fix dockerfile, static build on alpine

Author: lovasoa

.dockerignore

@@ -1,4 +1,7 @@
 /target
 site.db
 docs/
-README.md
+README.md
+Dockerfile
+.dockerignore
+.github/

Dockerfile

@@ -1,20 +1,21 @@
-FROM rust:1.63-slim-buster as builder
+FROM rust:1.63-alpine3.16 as builder
 RUN rustup component add clippy rustfmt
+RUN apk add --no-cache musl-dev
 WORKDIR /usr/src/sqlpage
 RUN cargo init .
 COPY Cargo.toml Cargo.lock .
 RUN cargo build --release
 COPY . .
-RUN cargo check --release && \
+RUN touch src/main.rs && \
     cargo clippy --release && \
     cargo fmt --all -- --check && \
-    cargo install --path .
+    cargo test --release && \
+    cargo build --release
 
-FROM debian:buster-slim
-RUN apt-get update && apt-get upgrade --yes && apt-get install --yes openssl
+FROM alpine:3.16
 RUN rm -rf /var/lib/apt/lists/*
-COPY --from=builder /usr/local/cargo/bin/sqlpage /usr/local/bin/sqlpage
-RUN groupadd -r sqlpage && useradd --no-log-init -r -g sqlpage sqlpage
+COPY --from=builder /usr/src/sqlpage/target/release/sqlpage /usr/local/bin/sqlpage
+RUN addgroup -S sqlpage && adduser -S sqlpage -G sqlpage
 WORKDIR /var/www
 USER sqlpage
 EXPOSE 8080