e2e: pull and save runtime logs after each test.

Signed-off-by: Krisztian Litkey <[email protected]>

test/e2e/lib/vm.bash

@@ -588,3 +588,19 @@ vm-stop-log-collection() {
     local log_file="${log_file:-nri-resource-policy.output.txt}"
     vm-command "fuser --kill $log_file 2>/dev/null || :"
 }
+
+vm-seconds-now() {
+    vm-command-q "date +%s"
+}
+
+vm-seconds-since() {
+    echo $(( $(vm-seconds-now) - $1 + 1 ))
+}
+
+vm-pull-journal() {
+    local _service="${service:+-u} ${service:-} "
+    local _since="${since:+--since }${since:-}"
+
+    vm-command-q "journalctl $_service $_since" || \
+        command-error "failed to pull journal logs (service: ${service:-all}, since: ${since:--}"
+}

test/e2e/run.sh

@@ -942,10 +942,17 @@ yaml_in_defaults="CPU=1 MEM=100M ISO=true CPUREQ=1 CPULIM=2 MEMREQ=100M MEMLIM=2
 declare -A kind_count # associative arrays for counting created objects, like kind_count[pod]=1
 eval "${yaml_in_defaults}"
 
+test_start_secs=$(vm-seconds-now)
+
 # Run test/demo
 TEST_FAILURES=""
 test-user-code
 
+test_span_secs="$(vm-seconds-since $test_start_secs)"
+since="-$(( test_span_secs + 5 ))s"
+service="${k8scri}" since="$since" vm-pull-journal > "${TEST_OUTPUT_DIR}"/runtime."${k8scri}".log
+
+
 # If there are any nri-resource-policy logs in the DUT, copy them back to host.
 host-command "$SCP $VM_HOSTNAME:nri-resource-policy.output.txt \"${TEST_OUTPUT_DIR}/\"" ||
     out "copying \"$nri-resource-policy.output.txt\" from VM failed"