Load additional modules dynamically from vars module definition

main.jsonnet

@@ -1,14 +1,13 @@
 local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
 local vars = import 'vars.jsonnet';
-local enabledModules = [module.name for module in vars.modules if module.enabled];
 
 local join_objects(objs) =
-    local aux(arr, i, running) =
-        if i >= std.length(arr) then
-            running
-        else
-            aux(arr, i + 1, running + arr[i]) tailstrict;
-    aux(objs, 0, {});
+  local aux(arr, i, running) =
+    if i >= std.length(arr) then
+      running
+    else
+      aux(arr, i + 1, running + arr[i]) tailstrict;
+  aux(objs, 0, {});
 
 local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-anti-affinity.libsonnet')
@@ -18,49 +17,26 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-insecure-kubelet.libsonnet')
            + (import 'base_operator_stack.jsonnet')
            + (import 'smtp_server.jsonnet')
-           // Additional Modules
+           // Additional modules are loaded dynamically from vars.jsonnet
            + join_objects([module.file for module in vars.modules if module.enabled])
            // Load image versions last to override default from modules
            + (import 'image_sources_versions.jsonnet');
 
+// Generate core modules
 { ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) }
-{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
-{ ['prometheus-adapter-' + name]: kp.prometheusAdapter[name] for name in std.objectFields(kp.prometheusAdapter) } +
-{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
-{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) } +
-{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) } +
-{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) } +
-{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) } +
-{ ['ingress-' + name]: kp.ingress[name] for name in std.objectFields(kp.ingress) } +
+{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) }
+{ ['prometheus-adapter-' + name]: kp.prometheusAdapter[name] for name in std.objectFields(kp.prometheusAdapter) }
+{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) }
+{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) }
+{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) }
+{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) }
+{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) }
+{ ['ingress-' + name]: kp.ingress[name] for name in std.objectFields(kp.ingress) }
 { ['smtp-server-' + name]: kp.smtpServer[name] for name in std.objectFields(kp.smtpServer) }
-// Additional Modules
 
-{
-    [std.asciiLower(moduleName) + '-' + objName]: {kp.moduleName[objName]}
-    for objName in [std.objectFields(kp[moduleName]] for moduleName in enabledModules
+{  // Dynamically generate additional modules from vars.jsonnet
+  [std.asciiLower(module.name) + '-' + name]: kp[module.name][name]
+  for module in vars.modules
+  if module.enabled
+  for name in std.objectFields(kp[module.name])
 }
-
-
-// {
-//   local items = ["a", "b", "c"],
-//   joined: {
-//     [x + i]: {
-//       data: "x = %s and i = %s" % [x, i],
-//     } for i in ["1", "2"] for x in items
-//   }
-// }
-
-// { ['arm-exporter-' + name]: kp.armExporter[name] for name in std.objectFields(kp.armExporter) }
-
-// {[std.asciiLower(moduleName) + '-' + objName]: kp.moduleName[objName] for objName in [std.objectFields(kp[moduleName]) for moduleName in enabledModules]}
-
-// (if vars.installModules['arm-exporter'] then
-//    { ['arm-exporter-' + name]: kp.armExporter[name] for name in std.objectFields(kp.armExporter) } else {}) +
-// (if vars.installModules.metallb then
-//    { ['metallb-' + name]: kp.metallb[name] for name in std.objectFields(kp.metallb) } else {}) +
-// (if vars.installModules.traefik then
-//    { ['traefik-' + name]: kp.traefik[name] for name in std.objectFields(kp.traefik) } else {}) +
-// (if vars.installModules['ups-exporter'] then
-//    { ['ups-exporter-' + name]: kp.upsExporter[name] for name in std.objectFields(kp.upsExporter) } else {}) +
-// (if vars.installModules['elastic-exporter'] then
-//    { ['elasticexporter-' + name]: kp.elasticExporter[name] for name in std.objectFields(kp.elasticExporter) } else {})

manifests/ingress-alertmanager-main.yaml

@@ -5,7 +5,7 @@ metadata:
   namespace: monitoring
 spec:
   rules:
-  - host: alertmanager.192.168.99.102.nip.io
+  - host: alertmanager.192.168.99.100.nip.io
     http:
       paths:
       - backend:

manifests/ingress-grafana.yaml

@@ -5,7 +5,7 @@ metadata:
   namespace: monitoring
 spec:
   rules:
-  - host: grafana.192.168.99.102.nip.io
+  - host: grafana.192.168.99.100.nip.io
     http:
       paths:
       - backend:

manifests/ingress-prometheus-k8s.yaml

@@ -5,7 +5,7 @@ metadata:
   namespace: monitoring
 spec:
   rules:
-  - host: prometheus.192.168.99.102.nip.io
+  - host: prometheus.192.168.99.100.nip.io
     http:
       paths:
       - backend:

manifests/prometheus-prometheus.yaml

@@ -26,7 +26,7 @@ spec:
       namespace: monitoring
       port: web
   baseImage: carlosedp/prometheus
-  externalUrl: http://prometheus.192.168.99.102.nip.io
+  externalUrl: http://prometheus.192.168.99.100.nip.io
   nodeSelector:
     beta.kubernetes.io/os: linux
   replicas: 1

vars.jsonnet

@@ -3,27 +3,27 @@
   modules: [
     {
       name: 'armExporter',
-      enabled: true,
+      enabled: false,
       file: import 'arm_exporter.jsonnet',
     },
     {
       name: 'upsExporter',
-      enabled: true,
+      enabled: false,
       file: import 'ups_exporter.jsonnet',
     },
     {
       name: 'metallbExporter',
-      enabled: true,
+      enabled: false,
       file: import 'metallb.jsonnet',
     },
     {
       name: 'traefikExporter',
-      enabled: true,
+      enabled: false,
       file: import 'traefik.jsonnet',
     },
     {
       name: 'elasticExporter',
-      enabled: true,
+      enabled: false,
       file: import 'elasticsearch_exporter.jsonnet',
     },
   ],