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openresty-gateway/scripts/ensure-dummy-certs.sh
2026-05-18 22:48:12 +08:00

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#!/usr/bin/env sh
set -eu
# Create temporary self-signed certificates for domains whose certificate files
# are missing. Existing real certificates are never overwritten.
ROOT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
CERT_ROOT="${CERT_ROOT:-./certs/live}"
cd "$ROOT_DIR"
if [ -z "${DOMAINS:-}" ]; then
echo "Error: DOMAINS is required." >&2
exit 1
fi
if ! command -v openssl >/dev/null 2>&1; then
echo "Error: openssl is required." >&2
exit 1
fi
for domain in $DOMAINS; do
cert_dir="$CERT_ROOT/$domain"
cert_file="$cert_dir/fullchain.pem"
key_file="$cert_dir/privkey.pem"
marker_file="$cert_dir/.dummy-init-certs"
tmp_cert_file="$cert_file.tmp"
tmp_key_file="$key_file.tmp"
mkdir -p "$cert_dir"
if [ -f "$cert_file" ] && [ -f "$key_file" ]; then
if [ -f "$marker_file" ]; then
echo "Reusing existing dummy certificate: $domain" >&2
echo "$domain"
continue
fi
echo "Skipping existing real certificate: $domain" >&2
continue
fi
if [ -f "$cert_file" ] || [ -f "$key_file" ]; then
if [ -f "$marker_file" ]; then
echo "Cleaning incomplete dummy certificate: $domain" >&2
rm -f "$cert_file" "$key_file" "$marker_file" "$tmp_cert_file" "$tmp_key_file"
else
echo "Error: incomplete certificate files exist for $domain: $cert_dir" >&2
exit 1
fi
fi
if [ ! -f "$cert_file" ] && [ ! -f "$key_file" ]; then
rm -f "$tmp_cert_file" "$tmp_key_file"
: > "$marker_file"
echo "Creating dummy certificate: $domain" >&2
if ! openssl req -x509 -nodes -newkey rsa:2048 -days 1 \
-keyout "$tmp_key_file" \
-out "$tmp_cert_file" \
-subj "/CN=$domain"; then
rm -f "$tmp_cert_file" "$tmp_key_file" "$marker_file"
exit 1
fi
mv -f "$tmp_key_file" "$key_file"
mv -f "$tmp_cert_file" "$cert_file"
echo "$domain"
fi
done