video reference: https://www.youtube.com/watch?v=_lBaedX4UAE
Mukesh otwani playlist : https://www.youtube.com/playlist?list=PL6flErFppaj1quyeiIF8Rz7nlBPOZTk6d
docker install on windows - on ubuntu :
Turn Windows Feature on and off: select
1. virtual machine plateform
2. Windows subsystem for linux
3. Restart the system
download and install : WSL2 Linux kernel update package for x64 machines
Powershell > wsl -l -o
Powershell > wsl --install -d Ubuntu-22.04
Powershell > sudo apt update
Powershell > sudo apt install docker.io
Powershell > docker --version
Powershell > docker-compose --version
$ sudo apt-get remove docker docker-engine docker.io ==> remove existing docker installed if any
$ sudo apt-get update ==> update Linux
$ sudo apt install docker.io ==> docker installation command
$ sudo snap install docker ==> other decker dependencies also needed
$ docker --version ==> check the installed docker version
$ sudo docker run hello-world ==> install hello-world docker image
$ sudo docker images ==> Show docker images list in local
$ sudo docker ps -a ==> to show both the stopped and running docker containers
$ sudo docker ps ==> process status
$ sudo docker pull selenium/hub -d ==> download the docker image
$ sudo docker pull selenium/node-chrome-debug ==> download the latest docker image
$ sudo docker pull selenium/node-firefox-debug ==> download the latest docker image
$ sudo docker images ==> show docker images list in local
****** run docker images on Windows Subsystem for Linux - STANDALONE SETUP: ******
reference Link : https://github.com/SeleniumHQ/docker-selenium#quick-start
Note: Only one Standalone container can run on port 4444 at the same time.
docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-chrome :4.12.1-20230920
docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-firefox:4.12.1-20230920
docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-edge:4.12.1-20230920
Execute below code from local eclipse : works fine
ChromeOptions co = new ChromeOptions();
WebDriver driver = new RemoteWebDriver(new URL("http://localhost:4444/"),co);
$sudo docker stop <Container_ID>
$sudo docker rm <Container_ID>
**************************Docker Compose Commands **************************
$ sudo apt-get install docker-compose-plugin ==> install docker-compose
$ docker-compose --version
$ mkdir DockerComposeFile ==> create folder
$ nano docker-compose.yml ==> create docker-compose file
$ docker-compose config ==> check error in docker-compose.yml file
$ docker-compose up -d ==> run docmer.compose.yml file
$ docker-compose down ==> bring everything down run by docker compose
$ docker-compose --help ==> get help
$ docker-compose up -d --scale mysql=4 ==> created 4 instances of sql (any service)
*************************** Hub - Node in docker ******************************
$ docker network create grid
$ docker run -d -p 4442-4444:4442-4444 --net grid --name selenium-hub selenium/hub:4.12.1-20230920
$ docker run -d --net grid -e SE_EVENT_BUS_HOST=selenium-hub \
--shm-size="2g" \
-e SE_EVENT_BUS_PUBLISH_PORT=4442 \
-e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 \
selenium/node-chrome:4.12.1-20230920
$ docker run -d --net grid -e SE_EVENT_BUS_HOST=selenium-hub \
--shm-size="2g" \
-e SE_EVENT_BUS_PUBLISH_PORT=4442 \
-e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 \
selenium/node-edge:4.12.1-20230920
$ docker run -d --net grid -e SE_EVENT_BUS_HOST=selenium-hub \
--shm-size="2g" \
-e SE_EVENT_BUS_PUBLISH_PORT=4442 \
-e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 \
selenium/node-firefox:4.12.1-20230920
****************************************************************************
****************************************************************************
$ sudo docker run -d -p 4567:4444 --name selenium-hub selenium/hub
check if hub is running : http://localhost:4546 ==> hub should be running
$ sudo docker run -d -p <hostPort>:<containerPort> --link selenium-hub:hub selenium/node-chrome-debug
$ sudo docker run -d -p --link selenium-hub:hub selenium/node-chrome-debug
$ sudo docker run -d -p --link selenium-hub:hub selenium/node-firefox-debug
$ sudo docker run -d -p 4444:4444 --name selenium-hub selenium/hub
$ sudo docker run -d -p <hostPort>:<containerPort> --link selenium-hub:hub selenium/node-chrome-debug
$ sudo docker run -d --link selenium-hub:hub selenium/node-firefox-debug
***************************SETUP DOCKER ON FRESH AWS ********************
* windows machine on cloud is same as our windows laptop
* AWS contains remote machines >> remote machine contains docker >> docker contains Containers of chrome, firefox and edge browsers
