Group Name: Escargot.
Team Mates:
- Wan Muhammad Syamil bin W Mohd Yusof ( 2220561 )
- Danish Darwis bin Shathibi ( 2210665 )
- You are allowed to have 3 group members.
- When you complete the assignment, make sure to submit the repository link of your cloned project. Make sure all the files are as what you aspect in your repository.
- Answer all questions in the README.md, in your own repository. Either use the online VSCode, terminal or github to edit. Answers are expected where you see Fill answer here.
- Learn how to use markdown. https://www.w3schools.io/file/markdown-introduction/
-
First thing you need in doing this assignment is to have a github account. Make sure to sign up at https://www.github.com
-
The second thing you need is to fork the Net&Sys Assignment repository in your own github account.
- Go to https://github.com/ZainabBashi/NatSysProject and click fork to copy the project into your own repository
- Make sure that the new fork is now in your own repository
Questions:
- What is the link of the fork Net&Sys Assignment in your repository. (1 mark) https://github.com/syamilu/NatSysProject.
- How many files and folders are in this repository. (1 mark) One folders with 6 file inside it, and 1 readme file.
- The next thing that we will be doing is exploring codespaces. First of all, read about codespaces https://docs.github.com/en/codespaces/overview#what-is-a-codespace
- Then go to the link https://github.com/codespaces and we shall start a new codespace.
- Click on New codespace.
- Choose your own Net&Sys Assignment repository to start your codespace.
- Once you have created you codespace, you will see the following. You might already be familiar with this, since it will look similar to VSCode.
- You will see the README file file. One is a preview of how it looks like on the web, and the other is the editing view in markdown language.
- Edit the README file. Make sure you have your group details correct, ie, group name and team members along with their matric Numbers.
- Once you have finish editing, click File->Save or ctrl-s to save it.
- After saving, you will notice an M or U next to your file. You will need to commit any changes, whenever you make changes so that it is uploaded to the github repository.
- Click on the source control, hint: its on the left side panel, and it will list down the files that have been modified or updated. Click on commit. It will then ask you "Would you like to stage all your changes and commit them directly?" Just say yes, and a new tab will appear. Type a message to log what you have done, and click on the check mark.
- After that, sync the changes to the main repository.
- Make sure to commit and sync your files to the main repository, or else, your work will be lost since it is not saved into the main repository when you submit your project.
Questions:
- What is default OS used to run the virtual environment for codespaces. (1 mark)
Linux Ubuntu - What are the two options of RAM, disk and vcpu configuration you can have in running codespaces . (1 mark)
. - Why must we commit and sync our current work on source control? (1 mark) So that changes that we do will reflected on our github and our main branch.
- Look at the TERMINAL tab. Explore and run commands according to the questions below.
- You can include your answers as images, or cut and paste the output here. If you are cutting and pasting your answers, wrap your answers in the codeblock clause in markdown. For example, if i run the command whoami the the output would look like the one below.
@joeynor ➜ /workspaces/OSProject (main) $ whoami
codespaceQuestions:
Look at the TERMINAL tab. Run the following commands and provide the output here.
