Merge ~pjdc/ubuntu-mirror-charm/+git/ubuntu-mirror-charm:old-releases-warty-signing-key into ubuntu-mirror-charm:master

[Paul Collins]

use ubuntu-archive-removed-keys.gpg when verifying old-releases, because we check warty

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[Haw Loeung (hloeung)]

LGTM

review: Approve (+1)

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision 8d85893055a886f277a6aba0643da4306bc0d3ec

diff --git a/files/check-mirror.sh b/files/check-mirror.sh
index 5d8aa4e..979e851 100755
--- a/files/check-mirror.sh
+++ b/files/check-mirror.sh
@@ -88,6 +88,9 @@ case ${role} in
     cloud-images)
         keyring_file=/usr/share/keyrings/ubuntu-cloudimage-keyring.gpg
         ;;
+    old-releases)
+        keyring_file=/usr/share/keyrings/ubuntu-archive-removed-keys.gpg
+        ;;
     *)
         keyring_file=/usr/share/keyrings/ubuntu-archive-keyring.gpg
         ;;