CREATE AWS ACCOUNT:
https://signin.aws.amazon.com/ >> root user email / pass>> personal >> credit card info >> account created
Search VPC ( virtual privat cloud ) >> your vpc >> on Top right side ACTION >> create default VPC >>
Top left SERVICES >> EC2 >> EC2 DashBoard >> top right Launch Instance >> Select "Free Tier eligible" AmazonLinux 2 AMI (HVM) image >> select "Free tier eligible " >> Configure instance details (keep as it is)
>> next : Add Storage >> next : add Tags >> next: Configure security group >> Review and Launch >> Launch >> create a new key pair >> select RSA radio button >> enter any keypair name "myLinuxMachine" >> download keypair >> Launch Instance >> view Instance >> wait for Instance state "Running" >> click "Instance ID" Link >> copy public IPv4 >> Security >> Security Group >> launch wizard link >> Edit Inbound Rule >> Add Rule Custome TCP >> Port Range 4444 >> Source = anywhere >> save rules >> Instance from left navigation >> Instance Id link >> Connect >>
for linux { SSH clinet} >> open location of downloaded keypair in cmd >> c:\downloads > ssh -i "myLinuxMachine" ec2-user@99.111.22.33 , here 99.111.22.33 is your public ipv4 >> YES >> you are connected to amazon linux machine .
$sudo su ==> login as root user
# yum update -y ==> package manager to install everything
# yum install java-1.8.0-openjdk -y ==> Install java
# yum remove java -y ==> to remove java
# yu install maven ==> install maven
# mvn --version ==> check installed maven version
# yum install docker ==> to install docker
# docker --version
# systemct1 start docker ==> start docker
# systemct1 enable docker ==> enable docker
# systemct1 restart docker ==> restart docker
# docker ps ==> tells how many docker containers are running "Process Status"
# docker stop <containerid> ==> stops the particular container
# docker rm <Container id> ==> removes the particular docker container, However, image will still be there to create a container from that image
# docker images ==> shows the docker images available
# docker run -d -p 4444:4444 -p 7900:7900 --shm-size="2g" selenium/standalone-firefox:4.11.0-20230801 ==> run a docker container with firefox from image, if not available downloads image also
# docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-firefox:4.11.0-20230801
# docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-chrome:4.11.0-20230801
# docker run -d -p 4444:4444 --shm-size="2g" selenium/standalone-edge:4.11.0-20230801
open browser >> yourpublic ipv4 : 4444 in this case 99.111.22.33:4444
Play with docker without installing it : https://labs.play-with-docker.com/
****************************************************************************
****************************************************************************
Raghav docker playlist : https://www.youtube.com/watch?v=wi-MGFhrad0&list=PLhW3qG5bs-L99pQsZ74f-LC-tOEsBp2rK&index=1
dockerFile --> developers requirements ( like recipe with all ingredients and steps to make a dish)
docker images --> application + requirements + dependencies . these images can be pulled in any env to create docker container
Docker container --> This is run time instance of docker images
Docker Hub --> online repository where docker images are stored.
virtualization --> virtual box ( resource allocation is fized and does not change as per application needs containerization --> docker ( lightweight alternatives to vm)
Docker has client-server architecture
Deamon (server) received the command from the docker client through cli or REST APIs
Docker client and deamon can be present on the same host machine or differtent hosts
Docker Engine = client ( CLI) + Server ( Docker Deamon +Container1+ container2 + container3)
Play with docker without installing it : https://labs.play-with-docker.com/
docker manual : http://docs.docker.oeynet.com/engine/installation/
docker installation commands on ubuntu: http://docs.docker.com/engine/install/ubuntu/
$ sudo apt-get update
$ sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-common
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
$ sudo apt-key fingerprint 0EBFCD88
$ sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io
$ sudo docker -v
$ sudo docker run hello-world
$ sudo docker images
$ sudo docker ps -a
$ sudo docker run hello-world
Containers : are running instances fo Docker images. a container image is a lightweight , standalone , executable package of a piece of software that includes everything needed to run it . code, runtime, system tools, system lybraries, settings.
