README.md

@@ -182,7 +182,7 @@ Flags:
       --video                   enable support for video files
 ```
 
-## Building the Docker image
+## Building the Docker container
-From inside the cloned repository, build the image using the following command:
+From inside the `docker/` subdirectory, build the image using the following command:
 
-`REGISTRY=<registry url> LATEST=yes TAG=alpine ./build-docker.sh`
+`REGISTRY=<registry url> LATEST=yes TAG=alpine ./build.sh`

docker/Dockerfile

@@ -7,12 +7,12 @@ FROM --platform=$BUILDPLATFORM golang:$TAG AS build
 ARG app
 
 # install dependencies
-RUN apk add --update-cache upx
+RUN apk add --update-cache git upx
 
-# copy source files into the container
+# clone
-COPY . /src/$app/
+RUN git clone https://git.seedno.de/seednode/$app /src/$app
 
-# build, strip, and compress the binary
+# build and compress the binary
 WORKDIR /src/$app
 ARG TARGETOS TARGETARCH
 RUN CGO_ENABLED=0 \
@@ -27,7 +27,7 @@ FROM scratch
 ARG app
 
 # copy in user info
-COPY --chown=root:root --chmod=0400 docker/passwd /etc/passwd
+COPY --chown=root:root --chmod=0400 passwd /etc/passwd
 
 # run as nonroot
 USER nonroot

docker/Dockerfile.debug

@@ -6,16 +6,20 @@ ARG TAG
 FROM --platform=$BUILDPLATFORM golang:$TAG AS build
 ARG app
 
-# copy source files into the container
+# install dependencies
-COPY . /src/$app/
+RUN apk add --update-cache git upx
 
-# build the binary
+# clone
+RUN git clone https://git.seedno.de/seednode/$app /src/$app
+
+# build and compress the binary
 WORKDIR /src/$app
 ARG TARGETOS TARGETARCH
 RUN CGO_ENABLED=0 \
     GOOS=$TARGETOS \
     GOARCH=$TARGETARCH \
-    go build -trimpath -tags timetzdata -o $app \
+    go build -trimpath -ldflags "-s -w" -tags timetzdata -o $app \
+    && upx --best --lzma $app \
     && chmod 500 $app
 
 # set up final stage
@@ -23,7 +27,7 @@ FROM --platform=$BUILDPLATFORM alpine:latest
 ARG app
 
 # copy in user info
-COPY --chown=root:root --chmod=0400 docker/passwd /etc/passwd
+COPY --chown=root:root --chmod=0400 passwd /etc/passwd
 
 # run as root for debug
 USER root
@@ -34,5 +38,5 @@ COPY --from=build --chown=root:root --chmod=0005 /src/$app/$app /$app
 # listen on an unprivileged port
 EXPOSE 8080
 
-# launch a shell by default
+# run application
 ENTRYPOINT ["/bin/ash"]

docker/build.sh

@@ -14,7 +14,7 @@ registry="${REGISTRY:-local}"
 image_name="roulette"
 
 # set image version
-image_version="$(grep "ReleaseVersion" cmd/root.go | head -n1 | awk '{print $4}' | sed 's/\"//g')"
+image_version="$(grep "ReleaseVersion" ../cmd/root.go | head -n1 | awk '{print $4}' | sed 's/\"//g')"
 
 # platforms to build for
 platforms="linux/amd64"
@@ -27,7 +27,7 @@ docker buildx build \
                     --build-arg TAG="${tag}" \
                     -t "${registry}/${image_name}:${image_version}" \
                     $(if [ "${LATEST}" == "yes" ]; then echo "-t ${registry}/${image_name}:latest"; fi) \
-                    -f docker/Dockerfile . \
+                    -f Dockerfile . \
                     --load
 
 # push image to remote registry
@@ -35,7 +35,7 @@ docker buildx build --platform "${platforms}" \
                     --build-arg TAG="${tag}" \
                     -t "${registry}/${image_name}:${image_version}" \
                     $(if [ "${LATEST}" == "yes" ]; then echo "-t ${registry}/${image_name}:latest"; fi) \
-                    -f docker/Dockerfile . \
+                    -f Dockerfile . \
                     --push
 
 # copy debug image to local image repository
@@ -43,7 +43,7 @@ docker buildx build \
                     --build-arg TAG="${tag}" \
                     -t "${registry}/${image_name}:${image_version}-debug" \
                     $(if [ "${LATEST}" == "yes" ]; then echo "-t ${registry}/${image_name}:debug"; fi) \
-                    -f docker/Dockerfile.debug . \
+                    -f Dockerfile.debug	 . \
                     --load
 
 # push debug image to remote registry
@@ -51,5 +51,5 @@ docker buildx build --platform "${platforms}" \
                     --build-arg TAG="${tag}" \
                     -t "${registry}/${image_name}:${image_version}-debug" \
                     $(if [ "${LATEST}" == "yes" ]; then echo "-t ${registry}/${image_name}:debug"; fi) \
-                    -f docker/Dockerfile.debug . \
+                    -f Dockerfile.debug . \
                     --push