
+
+TEST_PWD="$PWD"
+TEST_TMPDIR=$(mktemp -d)
+TESTS_RESULTSDIR="$PWD/tests/results"
+echo "Working in $TEST_TMPDIR, writing results to $TESTS_RESULTSDIR"
+mkdir -p "$TESTS_RESULTSDIR"
+
+bailout() {
+  if [ -n "${QEMU_PID:-}" ] ; then
+    # shellcheck disable=SC2009
+    ps --pid="${QEMU_PID}" -o pid= | grep -q '.' && kill "${QEMU_PID:-}"
+  fi
+
+  rm -rf "${TEST_TMPDIR}"
+
+  [ -n "${1:-}" ] && EXIT_CODE="$1" || EXIT_CODE=1
+  exit "$EXIT_CODE"
+}
+trap bailout 1 2 3 6 14 15
+
+# Setup test runner
+cp ./tests/goss "$TEST_TMPDIR"/
+cp ./tests/goss.yaml "$TEST_TMPDIR"/
+cat <<EOT > "$TEST_TMPDIR"/testrunner
+#!/bin/bash
+# Do not set -eu, we want to continue even if individual commands fail.
+set -x
+echo "INSIDE_VM $0 running"
+mkdir results
+
+# Collect information from VM first
+lsb_release -a > results/lsb_release.txt
+uname -a > results/uname-a.txt
+systemctl list-units > results/systemctl_list-units.txt
+systemctl status > results/systemctl_status.txt
+fdisk -l > results/fdisk-l.txt
+hostname -f > results/hostname-f.txt 2>&1
+journalctl -b > results/journalctl-b.txt
+dpkg -l > results/dpkg-l.txt
+
+# Run tests
+./goss --gossfile goss.yaml validate --format tap > results/goss.tap
+# Detection of testrunner success hinges on goss.exitcode file.
+echo \$? > results/goss.exitcode
+
+echo "INSIDE_VM $0 finished"
+EOT
+chmod a+rx "$TEST_TMPDIR"/testrunner
+
+cd "$TEST_TMPDIR"
+
+MOUNT_TAG=host0
+qemu-system-x86_64 -hda "${VM_IMAGE}" -m 2048 \
+                   -display none -vnc :0 \
+                   -virtfs local,path="$TEST_TMPDIR",mount_tag="$MOUNT_TAG",security_model=none,id=host0 \
+                   -serial pty &>qemu.log &
+QEMU_PID="$!"
+
+timeout=30
+success=0
+while [ "$timeout" -gt 0 ] ; do
+  ((timeout--))
+  if grep -q 'char device redirected to ' qemu.log ; then
+    success=1
+    sleep 1
+    break
+  else
+    echo "No serial console from Qemu found yet [$timeout retries left]"
+    sleep 1
+  fi
+done
+
+if [ "$success" = "1" ] ; then
+  serial_port=$(awk '/char device redirected/ {print $5}' qemu.log)
+else
+  echo "Error: Failed to identify serial console port." >&2
+  cat qemu.log
+  exit 1
+fi
+
+timeout=30
+success=0
+while [ "$timeout" -gt 0 ] ; do
+  ((timeout--))
+  if [ -c "$serial_port" ] ; then
+    success=1
+    sleep 1
+    break
+  else
+    echo "No block device for serial console found yet [$timeout retries left]"
+    sleep 1
+  fi
+done
+
+if [ "$success" = "0" ] ; then
+  echo "Error: can't access serial console block device." >&2
+  exit 1
+fi
+
+"$TEST_PWD"/tests/serial-console-connection \
+  --tries 180 \
+  --port "$serial_port" \
+  --hostname "$VM_HOSTNAME" \
+  --poweroff \
+  "mount -t 9p -o trans=virtio,version=9p2000.L,rw $MOUNT_TAG /mnt && cd /mnt && ./testrunner"
+
+if [ ! -d results ] || [ ! -f ./results/goss.tap ] || [ ! -f ./results/goss.exitcode ]; then
+  echo "Running tests inside VM failed for unknown reason" >&2
+  RC=1
+else
+  RC=$(cat results/goss.exitcode)
+  echo "goss exitcode: $RC"
+
+  cat results/goss.tap
+fi
+
+echo "Finished serial console connection [timeout=${timeout}]."
+
+mv results/* "$TESTS_RESULTSDIR/"
+
+bailout $RC
+
+# EOF