Export metrics

Dockerfile

@@ -6,12 +6,11 @@ RUN echo "deb http://archive.debian.org/debian jessie main" > /etc/apt/sources.l
     && rm /etc/apt/sources.list.d/jessie-backports.list
 
 RUN apt-get update \
-    && apt-get install -y apt-transport-https ca-certificates \
-    && apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D \
-    && echo deb https://apt.dockerproject.org/repo debian-jessie main >> /etc/apt/sources.list.d/docker.list \
+    && apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common \
+    && curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - \
+    && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable" \
     && apt-get update \
-    && apt-get install -y docker-engine \
-    && rm -rf /var/lib/apt/lists/*
+    && apt-get install -y docker-ce
 
 USER jenkins
 

README.adoc

@@ -141,3 +141,24 @@ repoURL=<yours_repository>
 branch=<yours_branch>
 sha1=<your_last_commit_id_at_branch> 
 version=<the_James_version_of_this_branch>
+
+=== Tools
+
+==== Prometheus
+
+Prometheus plugin is automatically installed when starting Jenkins from the Dockerfile. 
+This plugin is exporting lot of metrics from Jenkins, in order to read those metrics, you can start Prometheus in docker:
+
+----
+$ docker run -d -p 9090:9090 -v $PWD/prometheus.yml:/etc/prometheus/prometheus.yml --name prometheus prom/prometheus
+----
+
+==== Grafana
+
+If you want to have an UI based on the metrics contained by Prometheus, you can install Grafana in docker:
+
+----
+$ docker run -d -p 3000:3000 --name grafana grafana/grafana
+----
+
+then, you will have to create a Prometheus database from default pattern and import some board (for example: 9964).

plugins.txt

@@ -10,8 +10,10 @@ job-dsl:1.34
 mapdb-api:1.0.6.0
 mask-passwords:2.8
 maven-plugin:2.7.1
+metrics:3.1.2
 parameterized-trigger:2.27
 plain-credentials:1.1
+prometheus:2.0.0
 scm-api:0.2
 ssh-agent:1.7
 subversion:2.5.1

prometheus.yml

@@ -0,0 +1,25 @@
+# my global config
+global:
+  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+  - static_configs:
+    - targets:
+      # - alertmanager:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  - job_name: 'jenkins'
+    metrics_path: /prometheus
+    static_configs:
+    - targets: ['172.17.0.1:8080']