Testing automated builds on Dockerhub for multi-arch.

Dockerfile.aarch64

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+FROM golang:1.11.1 as builder
+LABEL stage=intermediate
+
+COPY qemu-aarch64-static /usr/bin/
+
+#compile linux only
+
+ENV \
+    GOOS=linux \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq \
+    VOLANTMQ_BUILD_FLAGS="-i" \
+    VOLANTMQ_PLUGINS_DIR=/usr/lib/volantmq/plugins
+
+RUN mkdir -p $VOLANTMQ_WORK_DIR/bin
+RUN mkdir -p $VOLANTMQ_WORK_DIR/conf
+RUN mkdir -p $VOLANTMQ_PLUGINS_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+
+# install dep tool
+RUN go get -u github.com/golang/dep/cmd/dep
+
+# build server
+RUN \
+    go get -v github.com/ahmetb/govvv && \
+    go get -v github.com/VolantMQ/vlapi/... && \
+    go get -v github.com/VolantMQ/volantmq && \
+    cd $GOPATH/src/github.com/VolantMQ/volantmq && \
+    govvv build $VOLANTMQ_BUILD_FLAGS -o $VOLANTMQ_WORK_DIR/bin/volantmq
+
+# build debug plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/debug && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/debug.so
+
+# build health plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/health && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/health.so
+
+#build persistence plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/persistence/bbolt/plugin && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/persistence_bbolt.so
+
+FROM ubuntu
+ENV \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq
+
+COPY --from=builder $VOLANTMQ_WORK_DIR $VOLANTMQ_WORK_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+ENV VOLANTMQ_PLUGINS_DIR=$VOLANTMQ_WORK_DIR/plugins
+
+# default config uses mqtt:1883
+EXPOSE 1883
+CMD ["volantmq"]

Dockerfile.amd64

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+FROM golang:1.11.1 as builder
+LABEL stage=intermediate
+
+#compile linux only
+
+ENV \
+    GOOS=linux \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq \
+    VOLANTMQ_BUILD_FLAGS="-i" \
+    VOLANTMQ_PLUGINS_DIR=/usr/lib/volantmq/plugins
+
+RUN mkdir -p $VOLANTMQ_WORK_DIR/bin
+RUN mkdir -p $VOLANTMQ_WORK_DIR/conf
+RUN mkdir -p $VOLANTMQ_PLUGINS_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+
+# install dep tool
+RUN go get -u github.com/golang/dep/cmd/dep
+
+# build server
+RUN \
+    go get -v github.com/ahmetb/govvv && \
+    go get -v github.com/VolantMQ/vlapi/... && \
+    go get -v github.com/VolantMQ/volantmq && \
+    cd $GOPATH/src/github.com/VolantMQ/volantmq && \
+    govvv build $VOLANTMQ_BUILD_FLAGS -o $VOLANTMQ_WORK_DIR/bin/volantmq
+
+# build debug plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/debug && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/debug.so
+
+# build health plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/health && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/health.so
+
+#build persistence plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/persistence/bbolt/plugin && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/persistence_bbolt.so
+
+FROM ubuntu
+ENV \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq
+
+COPY --from=builder $VOLANTMQ_WORK_DIR $VOLANTMQ_WORK_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+ENV VOLANTMQ_PLUGINS_DIR=$VOLANTMQ_WORK_DIR/plugins
+
+# default config uses mqtt:1883
+EXPOSE 1883
+CMD ["volantmq"]

Dockerfile.armhf

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+FROM golang:1.11.1 as builder
+LABEL stage=intermediate
+
+COPY qemu-arm-static /usr/bin/
+
+#compile linux only
+
+ENV \
+    GOOS=linux \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq \
+    VOLANTMQ_BUILD_FLAGS="-i" \
+    VOLANTMQ_PLUGINS_DIR=/usr/lib/volantmq/plugins
+
+RUN mkdir -p $VOLANTMQ_WORK_DIR/bin
+RUN mkdir -p $VOLANTMQ_WORK_DIR/conf
+RUN mkdir -p $VOLANTMQ_PLUGINS_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+
+# install dep tool
+RUN go get -u github.com/golang/dep/cmd/dep
+
+# build server
+RUN \
+    go get -v github.com/ahmetb/govvv && \
+    go get -v github.com/VolantMQ/vlapi/... && \
+    go get -v github.com/VolantMQ/volantmq && \
+    cd $GOPATH/src/github.com/VolantMQ/volantmq && \
+    govvv build $VOLANTMQ_BUILD_FLAGS -o $VOLANTMQ_WORK_DIR/bin/volantmq
+
+# build debug plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/debug && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/debug.so
+
+# build health plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/health && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/health.so
+
+#build persistence plugins
+RUN \
+    cd $GOPATH/src/github.com/VolantMQ/vlapi/plugin/persistence/bbolt/plugin && \
+    go build $VOLANTMQ_BUILD_FLAGS -buildmode=plugin -o $VOLANTMQ_WORK_DIR/plugins/persistence_bbolt.so
+
+FROM ubuntu
+ENV \
+    VOLANTMQ_WORK_DIR=/usr/lib/volantmq
+
+COPY --from=builder $VOLANTMQ_WORK_DIR $VOLANTMQ_WORK_DIR
+
+# Create environment directory
+ENV PATH $VOLANTMQ_WORK_DIR/bin:$PATH
+ENV VOLANTMQ_PLUGINS_DIR=$VOLANTMQ_WORK_DIR/plugins
+
+# default config uses mqtt:1883
+EXPOSE 1883
+CMD ["volantmq"]

hooks/build

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+#!/bin/bash
+# thanks https://stackoverflow.com/questions/54578066/how-to-build-a-docker-image-on-a-specific-architecture-with-docker-hub
+docker build \
+    --file "${DOCKERFILE_PATH}" \
+    --build-arg BUILD_DATE="$(date -u +"%Y-%m-%dT%H:%M:%SZ")" \
+    --build-arg VCS_REF="$(git rev-parse --short HEAD)" \
+    --tag "$IMAGE_NAME" \
+    .

hooks/post_checkout

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+#!/bin/bash
+
+BUILD_ARCH=$(echo "${DOCKERFILE_PATH}" | cut -d '.' -f 2)
+echo $BUILD_ARCH
+[ "${BUILD_ARCH}" == "Dockerfile" ] && \
+    { echo 'qemu-user-static: Download not required for current arch'; exit 0; }
+
+QEMU_USER_STATIC_ARCH=$([ "${BUILD_ARCH}" == "armhf" ] && echo "${BUILD_ARCH::-2}" || echo "${BUILD_ARCH}")
+QEMU_USER_STATIC_DOWNLOAD_URL="https://github.com/multiarch/qemu-user-static/releases/download"
+QEMU_USER_STATIC_LATEST_TAG=$(curl -s https://api.github.com/repos/multiarch/qemu-user-static/tags \
+    | grep 'name.*v[0-9]' \
+    | head -n 1 \
+    | cut -d '"' -f 4)
+
+curl -SL "${QEMU_USER_STATIC_DOWNLOAD_URL}/${QEMU_USER_STATIC_LATEST_TAG}/x86_64_qemu-${QEMU_USER_STATIC_ARCH}-static.tar.gz" \
+    | tar xzv

hooks/pre-build

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+#!/bin/bash
+
+BUILD_ARCH=$(echo "${DOCKERFILE_PATH}" | cut -d '.' -f 2)
+
+[ "${BUILD_ARCH}" == "Dockerfile" ] && \
+    { echo 'qemu-user-static: Registration not required for current arch'; exit 0; }
+
+docker run --rm --privileged multiarch/qemu-user-static:register --reset

hooks/sh

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+ #!/bin/qemu-arm-static /bin/sh.real
+
+set -o errexit
+
+cp /bin/sh.real /bin/sh  
+/bin/sh "$@"
+cp /usr/bin/sh-shim /bin/sh