tool for capturing packets from containers

chris468 · Jun 27, 2024 · b454ffa · b454ffa
1 parent 1a76a1f
commit b454ffa
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/dotfiles/dot_local/bin/capture-container-network b/dotfiles/dot_local/bin/capture-container-network
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+#!/usr/bin/env bash
+
+tmpdir=$(mktemp -d)
+
+docker build -t tcpdump - <<EOF
+FROM ubuntu
+RUN apt-get update && apt-get install -y tcpdump
+ENTRYPOINT ["tcpdump", "-i", "any"]
+EOF
+
+docker run -d --rm --net container:$1 -v $tmpdir:/data tcpdump -i any -A -w /data/packets.pcap
+
+tail -c+0 -f $tmpdir/packets.pcap | wireshark -i -
+