- Run the command pwd . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ pwd
/workspaces/NatSysProject- Run the command cat /etc/passwd . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
_apt:x:100:65534::/nonexistent:/usr/sbin/nologin
systemd-timesync:x:101:101:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin
systemd-network:x:102:103:systemd Network Management,,,:/run/systemd:/usr/sbin/nologin
systemd-resolve:x:103:104:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin
messagebus:x:104:105::/nonexistent:/usr/sbin/nologin
codespace:x:1000:1000::/home/codespace:/bin/bash
sshd:x:105:65534::/run/sshd:/usr/sbin/nologin- Run the command df . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ df
Filesystem 1K-blocks Used Available Use% Mounted on
overlay 32847680 10381056 20772524 34% /
tmpfs 65536 0 65536 0% /dev
shm 65536 8 65528 1% /dev/shm
/dev/root 30298176 24478832 5802960 81% /vscode
/dev/loop3 32847680 10381056 20772524 34% /workspaces
/dev/sda1 46127956 100 43752280 1% /tmp- Run the command du . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ du
1972 ./images
28 ./screenshot
8 ./.git/info
4 ./.git/branches
4 ./.git/lfs/tmp
8 ./.git/lfs
8 ./.git/refs/heads
12 ./.git/refs/remotes/origin
16 ./.git/refs/remotes
4 ./.git/refs/tags
32 ./.git/refs
8 ./.git/logs/refs/heads
12 ./.git/logs/refs/remotes/origin
16 ./.git/logs/refs/remotes
28 ./.git/logs/refs
36 ./.git/logs
8 ./.git/objects/c3
8 ./.git/objects/0d
4 ./.git/objects/info
8 ./.git/objects/fe
8 ./.git/objects/83
8 ./.git/objects/86
8 ./.git/objects/b2
8 ./.git/objects/24
16 ./.git/objects/b5
12 ./.git/objects/1c
12 ./.git/objects/70
12 ./.git/objects/14
8 ./.git/objects/58
8 ./.git/objects/a3
8 ./.git/objects/47
8 ./.git/objects/93
12 ./.git/objects/73
8 ./.git/objects/cd
8 ./.git/objects/e7
8 ./.git/objects/74
12 ./.git/objects/3d
8 ./.git/objects/f6
8 ./.git/objects/cb
12 ./.git/objects/6e
8 ./.git/objects/0b
16 ./.git/objects/04
8 ./.git/objects/91
8 ./.git/objects/4a
12 ./.git/objects/d2
8 ./.git/objects/98
8 ./.git/objects/e9
12 ./.git/objects/72
8 ./.git/objects/b9
12 ./.git/objects/62
8 ./.git/objects/fa
12 ./.git/objects/af
8 ./.git/objects/b6
12 ./.git/objects/44
8 ./.git/objects/52
8 ./.git/objects/1b
12 ./.git/objects/64
12 ./.git/objects/17
8 ./.git/objects/a6
8 ./.git/objects/7b
8 ./.git/objects/eb
8 ./.git/objects/3f
16 ./.git/objects/fb
8 ./.git/objects/81
8 ./.git/objects/60
8 ./.git/objects/ab
8 ./.git/objects/71
8 ./.git/objects/4f
12 ./.git/objects/2e
8 ./.git/objects/41
1824 ./.git/objects/pack
8 ./.git/objects/49
8 ./.git/objects/c6
8 ./.git/objects/4b
8 ./.git/objects/20
8 ./.git/objects/d8
8 ./.git/objects/3a
8 ./.git/objects/96
8 ./.git/objects/f2
8 ./.git/objects/fd
8 ./.git/objects/fc
12 ./.git/objects/ff
12 ./.git/objects/e5
2440 ./.git/objects
68 ./.git/hooks
2632 ./.git
4652 .- Run the command ls . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ ls
README.md images screenshot- Run the command ls -asl . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ ls -asl
total 40
4 drwxrwxrwx+ 5 codespace root 4096 Jun 6 08:23 .
4 drwxr-xrwx+ 5 codespace root 4096 Jun 6 08:10 ..
4 drwxrwxrwx+ 9 codespace root 4096 Jun 6 08:19 .git
20 -rw-rw-rw- 1 codespace root 17129 Jun 6 08:42 README.md
4 drwxrwxrwx+ 2 codespace root 4096 Jun 6 08:10 images
4 drwxrwxrwx+ 2 codespace codespace 4096 Jun 6 08:26 screenshot- Run the command free -h . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ free -h
total used free shared buff/cache available
Mem: 7.7Gi 1.4Gi 237Mi 1.0Mi 6.1Gi 6.0Gi
Swap: 0B 0B 0B- Run the command cat /proc/cpuinfo . (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 25
model : 1
model name : AMD EPYC 7763 64-Core Processor
stepping : 1
microcode : 0xffffffff
cpu MHz : 3243.576
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
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 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 invpcid_single vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr rdpru arat npt nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload umip vaes vpclmulqdq rdpid fsrm
bugs : sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass srso
bogomips : 4890.85
TLB size : 2560 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : AuthenticAMD
cpu family : 25
model : 1
model name : AMD EPYC 7763 64-Core Processor
stepping : 1
microcode : 0xffffffff
cpu MHz : 3243.924
