Containers How To - Revision history

Eyales at 06:20, 7 July 2019

2019-07-07T06:20:22Z

← Older revision		Revision as of 06:20, 7 July 2019
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	* Logoff docker hub:		* Logoff docker hub:
	: '''docker logout'''		: '''docker logout'''

			== References ==
			* Intro Guide to Dockerfile Best Practices
			: https://blog.docker.com/2019/07/intro-guide-to-dockerfile-best-practices/

Eyales at 05:09, 12 June 2019

2019-06-12T05:09:08Z

← Older revision		Revision as of 05:09, 12 June 2019
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	* '''ENV variable_name=variable_data'''		* '''ENV variable_name=variable_data'''
	: Purpose: Creates an environment variable inside a docker container		: Purpose: Creates an environment variable inside a docker container
			Reference:
			: https://linuxize.com/post/how-to-build-docker-images-with-dockerfile/

	== Common Docker commands for using Docker hub registry ==		== Common Docker commands for using Docker hub registry ==

Eyales at 13:57, 10 June 2019

2019-06-10T13:57:50Z

← Older revision		Revision as of 13:57, 10 June 2019
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	* '''ENV variable_name=variable_data'''		* '''ENV variable_name=variable_data'''
	: Purpose: Creates an environment variable inside a docker container		: Purpose: Creates an environment variable inside a docker container

			== Common Docker commands for using Docker hub registry ==
			* Login to the docker hub using registered account:
			: '''docker login -u <username> -p <password>'''
			* Tag a docker image created locally:
			: '''docker tag <image-id> <username>/<repo-name>:<tag>'''
			: Example: '''docker tag 3fd9065eaf02 shrikantlavhate/kerneltalks'''
			* Push a docker image from the local machine into the docker hub:
			: '''docker push <username>/<repo-name>:<tag>'''
			: Example: '''docker push shrikantlavhate/kerneltalks'''
			* Pull a docker image from docker hub:
			: '''docker pull <username>/<repo-name>:<tag>'''
			: Example: '''docker pull alpine:latest'''
			* Logoff docker hub:
			: '''docker logout'''

Eyales at 13:56, 10 June 2019

2019-06-10T13:56:19Z

← Older revision		Revision as of 13:56, 10 June 2019
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	: '''docker run --name mynginx -d -p 8080:80 mynginx'''		: '''docker run --name mynginx -d -p 8080:80 mynginx'''
	* Open a browser and check that the custom image web server is running (http://localhost:8080)		* Open a browser and check that the custom image web server is running (http://localhost:8080)

			== Docker file instructions ==
			* '''FROM <base_image_name>:<image_version>'''
			: Purpose: Set the base image to create the container from
			: Example: '''FROM Ubuntu:15.04'''
			* '''RUN <command>'''
			: Purpose: Execute commands inside the container
			: Example: '''RUN apt-get update -y'''
			* '''CMD [“command”,”parameter1”,”parameter2”]'''
			: Purpose: Define a default command to run when the container starts
			: Example: '''CMD [“echo”,”Hello World!”]'''
			* '''EXPOSE <port>'''
			: Purpose: Informs docker that the container listens on specific port number at runtime
			: Example: '''EXPOSE 80/tcp'''
			* '''COPY <src> <dest>'''
			: Purpose: Copy files/folders from the local machine into the Docker container
			: Example: '''COPY html /www/html #Copy html folder into /www/html inside the container'''
			* '''ADD <src_file> <dest>'''
			: Purpose: Copy archive file from the local machine into the docker container and extract it, or copy the content of a folder inside a URL into the docker container
			: Example 1: '''ADD myfile.tar.gz /myfolder'''
			: Example 2: '''ADD http://www.example.com/folder /folder'''
			* '''ENV variable_name=variable_data'''
			: Purpose: Creates an environment variable inside a docker container

Eyales at 13:54, 10 June 2019

2019-06-10T13:54:00Z

← Older revision		Revision as of 13:54, 10 June 2019
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	* Show exposed ports of a container:		* Show exposed ports of a container:
	: '''docker port c7337'''		: '''docker port c7337'''

