ci: restore docker files

scripts/docker/centos/Dockerfile

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+FROM centos:latest
+
+RUN mkdir -p /opt/parity/data && \
+    chmod g+rwX /opt/parity/data && \
+    mkdir -p /opt/parity/release
+
+COPY parity/parity /opt/parity/release
+
+WORKDIR /opt/parity/data
+
+# exposing default ports
+#
+#           secret
+#      ipfs store     ui   rpc  ws   listener  discovery
+#      ↓    ↓         ↓    ↓    ↓    ↓         ↓
+EXPOSE 5001 8082 8083 8180 8545 8546 30303/tcp 30303/udp
+
+# switch to non-root user
+USER 1001
+
+#if no base path provided, assume it's current workdir
+CMD ["--base-path","."]
+ENTRYPOINT ["/opt/parity/release/parity"]  
+
+
+   
+
+

scripts/docker/centos/Dockerfile.build

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+FROM centos:latest
+
+WORKDIR /build
+
+ADD . /build/parity-ethereum
+
+RUN yum -y update && \
+    yum install -y systemd-devel git make gcc-c++ gcc file binutils && \
+    curl -L "https://cmake.org/files/v3.12/cmake-3.12.0-Linux-x86_64.tar.gz" -o cmake.tar.gz && \
+    tar -xzf cmake.tar.gz && \
+    cp -r cmake-3.12.0-Linux-x86_64/* /usr/ && \
+    curl https://sh.rustup.rs -sSf | sh -s -- -y && \
+    PATH=/root/.cargo/bin:$PATH && \
+    RUST_BACKTRACE=1 && \
+    rustc -vV && \
+    cargo -V && \
+    gcc -v && \
+    g++ -v && \
+    cmake --version && \
+    cd parity-ethereum && \
+    cargo build --verbose --release --features final && \
+    strip /build/parity-ethereum/target/release/parity && \
+    file /build/parity-ethereum/target/release/parity
+
+

scripts/docker/centos/build.sh

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+#!/usr/bin/env sh
+
+# The image name
+PARITY_IMAGE_REPO=${PARITY_IMAGE_REPO:-parity/parity}
+# The tag to be used for builder image
+PARITY_BUILDER_IMAGE_TAG=${PARITY_BUILDER_IMAGE_TAG:-build}
+# The tag to be used for runner image
+PARITY_RUNNER_IMAGE_TAG=${PARITY_RUNNER_IMAGE_TAG:-latest}
+
+echo Building $PARITY_IMAGE_REPO:$PARITY_BUILDER_IMAGE_TAG-$(git log -1 --format="%H")
+docker build --no-cache -t $PARITY_IMAGE_REPO:$PARITY_BUILDER_IMAGE_TAG-$(git log -1 --format="%H") . -f docker/centos/Dockerfile.build
+
+echo Creating $PARITY_BUILDER_IMAGE_TAG-$(git log -1 --format="%H"), extracting binary
+docker create --name extract $PARITY_IMAGE_REPO:$PARITY_BUILDER_IMAGE_TAG-$(git log -1 --format="%H") 
+mkdir docker/centos/parity
+docker cp extract:/build/parity-ethereum/target/release/parity docker/centos/parity
+
+echo Building $PARITY_IMAGE_REPO:$PARITY_RUNNER_IMAGE_TAG
+docker build --no-cache -t $PARITY_IMAGE_REPO:$PARITY_RUNNER_IMAGE_TAG docker/centos/ -f docker/centos/Dockerfile
+
+echo Cleaning up ...
+rm -rf docker/centos/parity
+docker rm -f extract
+docker rmi -f $PARITY_IMAGE_REPO:$PARITY_BUILDER_IMAGE_TAG-$(git log -1 --format="%H")
+
+echo Echoing Parity version:
+docker run $PARITY_IMAGE_REPO:$PARITY_RUNNER_IMAGE_TAG --version
+
+echo Done.