Add Dockerfile, Makefile, specs, SSL certs

Dockerfile

@@ -0,0 +1,14 @@
+FROM openresty/openresty:bookworm-buildpack
+
+WORKDIR /opt/app
+
+RUN luarocks install moonscript
+RUN luarocks install busted
+RUN luarocks install luajit-curl
+RUN luarocks install luasocket # needed for testing nginx reverse proxy
+
+RUN openssl req -x509 -newkey rsa:4096 -nodes \
+      -keyout /etc/ssl/private/domain.abc.pem \
+      -out /etc/ssl/certs/domain.abc.pem \
+      -sha256 -days 365 -subj '/CN=domain.abc' \
+      -addext "subjectAltName=DNS:domain.abc"