Add software upgrade report

CHANGELOG.md

@@ -9,6 +9,10 @@ found in the [HISTORY](HISTORY) file.
 
 ## [Unreleased]
 
+### Added
+
+- Added a report of software upgrade logs ([#2466](https://github.com/Uninett/nav/pull/2466), [#2457](https://github.com/Uninett/nav/issues/2457))
+
 ### Fixed
 
 - Avoid running command line scripts twice on every invocation ([#2877](https://github.com/Uninett/nav/issues/2877), [#2878](https://github.com/Uninett/nav/pull/2878))

python/nav/etc/report/report.conf.d/report.conf

@@ -1304,6 +1304,40 @@ $url_remote_as = "bgp?remote_as=$remote_as";
 $order_by = "sysname, peer";
 }
 
+software_upgrades {
+$title = "Software upgrade logs";
+$description = "Listing of all software upgrades for all IP devices";
+$sql = "
+SELECT
+  start_time,
+  sysname,
+  variables.old_sw_version,
+  variables.new_sw_version
+FROM alerthist
+LEFT JOIN netbox USING (netboxid)
+INNER JOIN alerttype USING (alerttypeid)
+LEFT JOIN (
+  SELECT
+    var1.alerthistid,
+    var1.val AS old_sw_version,
+    var2.val AS new_sw_version
+  FROM alerthistvar var1
+  INNER JOIN
+    alerthistvar var2 ON var1.alerthistid = var2.alerthistid
+  WHERE
+    var1.var = 'old_version' AND
+    var2.var = 'new_version'
+  ) AS variables USING (alerthistid)
+WHERE alerttype = 'deviceSwUpgrade'
+";
+
+$order_by = "start_time DESC";
+$url_sysname = "/ipdevinfo/$sysname";
+$name_sysname = "Sysname";
+$name_start_time = "Date/Time";
+$name_sw_ver = "New software revision";
+}
+
 #
 # EOF
 #