Update Docker image to use buster-slim + glibc.

Dockerfile

@@ -1,5 +1,5 @@
 # Build Stage
-FROM ekidd/rust-musl-builder:nightly-2021-02-13 AS builder
+FROM rustlang/rust:nightly-slim AS builder
 USER 0:0
 WORKDIR /home/rust/src
 
@@ -7,16 +7,16 @@ RUN USER=root cargo new --bin revolt
 WORKDIR /home/rust/src/revolt
 COPY Cargo.toml Cargo.lock ./
 COPY src/bin/dummy.rs ./src/bin/dummy.rs
-RUN cargo build --release --bin dummy
+RUN apt-get update && apt-get install -y libssl-dev pkg-config && cargo build --release --bin dummy
 
 COPY assets/templates ./assets/templates
 COPY src ./src
-RUN cargo build --release
+RUN cargo install --locked --path .
 
 # Bundle Stage
-FROM alpine:latest
-RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
-COPY --from=builder /home/rust/src/revolt/target/x86_64-unknown-linux-musl/release/revolt ./
+FROM debian:buster-slim
+RUN apt-get update && apt-get install -y ca-certificates
+COPY --from=builder /usr/local/cargo/bin/revolt ./
 COPY assets ./assets
 EXPOSE 8000
 EXPOSE 9000

set_version.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
-export version=0.5.3-alpha.1
+export version=0.5.3-alpha.2
 echo "pub const VERSION: &str = \"${version}\";" > src/version.rs

src/version.rs

@@ -1 +1 @@
-pub const VERSION: &str = "0.5.3-alpha.1";
+pub const VERSION: &str = "0.5.3-alpha.2";