add circleci config

.circleci/config.yml

@@ -0,0 +1,50 @@
+version: 2
+
+workflows:
+  version: 2
+  #  normal_build_and_test:
+  #    jobs:
+  #    - build_and_test
+
+  release:
+    jobs:
+      - release:
+          context: xtrabackup-build
+          filters:
+            tags:
+              only:
+                - "/.*/"
+            branches:
+              ignore: /.*/
+
+jobs:
+  release:
+    environment:
+      CI: "true"
+      BUILDKIT_PROGRESS: plain
+    # Builds on arm64
+    machine:
+      image: ubuntu-2004:202101-01
+    resource_class: arm.medium
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - xtrabackup-v1
+      - run: ./.circleci/linux_circle_vm_setup.sh
+      - run: cd xtrabackup-8.0 >/dev/null && ./build.sh && popd >/dev/null
+      - save_cache:
+          key: xtrabackup-v1
+          paths:
+            - xtrabackup-8.0/percona-xtrabackup
+      - run:
+          name: Upload artifacts to GitHub release page
+          command: |
+            if [ ! -z "${GTOKEN}" ]; then
+              echo "GTOKEN provided, pushing release ${CIRCLE_TAG}"
+              echo ${GTOKEN} | gh auth login --with-token
+              gh release upload --clobber ${CIRCLE_TAG} xtrabackup-8.0/install/xtrabackup-*tar.gz*
+              echo | gh auth logout --hostname=github.com
+            else
+             echo "GTOKEN not provided, not pushing release $CIRCLE_TAG"
+            fi

.circleci/linux_circle_vm_setup.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -eu -o pipefail
+set -x
+
+case $(arch) in
+  x86_64)
+    ARCH=amd64
+    ;;
+  aarch64)
+    ARCH=arm64
+    ;;
+  *)
+    echo "Unknown architecture" && exit 1
+    ;;
+esac
+
+
+# Get recent qemu to avoid constant qemu crashes on Ubuntu 20.04
+# Incomprehensible discussions of the problem at
+# https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1928075
+sudo add-apt-repository ppa:jacob/virtualisation
+
+sudo apt-get -qq update && sudo apt-get -qq install -y docker-ce-cli binfmt-support  qemu qemu-user qemu-user-static >/dev/null
+
+
+# Get recent buildx
+mkdir -p ~/.docker/cli-plugins && curl -sSL -o ~/.docker/cli-plugins/docker-buildx https://github.com/docker/buildx/releases/download/v0.6.3/buildx-v0.6.3.linux-${ARCH} && chmod +x ~/.docker/cli-plugins/docker-buildx
+
+docker buildx version
+
+if ! docker buildx inspect ddev-builder-multi --bootstrap >/dev/null; then docker buildx create --name ddev-builder-multi --use; fi
+docker buildx inspect --bootstrap
+
+# Install github's gh tool
+wget -O /tmp/gh.deb https://github.com/cli/cli/releases/download/v2.1.0/gh_2.1.0_linux_${ARCH}.deb && sudo dpkg -i /tmp/gh.deb >/dev/null

README.md

@@ -0,0 +1,4 @@
+# xtrabackup build
+
+This repo builds xtrabackup-8.0 for arm64 machine. It's used by 
+drud/mysql-arm64-images and [ddev](https://github.com/drud/ddev).