Feature/lab12

.github/pull_request_template.md

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+# Goal 
+Describe the goal of the PR
+
+# Changes
+Describe the changes made to the codebase
+
+# Testing
+Describe the actions made to test the changes
+
+# Checklist
+- [ ] Clear title?
+- [ ] docs/README updated if needed?
+- [ ] No secrets/large temp files?

labs/submission12.md

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+**NOTE TO CHECKING STAFF**
+I did not manage to finish task 3 on time (therefore disallowing myself from doing task 4)
+
+## Task 1
+
+CLI:
+![alt text](image.png)
+
+Browser:
+![alt text](image-1.png)
+
+The main.go utilizes environmental variables to deduce the preferred mode, falling back to HTTP mode. 
+
+## Task 2
+
+### Sizes
+```sh
+[RatPC|rightrat lab12] sudo docker create --name temp-traditional moscow-time-traditional
+d158df4598235c7322fed9f6ddf0e4ea546df25c192d46e38bd69922d4cb78cf
+[RatPC|rightrat lab12] sudo docker cp temp-traditional:/app/moscow-time ./moscow-time-traditional
+Successfully copied 4.7MB to /home/rightrat/ratsonal/F25-DevOps-Intro/labs/lab12/moscow-time-traditional
+[RatPC|rightrat lab12] sudo docker rm temp-traditional
+temp-traditional
+[RatPC|rightrat lab12] ls -lh moscow-time-traditional 
+-rwxr-xr-x 1 root root 4,5M дек 10 23:21 moscow-time-traditional
+```
+So, 4.5MB
+
+
+```sh
+[RatPC|rightrat lab12] sudo docker images moscow-time-traditional
+                                                                                                      i Info →   U  In Use
+IMAGE                            ID             DISK USAGE   CONTENT SIZE   EXTRA
+moscow-time-traditional:latest   64b4d21e4c51       6.82MB         2.07MB
+```
+...or not
+
+```sh
+[RatPC|rightrat lab12] sudo docker image inspect moscow-time-traditional --format '{{.Size}}' |     awk '{print $1/1024/1024 " MB"}'
+1.97643 MB
+```
+
+### Startup times
+
+```sh
+[RatPC|rightrat lab12] for i in {1..5}; do     /usr/bin/time -f "%e" sudo docker run --rm -e MODE=once moscow-time-traditional 2>&1 | tail -n 1; done | awk '{sum+=$1; count++} END {print "Average:", sum/count, "seconds"}'
+Average: 0.158 seconds
+```
+
+### Memory usage
+
+```sh
+[RatPC|rightrat ~] sudo docker stats test-traditional --no-stream
+CONTAINER ID   NAME               CPU %     MEM USAGE / LIMIT     MEM %     NET I/O           BLOCK I/O   PIDS
+ace2c0e22f70   test-traditional   0.01%     3.086MiB / 31.21GiB   0.01%     18.3kB / 6.04kB   0B / 0B     5
+```
+
+### Browser run
+
+![alt text](image-2.png)
+
+