add centos7 on github actions

.github/workflows/core.yml

@@ -40,3 +40,33 @@ jobs:
           docker login -u ${{ secrets.DOCKERHUB_USER }} \
                        -p ${{ secrets.DOCKERHUB_TOKEN }}
           docker-compose push ubuntu-core
+
+  centos:
+    name: AMD64 CentOS ${{ matrix.centos }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        centos: [7]
+    env:
+      CENTOS: ${{ matrix.centos }}
+    steps:
+      - name: Checkout Milvus
+        uses: actions/checkout@v1
+      - name: Docker Pull
+        shell: bash
+        run: |
+          docker-compose pull --ignore-pull-failures db
+          docker-compose pull --ignore-pull-failures centos-core
+      - name: Docker Build
+        run: |
+          docker-compose run --use-aliases -d db
+          docker-compose run centos-core
+      - name: Docker Push
+        if: success() && github.event_name == 'push' && github.repository == 'milvus-io/milvus'
+        continue-on-error: true
+        shell: bash
+        run: |
+          docker login -u ${{ secrets.DOCKERHUB_USER }} \
+                       -p ${{ secrets.DOCKERHUB_TOKEN }}
+          docker-compose push centos-core

ci/docker/centos-7-core.dockerfile

+ARG arch=amd64
+FROM ${arch}/centos:7
+
+RUN yum install -y epel-release centos-release-scl-rh && yum install -y wget curl which && \
+    wget -qO- "https://cmake.org/files/v3.14/cmake-3.14.3-Linux-x86_64.tar.gz" | tar --strip-components=1 -xz -C /usr/local && \
+    yum install -y ccache make automake git python3-pip libcurl-devel python3-devel boost-static mysql-devel \
+    devtoolset-6-gcc devtoolset-6-gcc-c++ devtoolset-6-gcc-gfortran llvm-toolset-7.0-clang llvm-toolset-7.0-clang-tools-extra lcov \
+    && \
+    rm -rf /var/cache/yum/*
+
+RUN echo "source scl_source enable devtoolset-6" >> /etc/profile.d/devtoolset-6.sh
+RUN echo "source scl_source enable llvm-toolset-7.0" >> /etc/profile.d/llvm-toolset-7.sh
+
+ENV CLANG_TOOLS_PATH="/opt/rh/llvm-toolset-7.0/root/usr/bin"

docker-compose.yml

@@ -2,6 +2,7 @@ version: '3.5'
 
 volumes:
   amd64-ubuntu-18.04-cache:
+  amd64-centos-7-cache:
 
 x-ccache: &ccache
   CCACHE_COMPILERCHECK: content
@@ -44,5 +45,22 @@ services:
       - milvus
     command: *cpp-command
 
+  centos-core:
+    image: ${REPO}:${ARCH}-centos-${CENTOS}-core
+    build:
+      context: .
+      dockerfile: ci/docker/centos-${CENTOS}-core.dockerfile
+      cache_from:
+        - ${REPO}:${ARCH}-centos-${CENTOS}-core
+    shm_size: 2G
+    environment:
+      <<: *ccache
+    volumes: &ubuntu-volumes
+      - .:/milvus:delegated
+      - ${ARCH}-centos-${CENTOS}-cache:/build:delegated
+    networks:
+      - milvus
+    command: *cpp-command
+
 networks:
   milvus: