Add dockerfile build

.dockerignore

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+.git
+.idea/
+target/

.github/workflows/publish-to-gpr.yml

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+name: Publish Docker image to GitHub Package Registry
+on: push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/master' # Only on master
+
+    steps:
+    - name: Copy Repo Files
+      uses: actions/checkout@master
+
+     #This Action Emits 2 Variables, IMAGE_SHA_NAME and IMAGE_URL 
+     #which you can reference in subsequent steps
+    - name: Publish Docker Image to GPR
+      uses: machine-learning-apps/gpr-docker-publish@master
+      id: docker
+      with:
+        IMAGE_NAME: 'discord-vocodes'
+        DOCKERFILE_PATH: 'Dockerfile'
+        BUILD_CONTEXT: '.'
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Dockerfile

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+# Unsure if I want to create minimal images yet that run under Alpine Linux.
+# I have instructions for that here: https://hub.docker.com/r/echelon/testcontainer/dockerfile
+FROM ubuntu:xenial as build
+WORKDIR /tmp
+RUN apt-get update \
+    && apt-get install -y \
+        build-essential \
+        curl \
+        libsodium-dev \
+        libssl-dev \
+        libssl1.0.0 \
+        pkg-config \
+        unzip \
+        wget
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
+    | sh  -s -- --default-toolchain stable -y
+
+COPY Cargo.lock . 
+COPY Cargo.toml .
+COPY src/ ./src
+COPY script/ ./script
+
+RUN $HOME/.cargo/bin/cargo fetch
+
+#RUN $HOME/.cargo/bin/cargo build
+RUN $HOME/.cargo/bin/cargo build --release
+
+# Final image
+FROM ubuntu:xenial
+WORKDIR /
+# SSL certs are required to make requests
+COPY --from=build /etc/ssl /etc/ssl
+# Shared libs are necessary
+COPY --from=build /lib/x86_64-linux-gnu/libssl.so.1.0.0 /lib/x86_64-linux-gnu
+COPY --from=build /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /lib/x86_64-linux-gnu
+#COPY --from=build /tmp/target/debug/discord-vocodes /
+COPY --from=build /tmp/target/release/discord-vocodes /
+COPY --from=build /tmp/script /
+
+CMD LD_LIBRARY_PATH=/usr/lib /discord-vocodes
+

script/launch.sh

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+#!/bin/sh
+
+# We can't run this as a CronJob since it isn't guaranteed to be scheduled
+# to the same nodes. (Maybe there's a way for Kubernetes to do that?)
+
+mkdir -p "${DOWNLOAD_DIR}"
+mkdir -p "${TEMP_DIR}"
+
+while :; do
+  ./discord-vocodes
+  echo "Sleeping for ${SLEEP_TIMEOUT} seconds at $(date)"
+  sleep "${SLEEP_TIMEOUT}"
+done

src/vocodes_api.rs

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+use hyper::Body;
+use hyper::Client as HyperClient;
+use hyper::Request;
+use hyper_tls::HttpsConnector;
+
+const VOCODES_SPEAK_ENDPOINT : &'static str = "http://mumble.stream/speak";
+
+pub async fn fetch(text: &str, speaker: &str) -> Result<Vec<u8>, Box<dyn std::error::Error + Send + Sync>> {
+  let mut request = format!("{{\"speaker\": \"{}\", \"text\": \"{}\"}}", speaker, text);
+
+  println!("Req: {}", request);
+
+  let https = HttpsConnector::new();
+  let client = HyperClient::builder()
+    .build::<_, hyper::Body>(https);
+
+  let req = Request::builder()
+    .uri(VOCODES_SPEAK_ENDPOINT)
+    .method("POST")
+    .header("Origin", "https://vo.codes")
+    .header("User-Agent", "Vocodes Discord Bot")
+    .header("Connection", "keep-alive")
+    .header("Content-Type", "application/json")
+    .body(Body::from(request))?;
+
+  let resp = client.request(req).await?;
+
+  println!("Status: {}", resp.status());
+
+  let bytes = hyper::body::to_bytes(resp.into_body()).await?;
+  let result = bytes.to_vec();
+
+  println!("Length: {}", result.len());
+
+  Ok(result)
+}