			== Building a Docker image ==
			* Create a sample '''Dockerfile''' on the local machine, with the following content:
			: '''FROM nginx'''
			: '''COPY html /usr/share/nginx/html'''
			* Run the command below (from the local folder containing Dockerfile and html folder) to build a custom docker image:
			: '''docker build -t mynginx .'''
			* Build a Docker image from a Dockerfile:
			: '''docker build -f path/to/Dockerfile -t mynginx .'''
			* Force rebuild of Docker image (from the current directory):
			: '''docker build --no-cache .'''
			* Convert a container to image:
			: '''docker commit c7337 myimage'''
			* Run the newly created custom docker image:
			: '''docker run --name mynginx -d -p 8080:80 mynginx'''
			* Open a browser and check that the custom image web server is running (http://localhost:8080)

Eyales at 13:52, 10 June 2019

2019-06-10T13:52:25Z

← Older revision		Revision as of 13:52, 10 June 2019
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	: '''docker image ls'''		: '''docker image ls'''
	* Pull an image from Docker hub:		* Pull an image from Docker hub:
	* '''docker image pull alpine''''		* '''docker image pull alpine'''
	* Remove Docker image (by image name) from the local machine:		* Remove Docker image (by image name) from the local machine:
	: '''docker image rm nginx'''		: '''docker image rm nginx'''

Eyales at 13:51, 10 June 2019

2019-06-10T13:51:47Z

← Older revision		Revision as of 13:51, 10 June 2019
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	* Check the Docker version:		* Check the Docker version:
	: '''docker --version'''		: '''docker --version'''
	• Pull and run “hello-world” image from Docker hub:		* Pull and run '''“hello-world”''' image from Docker hub:
	docker run hello-world		: '''docker run hello-world'''
	• List images:		* List images:
	docker images		: '''docker images'''
	• List all images:		* List all images:
	docker image ls		: '''docker image ls'''
	• Pull an image from Docker hub:		* Pull an image from Docker hub:
	docker image pull alpine		* '''docker image pull alpine''''
	• Remove Docker image (by image name) from the local machine:		* Remove Docker image (by image name) from the local machine:
	docker image rm nginx		: '''docker image rm nginx'''
	• List all containers:		* List all containers:
	docker container ls --all		: '''docker container ls --all'''
	• List active containers:		* List active containers:
	docker ps		: '''docker ps'''
	• List all container processes (same as docker container ls command)		* List all container processes (same as docker container ls command)
	docker ps --all		: '''docker ps --all'''
	• Pull nginx web server from Docker hub and run it on port 80 on the local machine:		* Pull nginx web server from Docker hub and run it on port 80 on the local machine:
	docker run --detach --publish 80:80 --name webserver nginx		: '''docker run --detach --publish 80:80 --name webserver nginx'''
	Note: Open browser and enter the URL http://localhost to make sure the web server is working		: Note: Open browser and enter the URL http://localhost to make sure the web server is working
	• Start a container in the background:		* Start a container in the background:
	docker run -d jenkins		: '''docker run -d jenkins'''
	• Start an interactive shell command from a container (by image name):		* Start an interactive shell command from a container (by image name):
	docker run -it nginx bash		: '''docker run -it nginx bash'''
	• Mount a folder from the local machine into a docker container, and map port 8080 locally to port 80 on the container (container name nginx):		* Mount a folder from the local machine into a docker container, and map port 8080 locally to port 80 on the container (container name nginx):
	docker run -v /full/path/to/html/directory:/usr/share/nginx/html:ro -p 8080:80 -d nginx		: '''docker run -v /full/path/to/html/directory:/usr/share/nginx/html:ro -p 8080:80 -d nginx'''
	• Stop running container (by container name) from the local machine:		* Stop running container (by container name) from the local machine:
	docker container stop webserver		: '''docker container stop webserver'''
	• Start (a stopped) docker container (by container name) on the local machine:		* Start (a stopped) docker container (by container name) on the local machine:
	docker container start webserver		: '''docker container start webserver'''
	• Kill all running containers:		* Kill all running containers:
	docker kill $(docker ps -q)		: '''docker kill $(docker ps -q)'''
	• Remove all stopped containers:		* Remove all stopped containers:
	docker rm $(docker ps -a -q)		: '''docker rm $(docker ps -a -q)'''
	• Remove container (by container name) from the local machine:		* Remove container (by container name) from the local machine:
	docker container rm webserver		: '''docker container rm webserver'''
	• View logs from a running container (by container name):		* View logs from a running container (by container name):
	docker container logs webserver		: '''docker container logs webserver'''
	• Show live logs of running container:		* Show live logs of running container:
	docker logs -f c7337		: '''docker logs -f c7337'''
	• View top processes inside a container (by container name):		* View top processes inside a container (by container name):
	docker container top webserver		: '''docker container top webserver'''
	• Show exposed ports of a container:		* Show exposed ports of a container:
	docker port c7337		: '''docker port c7337'''

