From 2f1ffdb7cd0351e12946a1cd67bebef1df3fe08b Mon Sep 17 00:00:00 2001
From: Dominic Evans <dominic.evans@uk.ibm.com>
Date: Mon, 21 Aug 2023 14:34:08 +0100
Subject: [PATCH] feat(ci): experiment with tcpdump during FVT

It can be useful to inspect protocol captures as part of debugging an
FVT test, particularly if the test is flakey, so experiment with
capturing an uploading a .pcap file.

Signed-off-by: Dominic Evans <dominic.evans@uk.ibm.com>
---
 .github/workflows/fvt.yml | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/fvt.yml b/.github/workflows/fvt.yml
index 5b8ed844be..5e819df4fd 100644
--- a/.github/workflows/fvt.yml
+++ b/.github/workflows/fvt.yml
@@ -38,10 +38,27 @@ jobs:
       uses: actions/setup-go@v4
       with:
         go-version: ${{ matrix.go-version }}
-    - name: Test (Functional)
+    - name: Setup Docker Compose
       run: |
         curl -sSL "https://github.com/docker/compose/releases/download/v2.20.3/docker-compose-$(uname -s)-$(uname -m)" -o /tmp/docker-compose
         sudo install -m755 /tmp/docker-compose "$(dirname $(which docker-compose))"
         docker version --format 'Docker Engine version v{{.Server.Version}}'
         docker-compose version
+    - name: Test (Functional)
+      run: |
+        nohup sudo tcpdump -i any -w "/tmp/fvt-kafka-${{ matrix.kafka-version }}.pcap" portrange 29091-29095 >/dev/null 2>&1 &
+        echo $! >tcpdump.pid
         make test_functional
+    - name: Stop tcpdump
+      if: always()
+      run: |
+        if [ -f "tcpdump.pid" ]; then sudo kill "$(cat tcpdump.pid)" || true; fi
+        if [ -f "/tmp/fvt-kafka-${{ matrix.kafka-version }}.pcap" ]; then chmod a+r "/tmp/fvt-kafka-${{ matrix.kafka-version }}.pcap"; fi
+    - name: Upload pcap file
+      if: always()
+      uses: actions/upload-artifact@v3
+      with:
+        name: fvt-kafka-${{ matrix.kafka-version }}.pcap
+        path: /tmp/fvt-kafka-${{ matrix.kafka-version }}.pcap
+        retention-days: 5
+        if-no-files-found: ignore