Lab5 virtualization

.github/workflows/main.yml

@@ -0,0 +1,23 @@
+name: CI/CD Pipeline
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Run a one-line script
+        run: echo Hello, world! This is my first GitHub Action!
+      - name: Gather System Information
+        run: |
+          echo "--- Operating System ---"
+          uname -a
+          echo ""
+          echo "--- CPU Information ---"
+          lscpu
+          echo ""
+          echo "--- Memory Information ---"
+          free -h

history.txt

@@ -0,0 +1,3 @@
+Commit A
+Commit B
+Commit C

submission2.md

@@ -0,0 +1,216 @@
+# Lab Submission: Version Control
+
+## Task 1: Understanding Git Objects
+
+### 
+
+```fish
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> echo "This is the content of my first file." > sample_file.txt
+
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git add sample_file.txt
+
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git commit -m "Add sample_file.txt"
+
+[lab1-complete db850ca] Add sample_file.txt
+ 1 file changed, 1 insertion(+)
+ create mode 100644 sample_file.txt
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git log -1
+
+commit db850ca5a9000a8abc0ec2e6079c2daf37b292c0 (HEAD -> lab1-complete)
+Author: hvostcheduser <yogik_iz_gretsii@mail.ru>
+Date:   Thu Jun 12 22:02:22 2025 +0300
+
+    Add sample_file.txt
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git cat-file -p db850ca
+tree f487458f8b211e2eb232c6dff9e9d1fdb8343979
+parent 5f4a7d66c6c4bd166a915ae9576f83af0abab17e
+author hvostcheduser <yogik_iz_gretsii@mail.ru> 1749754942 +0300
+committer hvostcheduser <yogik_iz_gretsii@mail.ru> 1749754942 +0300
+gpgsig -----BEGIN SSH SIGNATURE-----
+ U1NIU0lHAAAAAQAAAZcAAAAHc3NoLXJzYQAAAAMBAAEAAAGBALEPoQliCMbdiPoBbo+OI+
+ GwDfI+LPPKs8ETxT2kle7Az2pGH9wRC4Kfxw0+NbP8rI2kJa1PsY8T0+QKEr1JWM2x88hQ
+ y/g/PuM/fHnFF2DGn88YQEC2AN2Hg+4m9eMhgY6AwNeDUgZQq0k3I6zmzd7Uha5TfTqhJz
+ n5f5TpPHR7tKLmWoM5a3GLiVk5DW/EXXpxB/bd4B+m4L3s+MXyxobFOeORcjFgdmwjwOsF
+ b4Bx5hrZEoP7vXSkYHWWXwELaprok58bl+VfSV3CDrQGHZnTbdI49PJD04+w3ZXbbbShcy
+ H0J1zBm2qhBTV8d6GKYMGlPwufGIZMVVCvq+3Nc0/IwWHNVFbEsTXPTB7tFmdL5jEfXzw+
+ erHnosgixoyyZ5yDo/aHjTR25r1cd2qnslVdIGPXeCGCZV7mlEHWrOwIKCbsj2ASUAYAWA
+ OMgiHLr9ZjNBmY44qZp0QOf8P2ZWPUTehuhdLCTYwsG/1ICz4gk0MZ2CxycJcDkyptvd1o
+ KwAAAANnaXQAAAAAAAAABnNoYTUxMgAAAZQAAAAMcnNhLXNoYTItNTEyAAABgGE6gaHfz+
+ J7QD4Q4HiDSyWPtSCl/uezIjwhjVYBLEKqyiOMhU43whjOjXI+7YLTHQiVh7K/eRdlSKNz
+ SdhmpYiExxtHfWv36Do/3kj1b1v9UCaP0tpetRCOCP57x4+IuFLIr/hXTjkpYl/kHJp3zV
+ 88bj9J/P486mXijSzbyTkDgbIbBPSHPHABrHJgbqenJhD664BPht3Mt4GUx/HLfU/l06Aw
+ nQDx4CFxCfHe80NV9rlYwldpJRePiAMkqnsw2kkirx2VHXJ4BMFKT9HZtYX6PujxlbcYjf
+ 3wwffxfJlgvnswhezYmb3PXY7kanPGN/yzeb5WTVvq5ADT80A5Q4oiSZTM0swK7E/hGz5Z
+ yDXnOr96jNs5bkUMsx9Ecn+hWS/rzuWubTfOfj+dPnW4prOKaE4VymPPlgGid+x6qci9qa
+ NlSr+YAImqJXiL8slc0qOaKk7bsXKkgto4FsCyBKw14qFgfzP3LcYKjmwiiiTcwix4ESwy
+ 1ILtlxMv9FIqdw==
+ -----END SSH SIGNATURE-----
+
+Add sample_file.txt
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git cat-file -p f487458f8b211e2eb232c6dff9e9d1fdb8343979
+
+100644 blob af7fda8ea32b60578a1103ce061a50d7f6f09a35	README.md
+100644 blob 7a94f7af59b8968be392288ea03179a24ffc9d9e	lab1.md
+100644 blob 2f8463cc188ec6ca69ae7a0f98d38e132280becb	lab2.md
