Fixes #2: fix docker builds

Docker layer caching broke the build. target/release/libcache.so that
was copied over from "builder" stage img was the result of the first
stage of compilation(dependencies only and no source code)

So the object file didn't contain anything that resembled this repo's source
code.

This patch employs a slightly modified caching technique(see Dockerfile)
which fixes the issue

.github/workflows/linux.yml

@@ -37,22 +37,23 @@ jobs:
           profile: minimal
           override: false
 
-            #      - name: install virtualenv
-            #        run: pip install virtualenv
-            #
-          #      - name: install dependencies
-          #        run: make env
-          #          #      - name: build docker image
-          #        run: make docker-build
-          #
-          #- name: start docker container
-          #  run: make docker-run
+      - name: install virtualenv
+        run: pip install virtualenv
 
-          #- name: run tests
-          #  run: make test
+      - name: install dependencies
+        run: make env
 
-          #- name: stop docker container
-          #  run: make docker-stop
+      - name: build docker image
+        run: make docker-build
+
+      - name: start docker container
+        run: make docker-run
+
+      - name: run tests
+        run: make test
+
+      - name: stop docker container
+        run: make docker-stop
 
       - name: Login to DockerHub
         if: (github.ref == 'refs/heads/master' || github.event_name == 'push') && github.repository == 'mCaptcha/cache'

Dockerfile

@@ -13,15 +13,13 @@ RUN set -ex; \
     DEBIAN_FRONTEND=noninteractive \
     apt-get install -y --no-install-recommends redis clang gcc
 COPY Cargo.toml Cargo.lock /src/
-RUN mkdir -p /src/src && touch /src/src/lib.rs
-RUN cargo build --release 
-COPY . .
+COPY src/lib.rs /src/src/lib.rs
+RUN cargo build --release || true
+COPY . /src/
+RUN ls /src/src
 RUN cargo build --release 
 
-
-#FROM redisfab/redis:${REDIS_VER}-${ARCH}-${OSNICK}
 FROM redis:${REDIS_VER}-${OSNICK}
-
 ARG REDIS_VER
 
 ENV LIBDIR /usr/lib/redis/modules
@@ -29,6 +27,5 @@ WORKDIR /data
 RUN mkdir -p "$LIBDIR"
 
 COPY --from=builder /src/target/release/libcache.so "$LIBDIR"
-
 EXPOSE 6379
 CMD ["redis-server", "--loadmodule", "/usr/lib/redis/modules/libcache.so"]

Makefile

@@ -19,16 +19,14 @@ doc:
 	cargo doc --no-deps --workspace --all-features --document-private-items
 
 docker:
-	docker build -t mcaptcha/cache:broken-build .
-	#docker build -t mcaptcha/cache:0.1.0-beta -t mcaptcha/cache:latest  .
-	#docker push mcaptcha/cache:0.1.0-beta 
-	docker push mcaptcha/cache:broken-build
+	docker build -t mcaptcha/cache:0.1.0-beta -t mcaptcha/cache:latest  .
+	docker push mcaptcha/cache:0.1.0-beta 
 
 docker-build:
 	docker build -t mcaptcha/cache:0.1.0-beta -t mcaptcha/cache:latest  .
 
 docker-run:
-	docker run --name=$(DOCKER_CONTAINER) \
+	docker run -d --name=$(DOCKER_CONTAINER) \
 		--publish 6379:6379 \
 		mcaptcha/cache:latest