Add SMTP relay as optional. Adjust formatting.

Readme.md

@@ -19,7 +19,7 @@ Components included in this package:
 * kube-state-metrics
 * CoreDNS
 * Grafana
-* SMTP relay to Gmail for Grafana notifications
+* SMTP relay to Gmail for Grafana notifications (optional)
 
 There are additional modules (disabled by default) to monitor other components of the infra-structure. These can be disabled on `vars.jsonnet` file by setting the module in `installModules` to `false`.
 
@@ -46,6 +46,7 @@ For the ingresses, edit `suffixDomain` to have your cluster URL suffix. This wil
 To deploy the stack, run:
 
 ```bash
+$ make vendor
 $ make deploy
 
 # Or manually:
@@ -57,7 +58,7 @@ $ kubectl apply -f manifests/
 $ until kubectl get customresourcedefinitions servicemonitors.monitoring.coreos.com ; do date; sleep 1; echo ""; done
 $ until kubectl get servicemonitors --all-namespaces ; do date; sleep 1; echo ""; done
 
-$ kubectl apply -f manifests/ # This command sometimes may need to be done twice (to workaround a race condition).
+$ kubectl apply -f manifests/ # This command sometimes may need to be done twice (to workaround a race condition)
 ```
 
 If you get an error from applying the manifests, run the `make deploy` or `kubectl apply -f manifests/` again. Sometimes the resources required to apply the CRDs are not deployed yet.
@@ -90,6 +91,8 @@ $ kubectl apply -f manifests/ # This command sometimes may need to be done twice
 
 If you get an error from applying the manifests, run the `make deploy` or `kubectl apply -f manifests/` again. Sometimes the resources required to apply the CRDs are not deployed yet.
 
+If you enable the SMTP relay for Gmail in `vars.jsonnet`, the pod will be in an error state after deployed since it would not find the user and password on the "smtp-account" secret. To generate, run the `scripts/create_gmail_auth.sh` script.
+
 ## Ingress
 
 Now you can open the applications:

main.jsonnet

@@ -1,13 +1,12 @@
-local vars = import 'vars.jsonnet';
 local utils = import 'utils.libsonnet';
+local vars = import 'vars.jsonnet';
 
 local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-anti-affinity.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-kops-coredns.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-kubeadm.libsonnet')
            // Use http Kubelet targets. Comment to revert to https
-           + (import 'kube-prometheus/kube-prometheus-insecure-kubelet.libsonnet')
+           //  + (import 'kube-prometheus/kube-prometheus-insecure-kubelet.libsonnet')
-           + (import 'smtp_server.jsonnet')
            // Additional modules are loaded dynamically from vars.jsonnet
            + utils.join_objects([module.file for module in vars.modules if module.enabled])
            // Load K3s customized modules
@@ -20,7 +19,12 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
 
 // 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) }
+{
+  ['0prometheus-operator-' + name]: kp.prometheusOperator[name]
+  for name in std.filter((function(name) name != 'serviceMonitor'), std.objectFields(kp.prometheusOperator))
+} +
+// serviceMonitor is separated so that it can be created after the CRDs are ready
+{ 'prometheus-operator-serviceMonitor': kp.prometheusOperator.serviceMonitor } +
 { ['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) }
@@ -28,7 +32,6 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
 { ['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) }
 
 {  // Dynamically generate additional modules from vars.jsonnet
   [std.asciiLower(module.name) + '-' + name]: kp[module.name][name]

vars.jsonnet

@@ -1,9 +1,15 @@
 {
   _config+:: {
-    namespace: 'monitoring'
+    namespace: 'monitoring',
-    },
+  },
   // Enable or disable additional modules
   modules: [
+    {
+      // After deployment, run the create_gmail_auth.sh script from scripts dir.
+      name: 'smtpRelay',
+      enabled: false,
+      file: import 'smtp_relay.jsonnet',
+    },
     {
       name: 'armExporter',
       enabled: false,
@@ -33,15 +39,15 @@
 
   k3s: {
     enabled: false,
-    master_ip: ['192.168.164.120']
+    master_ip: ['192.168.15.15'],
   },
 
   // Domain suffix for the ingresses
-  suffixDomain: '192.168.99.100.nip.io',
+  suffixDomain: '192.168.15.15.nip.io',
   // If TLSingress is true, a self-signed HTTPS ingress with redirect will be created
   TLSingress: true,
-  # If UseProvidedCerts is true, provided files will be used on created HTTPS ingresses.
+  // If UseProvidedCerts is true, provided files will be used on created HTTPS ingresses.
-  # Use a wildcard certificate for the domain like ex. "*.192.168.99.100.nip.io"
+  // Use a wildcard certificate for the domain like ex. "*.192.168.99.100.nip.io"
   UseProvidedCerts: false,
   TLSCertificate: importstr 'server.crt',
   TLSKey: importstr 'server.key',