+100644 blob aababaf2aa910e866351989eb7b4981213c91814	sample_file.txt
+100644 blob 1e42f316d822175c17245a9490123d1e9cab6add	submission1.md
+@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git cat-file -p aababaf2aa910e866351989eb7b4981213c91814
+This is the content of my first file.
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> touch submission2.md
+
+
+```
+
+
+## Task 2: Git Reset Practice ### Initial State The `git-reset-practice` branch was created with three commits.
+
+```fish
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git checkout -b git-reset-practice
+Переключились на новую ветку «git-reset-practice»
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> echo "First commit" > file.txt
+  git add file.txt
+  git commit -m "First commit"
+
+  echo "Second commit" >> file.txt
+  git add file.txt
+  git commit -m "Second commit"
+
+  echo "Third commit" >> file.txt
+  git add file.txt
+  git commit -m "Third commit"
+[git-reset-practice 005e28b] First commit
+ 1 file changed, 1 insertion(+)
+ create mode 100644 file.txt
+[git-reset-practice 987a9f6] Second commit
+ 1 file changed, 1 insertion(+)
+[git-reset-practice 45c43b2] Third commit
+ 1 file changed, 1 insertion(+)
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git log --oneline
+45c43b2 (HEAD -> git-reset-practice) Third commit
+987a9f6 Second commit
+005e28b First commit
+db850ca (lab1-complete) Add sample_file.txt
+5f4a7d6 (origin/lab1-complete) Task 2: Add summary of merge strategies
+c3e8e15 Task 1: Add summary of signed commits benefits
+0fea98c (origin/master, origin/HEAD, master) lab2 Git
+a107866 lab1 Intro
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git reset --soft HEAD~1
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git log --oneline
+  git status
+987a9f6 (HEAD -> git-reset-practice) Second commit
+005e28b First commit
+db850ca (lab1-complete) Add sample_file.txt
+5f4a7d6 (origin/lab1-complete) Task 2: Add summary of merge strategies
+c3e8e15 Task 1: Add summary of signed commits benefits
+0fea98c (origin/master, origin/HEAD, master) lab2 Git
+a107866 lab1 Intro
+Текущая ветка: git-reset-practice
+Изменения, которые будут включены в коммит:
+  (используйте «git restore --staged <файл>...», чтобы убрать из индекса)
+	изменено:      file.txt
+
+Неотслеживаемые файлы:
+  (используйте «git add <файл>...», чтобы добавить в то, что будет включено в коммит)
+	submission2.md
+
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git commit -m "Third commit (re-committed)"
+[git-reset-practice 2123526] Third commit (re-committed)
+ 1 file changed, 1 insertion(+)
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git reset --hard HEAD~1
+Указатель HEAD сейчас на коммите 987a9f6 Second commit
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git log --oneline
+  git status
+987a9f6 (HEAD -> git-reset-practice) Second commit
+005e28b First commit
+db850ca (lab1-complete) Add sample_file.txt
+5f4a7d6 (origin/lab1-complete) Task 2: Add summary of merge strategies
+c3e8e15 Task 1: Add summary of signed commits benefits
+0fea98c (origin/master, origin/HEAD, master) lab2 Git
+a107866 lab1 Intro
+Текущая ветка: git-reset-practice
