fix: branch name and cargo init

Author: hrideshmg

.github/workflows/ghcr-deploy.yml

@@ -5,7 +5,7 @@ name: Create and publish Docker image to GHCR
 on:
   workflow_dispatch:
   push:
-    branches: ['master']
+    branches: ['main']
 
 jobs:
   build-and-push-image:

Dockerfile

@@ -1,11 +1,10 @@
 # Build Stage
 FROM rust:slim-bullseye AS builder
-WORKDIR /build
+WORKDIR /builder
 
+RUN cargo init
 # Compile deps in a separate layer (for caching)
 COPY Cargo.toml Cargo.lock ./
-# Cargo requires at least one source file for compiling dependencies
-RUN mkdir src && echo "fn main() { println!(\"Hello, world!\"); }" > src/main.rs
 RUN apt-get update
 RUN apt install -y pkg-config libssl-dev
 RUN cargo build --release
@@ -18,5 +17,5 @@ RUN cargo build --release
 
 # Release Stage
 FROM debian:bullseye-slim AS release
-COPY --from=builder /build/target/release/root /usr/local/bin
+COPY --from=builder /builder/target/release/root /usr/local/bin
 CMD ["/usr/local/bin/root"]