Use mysql/mysql-server image for arm64 architecture (#184)

harness/attributes/docker.yml

@@ -8,8 +8,9 @@ attributes:
       resources:
         memory: 100Mi
     mysql:
-      image: = 'mysql:' ~ @('services.mysql.version')
-      version: 5.7
+      # prefer native platform mysql image. _/mysql doesn't have arm64 images
+      image: "= host_architecture() == 'amd64' ? 'mysql' : 'mysql/mysql-server'"
+      version: 8.0
       environment:
         MYSQL_DATABASE: = @('database.name')
         MYSQL_USER: = @('database.user')

harness/config/functions.yml

@@ -244,3 +244,23 @@ function('path_split', [paths]): |
   });
 
   = $splitPaths;
+
+function('host_architecture', [style]): |
+  #!php
+  $arch = php_uname('m');
+  if ($style == 'native') {
+    $result = $arch;
+  } else if (empty($style) || $style == 'go') {
+    $goArchMap = [
+        'i386' => '386',
+        'x86_64' => 'amd64',
+        'aarch64' => 'arm64',
+        'armv7l' => 'arm',
+        'armv6l' => 'arm',
+    ];
+    $result = $goArchMap[$arch] ?? $arch;
+  } else {
+    throw new \Exception(sprintf('error: unknown host_architecture style "%s"', $style));
+  }
+
+  = $result;

test

@@ -62,7 +62,8 @@ function verify_or_exit() {
 
   if [[ -f "${expected_containers}" ]]; then
     while read -r container; do
-      if [ ! "$(docker ps -q -f name=ci-go-sample_"$container")" ]; then
+      # in docker-compose v2, underscores were replaced with dashes as a separator in container names
+      if [ ! "$(docker ps -q -f name=ci-go-sample_"$container")" ] && [ ! "$(docker ps -q -f name=ci-go-sample-"$container")" ]; then
         echo "The ${container} container is not running, but it should be."
         COMPOSE_PROJECT_NAME=ci-go-sample docker-compose logs --tail 100 "$container"
         exit 1