+Неотслеживаемые файлы:
+  (используйте «git add <файл>...», чтобы добавить в то, что будет включено в коммит)
+	submission2.md
+
+индекс пуст, но есть неотслеживаемые файлы
+(используйте «git add», чтобы проиндексировать их)
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git reflog
+987a9f6 (HEAD -> git-reset-practice) HEAD@{0}: reset: moving to HEAD~1
+2123526 HEAD@{1}: commit: Third commit (re-committed)
+987a9f6 (HEAD -> git-reset-practice) HEAD@{2}: reset: moving to HEAD~1
+45c43b2 HEAD@{3}: commit: Third commit
+987a9f6 (HEAD -> git-reset-practice) HEAD@{4}: commit: Second commit
+005e28b HEAD@{5}: commit: First commit
+db850ca (lab1-complete) HEAD@{6}: checkout: moving from lab1-complete to git-reset-practice
+db850ca (lab1-complete) HEAD@{7}: commit: Add sample_file.txt
+5f4a7d6 (origin/lab1-complete) HEAD@{8}: commit: Task 2: Add summary of merge strategies
+c3e8e15 HEAD@{9}: commit: Task 1: Add summary of signed commits benefits
+0fea98c (origin/master, origin/HEAD, master) HEAD@{10}: reset: moving to HEAD~1
+a3cdf61 HEAD@{11}: commit: Task 1: Add summary of signed commits benefits (with correct allowed_signers)
+0fea98c (origin/master, origin/HEAD, master) HEAD@{12}: reset: moving to HEAD~1
+87c323f HEAD@{13}: commit: benefits of signed commits section in my submission
+0fea98c (origin/master, origin/HEAD, master) HEAD@{14}: reset: moving to HEAD~1
+335a90f HEAD@{15}: commit: benefits of signed commits section in my submission
+0fea98c (origin/master, origin/HEAD, master) HEAD@{16}: checkout: moving from master to lab1-complete
+0fea98c (origin/master, origin/HEAD, master) HEAD@{17}: clone: from github.com:HvostchedUser/Sum25-intro-labs.git
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git reset --hard HEAD@{1}
+Указатель HEAD сейчас на коммите 2123526 Third commit (re-committed)
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> 
+
+```
+
+## Task 3: Visualizing Git History
+
+### Commit Graph
+
+
+```fish
+
+ivan@hp-spectre-x360 /home/ivan/Projects/Sum25-intro-labs  
+> git log --oneline --graph --all
+* eca38fc (HEAD -> master) Commit C
+* 8c50b92 Commit B
+* f5865f4 Commit A
+| * 2123526 (git-reset-practice) Third commit (re-committed)
+| * 987a9f6 Second commit
+| * 005e28b First commit
+| * db850ca (lab1-complete) Add sample_file.txt
+| * 5f4a7d6 (origin/lab1-complete) Task 2: Add summary of merge strategies
+| * c3e8e15 Task 1: Add summary of signed commits benefits
+|/  
+* 0fea98c (origin/master, origin/HEAD) lab2 Git
+* a107866 lab1 Intro
+
+
+```
+
+## Task 4: Tagging a Commit
+
+*   **Tag Name:** `v1.0.0`
+*   **Command Used:** `git tag v1.0.0` and `git push origin v1.0.0`
+*   **Associated Commit Hash:** `eca38fc62a3c4553480913a88f5830b8ebe6eae1`
+
+**Value of Tagging:** Tagging is valuable for creating stable release points in a project's history. It allows developers to check out a specific version and triggers automated build and deployment pipelines.
+
+## Bonus Task: GitHub Social Interactions
+
+Social features like starring and following build community and make it easier to discover projects and good developers. Following team members helps keep track of their contributions and activity across different repositories.

