Short: use the save CLI command. https://docs.docker.com/engine/reference/commandline/save/ You can pull the image on a computer that have access to the internet. sudo docker pull ubuntu Then you can save this image to a file sudo docker save -o ubuntu_image.docker ubuntu Transfer the file on the offline computer (USB/CD/whatever) and load the image from the file: … Read more
You can install ifconfig with apt-get install net-tools. (Specifically, by adding RUN apt-get install -y net-tools to your Dockerfile.) Based on my test, ifconfig is included in ubuntu:14.04.
An amazing recipe is given in the nginx Dockerfile: # forward request and error logs to docker log collector RUN ln -sf /dev/stdout /var/log/nginx/access.log \ && ln -sf /dev/stderr /var/log/nginx/error.log Simply, the app can continue writing to it as a file, but as a result the lines will go to stdout & stderr!
I believe the difference might be because the second command does shell processing while the first does not. Per the official documentation, there are the exec and shell forms. Your first command is an exec form. The exec form does not expand environment variables while the shell form does. It is possible that by using … Read more
You don’t need to block the IP address at all. Append this code in wp-config.php of your website in case you have access to it:: define(‘WP_AUTO_UPDATE_CORE’, false); Alternative Method This will hide update messages for all kind of users:: Add this function to your functions.php function hide_update_notice_to_all_but_admin_users() { if (current_user_can(‘read’)) { remove_action( ‘admin_notices’, ‘update_nag’, 3 … Read more
No. There is definitely no way to rerun a kubernetes job. You need to delete it first.
Docker provides methods for managing OS-level containers and is built on top of Linux’s native features for OS-level containerization. All containers running on a system share the same kernel; Mac OS X does not use the Linux kernel, but rather a mach kernel, so it cannot be run inside a Docker container at this time. … Read more
Apparently, the current method to auto-start Docker containers (from Docker 1.2) is to use restart policies. This will control how Docker should handle starting of the container upon startup and re-starting of the container when it exits. I’ve used the ‘always’ option so far, and can confirm that it makes Docker auto-start the container at … Read more
Since all Linux distributions run the same (yup, it’s a bit simplified) Linux kernel and differ only in userland software, it’s pretty easy to simulate a different distribution environment – by just installing that userland software and pretending it’s another distribution. Being specific, installing CentOS container inside Ubuntu OS will mean that you will get … Read more
You can use Docker Desktop for Windows as the engine and Docker for Linux as the client in WSL on Ubuntu / Debian on Windows. Connect them via TCP. Install Docker Desktop for Windows: https://hub.docker.com/editions/community/docker-ce-desktop-windows If you want to use Windows Containers instead of Linux Containers both type containers can be managed by the Linux … Read more