debuginfod: tweak server configuration and proxy frontend

Codify a few debuginfod process parameters that appear to be working well.

Adjust incoming proxies to redirect the "/" URL to a wiki page, as
requested by FESCO.

files/debuginfod/sysconfig.debuginfod

@@ -1,8 +1,8 @@
 #
 DEBUGINFOD_PORT="8002"
-DEBUGINFOD_VERBOSE="-vv"
+#DEBUGINFOD_VERBOSE="-vv"
 
-DEBUGINFOD_PATHS="--fdcache-fds=512 -t3600 -R /mnt/fedora_koji_prod/koji/packages -X /data/ -I \.(module_f|fc)(32|33|34|35)[.+].*\.rpm"
+DEBUGINFOD_PATHS="--fdcache-fds=512 -t43200 -g604800 -c6 -vv -R /mnt/fedora_koji_prod/koji/packages -X /data/ -I \.(module_f|fc)(32|33|34|35)[.+].*\.rpm"
 
 # prefer reliability/durability over performance
 #DEBUGINFOD_PRAGMAS="-D 'pragma synchronous=full;'"

playbooks/include/proxies-redirects.yml

@@ -872,3 +872,10 @@
     website: qa.fedoraproject.org
     path: /
     target: https://fedoraproject.org/wiki/QA
+
+  # redirects for debuginfod main page
+  - role: httpd/redirect
+    shortname: debuginfod
+    website: debuginfod.fedoraproject.org
+    regex: /(index.html)?$
+    target: https://fedoraproject.org/wiki/Debuginfod

playbooks/include/proxies-reverseproxy.yml

@@ -751,8 +751,17 @@
   - role: httpd/reverseproxy
     website: debuginfod.fedoraproject.org
     destname: debuginfod
-    remotepath: /
-    localpath: /
+    remotepath: /buildid/
+    localpath: /buildid/
+    proxyurl: http://debuginfod01:8002
+    proxyopts: "connectiontimeout=600 timeout=600 keepalive=on"
+    tags: debuginfod
+
+  - role: httpd/reverseproxy
+    website: debuginfod.fedoraproject.org
+    destname: debuginfod
+    remotepath: /metrics
+    localpath: /metrics
     proxyurl: http://debuginfod01:8002
     proxyopts: "connectiontimeout=600 timeout=600 keepalive=on"
     tags: debuginfod