Merge ~hloeung/launchpad-mojo-specs:master into launchpad-mojo-specs:master

[Haw Loeung]

mojo-lp-git: Bump DH params used, it's year 2020

[Haw Loeung (hloeung)]

Also filed LP:1890098 for dropping support for TLS1.0 and TLS1.1.

[Colin Watson (cjwatson)]

review: Approve

diff --git a/mojo-lp-git/services b/mojo-lp-git/services
index e35d964..1670881 100644
--- a/mojo-lp-git/services
+++ b/mojo-lp-git/services
@@ -71,6 +71,7 @@ turnip:
         default_options: ""
         default_timeouts: "queue 20000, client 3600000, connect 5000, server 3600000"
         enable_monitoring: True
+        global_default_dh_param: 2048
         monitoring_allowed_cidr: "{{ monitoring_allowed_cidr }}"
         monitoring_stats_refresh: 3600
         nagios_context: "{{ nagios_context }}"