[rhcos-4.16] tests: add fips.enable.tls
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| FROM registry.redhat.io/rhel10/nginx-126:10.1 | ||
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| ADD nginx.conf "${NGINX_CONF_PATH}" | ||
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| COPY index.html /usr/share/nginx/html/index.html | ||
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| # TLS material | ||
| USER 0 | ||
| COPY tls/ /etc/nginx/tls/ | ||
| RUN chown -R 1001:0 /etc/nginx/tls | ||
| USER 1001 | ||
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| CMD ["nginx", "-g", "daemon off;"] |
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| # fips-nginx Container | ||||||
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| This is used by the `fips.enable.https` test to verify that using | ||||||
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| TLS works in FIPS mode by having Ignition fetch a remote resource | ||||||
| over HTTPS with FIPS compatible algorithms. | ||||||
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| See https://catalog.redhat.com/en/software/containers/rhel10/nginx-126/677d3718e58b5a1ae5598058#overview | ||||||
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| To build the container using command: | ||||||
| `./build.sh <IP>` | ||||||
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| To run the container image using command: | ||||||
| `podman run -d -p 8443:8443 --name fips-nginx fips-nginx` | ||||||
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| Remember to create firewall-rules to allow port 8443: | ||||||
| ``` | ||||||
| gcloud compute firewall-rules create allow-nginx-fips-8443 \ | ||||||
| --action ALLOW \ | ||||||
| --direction INGRESS \ | ||||||
| --rules tcp:8443 \ | ||||||
| --source-ranges 0.0.0.0/0 \ | ||||||
| --target-tags nginx-fips-server \ | ||||||
| --description "Allow FIPS test access to nginx on port 8443" | ||||||
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| gcloud compute instances add-tags rhcos-fips-test \ | ||||||
| --zone us-central1-a \ | ||||||
| --tags nginx-fips-server | ||||||
| ``` | ||||||
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| #!/usr/bin/env bash | ||||||||
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| # Run the image using command: | ||||||||
| # podman run -d --name fips-nginx -p 8443:8443 fips-nginx | ||||||||
| set -euo pipefail | ||||||||
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| # Check if argument is provided | ||||||||
| if [ $# -eq 0 ]; then | ||||||||
| echo "Error: Missing IP address argument" | ||||||||
| echo "Usage: $0 <ip-address>" | ||||||||
| exit 1 | ||||||||
| fi | ||||||||
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| ip="$1" | ||||||||
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| tmpdir="$(mktemp -d)" | ||||||||
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| cp Containerfile ${tmpdir} | ||||||||
| cd ${tmpdir} | ||||||||
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| # Prepare index.html | ||||||||
| cat <<EOF > index.html | ||||||||
| This file was served from an RHCOS FIPS-hardened server. | ||||||||
| EOF | ||||||||
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| # Prepare nginx.conf | ||||||||
| cat <<EOF > nginx.conf | ||||||||
| events {} | ||||||||
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| http { | ||||||||
| server { | ||||||||
| listen 8443 ssl; | ||||||||
| server_name _; | ||||||||
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| # ---- FIPS-only TLS ---- | ||||||||
| ssl_protocols TLSv1.2; | ||||||||
| ssl_prefer_server_ciphers on; | ||||||||
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| ssl_ciphers ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256; | ||||||||
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| ssl_certificate /etc/nginx/tls/fips-server.crt; | ||||||||
| ssl_certificate_key /etc/nginx/tls/fips-server.key; | ||||||||
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| location / { | ||||||||
| root /usr/share/nginx/html; | ||||||||
| index index.html; | ||||||||
| } | ||||||||
| } | ||||||||
| } | ||||||||
| EOF | ||||||||
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| mkdir -p tls | ||||||||
| pushd tls/ | ||||||||
| # Prepare openssl.cnf | ||||||||
| # The IP must point to an nginx server configured with FIPS-compliant ciphers | ||||||||
| cat <<SSLEOF > openssl.cnf | ||||||||
| [ req ] | ||||||||
| default_bits = 3072 | ||||||||
| distinguished_name = dn | ||||||||
| prompt = no | ||||||||
| string_mask = utf8only | ||||||||
| req_extensions = req_ext | ||||||||
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| [ dn ] | ||||||||
| CN = FIPS TLS Test Server | ||||||||
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| [ req_ext ] | ||||||||
| keyUsage = critical, digitalSignature, keyEncipherment | ||||||||
| extendedKeyUsage = critical, serverAuth | ||||||||
| subjectAltName = @alt_names | ||||||||
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| [ alt_names ] | ||||||||
| IP.1 = ${ip} | ||||||||
| SSLEOF | ||||||||
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| # Prepare key and crt | ||||||||
| ## Generate the private key (FIPS-approved) | ||||||||
| openssl genpkey \ | ||||||||
| -algorithm RSA \ | ||||||||
| -pkeyopt rsa_keygen_bits:3072 \ | ||||||||
| -out fips-server.key | ||||||||
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| ## Generate CSR (still FIPS-only) | ||||||||
| openssl req -new -key fips-server.key -out fips-server.csr -config openssl.cnf | ||||||||
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| ## Self-sign the certificate (TLS-compatible + FIPS) | ||||||||
| openssl x509 -req \ | ||||||||
| -in fips-server.csr \ | ||||||||
| -signkey fips-server.key \ | ||||||||
| -out fips-server.crt \ | ||||||||
| -days 3650 \ | ||||||||
| -sha256 \ | ||||||||
| -extfile openssl.cnf \ | ||||||||
| -extensions req_ext | ||||||||
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| # Verify SAN present | ||||||||
| openssl x509 -in fips-server.crt -noout -text | grep -A2 "Subject Alternative Name" | ||||||||
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| openssl verify \ | ||||||||
| -provider fips \ | ||||||||
| -CAfile fips-server.crt \ | ||||||||
| fips-server.crt | ||||||||
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| rm fips-server.csr openssl.cnf | ||||||||
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| popd | ||||||||
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| podman build -t fips-nginx . | ||||||||
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This test relies on a hardcoded IP address (
34.172.244.189). This makes the test brittle and dependent on an external resource that may not be available or may change over time, leading to test flakiness and maintenance overhead. It would be more robust to have the test environment dynamically set up a local server for this purpose, or use a DNS name that can be pointed to a new server if needed. If a dynamic setup is not feasible, consider moving the IP address to a configuration variable to make it easier to update.