Install both ramdisks in the ipa downloader

- Make the different ipa-ramdisk packages installable side by side
- Clean the ipa-downloader Dockerfile from what seems to be unneeded
- Get both images in
- Use zstd instead of xz for better speed
- Check sums before redoing certs integration
- Add value to metal3 chart to select between architectures
- Get the two ESP available as well

Signed-off-by: Nicolas Belouin <nicolas.belouin@suse.com>

metal3-chart/charts/baremetal-operator/templates/configmap-ironic.yaml

@@ -5,6 +5,7 @@
   {{- $ironicApiHost := print $ironicIP ":6385" }}
   {{- $ironicBootHost := print $ironicIP ":6180" }}
   {{- $ironicCacheHost := print $ironicIP ":6180" }}
+  {{- $deployArch := .Values.global.deployArchitecture }}
 
 apiVersion: v1
 data:
@@ -19,8 +20,9 @@ data:
     {{- $protocol = "http" }}
   {{- end }}
   CACHEURL: "{{ $protocol }}://{{ $ironicCacheHost }}/images"
-  DEPLOY_KERNEL_URL: "{{ $protocol }}://{{ $ironicBootHost }}/images/ironic-python-agent.kernel"
-  DEPLOY_RAMDISK_URL: "{{ $protocol }}://{{ $ironicBootHost }}/images/ironic-python-agent.initramfs"
+  DEPLOY_KERNEL_URL: "{{ $protocol }}://{{ $ironicBootHost }}/images/ironic-python-agent-{{ $deployArch }}.kernel"
+  DEPLOY_RAMDISK_URL: "{{ $protocol }}://{{ $ironicBootHost }}/images/ironic-python-agent-{{ $deployArch }}.initramfs"
+  DEPLOY_ARCHITECTURE: "{{ $deployArch }}"
 kind: ConfigMap
 metadata:
   name: baremetal-operator-ironic