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ClothjClothj
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add lab 7
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‎health.log‎

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[Sat Oct 18 00:46:25 MSK 2025] HEALTHY: States match

‎labs/current-state.txt‎

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version: 1.0
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app: myapp
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replicas: 3

‎labs/desired-state.txt‎

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version: 1.0
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app: myapp
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replicas: 3

‎labs/health.log‎

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[Sat Oct 18 00:46:28 MSK 2025] HEALTHY: States match
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[Sat Oct 18 00:46:33 MSK 2025] DRIFT: States differ
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[Sat Oct 18 00:46:35 MSK 2025] HEALTHY: States match
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[Sat Oct 18 00:46:43 MSK 2025] HEALTHY: States match
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[Sat Oct 18 00:46:48 MSK 2025] HEALTHY: States match

‎labs/healthcheck.sh‎

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#!/bin/bash
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# Healthcheck: compare md5 of desired-state.txt and current-state.txt
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md5_desired=$(md5sum desired-state.txt | awk '{print $1}')
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md5_current=$(md5sum current-state.txt | awk '{print $1}')
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if [ "$md5_desired" = "$md5_current" ]; then
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echo "[$(date)] HEALTHY: States match" >> health.log
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else
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echo "[$(date)] DRIFT: States differ" >> health.log
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fi

‎labs/monitor.sh‎

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#!/bin/bash
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# Monitor loop: run healthcheck and reconcile in a loop
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while true; do
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./healthcheck.sh
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./reconcile.sh
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sleep 5
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done

‎labs/reconcile.log‎

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[Sat Oct 18 00:46:20 MSK 2025] Reconciled current-state.txt with desired-state.txt
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[Sat Oct 18 00:46:35 MSK 2025] Reconciled current-state.txt with desired-state.txt

‎labs/reconcile.sh‎

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#!/bin/bash
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# Reconcile current-state.txt with desired-state.txt
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if ! cmp -s desired-state.txt current-state.txt; then
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cp desired-state.txt current-state.txt
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echo "[$(date)] Reconciled current-state.txt with desired-state.txt" >> reconcile.log
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fi

‎labs/submission7.md‎

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# Lab 7 Submission
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## Task 1 — Git State Reconciliation
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### 1. Filling desired-state.txt and current-state.txt
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```bash
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echo 'version: 1.0' > labs/desired-state.txt
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echo 'app: myapp' >> labs/desired-state.txt
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echo 'replicas: 3' >> labs/desired-state.txt
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cp labs/desired-state.txt labs/current-state.txt
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```
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### 2. Example of drift and reconcile
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```bash
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echo 'version: 2.0' > labs/current-state.txt
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echo 'app: myapp' >> labs/current-state.txt
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echo 'replicas: 5' >> labs/current-state.txt
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cd labs; bash reconcile.sh; cat current-state.txt
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# Output:
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version: 1.0
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app: myapp
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replicas: 3
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```
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### 3. Reconcile-loop
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```bash
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cd labs; bash monitor.sh
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# (stop manually with Ctrl+C)
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```
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## Task 2 — GitOps Health Monitoring
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### 1. Healthcheck verification
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```bash
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cd labs; bash healthcheck.sh; cat health.log
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# Output:
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[Sat Oct 18 00:46:28 MSK 2025] HEALTHY: States match
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```
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### 2. Introducing drift and re-check
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```bash
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cd labs; echo 'unapproved-change: true' >> current-state.txt; bash healthcheck.sh; cat health.log
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# Output:
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[Sat Oct 18 00:46:33 MSK 2025] DRIFT: States differ
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```
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### 3. State recovery
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```bash
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cd labs; bash reconcile.sh; bash healthcheck.sh; cat health.log
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# Output:
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[Sat Oct 18 00:46:35 MSK 2025] HEALTHY: States match
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```
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### 4. Example of monitor.sh in action
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```bash
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cd labs; bash monitor.sh
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# (stop manually with Ctrl+C)
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cat health.log
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# Output:
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[Sat Oct 18 00:46:43 MSK 2025] HEALTHY: States match
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[Sat Oct 18 00:46:48 MSK 2025] HEALTHY: States match
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```
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## Conclusion:
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Thank you for the lab! That was interesting!

‎reconcile.log‎

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[Sat Oct 18 00:46:09 MSK 2025] Reconciled current-state.txt with desired-state.txt
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[Sat Oct 18 00:46:16 MSK 2025] Reconciled current-state.txt with desired-state.txt

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