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
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 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 invpcid_single vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr rdpru arat npt nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload umip vaes vpclmulqdq rdpid fsrm
bugs : sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass srso
bogomips : 4890.85
TLB size : 2560 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management:- Run the command top and type q to quit. (1 mark)
top - 08:44:41 up 41 min, 0 users, load average: 0.55, 0.32, 0.29
Tasks: 17 total, 1 running, 16 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 7929.6 total, 240.5 free, 1460.2 used, 6228.8 buff/cache
MiB Swap: 0.0 total, 0.0 free, 0.0 used. 6153.3 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 codespa+ 20 0 1136 640 640 S 0.0 0.0 0:00.07 docker-init
8 codespa+ 20 0 7236 1664 1664 S 0.0 0.0 0:00.01 sleep
64 root 20 0 12196 3352 2432 S 0.0 0.0 0:00.00 sshd
918 root 20 0 1983176 86596 52480 S 0.0 1.1 0:00.36 dockerd
925 root 20 0 1798832 46500 30464 S 0.0 0.6 0:00.52 containerd
2194 codespa+ 20 0 2616 1536 1536 S 0.0 0.0 0:00.01 sh
2227 root 20 0 2616 1536 1536 S 0.0 0.0 0:00.00 sh
2364 codespa+ 20 0 2624 1536 1536 S 0.0 0.0 0:00.01 sh
2373 codespa+ 20 0 1318188 94096 45440 S 0.0 1.2 0:07.62 node
2394 codespa+ 20 0 21.5g 331208 49920 S 0.0 4.1 0:40.74 node
2410 codespa+ 20 0 1240564 52772 41344 S 0.0 0.6 0:00.35 node
2872 codespa+ 20 0 1116336 57780 42240 S 0.0 0.7 0:02.13 node
2890 codespa+ 20 0 1013300 80912 40960 S 0.0 1.0 0:04.31 node
3991 codespa+ 20 0 2616 1664 1664 S 0.0 0.0 0:00.00 sh
4040 root 20 0 2616 1408 1408 S 0.0 0.0 0:00.00 sh
4276 codespa+ 20 0 16628 11392 3328 S 0.0 0.1 0:00.18 bash
19235 codespa+ 20 0 10884 3712 3200 R 0.0 0.0 0:00.00 top - Run the command uname -a. (1 mark)
@syamilu ➜ /workspaces/NatSysProject (main) $ uname -a
Linux codespaces-c26b6f 6.5.0-1021-azure #22~22.04.1-Ubuntu SMP Tue Apr 30 16:08:18 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux- What is the available free memory in the system. (1 mark) 240.5MB.
- What is the available disk space mounted on /workspace. (1 mark) 32847680.
- Name the version and hardware architecture of the linux Virtual environment. (1 mark) Linux Ubuntu 22.04.1 X86_64.
- What is the difference between ls vs ls -asl. (1 mark) ls list the content of directory(files and directories) while ls -asl stands for all, size and long listing including owner, file size, times.
- What is the TLB size of the Virtual CPU. (1 mark) 2560 4K pages.
- What is the CPU speed of the Virtual CPU. (1 mark) cpu MHz : 3243.576.
- What is the top running process that consumes the most CPU cycles. (1 mark) Process with PID 2394.
- At the terminal, run a linux instance. By typing the following command.
docker pull debian
docker run --detach -it debian
- This will run the debian container. To check if the debian container is running, type
@joeynor ➜ /workspaces/OSProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f65be1987f84 debian "bash" 4 minutes ago Up 4 minutes romantic_jacksonMy version
@syamilu ➜ /workspaces/NatSysProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
11ff2ff4dff3 debian "bash" 2 minutes ago Up 2 minutes elegant_thompson- Keep note of the name used by your container, this is usually given random names unless you specify your own name. Now run a bash command on the container. Make sure you use the name of your container instead of the one shown here.
docker exec -i -t elegant_thompson /bin/bash- Create a file on the container. First you must make sure you are in the bash command prompt of the container. The container is new, and does not have any software other than the debian OS. To create a new file, you will need an editor installed. In the bash shell of the container, run the package manager apt-get to install nano text editor.
root@f65be1987f84:~# apt-get update
root@f65be1987f84:~# apt-get install nano
root@f65be1987f84:~# cd /root
root@f65be1987f84:~# nano helloworld.txt-
Edit your helloworld.txt, create your messsage and save by typing ctrl-X. Once saved, explore using the container to see where the file is located. Then exit the shell, by typing exit.
-
Stop the container and run docker ps -a, and restart the container again. Is your file in the container still available?
