feat: manage more ceph requirements (#288)

- add ceph-common to provide utilities for managing ceph
- add root and sysadmin ssh keys for ceph deployments

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/288

site/profiles/manifests/accounts/root.pp

@@ -0,0 +1,18 @@
+# manage the root user
+class profiles::accounts::root (
+  Optional[Array[String]] $sshkeys = undef,
+) {
+
+  if $sshkeys {
+    accounts::user { 'root':
+      sshkeys => $sshkeys,
+    }
+  }
+
+  file {'/root/.config':
+    ensure => directory,
+    owner  => 'root',
+    group  => 'root',
+    mode   => '0600',
+  }
+}