apache camel 3 mixin (#826)

* apache camel 3 mixin

* reference original repo of the dashboard

* add job and datasource variable, optimize for kubernetes deployment

* documentation to support camel 4 as it is tested

* updated readme and dashboard to latest camel

apache-camel-mixin/README.md

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+# Apache Camel 3 & 4 - Statistics on Camel Context level
+
+Performance oriented monitoring on Apache Camel 3 & 4 deployments. Works ideally on Kubernetes deployments. Based on Prometheus datasource scraping metrics coming from the micrometer framework. Focuses on analyzing Camel Context, Route & Processor execution times and throughput.
+
+Min required versions : 
+- Apache Camel 3.21+
+- Apache Camel 4.0.0-M3+
+
+## Mixin install commands
+```
+jb init
+
+jb install https://github.com/alainpham/app-archetypes/camel-monitoring/camel-dashboards/
+
+```
+
+## Application instrumentation
+
+Micrometer is supported on Spring Boot, Quarkus and Camel K flavors.
+See the project archetypes quarkus-camel and spring-boot-camel here to have ready to use instrumented Apache Camel projects.
+
+[https://github.com/alainpham/app-archetypes](https://github.com/alainpham/app-archetypes)
+
+
+If you don't want to use the archetype, the instrumentation of the application is as simple very simple like described in the following paragraphs.
+
+### For Quarkus
+
+#### pom.xml
+
+```xml
+<dependency>
+    <groupId>io.micrometer</groupId>
+    <artifactId>micrometer-registry-prometheus</artifactId>
+</dependency>
+<dependency>
+    <groupId>org.apache.camel.quarkus</groupId>
+    <artifactId>camel-quarkus-micrometer</artifactId>
+</dependency>
+```
+
+#### application.properties
+
+```
+quarkus.camel.metrics.enable-message-history=true
+```
+### For Spring Boot
+
+#### pom.xml
+```xml
+<dependency>
+    <groupId>io.micrometer</groupId>
+    <artifactId>micrometer-registry-prometheus</artifactId>
+    </dependency>
+<dependency>
+    <groupId>org.apache.camel.springboot</groupId>
+    <artifactId>camel-micrometer-starter</artifactId>
+</dependency>
+```
+
+#### Configuration class
+
+Create a configuration class in your spring boot project.
+
+```java
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.component.micrometer.eventnotifier.MicrometerExchangeEventNotifier;
+import org.apache.camel.component.micrometer.eventnotifier.MicrometerRouteEventNotifier;
+import org.apache.camel.component.micrometer.messagehistory.MicrometerMessageHistoryFactory;
+import org.apache.camel.component.micrometer.routepolicy.MicrometerRoutePolicyFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+public class Configurator extends RouteBuilder {
+	@Override
+	public void configure() throws Exception {
+		getContext().addRoutePolicyFactory(new MicrometerRoutePolicyFactory());
+		getContext().setMessageHistoryFactory(new MicrometerMessageHistoryFactory());
+		getCamelContext().getManagementStrategy().addEventNotifier(new MicrometerExchangeEventNotifier());
+		getCamelContext().getManagementStrategy().addEventNotifier(new MicrometerRouteEventNotifier());
+	}
+}
+```
+
+## Prometheus scraping
+
+
+Dashboard is designed for metrics scraped from kubernetes deployment
+
+This is the scrape config to be used as an example
+
+```yaml
+# inspired by the prometheus kubernetes helm chart
+global:
+  scrape_interval: 15s
+  external_labels:
+    cluster: cloud
+scrape_configs:
+  - job_name: integrations/kubernetes/applications
+    bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
+    honor_labels: true
+    kubernetes_sd_configs:
+      - role: pod
+        namespaces:
+          own_namespace: true
+    relabel_configs:
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
+        action: keep
+        regex: true
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape_slow]
+        action: drop
+        regex: true