@joeynor ➜ /workspaces/OSProject (main) $ docker stop romantic_jackson
@joeynor ➜ /workspaces/OSProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f65be1987f84 debian "bash" 19 minutes ago Exited (137) 18 seconds ago romantic_jackson
@joeynor ➜ /workspaces/OSProject (main) $ docker restart romantic_jacksonMy version
@syamilu ➜ /workspaces/NatSysProject (main) $ docker stop elegant_thompson
elegant_thompson
@syamilu ➜ /workspaces/NatSysProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
11ff2ff4dff3 debian "bash" 10 minutes ago Exited (137) 16 seconds ago elegant_thompson
@syamilu ➜ /workspaces/NatSysProject (main) $ docker restart elegant_thompson
elegant_thompson
@syamilu ➜ /workspaces/NatSysProject (main) $ docker exec -i -t elegant_thompson /bin/bash
root@11ff2ff4dff3:/# cd /root
root@11ff2ff4dff3:~# ls
helloworld.txt
root@11ff2ff4dff3:~# cat helloworld.txt
hello world!The file in the container still available
- Stop the container and delete the container. What happened to your helloworld.txt?
@joeynor ➜ /workspaces/OSProject (main) $ docker stop romantic_jackson
@joeynor ➜ /workspaces/OSProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f65be1987f84 debian "bash" 19 minutes ago Exited (137) 18 seconds ago romantic_jackson
@joeynor ➜ /workspaces/OSProject (main) $ docker rm romantic_jacksonMy version :
@syamilu ➜ /workspaces/NatSysProject (main) $ docker stop elegant_thompson
elegant_thompson
@syamilu ➜ /workspaces/NatSysProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
11ff2ff4dff3 debian "bash" 15 minutes ago Exited (137) 21 seconds ago elegant_thompson
@syamilu ➜ /workspaces/NatSysProject (main) $ docker rm elegant_thompson
elegant_thompsonMy helloworld.txt files will be deleted when we remove the container
Questions:
- Are files in the container persistent. Why not?. (1 mark) The files in the container is not persistent when we remove the container because the file is attacheed to the container. Removing the container will result of the file will be deleted also.
- Can we run two, or three instances of debian linux? . (1 mark) Yes
@syamilu ➜ /workspaces/NatSysProject (main) $ docker run --detach -it debian
5d1c6f3faf1cfc82655e41025a4bf7f26a916645e532544c878e36c468c42f1b
@syamilu ➜ /workspaces/NatSysProject (main) $ docker run --detach -it debian
7e58849accdbcb4e19066f6252b2945345ba8a874ea117b7dbc52f3046501fa2
@syamilu ➜ /workspaces/NatSysProject (main) $ docker run --detach -it debian
8090277bf1d83f441b766d80cbff2def5ac429df1dff39dcb43007faed4e6bcb
@syamilu ➜ /workspaces/NatSysProject (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8090277bf1d8 debian "bash" 5 seconds ago Up 3 seconds jolly_mirzakhani
7e58849accdb debian "bash" 7 seconds ago Up 6 seconds friendly_gauss
5d1c6f3faf1c debian "bash" 9 seconds ago Up 8 seconds jovial_hugle- In the previous experiment, you might have notice that containers are not persistent. To make storage persistent, you will need to mount them. At the terminal, create a new directory called myroot, and run a instance of debian linux and mount myroot to the container. Find out the exact path of my root, and mount it as the root folder in the debian container.
- Create a file in /root on the container, the files should also appear in myroot of your host VM.
@joeynor ➜ /workspaces/OSProject (main) $ mkdir myroot
@joeynor ➜ /workspaces/OSProject (main) $ cd myroot/
@joeynor ➜ /workspaces/OSProject/myroot (main) $ pwd
/workspaces/OSProject/myroot
@joeynor ➜ /workspaces/OSProject/myroot (main) $ docker run --detach -it -v /workspaces/OSProject/myroot:/root debianMy version :
@syamilu ➜ /workspaces/NatSysProject (main) $ mkdir myroot
@syamilu ➜ /workspaces/NatSysProject (main) $ cd myroot/
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ pwd
/workspaces/NatSysProject/myroot
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ docker run --detach -it -v /workspaces/NatSysProject/myroot:/root debian
60c026be0cca46c9fd6694c8165a52c743e3a2c419f1378a33c46d792f559f74
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
60c026be0cca debian "bash" 4 seconds ago Up 3 seconds tender_panini
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ docker exec -i -t tender_panini /bin/bash
root@60c026be0cca:~# vim helloearth.txt
root@60c026be0cca:~# ls
helloearth.txt
@syamilu ➜ /workspaces/NatSysProject (main) $ cd myroot/
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ ls
helloearth.txtQuestions:
- Check the permission of the files created in myroot, what user and group is the files created in docker container on the host virtual machine? . (2 mark) root root
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ ls -la
total 16
drwxrwxrwx+ 2 codespace codespace 4096 Jun 11 03:37 .
drwxrwxrwx+ 6 codespace root 4096 Jun 11 03:32 ..