It uses less resources, booting of containers is very fast , can start , stop kill remove containers easily and quickly , OS resources can be shared within docker, Containers run on the same machinee sharing the same os kernel . this makes it faster
what are images : Docker images are templates used to create docker containers . Container is a running instance of image.
Where images are stored : Docker hub , locally , remote
Dockers can build images automatically by reading the instructions from a dockerfile.
A single image can be used to create multiple containers
Docker Compose : tool for defining and runnig multi-container docker applications
use yaml files to comfigure application services
can start all services with a single command
docker volumes: By default all files created inside a container are stored on ta writeble container layer
the data does not persist when that container is no longer running
A containers writable layer is tightly coupled to the host machine where the container is running. you can not easliy move the data somewhere else
docker has two optons for containers to store files in the host machine so that the files are persisteed even after the containers stops.
volumes are stored na part of host flesystems which is managed by docker
Non docker processes should not modify this part of the filesystem
Bind mount may be stored anywhere on the host system
Non docker processes on the docker host or an docker container can modify then at any time
Bind mounts the file or directory is referenced by its full path on the host machine.
volumes are the best way to persist data in Docker
volumes are managed by Docker and are solated from the core functionality of the host machine.
A given volume can be mounted into multiple containers simultaniously .
When no running container is useing a volume the volume is still available to docker and s not removed automatcally. yo can remove unused volumes using docker volume prune .
When you mount a volume it may be name dor anonymus.
Anonymus volumes are not given an explicit name when they are first mounteed into a container.
Volumes also support the use of volume dreivers which allows you to store your data on remote hosts or cloud providers among other possblties.
docker commands help : https://get.docker.com/
installation steps for Amazon EC2 : https://docs.aws.amazon.com/AmazonECS/latest/developerguide/docker-basics.html
Basic :
sudo docker version
sudo docker -v
sudo docker --version
sudo docker info
sudo docker --help
sudo docker login
sudo export PS1="\u$" this is to shorten the command line name
Images :
sudo docker images --help to get help
sudo docker images to view the images
sudo docker images -a to view the images
sudo docker images -q to get the images id
sudo docker pull ubuntu // to pull images from Docker Hub site // sudo docker run ubuntu is better command
sudo docker pull image
sudo docker images -f "dangling=false" show images which are NOT associated with container
sudo docker images -f "dangling=false" -q shows only imagesID NOT associated with container
sudo docker images -f "dangling=true" show images associated with container
sudo docker rmi --help
sudo docker run image
sudo docker rmi image
sudo docker rmi -f image
sudo docker rmi imageIDxxx to remove docker image
Containers:
sudo docker ps --help
sudo docker run ubuntu
sudo docker ps -a shows the list of container running from the image
sudo docker run ubuntu if image is not available locally , it will be downloaded and run
sudo docker run -it ubuntu bash start the shell
sudo docker start containerID/Name to start containers, you can not attach stopped container, start it first
sudo docker attach containerID/Name to attach containers
sudo docker kill containerID/Name
sudo docker stop containerID/Name to stop containers
sudo docker run -it ubuntu go inside ubuntu
sudo docker inspect ubuntu
sudo docker rm containerID to remove the container
sudo docker history imageName
sudo docker pause MyUbuntuName
sudo docker unpause MyUbuntuName
sudo docker top MyUbuntuName to see the top process of that containers
sudo docker stats MyUbuntuName
sudo docker container create to create container in stopped state
sudo exit move back to our system
System :
docker system df to check disk usage of docker
docker system prune --help CAUTION : use with very carefully
jenkns:
sudo docker pull jenkins // to pull images from Docker Hub site
sudo docker run -p 8080:8080 -p 50000:50000 jenkins // to jenkins on docker container
sudo docker run --name myjenkins1 -v myvolume1:/var/jenkins_home -p 8080:8080 -p 50000:50000 jenkins // to jenkins on docker container