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scheme]
+        action: replace
+        regex: (https?)
+        target_label: __scheme__
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
+        action: replace
+        target_label: __metrics_path__
+        regex: (.+)
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_port, __meta_kubernetes_pod_ip]
+        action: replace
+        regex: (\d+);(([A-Fa-f0-9]{1,4}::?){1,7}[A-Fa-f0-9]{1,4})
+        replacement: '[$2]:$1'
+        target_label: __address__
+      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_port, __meta_kubernetes_pod_ip]
+        action: replace
+        regex: (\d+);((([0-9]+?)(\.|$)){4})
+        replacement: $2:$1
+        target_label: __address__
+      - action: labelmap
+        regex: __meta_kubernetes_pod_annotation_prometheus_io_param_(.+)
+        replacement: __param_$1
+      - action: labelmap
+        regex: __meta_kubernetes_pod_label_(.+)
+      - source_labels: [__meta_kubernetes_namespace]
+        action: replace
+        target_label: namespace
+      - source_labels: [__meta_kubernetes_pod_node_name]
+        action: replace
+        target_label: node
+      - source_labels: [__meta_kubernetes_pod_name]
+        action: replace
+        target_label: pod
+      - source_labels: [__meta_kubernetes_pod_phase]
+        regex: Pending|Succeeded|Failed|Completed
+        action: drop
+```
+
+To scrape instances that are not deployed in kubernetes you can simulate kubernetes labels with the following prometheus configs.
+
+Kubernetes specific labels that need to be simulated are
+ * app_kubernetes_io_part_of
+ * app_kubernetes_io_name
+ * app_kubernetes_io_component
+ * app_kubernetes_io_instance
+ * app_kubernetes_io_version
+ * cluster
+ * node
+ * pod
+ * namespace
+
+```yaml
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+scrape_configs:
+  - job_name: "camel-dev"
+    metrics_path: /q/metrics
+    relabel_configs:
+      - target_label: app_kubernetes_io_part_of
+        replacement: camel-app
+      - target_label: app_kubernetes_io_name
+        replacement: camel-app
+      - target_label: app_kubernetes_io_component
+        replacement: camel-app
+      - target_label: app_kubernetes_io_instance
+        replacement: camel-app-master
+      - target_label: app_kubernetes_io_version
+        replacement: "1.0.0"
+      - target_label: cluster
+        replacement: cloud
+      - target_label: node
+        replacement: worker-01
+      - target_label: pod
+        replacement: camel-app-1
+      - target_label: namespace
+        replacement: camel-ns
+    static_configs:
+      - targets:
+          - "localhost:8090"
+```
+
+
+## Video tutorial material
+
+Watch a demo video here :
+[https://www.youtube.com/watch?v=0LDgv1nIk-Y](https://www.youtube.com/watch?v=0LDgv1nIk-Y)
+
+or here
+[https://odysee.com/@alainpham:8/apache-camel-monitoring-prometheus-grafana:c](https://odysee.com/@alainpham:8/apache-camel-monitoring-prometheus-grafana:c)
+
+Here is the git repo for setting up the demo : [https://github.com/alainpham/app-archetypes](https://github.com/alainpham/app-archetypes)
+
+Feel free to asks questions and send me feedback on [LinkedIn](https://www.linkedin.com/in/alainpham/)
+or [Twitter](https://twitter.com/alainphm)

apache-camel-mixin/jsonnetfile.json

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+{
+  "version": 1,
+  "dependencies": [
+    {
+      "source": {
+        "git": {
+          "remote": "https://github.com/alainpham/app-archetypes.git",
+          "subdir": "camel-monitoring/camel-dashboards/"
+        }
+      },
+      "version": "master"
+    }
+  ],
+  "legacyImports": true
+}

apache-camel-mixin/mixin.libsonnet

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+{
+  grafanaDashboards: {
+    'apache-camel-micrometer.json': (import 'camel-dashboards/apache-camel-micrometer.json'),
+  },
+}