Add playbook and packer file for building httptester (#18107)

test/utils/docker/httptester/packer.json

@@ -0,0 +1,43 @@
+{
+    "builders": [
+        {
+            "type": "docker",
+            "image": "nginx:alpine",
+            "commit": true,
+            "run_command": [
+                "-d",
+                "-i",
+                "-t",
+                "{{.Image}}",
+                "/bin/sh"
+            ]
+        }
+    ],
+    "provisioners": [
+        {
+            "type": "shell",
+            "inline": [
+                "set -x",
+                "[ -f /sbin/apk ] && /sbin/apk add -U ansible || true",
+                "[ -f /usr/bin/dnf ] && /usr/bin/dnf -y install ansible python2-dnf || true",
+                "[ ! -f /usr/bin/dnf -a -f /usr/bin/yum ] && /usr/bin/yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-`grep -o [0-9] /etc/redhat-release | head -1`.noarch.rpm || true",
+                "[ ! -f /usr/bin/dnf -a -f /usr/bin/yum ] && /usr/bin/yum -y install ansible || true",
+                "[ -f /usr/bin/apt-get ] && /usr/bin/apt-get update && /usr/bin/apt-get -y install ansible || true"
+            ]
+        },
+        {
+            "type": "ansible-local",
+            "playbook_file": "httptester.yml",
+            "playbook_dir": "{{template_dir}}",
+            "extra_arguments": [
+                "-v"
+            ]
+        }
+    ],
+    "post-processors": [
+        {
+            "type": "docker-tag",
+            "repository": "ansible/httptester"
+        }
+    ]
+}