submission3.md

@@ -0,0 +1,90 @@
+# CI/CD Lab - GitHub Actions
+
+## Task 1: My Pipeline
+
+### Key Concepts
+
+* **Workflows:** Scripts that run automatically. You put them in `.github/workflows`.
+* **Events:** What triggers a workflow, like a `push` or a manual click.
+* **Jobs:** A set of steps that run on a server.
+* **Runners:** The servers that run your jobs (like Ubuntu, Windows, etc.).
+* **Steps:** The actual commands or actions inside a job.
+
+
+
+1. Made the `.github/workflows` folders.
+2. Created the `main.yml` file inside.
+3. Wrote the basic workflow to run on a push to `main`.
+4. Pushed the file to my repo. It didn't run at first because I was on a different branch, which makes sense.
+
+No errors.
+
+
+
+## Task 2: System Info and Manual Triggers
+
+### Workflow Changes
+
+I updated the `main.yml` file to do two new things:
+
+1. Added `workflow_dispatch:` so I could start it manually with a button on the Actions page.
+2. Added a new step to print out the runner's system details using commands like `uname` and `lscpu`.
+
+### Gathered System Information
+
+Here is the info I got from the runner when I ran the workflow manually.
+
+
+
+```
+--- Operating System ---
+Linux pkrvmxyh4eaekms 6.11.0-1015-azure #15~24.04.1-Ubuntu SMP Thu May  1 02:52:08 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
+
+--- CPU Information ---
+Architecture:                         x86_64
+CPU op-mode(s):                       32-bit, 64-bit
+Address sizes:                        48 bits physical, 48 bits virtual
+Byte Order:                           Little Endian
+CPU(s):                               4
+On-line CPU(s) list:                  0-3
+Vendor ID:                            AuthenticAMD
+Model name:                           AMD EPYC 7763 64-Core Processor
+CPU family:                           25
+Model:                                1
+Thread(s) per core:                   2
+Core(s) per socket:                   2
+Socket(s):                            1
+Stepping:                             1
+BogoMIPS:                             4890.86
+Flags:                                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl tsc_reliable nonstop_tsc cpuid extd_apicid aperfmperf tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves user_shstk clzero xsaveerptr rdpru arat npt nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload umip vaes vpclmulqdq rdpid fsrm
+Virtualization:                       AMD-V
+Hypervisor vendor:                    Microsoft
+Virtualization type:                  full
+L1d cache:                            64 KiB (2 instances)
+L1i cache:                            64 KiB (2 instances)
+L2 cache:                             1 MiB (2 instances)
+L3 cache:                             32 MiB (1 instance)
+NUMA node(s):                         1
+NUMA node0 CPU(s):                    0-3
+Vulnerability Gather data sampling:   Not affected
+Vulnerability Itlb multihit:          Not affected
+Vulnerability L1tf:                   Not affected
+Vulnerability Mds:                    Not affected
+Vulnerability Meltdown:               Not affected
+Vulnerability Mmio stale data:        Not affected
+Vulnerability Reg file data sampling: Not affected
+Vulnerability Retbleed:               Not affected
+Vulnerability Spec rstack overflow:   Vulnerable: Safe RET, no microcode
+Vulnerability Spec store bypass:      Vulnerable
+Vulnerability Spectre v1:             Mitigation; usercopy/swapgs barriers and __user pointer sanitization
+Vulnerability Spectre v2:             Mitigation; Retpolines; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
+Vulnerability Srbds:                  Not affected
+Vulnerability Tsx async abort:        Not affected
+
+--- Memory Information ---
+               total        used        free      shared  buff/cache   available
+Mem:            15Gi       759Mi        14Gi        39Mi       1.0Gi        14Gi
+Swap:          4.0Gi          0B       4.0Gi
+```
+
+---