askaralikhan.blogspot.com

Nothing but Linux: Oracle Linux Image for Docker

http://askaralikhan.blogspot.com/2014/12/oracle-linux-image-for-docker.html

Something back to community. Sunday, December 7, 2014. Oracle Linux Image for Docker. Everyone is talking about Docker these days, Oracle also took the notice and recently make Oracle Linux 6 and 7 images available for Docker. Note: Oracle Linux is rebuild of RHEL same as Centos or Scientific Linux. ;). Lets try to containerize the oracle linux OL7. 1 Assuming Docker is already installed on your favorite Linux distro. 2 Download the Oracle Linux image. Unxz oraclelinux-7.0.tar.xz. 5 check local image repo.

Nothing but Linux: Attaching to docker container

http://askaralikhan.blogspot.com/2014/09/attaching-to-docker-container.html

Something back to community. Friday, September 26, 2014. Attaching to docker container. You launched your Docker container with. Sudo docker –run –I –t –name grey cat centos /bin/bash. This creates the container name “grey cat” from base image “centos” and ran the bash shell inside it, the container’s is presented. Once you are done with the container you type “exit” which stop the container and get back to you host shell. So what happened to container? To start the stopped container.

Nothing but Linux: Deleting a Docker container

http://askaralikhan.blogspot.com/2014/09/deleting-docker-container.html

Something back to community. Saturday, September 27, 2014. Deleting a Docker container. If you are finished with a container, you can delete it using the docker rm command. You must stop it first using the docker stop command or docker kill command. Deleting a running container. Docker rm –f ba1d58bfb1dc. There is currently no command to delete all containers but you can combine docker ps –a and docker ps –q to delete all containers. Docker rm $(docker ps -a -q). Ps –a list all the containers.

Nothing but Linux: Docker and BusyBox

http://askaralikhan.blogspot.com/2014/12/docker-and-busybox.html

Something back to community. Sunday, December 7, 2014. Ever heard of Busybox. Or you are like me living in a cave. YAS today heard of it. BusyBox: The Swiss Army Knife of Embedded Linux. Its so tiny that the Docker image is only few mb in my case 2.433 MB. Docker run - rm -it busybox. This will drop you into sh shell. You can use Busybox to test your static binaries For example. 1 Create a Dockerfile for a binary. 2 Now build the image. Docker build -t my-binary:v1 . Docker run - rm -it my-binary:v1.

Nothing but Linux: July 2013

http://askaralikhan.blogspot.com/2013_07_01_archive.html

Something back to community. Tuesday, July 23, 2013. Copying public ssh key to the remote server. After we create ssh keys pair with 'ssh-keygen' command, the next step is to copy the public key to remote server and append in /.ssh/authorized keys file. Scp /ssh/id dsa.pub username@my.server.org:. Login to remote server. Mkdir .ssh - mode 700. Cat /id dsa.pub /.ssh/authorized keys. Chmod 600 .ssh/authorized keys. Fast and simple Method using ssh-copy-id. Sunday, July 21, 2013. Many diagnostic and debuggi...