mirror of
https://github.com/jmcorgan/fips.git
synced 2026-08-09 08:14:42 +00:00
Johnathan Corgan
9668807ca4
Tailscale-style sidecar pattern: a FIPS container provides mesh networking, and a companion app container shares its network namespace via network_mode: service:fips. Security model: - iptables enforces strict isolation — the app container can only communicate over the FIPS mesh (fd::/8 via fips0) - No IPv4 access: eth0 restricted to FIPS UDP transport (port 2121) - No IPv6 on eth0: ip6tables blocks all eth0 IPv6 traffic - Only fips0 and loopback are reachable from the app container The sidecar accepts peer configuration via environment variables (FIPS_NSEC, FIPS_PEER_NPUB, FIPS_PEER_ADDR), so it can be pointed at any FIPS node without config file generation. Files: - testing/sidecar/: Dockerfile, Dockerfile.app, docker-compose.yml, entrypoint.sh, .env, resolv.conf, scripts/build.sh - testing/sidecar/README.md: security model, quick-start, architecture, DNS resolution, troubleshooting, production considerations - testing/sidecar/scripts/test-sidecar.sh: 3-node chain integration test verifying link establishment, multi-hop connectivity, and network isolation on each app container - .github/workflows/ci.yml: sidecar integration test matrix entry
34 lines
1.1 KiB
Docker
34 lines
1.1 KiB
Docker
FROM debian:bookworm-slim
|
|
|
|
RUN apt-get update && \
|
|
apt-get install -y --no-install-recommends \
|
|
iproute2 iputils-ping dnsutils dnsmasq iptables \
|
|
openssh-client openssh-server python3 \
|
|
tcpdump netcat-openbsd curl iperf3 && \
|
|
rm -rf /var/lib/apt/lists/*
|
|
|
|
# Setup SSH server with no authentication (test only!)
|
|
RUN mkdir -p /var/run/sshd && \
|
|
ssh-keygen -A && \
|
|
sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config && \
|
|
sed -i 's/#PermitEmptyPasswords no/PermitEmptyPasswords yes/' /etc/ssh/sshd_config && \
|
|
sed -i 's/UsePAM yes/UsePAM no/' /etc/ssh/sshd_config && \
|
|
passwd -d root
|
|
|
|
# dnsmasq: forward .fips to FIPS daemon, everything else to Docker DNS
|
|
RUN printf '%s\n' \
|
|
'port=53' \
|
|
'listen-address=127.0.0.1' \
|
|
'bind-interfaces' \
|
|
'server=/fips/127.0.0.1#5354' \
|
|
'server=127.0.0.11' \
|
|
'no-resolv' \
|
|
>> /etc/dnsmasq.conf
|
|
|
|
COPY fips fipsctl /usr/local/bin/
|
|
RUN chmod +x /usr/local/bin/fips /usr/local/bin/fipsctl
|
|
|
|
COPY entrypoint.sh /entrypoint.sh
|
|
|
|
ENTRYPOINT ["/entrypoint.sh"]
|