CI: add riscv64 builds

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

.github/workflows/ci.yml

@@ -119,7 +119,7 @@ jobs:
   crossbuild:
     name: Crossbuild Binaries
     needs: [project, linters, protos, man]
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     timeout-minutes: 10
     strategy:
       fail-fast: false
@@ -135,6 +135,8 @@ jobs:
             goarm: "5"
           - goos: linux
             goarch: ppc64le
+          - goos: linux
+            goarch: riscv64
           - goos: freebsd
             goarch: amd64
           - goos: freebsd
@@ -151,7 +153,7 @@ jobs:
       - run: |
           set -e -x
 
-          packages=""
+          packages="libbtrfs-dev"
           platform="${{matrix.goos}}/${{matrix.goarch}}"
           if [ -n "${{matrix.goarm}}" ]; then
             platform+="/v${{matrix.goarm}}"
@@ -178,6 +180,11 @@ jobs:
             echo "CGO_ENABLED=1" >> $GITHUB_ENV
             echo "CC=powerpc64le-linux-gnu-gcc" >> $GITHUB_ENV
             ;;
+          linux/riscv64)
+            packages+=" crossbuild-essential-riscv64"
+            echo "CGO_ENABLED=1" >> $GITHUB_ENV
+            echo "CC=riscv64-linux-gnu-gcc" >> $GITHUB_ENV
+            ;;
           windows/arm/v7)
             echo "CGO_ENABLED=0" >> $GITHUB_ENV
             ;;

.github/workflows/nightly.yml

@@ -36,12 +36,13 @@ jobs:
 
       - name: Install dependencies
         run: |
-          sudo add-apt-repository "deb [arch=arm64,s390x,ppc64el] http://ports.ubuntu.com/ubuntu-ports/ $(lsb_release -sc) main" || true
+          sudo add-apt-repository "deb [arch=arm64,s390x,ppc64el,riscv64] http://ports.ubuntu.com/ubuntu-ports/ $(lsb_release -sc) main" || true
-          sudo add-apt-repository "deb [arch=arm64,s390x,ppc64el] http://ports.ubuntu.com/ubuntu-ports/ $(lsb_release -sc)-updates main" || true
+          sudo add-apt-repository "deb [arch=arm64,s390x,ppc64el,riscv64] http://ports.ubuntu.com/ubuntu-ports/ $(lsb_release -sc)-updates main" || true
 
           sudo dpkg --add-architecture arm64
           sudo dpkg --add-architecture s390x
           sudo dpkg --add-architecture ppc64el
+          sudo dpkg --add-architecture riscv64
 
           sudo apt-get update || true
 
@@ -49,14 +50,17 @@ jobs:
             crossbuild-essential-arm64 \
             crossbuild-essential-s390x \
             crossbuild-essential-ppc64el \
+            crossbuild-essential-riscv64 \
             libseccomp-dev:amd64 \
             libseccomp-dev:arm64 \
             libseccomp-dev:s390x \
             libseccomp-dev:ppc64el \
+            libseccomp-dev:riscv64 \
             libbtrfs-dev:amd64 \
             libbtrfs-dev:arm64 \
             libbtrfs-dev:s390x \
-            libbtrfs-dev:ppc64el
+            libbtrfs-dev:ppc64el \
+            libbtrfs-dev:riscv64
 
       - name: Build amd64
         env:
@@ -96,6 +100,16 @@ jobs:
           make binaries
           mv bin bin_ppc64le
 
+      - name: Build riscv64
+        env:
+          GOOS: linux
+          GOARCH: riscv64
+          CGO_ENABLED: 1
+          CC: riscv64-linux-gnu-gcc
+        run: |
+          make binaries
+          mv bin bin_riscv64
+
       #
       # Upload
       #
@@ -124,6 +138,12 @@ jobs:
           name: linux_ppc64le
           path: src/github.com/containerd/containerd/bin_ppc64le
 
+      - name: Upload artifacts (linux_riscv64)
+        uses: actions/upload-artifact@v1
+        with:
+          name: linux_riscv64
+          path: src/github.com/containerd/containerd/bin_riscv64
+
   windows:
     name: Windows
     runs-on: windows-latest

.github/workflows/release.yml

@@ -60,6 +60,7 @@ jobs:
           - linux/amd64
           - linux/arm64
           - linux/ppc64le
+          - linux/riscv64
           - windows/amd64
     steps:
       - name: Install Go