root-disks: Only generate DSA host key

mpe · mpe · commit ae6c19c3b92e · 2023-11-21T23:33:37.000+11:00
It seems ssh_deletekeys is no longer, or never was, sufficient to
suppress all SSH host key generation. Newer images (&gt;= Fedora 36)
default to creating multiple host keys types, which is slow when using
TCG. So tell cloud-init to only generate a DSA key.
diff --git a/root-disks/cloud-init-user-data.txt b/root-disks/cloud-init-user-data.txt
@@ -9,3 +9,4 @@ users:
 
 # don't regenerate ssh keys, it takes time for no benefit
 ssh_deletekeys: false
+ssh_genkeytypes: [dsa]

Original file line number	Diff line number	Diff line change
`@@ -9,3 +9,4 @@ users:`
`9`	`9`
`10`	`10`	`# don't regenerate ssh keys, it takes time for no benefit`
`11`	`11`	`ssh_deletekeys: false`
	`12`	`+ssh_genkeytypes: [dsa]`