Merge ~cjwatson/launchpad-mojo-specs:prod-containers into launchpad-mojo-specs:master

[Colin Watson]

Hardcode machine names for production deployment

On production, we want a carefully-arranged combination of VMs and LXD
containers. Setting this up requires hardcoding some machine names.
This assumes that four machines have been created prior to deployment:
we currently expect 2 and 3 to be manually-deployed VMs on 0 and 1
respectively.

[Colin Watson (cjwatson)]

Self-approving this, as we need to get on with the production deployment and the worst case here is that that very deployment initially fails and needs to be adjusted.

review: Approve

diff --git a/mojo-lp-git/services b/mojo-lp-git/services
index 3ce7e20..f445fd8 100644
--- a/mojo-lp-git/services
+++ b/mojo-lp-git/services
@@ -63,6 +63,9 @@ turnip:
 {%- else %}
       num_units: 2
 {%- endif %}
+{%- if stage_name == "production" %}
+      to: ['lxd:0', 'lxd:1']
+{%- endif %}
       # Don't expose!  Not all of the ports are public.
       options:
         default_options: ""
@@ -120,6 +123,9 @@ turnip:
       charm: nfs-ganesha
       constraints: "{{ nfs_constraints }}"
       num_units: 1
+{%- if stage_name == "production" %}
+      to: ['lxd:0']
+{%- endif %}
       options:
         install_keys: |
           - null
@@ -135,6 +141,9 @@ turnip:
 {%- else %}
       num_units: 2
 {%- endif %}
+{%- if stage_name == "production" %}
+      to: [2, 3]
+{%- endif %}
       options:
         log_hosts_allow: "{{ log_hosts_allow }}"
         nagios_context: "{{ nagios_context }}"
@@ -145,6 +154,9 @@ turnip:
 {%- if devel %}
       num_units: 1
       to: [turnip-pack-backend]
+{%- elif stage_name == "production" %}
+      num_units: 2
+      to: [2, 3]
 {%- else %}
       num_units: 2
       to: [turnip-pack-backend, turnip-pack-backend]
@@ -158,6 +170,9 @@ turnip:
 {%- if devel %}
       num_units: 1
       to: [turnip-pack-backend]
+{%- elif stage_name == "production" %}
+      num_units: 2
+      to: [2, 3]
 {%- else %}
       num_units: 2
       to: [turnip-pack-backend, turnip-pack-backend]
@@ -171,6 +186,9 @@ turnip:
 {%- if devel %}
       num_units: 1
       to: [turnip-pack-backend]
+{%- elif stage_name == "production" %}
+      num_units: 2
+      to: [2, 3]
 {%- else %}
       num_units: 2
       to: [turnip-pack-backend, turnip-pack-backend]
@@ -187,6 +205,9 @@ turnip:
 {%- if devel %}
       num_units: 1
       to: [turnip-pack-backend]
+{%- elif stage_name == "production" %}
+      num_units: 2
+      to: [2, 3]
 {%- else %}
       num_units: 2
       to: [turnip-pack-backend, turnip-pack-backend]
@@ -207,6 +228,9 @@ turnip:
 {%- if devel %}
       num_units: 1
       to: [turnip-pack-backend]
+{%- elif stage_name == "production" %}
+      num_units: 2
+      to: [2, 3]
 {%- else %}
       num_units: 2
       to: [turnip-pack-backend, turnip-pack-backend]