Energy Sector Edge Computing
Technical Architecture Overview
This guide covers implementing DevOps practices for managing thousands of edge devices (PLCs, RTUs, IoT gateways) in energy sector environments.
Core Infrastructure Components
graph TD
A[Edge Devices] -->|Metrics/Logs| B[Collectors]
B -->|Forward| C[Central Monitoring]
A -->|Config Updates| D[Config Management]
D -->|Apply| A
E[Git Repos] -->|Trigger| F[CI/CD Pipelines]
F -->|Deploy| D
Implementation Guide
1. Infrastructure as Code (IaC) Setup
# modules/edge_device/main.tf
module "edge_fleet" {
source = "./modules/edge-fleet"
fleet_config = {
device_count = 1000
regions = ["us-east-1", "us-west-2"]
monitoring = true
tags = {
environment = "production"
type = "plc-gateway"
}
}
security_config = {
enable_encryption = true
rotation_period = "72h"
allowed_networks = ["10.0.0.0/8"]
}
}
2. Monitoring Stack
# prometheus/edge-exporters.yml
scrape_configs:
- job_name: 'edge-fleet'
scrape_interval: 30s
static_configs:
- targets:
- 'edge-001.internal:9100'
- 'edge-002.internal:9100'
relabel_configs:
- source_labels: [__address__]
regex: '(edge-\d+)\..*'
target_label: device_id
# grafana/alerts.yml
groups:
- name: edge-fleet
rules:
- alert: EdgeDeviceOffline
expr: up{job="edge-fleet"} == 0
for: 5m
annotations:
summary: "Edge device {{ $labels.device_id }} offline"
3. Configuration Management
# ansible/roles/edge-config/tasks/main.yml
- name: Update Edge Device Configuration
hosts: edge_devices
become: yes
tasks:
- name: Ensure baseline config
template:
src: templates/device-config.j2
dest: /etc/edge/config.yaml
validate: /usr/local/bin/edge-validate --config %s
notify: restart edge service
- name: Apply security policies
ansible.builtin.include_role:
name: security-baseline
handlers:
- name: restart edge service
systemd:
name: edge-agent
state: restarted
4. CI/CD Pipeline
# .github/workflows/edge-config-deploy.yml
name: Edge Config Deployment
on:
push:
paths:
- 'edge-configs/**'
jobs:
validate:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Validate Configs
run: |
for config in edge-configs/*; do
edge-validate $config
done
deploy:
needs: validate
runs-on: self-hosted
steps:
- name: Deploy to Canary
run: ansible-playbook -i inventory/canary deploy.yml
- name: Run Health Checks
run: ./scripts/health-check.sh
- name: Deploy to Production
if: success()
run: ansible-playbook -i inventory/prod deploy.yml
SRE Best Practices
SLO Implementation
# prometheus/slo.yml
groups:
- name: edge-slos
rules:
- record: edge:uptime:ratio
expr: |
sum(rate(edge_uptime_total[24h]))
/
sum(rate(edge_uptime_total[24h])) + sum(rate(edge_downtime_total[24h]))
- alert: SLOBudgetBurn
expr: |
edge:uptime:ratio < 0.995
for: 1h
Automation Runbooks
# runbooks/auto_remediation.py
def handle_device_offline(device_id):
# 1. Check connectivity
if not check_network(device_id):
trigger_network_reset(device_id)
# 2. Verify configuration
if detect_config_drift(device_id):
apply_baseline_config(device_id)
# 3. Update status
update_incident_status(device_id)
Toil Reduction Matrix
Task
Before
After
Automation Method
Device Onboarding
Manual (30min/device)
Automated (2min/device)
Terraform + Ansible
Config Updates
SSH + Manual Changes
GitOps Pipeline
GitHub Actions + Ansible
Incident Response
Manual Investigation
Auto-remediation
Python + AWS Lambda
Patch Management
Scheduled Downtime
Rolling Updates
Kubernetes Operators
References
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