Take the collector name as argument when generating sql_exporter configs

In neon_collector_autoscaling.jsonnet, the collector name is hardcoded
to neon_collector_autoscaling. This issue manifests itself such that
sql_exporter would not find the collector configuration.

Signed-off-by: Tristan Partin <tristan@neon.tech>

compute/Makefile

@@ -20,12 +20,14 @@ neon_collector_autoscaling.yml: $(jsonnet_files)
 sql_exporter.yml: $(jsonnet_files)
 	JSONNET_PATH=etc jsonnet \
 		--output-file etc/$@ \
+		--tla-str collector_name=neon_collector \
 		--tla-str collector_file=neon_collector.yml \
 		etc/sql_exporter.jsonnet
 
 sql_exporter_autoscaling.yml: $(jsonnet_files)
 	JSONNET_PATH=etc jsonnet \
 		--output-file etc/$@ \
+		--tla-str collector_name=neon_collector_autoscaling \
 		--tla-str collector_file=neon_collector_autoscaling.yml \
 		--tla-str application_name=sql_exporter_autoscaling \
 		etc/sql_exporter.jsonnet

compute/etc/sql_exporter.jsonnet

@@ -1,4 +1,4 @@
-function(collector_file, application_name='sql_exporter') {
+function(collector_name, collector_file, application_name='sql_exporter') {
   // Configuration for sql_exporter for autoscaling-agent
   // Global defaults.
   global: {
@@ -28,7 +28,7 @@ function(collector_file, application_name='sql_exporter') {
     // Collectors (referenced by name) to execute on the target.
     // Glob patterns are supported (see <https://pkg.go.dev/path/filepath#Match> for syntax).
     collectors: [
-      'neon_collector',
+      collector_name,
     ],
   },