10 files changed, 212 insertions, 0 deletions
diff --git a/prometheus/client/defaults/main.yaml b/prometheus/client/defaults/main.yaml
new file mode 100644
index 0000000..5cc3331
--- /dev/null
+++ b/prometheus/client/defaults/main.yaml
@@ -0,0 +1,6 @@
+---
+
+prometheus_client_apt_packages:
+  - "prometheus-node-exporter"
+  # - "prometheus-postgres-exporter"
+  # - "prometheus-nginx-exporter"
diff --git a/prometheus/client/tasks/main.yaml b/prometheus/client/tasks/main.yaml
new file mode 100644
index 0000000..707b06a
--- /dev/null
+++ b/prometheus/client/tasks/main.yaml
@@ -0,0 +1,29 @@
+---
+
+- name: install prometheus node exporter
+  become: yes
+  apt: name="prometheus-node-exporter"
+
+- name: ensure prometheus node exporter is started
+  become: yes
+  systemd: name="prometheus-node-exporter.service" enabled="yes" state="started"
+
+#   # Nginx
+# - name: check if running nginx
+#   stat: path="/etc/nginx/"
+#   register: stat_nginx_conf
+
+# - name: install prometheus-nginx-exporter
+#   become: yes
+#   apt: name="prometheus-nginx-exporter"
+#   when: stat_nginx_conf.stat.exists
+
+#   # PostgreSQL
+# - name: check if running postgresql
+#   stat: path="/etc/postgresql/"
+#   register: stat_postgresql_conf
+
+# - name: install prometheus-postgresql-exporter
+#   become: yes
+#   apt: name="prometheus-postgres-exporter"
+#   when: stat_postgresql_conf.stat.exists
diff --git a/prometheus/rpi-client/defaults/main.yaml b/prometheus/rpi-client/defaults/main.yaml
new file mode 100644
index 0000000..6ef5b84
--- /dev/null
+++ b/prometheus/rpi-client/defaults/main.yaml
@@ -0,0 +1,9 @@
+---
+
+prometheus_client_rpi_exporter_version: "0.6.0"
+prometheus_client_arch: "{{ansible_architecture}}"
+
+prometheus_client_rpi_src: "https://github.com/lukasmalkmus/rpi_exporter/releases/download/v{{prometheus_client_rpi_exporter_version}}/rpi_exporter-{{prometheus_client_rpi_exporter_version}}.linux-{{prometheus_client_arch}}.tar.gz"
+prometheus_client_rpi_dest: "rpi_exporter-{{prometheus_client_rpi_exporter_version}}.linux-{{prometheus_client_arch}}"
+
+prometheus_client_rpi_collect_gpu_temp: true
diff --git a/prometheus/rpi-client/handlers/main.yaml b/prometheus/rpi-client/handlers/main.yaml
new file mode 100644
index 0000000..7740ce7
--- /dev/null
+++ b/prometheus/rpi-client/handlers/main.yaml
@@ -0,0 +1,5 @@
+---
+
+- name: restart rpi_exporter
+  systemd: name="rpi_exporter.service" state="restarted" daemon_reload="yes"
+  become: yes
diff --git a/prometheus/rpi-client/meta/main.yaml b/prometheus/rpi-client/meta/main.yaml
new file mode 100644
index 0000000..9da06c2
--- /dev/null
+++ b/prometheus/rpi-client/meta/main.yaml
@@ -0,0 +1,4 @@
+---
+
+dependencies:
+  - role: "prometheus/client"
diff --git a/prometheus/rpi-client/tasks/main.yaml b/prometheus/rpi-client/tasks/main.yaml
new file mode 100644
index 0000000..271e70c
--- /dev/null
+++ b/prometheus/rpi-client/tasks/main.yaml
@@ -0,0 +1,43 @@
+---
+
+- name: add prometheus user to video group for rpi GPU stats
+  become: yes
+  user: name="prometheus" groups="video" append="yes"
+
+- name: install prometheus rpi-exporter
+  unarchive:
+    src: "{{prometheus_client_rpi_src}}"
+    remote_src: yes
+    dest: "/tmp"
+    creates: "/tmp/{{prometheus_client_rpi_dest}}"
+  notify: restart rpi_exporter
+
+- name: disable GPU temp scraping
+  become: yes
+  lineinfile:
+    path: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter.service"
+    regexp: "^ExecStart=/usr/local/bin/rpi_exporter"
+    line: "ExecStart=/usr/local/bin/rpi_exporter --no-collector.gpu"
+  when: not prometheus_client_rpi_collect_gpu_temp
+  changed_when: false
+
+- name: install systemd service for rpi-exporter
+  become: yes
+  copy:
+    src: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter.service"
+    remote_src: yes
+    dest: "/lib/systemd/system/rpi_exporter.service"
+  notify: restart rpi_exporter
+
+- name: install rpi-exporter binary
+  become: yes
+  copy:
+    src: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter"
+    remote_src: yes
+    dest: "/usr/local/bin/rpi_exporter"
+    mode: "0755"
+  notify: restart rpi_exporter
+
+- name: ensure systemd service is started
+  become: yes
+  systemd: name="rpi_exporter.service" enabled="yes" state="started"
diff --git a/prometheus/server/defaults/main.yaml b/prometheus/server/defaults/main.yaml
new file mode 100644
index 0000000..53b53c9
--- /dev/null
+++ b/prometheus/server/defaults/main.yaml
@@ -0,0 +1,9 @@
+---
+
+prometheus_server_conf: "prometheus.yml.j2"
+prometheus_server_apt_packages:
+  - "prometheus"
+  - "grafana"
+
+prometheus_server_grafana_plugins:
+  - "flant-statusmap-panel"
diff --git a/prometheus/server/handlers/main.yaml b/prometheus/server/handlers/main.yaml
new file mode 100644
index 0000000..248df86
--- /dev/null
+++ b/prometheus/server/handlers/main.yaml
@@ -0,0 +1,9 @@
+---
+
+- name: restart prometheus service
+  systemd: name="prometheus.service" state="restarted" daemon_reload="yes"
+  become: yes
+
+- name: restart grafana service
+  systemd: name="grafana-server.service" state="restarted" daemon_reload="yes"
+  become: yes
diff --git a/prometheus/server/tasks/main.yaml b/prometheus/server/tasks/main.yaml
new file mode 100644
index 0000000..10d67a5
--- /dev/null
+++ b/prometheus/server/tasks/main.yaml
@@ -0,0 +1,56 @@
+---
+
+- name: add grafana apt key
+  become: yes
+  apt_key: url="https://packages.grafana.com/gpg.key"
+
+- name: add grafana apt repo
+  become: yes
+  apt_repository: repo="deb https://packages.grafana.com/oss/deb stable main"
+
+- name: install prometheus and grafana
+  become: yes
+  apt: name="{{prometheus_server_apt_packages}}" state="latest"
+
+- name: configure prometheus
+  become: yes
+  template:
+    src: "{{prometheus_server_conf}}"
+    dest: "/etc/prometheus/prometheus.yml"
+  notify:
+    - restart prometheus service
+    - restart grafana service
+
+- name: ensure grafana is started
+  become: yes
+  systemd: name="grafana-server.service" enabled="yes" state="started"
+
+- name: install grafana prometheus data source
+  become: yes
+  grafana_datasource:
+    name: "Prometheus"
+    ds_type: "prometheus"
+    ds_url: "http://localhost:9090"
+    grafana_url: "http://localhost:3000"
+    is_default: yes
+  changed_when: false
+
+- name: install grafana plugins
+  become: yes
+  grafana_plugin: name="{{item}}"
+  loop: "{{prometheus_server_grafana_plugins}}"
+
+- name: copy dashboards to target
+  become: yes
+  copy:
+    src: "{{prometheus_server_grafana_dashboard_src}}/{{item}}"
+    dest: "/tmp/"
+    mode: "0640"
+  loop: "{{prometheus_server_grafana_dashboards}}"
+
+# - name: install grafana dashboards
+#   become: yes
+#   grafana_dashboard:
+#     grafana_url: "http://localhost:3000"
+#     path: "/tmp/{{item}}"
+#   loop: "{{prometheus_server_grafana_dashboards}}"
diff --git a/prometheus/server/templates/prometheus.yml.j2 b/prometheus/server/templates/prometheus.yml.j2
new file mode 100644
index 0000000..cf88480
--- /dev/null
+++ b/prometheus/server/templates/prometheus.yml.j2
@@ -0,0 +1,42 @@
+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).
+
+  # Attach these labels to any time series or alerts when communicating with
+  # external systems (federation, remote storage, Alertmanager).
+  external_labels:
+      monitor: 'example'
+
+# Alertmanager configuration
+# alerting:
+#   alertmanagers:
+#   - static_configs:
+#     - targets: ['localhost: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:
+  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
+  - job_name: 'prometheus'
+    # server stats
+    static_configs:
+      - targets:
+          - 'localhost:9090'
+
+  - job_name: node
+    # If prometheus-node-exporter is installed, grab stats about the local machine by default.
+    static_configs:
+      - targets:
+          - 'localhost:9100'
+
+  - job_name: rpi
+    # rpi_exporter
+    static_configs:
+      - targets:
+          - 'localhost:9243'