Initial best effort support for Arch Linux

Author: ktf

archlinux20250601-builder/packer.json

@@ -0,0 +1,34 @@
+{
+  "_comment": "Arch Linux builder X-enabled",
+  "variables": {
+    "REPO": "registry.cern.ch/alisw/archlinux20250601-builder",
+    "TAG": "latest"
+  },
+  "builders": [
+    {
+      "type": "docker",
+      "image": "archlinux:base-devel",
+      "commit": true
+    }
+  ],
+  "provisioners": [
+    {
+      "type": "shell",
+      "script": "provision.sh"
+    }
+  ],
+  "post-processors": [
+    [
+      {
+        "type": "docker-tag",
+        "repository": "{{user `REPO`}}",
+        "tag": "{{user `TAG`}}"
+      },
+      {
+        "type": "shell-local",
+        "inline": ["echo 'The image was built successfully. To push the image to the registry, you can run: docker push {{user `REPO`}}:{{user `TAG`}}'"]
+      }
+
+    ]
+  ]
+}

archlinux20250601-builder/provision.sh

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+#!/usr/bin/bash
+set -exo pipefail
+
+pacman -Syu --noconfirm
+pacman -S --noconfirm git python3 python-pip which gcc \
+                      make gcc-fortran \
+                      base-devel libxpm libxft glu gsl \
+                      libuv tbb xerces-c re2 libwebsockets grpc