Docker

Docker operates with root privileges by default, eliminating the need for sudo. However, if you wish to have sudo within Docker and need to install it, you can follow these steps: bashCopy code apt-get update && \ apt-get -y install sudo After executing these commands, you can utilize sudo in conjunction with your Docker commands. …

Unable to use sudo commands within Docker, “bash: sudo: command not found” is displayed Read More »

Hey there! If you’re scratching your head over the “network must be a mapping, not an array” error in your Docker Compose file, don’t sweat it – happens to the best of us! This little snag usually crops up when there’s a tiny syntax hiccup in the networks section. The trick here is to ensure …

docker-compose.yml, network must be a mapping, not an array Read More »

I set up Docker CE on my Ubuntu 18.04 server and then installed a new Jenkins container, which worked fine for about two weeks. However, after that period, I ran into a problem. When I used the command “docker ps,” it showed an empty list, even though the Jenkins container was active and working as …

Suddenly Showing Running docker -ps returns an empty list although containers are running Read More »

Ensure that your Docker Engine version aligns with your operating system, as Docker has distinct versions tailored for Windows, macOS, and Linux. If uncertain, verify and select the appropriate version. Should you encounter issues, attempt a straightforward restart of the Docker service. On Linux, use the command: sudo systemctl restart docker Keep Docker up to …

Docker unknown server OS error solving Read More »

Many of you may find a common error Error: connect ECONNREFUSED 127.0.0.1:6379 in docker-compose while connecting Redis with Node.js. In this article, I am going to show you how to fix this issue. When working with Docker, the default host won’t suffice, and your container name becomes the host. In your case, it’s “client.” To …

Error: connect ECONNREFUSED 127.0.0.1:6379 in docker-compose while connecting Redis with Node.js Read More »

Uninstalling Docker from your Ubuntu system is a straightforward process. Follow these friendly steps to ensure a clean removal: Step 1: Stop Docker Before uninstalling Docker, make sure it’s not running. You have to stop the Docker daemon with the following command: sudo systemctl stop docker Step 2: Remove Docker Packages Now it’s time to …

Uninstall Docker from Ubuntu Read More »

Hey there! 😊 Running into a hiccup while installing Docker Desktop and getting a “docker-ce-cli” error? No worries – let’s troubleshoot together with these friendly steps: 1. Check System Requirements First things first, ensure your system meets Docker Desktop’s minimum requirements. Double-check the specifics for Windows or macOS, and make sure your operating system version …

Docker Desktop doesn’t install – docker-ce-cli not installable – Solved Read More »

I set up Docker on my Synology NAS (DS415+) and attempted to execute the handbrake-cli (via this package) through SSH. However, it seems that something is malfunctioning. After running the command sudo docker run -d supercoder/docker-handbrake-cli -i ~/_inProgress/input/movie.mkv -o ~/_inProgress/output/test.mp4, I received the following error message (I’ve abbreviated it for clarity): hb_init: starting libhb threadHandBrake …

Handbrake-CLI on Synology NAS in Docker Read More »

Welcome to our Docker tutorial! Today, we’ll address a common question: How do you include files from outside Docker’s build context using the “ADD” command in your Dockerfile? According to Docker documentation, the path specified in the “ADD” command must be within the context of the build. This means you can’t use paths like “../something/something” …

Include files outside of Docker’s build context Read More »