Fix false-positive "config changed" on every alert, every run

The previous fix compared the whole live 'config' object against the
whole desired one - but Graylog's GET response fills in extra defaults
(query_parameters, filters, use_cron_scheduling, cron_expression,
cron_timezone, ...) that never appear in our alert JSON files. That made
every single alert compare as "different" on every single run, not just
the one actually edited - confirmed live: a re-run PUT-updated all 7
alerts when only alert7's query had changed.

Fixed by comparing only the keys our own files actually author (project
the live config down to just those keys before comparing), and switched
from interpolating JSON into python -c string literals to writing to temp
files and reading them - the former is fragile the moment a value contains
a quote or backslash.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

install-graylog.sh

@@ -498,39 +498,71 @@ step_alerts() {
   # Same "compare content, PUT-update if changed" fix as step_pipeline_rules()/
   # step_pipelines() - an alert's title never changes when its query/threshold
   # does, so a plain title-exists check would silently skip the update
-  # forever. Confirmed live this session: alert7's query was fixed in git
-  # (vendor:accel-ppp -> vendor:accel-ppp AND event_type:*) but a re-run
-  # kept reporting "already exists" with the old, buggy query still live.
-  local existing_defs
-  existing_defs="$(gcurl GET /events/definitions)"
-  local f title id body current_config desired_config
+  # forever.
+  #
+  # Uses files instead of interpolating JSON into python -c strings (fragile
+  # with quotes/backslashes), and compares only the keys OUR file authors in
+  # "config" - not the whole object. Confirmed live this is necessary:
+  # Graylog's GET response fills in extra defaults (query_parameters, filters,
+  # use_cron_scheduling, cron_expression, cron_timezone, ...) that never
+  # appear in our alert JSON files, so a naive whole-object comparison always
+  # reports "changed" and PUTs every single alert on every single run, not
+  # just the one actually edited.
+  local existing_defs_file
+  existing_defs_file="$(mktemp)"
+  gcurl GET /events/definitions > "$existing_defs_file"
+
+  local f title id body_file
   for f in "$SCRIPT_DIR"/alerts/alert*.json; do
     [ -f "$f" ] || continue
     title="$(python3 -c "import json;print(json.load(open('$f'))['title'])")"
-    body="$(sed \
+    body_file="$(mktemp)"
+    sed \
       -e "s/__NETWORK_STREAM_ID__/$NETWORK_STREAM_ID/" \
       -e "s/__SERVERS_STREAM_ID__/$SERVERS_STREAM_ID/" \
       -e "s/__DISCORD_NOTIFICATION_ID__/$notif_id/" \
-      "$f")"
-    id="$(echo "$existing_defs" | python3 -c "import json,sys;d=json.load(sys.stdin);print(next((e['id'] for e in d['event_definitions'] if e['title']=='$title'),''))")"
+      "$f" > "$body_file"
+
+    id="$(python3 -c "
+import json
+d = json.load(open('$existing_defs_file'))
+print(next((e['id'] for e in d['event_definitions'] if e['title'] == '$title'), ''))
+")"
+
     if [ -n "$id" ]; then
-      current_config="$(echo "$existing_defs" | python3 -c "import json,sys;d=json.load(sys.stdin);print(json.dumps(next(e['config'] for e in d['event_definitions'] if e['id']=='$id'),sort_keys=True))")"
-      desired_config="$(echo "$body" | python3 -c "import json,sys;print(json.dumps(json.load(sys.stdin)['config'],sort_keys=True))")"
-      if [ "$current_config" = "$desired_config" ]; then
+      if python3 -c "
+import json, sys
+existing = json.load(open('$existing_defs_file'))
+current_full = next(e['config'] for e in existing['event_definitions'] if e['id'] == '$id')
+desired = json.load(open('$body_file'))['config']
+filtered_current = {k: current_full.get(k) for k in desired}
+sys.exit(0 if filtered_current == desired else 1)
+"; then
         skip "alert '$title' already up to date ($id)"
+        rm -f "$body_file"
         continue
       fi
-      gcurl PUT "/events/definitions/$id" "$(echo "$body" | python3 -c "import json,sys;d=json.load(sys.stdin);d['id']='$id';print(json.dumps(d))")" >/dev/null
+      python3 -c "
+import json
+d = json.load(open('$body_file'))
+d['id'] = '$id'
+print(json.dumps(d))
+" > "${body_file}.put"
+      gcurl PUT "/events/definitions/$id" "$(cat "${body_file}.put")" >/dev/null
       gcurl PUT "/events/definitions/$id/schedule" "" >/dev/null
       ok "updated alert '$title' ($id) - config changed"
+      rm -f "$body_file" "${body_file}.put"
       continue
     fi
-    id="$(gcurl POST /events/definitions "{\"entity\": ${body}, \"share_request\": {\"selected_grantee_capabilities\": {}}}" \
+
+    id="$(gcurl POST /events/definitions "{\"entity\": $(cat "$body_file"), \"share_request\": {\"selected_grantee_capabilities\": {}}}" \
       | python3 -c "import json,sys;print(json.load(sys.stdin).get('id',''))")"
     [ -n "$id" ] || die "alert '$title' failed to create"
     gcurl PUT "/events/definitions/$id/schedule" "" >/dev/null
     ok "created and enabled alert '$title' ($id)"
+    rm -f "$body_file"
   done
+  rm -f "$existing_defs_file"
 }
 
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