.dockerignore

@@ -0,0 +1 @@
+target

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "server_metrics"
+name = "system-exporter"
 version = "0.1.0"
 edition = "2021"
 

Dockerfile

@@ -0,0 +1,24 @@
+# ---- Build Stage ----
+FROM rust:1.71.1-slim-bullseye as build
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt update && apt install -y \
+    iputils-ping \
+    libpq-dev \
+    cmake \
+    pkg-config \
+    gcc \
+    g++ \
+    python3 \
+    libssl-dev \
+    protobuf-compiler \
+    git
+ARG DEBIAN_FRONTEND=noninteractive
+WORKDIR /app
+COPY . .
+RUN cargo build --release
+
+## ---- Production Stage ----
+FROM debian:bookworm AS production
+WORKDIR /app
+COPY --from=build /app/target/release/system-exporter ./
+CMD [ "./system-exporter" ]

README.md

@@ -1,2 +1,10 @@
 # system-exporter
 
+This repo will export useful metrics about your system and provide a nice dashboard. 
+
+Note: currently only supports docker
+
+## Usage 
+
+1. Build: `docker build -t dockermonrs .`
+2. Run: `cd example && docker-compose up -d`

example/config/alertmanager/alertmanager.yml

@@ -0,0 +1,38 @@
+global:
+  resolve_timeout: 5m
+  slack_api_url: 'https://hooks.slack.com/services/XXX'
+
+templates:
+  - '/etc/alertmanager/template/*.tmpl'
+
+route:
+  group_by: ['alertname']
+  group_wait: 10s
+  group_interval: 10s
+  repeat_interval: 1h
+  receiver: 'webhook'
+  routes:
+    - receiver: 'slack-notification'
+      group_by: ['service']
+      match_re:
+        alertname: 'node.*down'
+
+inhibit_rules:
+  - source_match:
+      severity: 'critical'
+    target_match:
+      severity: 'warning'
+    equal: ['alertname', 'dev', 'instance']
+  - source_match_re:
+      alertname: 'node.*down'
+    target_match:
+      alertname: 'webservicedown'
+
+receivers:
+  - name: 'webhook'
+    webhook_configs:
+      - url: 'http://127.0.0.1:5000/webhook'
+  - name: 'slack-notification'
+    slack_configs:
+      - channel: '#notification'
+        send_resolved: false

example/config/grafana/provisioning/dashboards/dashboard.yml

@@ -0,0 +1,11 @@
+apiVersion: 1
+
+providers:
+  - name: "Prometheus"
+    orgId: 1
+    folder: ""
+    type: file
+    disableDeletion: false
+    editable: true
+    options:
+      path: /etc/grafana/provisioning/dashboards

example/config/grafana/provisioning/datasources/datasources.yml

@@ -0,0 +1,15 @@
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    orgId: 1
+    url: http://prometheus:9090
+    basicAuth: false
+    isDefault: true
+    editable: true
+    uid: prometheus
+    version: 1
+    jsonData:
+      httpMethod: GET

example/config/prometheus/prometheus.yml

@@ -0,0 +1,26 @@
+global:
+  scrape_interval: 5s
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets: ['alertmanager:9093']
+
+rule_files:
+  - "/etc/prometheus/rules/*"
+
+scrape_configs:
+
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+        labels:
+          group: 'prometheus'
+
+  - job_name: 'system-exporter'
+    static_configs:
+      - targets: ['system-exporter:45454']
+
+  - job_name: 'node-exporter'
+    static_configs:
+      - targets: ['node-exporter:9100']

example/config/prometheus/rules/sample.yml

@@ -0,0 +1,10 @@
+groups:
+  - name: sample-alerts
+    rules:
+      - alert: node down
+        expr: 0
+        labels:
+          severity: critical
+          service: linux
+        annotations:
+          summary: node down

example/docker-compose.yaml

@@ -0,0 +1,69 @@
+version: "3.8"
+
+services:
+
+  socat:
+    container_name: socat
+    image: bobrik/socat
+    command: TCP-LISTEN:2375,fork UNIX-CONNECT:/var/run/docker.sock
+    ports:
+      - "2375:2375"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+  system-exporter:
+    container_name: system-exporter
+    image: dockermonrs
+    command: /app/system-exporter --docker-server http://socat:2375
+    ports:
+      - "45454:45454"
+
+  prometheus:
+    container_name: prometheus
+    image: bitnami/prometheus:latest
+    restart: unless-stopped
+    volumes:
+      - ./config/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
+      - ./config/prometheus//rules:/etc/prometheus/rules
+    command: "--config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/prometheus"
+    ports:
+      - 19090:9090
+
+  grafana:
+    container_name: grafana
+    image: grafana/grafana:latest
+    restart: unless-stopped
+    volumes:
+      - ./config/grafana/defaults.ini:/usr/share/grafana/conf/defaults.ini
+      - ./config/grafana/provisioning:/etc/grafana/provisioning
+    ports:
+      - "13000:3000"
+    depends_on:
+      - prometheus
+
+  alertmanager:
+    container_name: alertmanager
+    image: bitnami/alertmanager:latest
+    restart: unless-stopped
+    ports:
+      - 19093:9093
+    volumes:
+      - ./config/alertmanager/alertmanager.yml:/etc/alertmanager/alertmanager.yml
+      - ./config/grafana/provisioning/datasources/datasources.yml:/etc/grafana/provisioning/datasources/datasources.yaml
+
+  node-exporter:
+    container_name: node-exporter
+    image: bitnami/node-exporter:latest
+    restart: unless-stopped
+    privileged: true
+    ports:
+      - "19100:9100"
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    command:
+      - "--path.procfs=/host/proc"
+      - "--path.sysfs=/host/sys"
+      - "--collector.filesystem.ignored-mount-points"
+      - "^/(rootfs/)?(dev|etc|host|proc|run|sys|volume1)($$|/)"

src/docker/method/get_containers/models.rs

@@ -21,10 +21,14 @@ pub struct DockerContainer {
     pub image: String,
     #[serde(rename = "ImageID")]
     pub image_id: String,
+    #[serde(default)]
     pub labels: HashMap<String, String>,
+    #[serde(default)]
     pub mounts: Vec<Mount>,
+    #[serde(default)]
     pub names: Vec<String>,
     pub network_settings: NetworkSettings,
+    #[serde(default)]
     pub ports: Vec<Port>,
     pub state: String,
     pub status: String,
@@ -90,9 +94,9 @@ pub struct Bridge {
 #[serde(rename_all = "PascalCase")]
 pub struct Port {
     #[serde(rename(deserialize = "IP"))]
-    pub ip: String,
-    pub private_port: i32,
-    pub public_port: i32,
+    pub ip: Option<String>,
+    pub private_port: Option<i32>,
+    pub public_port: Option<i32>,
     #[serde(rename(deserialize = "Type"))]
-    pub type_: String,
+    pub type_: Option<String>,
 }

src/docker/mod.rs

@@ -53,9 +53,12 @@ impl DockerClient {
 
         match serde_json::from_value(json_value.clone()) {
             Ok(value) => Ok(value),
-            Err(_) => Err(SystemExporterError::RemoteServerError(
-                serde_json::from_value(json_value)?,
-            )),
+            Err(e) => {
+                println!("error: {}", e);
+                Err(SystemExporterError::RemoteServerError(
+                    serde_json::from_value(json_value)?,
+                ))
+            }
         }
     }
 }