Add combined dockerfile, fly config

Dockerfile

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+FROM lukemathwalker/cargo-chef:latest-rust-1.67.1-slim AS chef
+
+FROM chef AS planner
+COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM chef AS builder 
+COPY --from=planner recipe.json recipe.json
+RUN apt-get update && apt-get install -y libudev-dev clang pkg-config libssl-dev build-essential cmake
+RUN rustup component add rustfmt && update-ca-certificates
+RUN cargo chef cook --release --recipe-path recipe.json
+# Build application
+COPY . .
+RUN cargo build --release --bins
+
+FROM debian:bullseye-slim as base_image
+RUN apt-get update && apt-get -y install ca-certificates libssl1.1
+
+# We do not need the Rust toolchain to run the binary!
+FROM base_image AS runtime
+COPY --from=builder /target/release/server /usr/local/bin
+COPY --from=builder /target/release/worker /usr/local/bin
+COPY --from=builder markets.json .
+COPY --from=builder ca.cer .

fly.toml

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+app = "openbook-candles"
+
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[processes]
+  server = "server markets.json"
+  worker = "worker markets.json"
+
+[[services]]
+  processes = ["server"]
+  internal_port = 8080
+  protocol = "tcp"
+
+  [services.concurrency]
+    type = "connections"
+    hard_limit = 1024
+    soft_limit = 1024