redlib: add containerfile for custom build

containerfiles/redlib.containerfile

@@ -0,0 +1,13 @@
+FROM rust:alpine AS builder
+RUN apk add --no-cache musl-dev openssl-dev g++ make git perl
+WORKDIR /usr/src/redlib
+# Pull the specific PR branch directly during build
+RUN git clone -b feature/tls-openssl https://github.com/chowder/redlib.git .
+RUN cargo build --release
+
+FROM alpine:3.19
+RUN apk add --no-cache ca-certificates openssl libgcc
+COPY --from=builder /usr/src/redlib/target/release/redlib /usr/local/bin/redlib
+USER nobody
+EXPOSE 8080
+CMD ["redlib"]