├── Dockerfile
├── README.md
└── conf
    ├── alert.rules
    └── prometheus.yml


/Dockerfile:
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 1 | FROM alpine
 2 | 
 3 | LABEL maintainer="jeferson@linuxtips.com.br"
 4 | LABEL version="1.0"
 5 | 
 6 | ENV prometheus_version 2.8.1
 7 | 
 8 | RUN adduser -s /bin/false -D -H prometheus \
 9 |     && adduser -s /bin/false -D -H node_exporter \
10 |     && apk update \
11 |     && apk --no-cache add curl \
12 |     && curl -LO https://github.com/prometheus/prometheus/releases/download/v${prometheus_version}/prometheus-${prometheus_version}.linux-amd64.tar.gz \
13 |     && tar -xvzf prometheus-${prometheus_version}.linux-amd64.tar.gz \
14 |     && mkdir -p /etc/prometheus /var/lib/prometheus \
15 |     && cp prometheus-${prometheus_version}.linux-amd64/promtool /usr/local/bin/ \
16 |     && cp prometheus-${prometheus_version}.linux-amd64/prometheus /usr/local/bin/ \
17 |     && cp -R prometheus-${prometheus_version}.linux-amd64/console_libraries/ /etc/prometheus/ \
18 |     && cp -R prometheus-${prometheus_version}.linux-amd64/consoles/ /etc/prometheus/ \
19 |     && rm -rf prometheus-${prometheus_version}.linux-amd64* \
20 |     && chown prometheus:prometheus /usr/local/bin/prometheus \
21 |     && chown prometheus:prometheus /usr/local/bin/promtool \
22 |     && chown -R prometheus:prometheus /etc/prometheus \
23 |     && chown prometheus:prometheus /var/lib/prometheus \
24 |     && apk del curl
25 | 
26 | VOLUME /etc/prometheus
27 | 
28 | VOLUME /var/lib/prometheus
29 | 
30 | ADD conf/prometheus.yml /etc/prometheus/
31 | ADD conf/alert.rules /etc/prometheus/
32 | 
33 | ENTRYPOINT /usr/local/bin/prometheus \ 
34 |             --config.file /etc/prometheus/prometheus.yml \ 
35 |             --storage.tsdb.path /var/lib/prometheus/ \
36 |             --web.console.libraries=/usr/share/prometheus/console_libraries \
37 |             --web.console.templates=/usr/share/prometheus/consoles
38 | 
39 | EXPOSE 9090
40 | 


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/README.md:
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 1 | # Prometheus on Alpine
 2 | 
 3 | ## To run this image, execute:
 4 | ```
 5 | # docker container run -d --name prometheus -p 9090:9090 linuxtips/prometheus_alpine
 6 | ```
 7 | 
 8 | Open http://your_ip:9090 to access the interface of Prometheus.
 9 | 
10 | ## To view the logs, execute:
11 | ```
12 | # docker container logs -f <container_id>
13 | ```
14 | 
15 | ## To create a swarm service, execute:
16 | ```
17 | # docker service create --name prometheus -p 9090:9090 linuxtips/prometheus_alpine
18 | ```
19 | 


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/conf/alert.rules:
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 1 | groups:
 2 | - name: example
 3 |   rules:
 4 | 
 5 |   # Alert for any instance that is unreachable for >5 minutes.
 6 |   - alert: service_down
 7 |     expr: up == 0
 8 |     for: 2m
 9 |     labels:
10 |       severity: page
11 |     annotations:
12 |       summary: "Instance {{ $labels.instance }} down"
13 |       description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 2 minutes."
14 | 
15 |   - alert: high_load
16 |     expr: node_load1 > 0.5
17 |     for: 2m
18 |     labels:
19 |       severity: page
20 |     annotations:
21 |       summary: "Instance {{ $labels.instance }} under high load"
22 |       description: "{{ $labels.instance }} of job {{ $labels.job }} is under high load."


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/conf/prometheus.yml:
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 1 | global:
 2 |   scrape_interval:     10s
 3 |   evaluation_interval: 10s
 4 | rule_files:
 5 |   - 'alert.rules'
 6 | 
 7 |  consul_sd_configs:
 8 |   - server: 'localhost:8500'
 9 |     scheme: https
10 | 
11 | scrape_configs:
12 |   - job_name: 'prometheus'
13 |     scrape_interval: 5s
14 |     static_configs:
15 |          - targets: ['localhost:9090']
16 | 


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