Eyales at 13:48, 10 June 2019

2019-06-10T13:48:55Z

← Older revision		Revision as of 13:48, 10 June 2019
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	* Download the latest Docker build from:		* Download the latest Docker build from:
	: https://download.docker.com/win/edge/Docker%20Desktop%20Installer.exe		: https://download.docker.com/win/edge/Docker%20Desktop%20Installer.exe

			== How to install Docker (Ubuntu) ==
			* Login to the machine using privileged account
			* Follow the instructions below:
			: https://docs.docker.com/install/linux/docker-ce/ubuntu/

			== How to install Docker (RHEL / CentOS) ==
			* Login to the machine using privileged account
			* Follow the instructions below:
			: https://docs.docker.com/install/linux/docker-ce/centos/

			== Common Docker commands ==
			* Check the Docker version:
			: '''docker --version'''
			• Pull and run “hello-world” image from Docker hub:
			docker run hello-world
			• List images:
			docker images
			• List all images:
			docker image ls
			• Pull an image from Docker hub:
			docker image pull alpine
			• Remove Docker image (by image name) from the local machine:
			docker image rm nginx
			• List all containers:
			docker container ls --all
			• List active containers:
			docker ps
			• List all container processes (same as docker container ls command)
			docker ps --all
			• Pull nginx web server from Docker hub and run it on port 80 on the local machine:
			docker run --detach --publish 80:80 --name webserver nginx
			Note: Open browser and enter the URL http://localhost to make sure the web server is working
			• Start a container in the background:
			docker run -d jenkins
			• Start an interactive shell command from a container (by image name):
			docker run -it nginx bash
			• Mount a folder from the local machine into a docker container, and map port 8080 locally to port 80 on the container (container name nginx):
			docker run -v /full/path/to/html/directory:/usr/share/nginx/html:ro -p 8080:80 -d nginx
			• Stop running container (by container name) from the local machine:
			docker container stop webserver
			• Start (a stopped) docker container (by container name) on the local machine:
			docker container start webserver
			• Kill all running containers:
			docker kill $(docker ps -q)
			• Remove all stopped containers:
			docker rm $(docker ps -a -q)
			• Remove container (by container name) from the local machine:
			docker container rm webserver
			• View logs from a running container (by container name):
			docker container logs webserver
			• Show live logs of running container:
			docker logs -f c7337
			• View top processes inside a container (by container name):
			docker container top webserver
			• Show exposed ports of a container:
			docker port c7337

Eyales: Created page with "== How to install Docker (Windows Platform) == * Login to the machine using privileged account * Download the latest Docker build from: : https://download.docker.com/win/edge/..."

2019-06-10T13:47:37Z

Created page with "== How to install Docker (Windows Platform) == * Login to the machine using privileged account * Download the latest Docker build from: : https://download.docker.com/win/edge/..."

New page

== How to install Docker (Windows Platform) ==
* Login to the machine using privileged account
* Download the latest Docker build from:
: https://download.docker.com/win/edge/Docker%20Desktop%20Installer.exe