I’m now trying to run a simple container with shell (/bin/bash) on a Kubernetes cluster. I thought that there was a way to keep a container running on a Docker container by using pseudo-tty and detach option (-td option on docker run command). For example, $ sudo docker run -td ubuntu:latest Is there an option … Read more
To start an interactive shell for the Ubuntu image we can run: ole@T:~$ docker run -it –rm ubuntu root@1a6721e1fb64:/# ls bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var But when this is run for the Alpine Docker image, the following results: ole@T:~$ docker run … Read more
I want to remove the container at Docker, but an error occurs when you want to delete My next step before removing the container, see the list of existing container sts@Yudi:~/docker$ sudo docker ps -as CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES SIZE 78479ffeba5c ubuntu “/bin/bash” 42 hours ago Exited (0) 42 hours ago … Read more
Docker gives you a way of listing running containers or all containers including stopped ones. This can be done by: $ docker ps # To list running containers Or by $ docker ps -a # To list running and stopped containers Do we have a way of only listing containers that have been stopped? 3 … Read more
Take the following two lines of code: for (int i = 0; i < some_vector.size(); i++) { //do stuff } And this: for (some_iterator = some_vector.begin(); some_iterator != some_vector.end(); some_iterator++) { //do stuff } I’m told that the second way is preferred. Why exactly is this? 27 Answers 27
Question 1 – I’m reading the documentation and I’m slightly confused with the wording. It says: ClusterIP: Exposes the service on a cluster-internal IP. Choosing this value makes the service only reachable from within the cluster. This is the default ServiceType NodePort: Exposes the service on each Node’s IP at a static port (the NodePort). … Read more
I am trying to run a cronjob inside a docker container that invokes a shell script. Yesterday I have been searching all over the web and stack overflow, but I could not really find a solution that works. How can I do this? 20 Answers 20