sudo docker run --name myjenkins1 -p 8080:8080 -p 50000:50000 -v /users/ravinder/desktop/jenkins_home :/var/jenkins_home jenkins
sudo docker volume create
sudo docker volume ls // to see the docker volumes list
sudo docker volume inspect myjenkins1 // to get the mountpoint
creating docker file :
mkdir dockerfiles
cd dockerfiles
cat > dockerfile
vi dockerfile
FROM
RUN
CMD // enter the file contant in it
https://github.com/wsargent/docker-cheat-sheet#dockerfile
sudo docker build -t myimage1:1.0 . // enter dot if you in the same directory where the docker file is present
sudo docker run imageID
Dockerfile : A text file ith instructions to build image automation of docker mage creation
step1 : create a fle named Dockerfile
step2 : Add instructions in Dockerfile
step3 : Build dockerfile to create image
step4 : Run image to create container
Docker Compose : tool for defining and running multi container docker applications
sudo docker-compose -v // to check the version of dockercompose
sudo docker-compose version
sudo docker-compose --version
sudo curl -L https://github.com/docker/compose/releases/download/1.25.4/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
// to install composes
$pip install -u docker-compose // method 2 - to install composes
Create Services:
mkdir DockerComposeFile
cd DockerComposeFile
touch docker-compose.yml
vi docker-compose.yml // edit the file and enter below details in the file
version: '3'
services:
web:
image: nginx
ports:
- 9090:80/tcp
database:
image: redis // copy the above code in file as it is with line space and spaces
docker-compose config // to check the validity of below file
sudo docker-compose up // can start all services with a single command
sudo docker-compose up -d // to run the yml file in detached mode
localhost:9090 // to check if nginx is running or not
sudo docker-compose --help // to get help
sudo docker-compose -up -d -- scale database =4 // creates 4 db instances . can scale up selected services when required
sudo docker-compose down // to stop all services with a single command
docker Volumes: mechanism for persisting data generated by and used by docker containers
sudo docker volume --help
sudo docker volume create myvolume1 // create volume
sudo docker volume ls // list of volumes
sudo docker volume inspect myvolume1
sudo docker volume
pending practical : sharing the same volume by two containers
Bind mount : to store data at physical location instead of volume
sudo docker run --name myjenkins3 -v /users/ravinder/desktop/jenkins_home:/var/jenkins_home -p 9191:8080 -p 40000:50000 jenkins
Docker Swarm : is a group of machines that are running dockers and joined into a cluster
sudo docker-machine --help // help
sudo docker-machine create --driver virtualbox manager1 // to create manager1
sudo docker-machine create --driver virtualbox worker1 // to create worker1
sudo docker-machine create --driver virtualbox worker2 // to create worker2
sudo docker-machine ls // to see the created manager and worker
Sudo Brew cask install virtualbox // to
sudo apt install linuxbrew-wrapper // install brue if not already installed
sudo docker-machine ls
sudo docker-machine ip machine1 // shows ip address of machine
sudo docker-machine ssh manager1 // connect to manager1 account
sudo docker-machine ssh worker1 // connect to worker1 account
sudo docker-machine ssh worker2 // connect to worker2 account
sudo docker-machine ip manager1 // get the ip address of manager
sudo docker swarm init -- advertise-addr ipAddressOfManager1 // initilize docker swarm and assigns manager1 as manager role
sudo docker node ls // tells manager1 is now assigned as manager role. this command will not work on worker node
sudo docker swarm // shows all the commands
sudo docker swarm join-token worker1 // for manager to join the worker1
sudo docker swarm join-token manager1 // for worker1 to join the manager1
sudo docker info // get details from manager1 account
// create replica
sudo docker service ls // check the status
sudo docker service ps web1 //
sudo docker service scale web1=4 // scale service up and down
docker node inspect self
sudo docker node update --availability drain worker1Error: No such node: worker1 // shut down node
sudo docker swarm leave
Pending items: practical of all above commands and docker swarm
*****************************************************************************
DOCKER ON WINDOWS PRO :
download "Docker desktop" and install
c:\ docker ==> check if docker is installed or not
c:\ docker version ==> check the docker version
download VNC viewer from https://www.realvnc.com/en/connect/download/viewer/
No comments:
Post a Comment