Merge pull request #8 from fabulargirl/labs/lab8

lab 8

Author: fabulargirl

Submissions/Images/img1_lab8.png

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+# Task 1: Key Metrics for SRE and SLAs
+
+1. **Monitor System Resources:**
+
+    Top-3 CPU:
+    ![img.png](Images/img_lab8.png)
+    
+    Top-3 memory:
+    ![img_1.png](Images/img1_lab8.png)
+    
+    I/O usage:
+    ![img_2.png](Images/img2_lab8.png)
+
+2. **Disk Space Management:**
+
+    Checking the available space: 
+    ![img_3.png](Images/img3_lab8.png)
+
+    Files in the `/var` directory 
+
+    Command: 
+    ```commandline
+    sudo du -ah /var | sort -rh | head -n 4 > /Users/kristina/Documents/Kristina/large_files.txt
+    ```
+   
+    Result:
+    ![img_4.png](Images/img4_lab8.png)
+
+# Task 2: Practical Website Monitoring Setup
+
+1. Choose Your Website
+
+    https://www.postcrossing.com/
+
+2. Create Checks in Checkly
+
+    Create API Check for basic availability
+
+    ![img_5.png](Images/img5_lab8.png)
+
+    Create Browser Check for content & interactions
+
+    ![img_6.png](Images/img6_lab8.png)
+
+
+3. Set Up Alerts
+
+    ![img_7.png](Images/img7_lab8.png)