5/4/20 Devops

Whatever products we implement, there are many tools that intergate with each other

Somethings that we have learned today:

1. Integrate Jenkins with Docker

2.Used cases of Jenkins, Docker

3.Chaining between jobs

4.Jenkins server

 Notes:

If you want to download a program/service, youll need Operating System

Os - UM (Virtual)

Program/service --> [Container] - (Also known as provisioning) installed but login

Docker is Agile/rapid

It will start provision you 

Dockerhub is the placed to download docker

They don't give 

docker images is used to check if you have docker

docker run  -t -i --name myos1 ubuntu 

docker ps tells you how many os 

Docker has own ip 

Ubuntu command os apt 

exit to get out from docker

COmputer -> github -fitch--> Jenkins deployed

  Rhel 8   |

         |  |

 |  v  

    System -> OS -> Webserver

^

| 

|

Manual and fast

Docker image for webserver

httpd for the webserver which they already made avaliable

If you want to use the image, do docker pull httpd

httpd 

______

Own dockerimage  

has -webserver OS

If someone asks you to download 

docker run to launch OS

docker run -d -t -i --name myweb1  httpd

You'll its not docker because the d is detach

Running one command, your container technology they configure the webserver for you

client can connect to webserver

since docker has its own ip you can check it by typing IP

We'll use the same setup and the same envolvement for httpd

run docker ten times to create 10 OS servers

[index.html  ]

[Ubuntu server]

[O.S.   ]

[Phy     ]

You can check the commands of docker by doing man docker

copy/deploy

cat index.html

You have to copy he os from the folder

cp to copy

keep on changing the code

-----------------------------------------

mkdir /lwweb

cd /lwweb

ls

cat > index.html

cat > lw.html

cat > samsweb.html

------------------------------------------------------------

Instead of copy

its operated in /lwweb:/usr/local/apache2/html

-------------------------------------------------------------------

cd /lwweb/

pwd

/lwweb

ls

__________________

VM

|

\

 v

[RHEL]

_______________________________

httpd

|  \

[IP] v

    docker

_____________________________________

docker

              \

When you launch any OS ===ENV 

security reason, they launch the os 

security -> Isolated

Rhel 8

_______________________

[docker]     [docker]

IP___|_________________|___IP

Inside Redhat, 2 OS are running

In the OS, webserver is running

ipconfig

the outside world can connect with the IP adress

Ask the outside world, if you want to connect to the Docker I have, In the system, ask the system to connect

The computer will ask the owner of the docker and give permission to come in

Client

|

|

v

IP

RHEL8     docker

---------------------------------

[/;wweb]   [/userlexl----------/

----------------------------------------------------------

  [Client]-------- /

  /

          |-------------/

[JENKINS] -------->[RHEL 8]

\

 \

 JOB -> github 9down -> copy

  |           

  ----job -> deploy [ENV] 

------------------------------------------------------------------

win---

   |

   v

 [DEV]

  |

  --->6 month

---------------------------------------------------------------------

Repo in git and jenkins

jenkins all=(all)

jenkins power password

jenkins power is equivelent to root user

sudo cp -v -r -f * /

if date 

TO shut down:

: you can check from jenkins

We achieved job 1 and 2

github

 |

 v

job1

Basically you might need to know html in order to know this 

OS is running inside the java

Job1 

 |

 v

Job2

downstreamed from job1 to job2

Without touching a job you can do stuff

If it is sucessful it will do it on job2

downstream projects are seen with associated server so in this case job 1