Merge pull request gcgarner#78 from pelted/master

Adds Prometheus and add-ons containers

Author: Slyke

.templates/prometheus/build.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+DOCKER_COMPOSE_PATH=./.tmp/docker-compose.tmp.yml
+TEMPLATE_PATH=./.templates/prometheus
+
+if [[ ! -f $DOCKER_COMPOSE_PATH ]]; then
+  echo "[Prometheus] Warning: $DOCKER_COMPOSE_PATH does not exist."
+fi
+
+# Configure Prometheus Add-ons
+
+option_selection=$(whiptail --title "Select Prometheus Options" --checklist --separate-output \
+  "Use the [SPACEBAR] to select add-on containers from the list below." 20 78 12 -- \
+  "node-exporter" "monitor this computer " "ON" \
+  "cadvisor-arm" "monitor full container stack " "ON" \
+  3>&1 1>&2 2>&3)
+
+mapfile -t selected_options <<< "$option_selection"
+
+# (cat $TEMPLATE_PATH/service.yml; echo) >> $DOCKER_COMPOSE_PATH
+
+for option in "${selected_options[@]}"; do
+  # insert add-on service
+  (cat $TEMPLATE_PATH/service_${option}.yml; echo) >> $DOCKER_COMPOSE_PATH
+
+  # include add-on in depends_on
+  sed -i.bak -e "/depends_on:/a\\
+    \\ \\ \\ \\ \\ \\ - ${option}" $DOCKER_COMPOSE_PATH
+done
+
+# clean up
+rm ${DOCKER_COMPOSE_PATH}.bak

.templates/prometheus/config.yml

@@ -0,0 +1,10 @@
+global:
+  scrape_interval:     10s
+  evaluation_interval: 10s
+
+# scrape_configs:
+#   - job_name: iotstack
+#     static_configs:
+#     - targets:
+#       - cadvisor:8080
+#       - node-exporter:9100

.templates/prometheus/prometheus.env

@@ -0,0 +1,17 @@
+  prometheus:
+    container_name: prometheus
+    image: prom/prometheus:latest
+    restart: unless-stopped
+    user: "0"
+    ports:
+      - 9090:9090
+    env_file:
+      - ./services/prometheus/prometheus.env
+    depends_on:
+    volumes:
+      - ./services/prometheus/config.yml:/etc/prometheus/config.yml
+      - ./volumes/prometheus/data:/data
+    command:
+      - '--config.file=/etc/prometheus/config.yml'
+      - '--storage.tsdb.path=/data'
+

.templates/prometheus/service.yml

@@ -0,0 +1,13 @@
+  cadvisor-arm:
+    container_name: cadvisor
+    image: budry/cadvisor-arm:latest
+    restart: unless-stopped
+    user: "0"
+    privileged: true
+    ports:
+      - 8080:8080
+    volumes:
+      - /:/rootfs:ro
+      - /var/run:/var/run:rw
+      - /sys:/sys:ro
+      - /var/lib/docker/:/var/lib/docker:ro

.templates/prometheus/service_cadvisor-arm.yml

@@ -0,0 +1,6 @@
+  node-exporter:
+    image: prom/node-exporter:latest
+    container_name: node_exporter
+    restart: unless-stopped
+    expose:
+      - 9100

.templates/prometheus/service_node-exporter.yml

@@ -25,6 +25,7 @@ declare -A cont_array=(
 	[transmission]="transmission"
 	[grafana]="Grafana"
 	[mosquitto]="Eclipse-Mosquitto"
+	[prometheus]="Prometheus"
 	[postgres]="Postgres"
 	[timescaledb]="Timescaledb"
 	[mariadb]="MariaDB (MySQL fork)"
@@ -61,6 +62,7 @@ declare -a armhf_keys=(
 	"grafana"
 	"mosquitto"
 	"telegraf"
+	"prometheus"
 	"mariadb"
 	"postgres"
 	"timescaledb"