Differences

This shows you the differences between two versions of the page.

--- production:shaman.ceph.com [2020/10/21 19:49] – djgalloway
+++ production:shaman.ceph.com [2023/04/06 00:51] (current) – [Summary] dmick
@@ Line 4: / Line 4: @@
 There are three VMs in the [[https://wiki.sepia.ceph.com/doku.php?id=services:ovh#production_services|OVH CI region]] that make up shaman.
-  * shaman.ceph.com is just a load balancing VM
+  * shaman.ceph.com is just a load balancing VM.  Accesses are proxied to either 1.shaman.ceph.com or 2.shaman.ceph.com with an 'upstream shaman' clause in /etc/nginx/nginx.conf, which is then referred to by the site config for shaman.ceph.com.
   * 1.shaman.ceph.com is the primary shaman node that has the postgres DB with all the repo information
   * 2.shaman.ceph.com is a **READ ONLY** backup in the event 1.shaman.ceph.com goes down
+  * 2.shaman.ceph.com can handle write requests because pecan, the web framework, is also aware of the primary/hot standby configuration, and so will redirect writes to 1.shaman.ceph.com on its own, if they appear.
 ===== User Access =====
@@ Line 66: / Line 67: @@
     irvingi_builds = {}
     braggi_builds = {}
+    adami_builds = {}
     rest_of_the_world = {}
     ovh_count = 0
     irvingi_count = 0
     braggi_count = 0
+    adami_count = 0
     for build in builds:
@@ Line 82: / Line 85: @@
             mapping = braggi_builds
             counter = braggi_count
+        elif 'adami' in node_name:
+            mapping = adami_builds
+            counter = adami_count
         else:
             mapping = rest_of_the_world
@@ Line 90: / Line 96: @@
             mapping[node_name] = 1
-    for mapping in [ovh_builds, irvingi_builds, braggi_builds]:
+    for mapping in [ovh_builds, irvingi_builds, braggi_builds, adami_builds]:
         count = 0
         for key, value in mapping.items():