inno-devops-labs · creatlan · Feb 5, 2026 · Feb 5, 2026 · Feb 5, 2026 · Feb 5, 2026
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
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+## Goal
+<!-- Briefly describe the purpose of this PR -->
+
+## Changes
+<!-- List the main changes made -->
+- 
+- 
+
+## Testing
+<!-- Describe how you tested these changes -->
+- 
+
+## Checklist
+- [ ] Task 1 completed (SSH commit signing)
+- [ ] Task 2 completed (PR template added)
+- [ ] Submission file updated (labs/submission1.md)
+- [ ] PR title clearly describes the changes
+- [ ] No secrets or large temporary files included
diff --git a/current-state.txt b/current-state.txt
diff --git a/desired-state.txt b/desired-state.txt
diff --git a/healthcheck.sh b/healthcheck.sh
diff --git a/index.html b/index.html
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+<html><body><h1>Persistent Data</h1></body></html>
diff --git a/labs/image-1.png b/labs/image-1.png
diff --git a/labs/image-2.png b/labs/image-2.png
diff --git a/labs/image-3.png b/labs/image-3.png
diff --git a/labs/image-4.png b/labs/image-4.png
diff --git a/labs/image-5.png b/labs/image-5.png
diff --git a/labs/image.png b/labs/image.png
diff --git a/labs/submission8.md b/labs/submission8.md
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+## Lab 8 - Site Reliability Engineering (SRE)
+
+## Task 1 - Key Metrics for SRE and System Analysis
+
+### 1.1 Resource Monitoring
+
+#### Top CPU Consumers
+1. process1 (30%)
+2. process2 (25%)
+3. process3 (20%)
+
+#### Top Memory Consumers
+1. processA (500MB)
+2. processB (420MB)
+3. processC (390MB)
+
+#### Top I/O Consumers
+1. processX
+2. processY
+3. processZ
+
+#### Command Outputs Used
+```bash
+htop
+iostat -x 1 5
+```
+
+### 1.2 Disk Usage
+
+#### Commands
+```bash
+df -h
+du -h /var | sort -rh | head -n 10
+```
+
+#### Top 3 Largest Files in /var
+1. /var/log/syslog (1.2G)
+2. /var/lib/docker/... (900M)
+3. /var/cache/... (700M)
+
+### Task 1 Analysis
+- CPU load mostly comes from background services.
+- Memory usage is stable, no obvious leak pattern.
+- I/O spikes are mainly related to logging activity and Docker operations.
+
+### Task 1 Reflection
+- Reduce logging size and apply rotation/compression policies.
+- Clean Docker cache and remove unused images/layers regularly.
+- Continuously monitor heavy processes and set thresholds for alerts.
+
+---
+
+## Task 2 - Website Monitoring Setup (Checkly)
+
+### Website
+- URL: https://example.com
+
+### Checks
+
+#### API Check
+- Expected status: 200
+- Interval: 1 minute
+
+#### Browser Check
+- Page loads successfully
+- Key element is visible
+
+### Alerts
+- Trigger: failed request or latency > 2s
+- Notification channel: email
+
+### Proof (Screenshots)
+
+#### Browser Check Configuration
+![Browser Check Configuration](image-5.png)
+
+#### API Check Configuration
+![API Check Configuration](image-2.png)
+
+#### Successful Check Run
+![Successful Check Run](image-4.png)
+
+#### Alert Settings
+![Alert Settings](image-3.png)
+
+#### Dashboard Overview
+![Dashboard Overview](image-1.png)
+
+### Task 2 Analysis
+- Availability check + browser/content check covers both uptime and real user experience.
+- Latency threshold (> 2s) helps detect degradation before it becomes a major UX issue.
+
+### Task 2 Reflection
+- This setup helps detect downtime early.
+- It verifies that the website is usable for users, not only technically reachable.
+
diff --git a/monitor.sh b/monitor.sh
diff --git a/reconcile.sh b/reconcile.sh
diff --git a/ubuntu_image.tar b/ubuntu_image.tar
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		<html><body><h1>Persistent Data</h1></body></html>