-rw------- 1 root root 1028 Jun 11 03:37 .viminfo
-rw-rw-rw- 1 root root 13 Jun 11 03:37 helloearth.txt- Can you change the permission of the files to user codespace. You will need this to be able to commit and get points for this question. (2 mark)
//use sudo and chown
sudo chown -R codespace:codespace myroot
*** Yes i can.***
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ sudo chown -R codespace:codespace helloearth.txt
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ sudo chown -R codespace:codespace .viminfo
@syamilu ➜ /workspaces/NatSysProject/myroot (main) $ ls -la
total 16
drwxrwxrwx+ 2 codespace codespace 4096 Jun 11 03:37 .
drwxrwxrwx+ 6 codespace root 4096 Jun 11 03:32 ..
-rw------- 1 codespace codespace 1028 Jun 11 03:37 .viminfo
-rw-rw-rw- 1 codespace codespace 13 Jun 11 03:37 helloearth.txt- Create a directory called webpage in your host machine
- Inside the directory, create a page index.html, with any content you would like
- Then, run the apache webserver and mount the webpage directory to it. Hint:
## the -p 8080:80 flag points the host port 8080 to the container port 80
docker run --detach -v /workspaces/OSProject/webpage:/usr/local/apache2/htdocs/ -p 8080:80 httpd- If it works, codespace will trigger a port assignment and provide a URL for you to access your webpage like the one below.
-
You can also see the Port in the PORTS tab, next to the terminal tab.
-
You can then access your website by adding an index.html towards the end of your url link, like the one below.
Questions:
- What is the permission of folder /usr/local/apache/htdocs and what user and group owns the folder? . (2 mark) Fill answer here.
Permission: of /usr/local/apache2/htdocs are 755 (rwxr-xr-x).
User and group: myroot- What port is the apache web server running. (1 mark)
docker run --detach -v /workspaces/NatSysProject/webpage:/usr/local/apache2/htdocs/ -p 3000:80 httpd
Port: 80- What port is open for http protocol on the host machine? (1 mark)
docker run --detach -v /workspaces/NatSysProject/webpage:/usr/local/apache2/htdocs/ -p 3000:80 httpd
Port: 3000
- In docker, you can create your own private networks where you can run multiple services, in this part, we will create two networks, one called bluenet and the other is rednet
- Run the docker create network to create you networks like the ones below
## STEP 1:
## Create Networks ##
docker network create bluenet
docker network create rednet`
## STEP 2: (automatically running)
## Create (1) Container in background called "c1" running busybox image ##
docker run -itd --net bluenet --name c1 busybox sh
docker run -itd --net rednet --name c2 busybox shQuestions:
- Describe what is busybox and what is command switch --name is for? . (2 mark) Fill answer here.
busybox = lightweight Unix utility that combines many common UNIX utilities into a single small executable, making it ideal for minimal environments like Docker containers.
--name = assign custom name to a container.- Explore the network using the command
docker network ls, show the output of your terminal. (1 mark)
- Using
docker inspect c1anddocker inspect c2inscpect the two network. What is the gateway of bluenet and rednet.? (1 mark)
bluenet: "Gateway": "172.18.0.1",
rednet: "Gateway": "172.19.0.1",- What is the network address for the running container c1 and c2.
c1: "IPAddress": "172.18.0.2",
c2: "IPAddress": "172.19.0.2",- Using the command
docker exec c1 ping c2, which basically issue a ping from container c1 to c2. Are you able to ping? Show your output . (1 mark)
I can't ping
- Let's try this again by creating a network to bridge the two containers in the two subnetworks
docker network create bridgenet
docker network connect bridgenet c1
docker network connect bridgenet c2
docker exec c1 ping c2
- Make sure to commit all changes on your source control, and make sure your source control is sync to the repository.
- Check your repository link, to see if all the files and answers are included in the repository.
- Submit through italeem, by providing the link to your repository.
- Due by 30 May, 2024