Docker

Links:

• More: https://github.com/hexops/dockerfile
• Many Images: https://hub.docker.com/u/linuxserver/
• how-to-clean-text-data-at-the-command-line https://www.ezzeddinabdullah.com/posts/how-to-clean-text-data-at-the-command-line

Basics

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Network issues on Windows

Network issues on Windows with Docker for Windows:

Show IP address allocated by the docker host: docker inspect -f "{{ .NetworkSettings.IPAddress }}" <docker-name>

Required port is reserved

• Check, if your required port is reserved: netsh interface ipv4 show excludedportrange protocol=tcp
• If it your port is in one of the ranges, stop winnat: net stop winnat
• Do stuff that didn't work before
• Prohibit dynamic reservation for your required port (here for example, 50051, as stated in the original question): netsh int ipv4 add excludedportrange protocol=tcp startport=50051 numberofports=1 Restart winnat: net start winnat

Stop IIS:

• Stop IIS: iisreset /STOP

Activate Docker in WSL2

Make sure WSL is installed and ready:

dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart
dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
wsl --install
wsl --set-default-version 2
wsl --install Ubuntu
wsl --set-version Ubuntu 2

Install Docker & Docker-compose on Ubuntu

sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common libssl-dev libffi-dev git wget nano
sudo groupadd docker
sudo usermod -aG docker ${USER}
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install -y docker-ce containerd.io docker-compose
sudo update-alternatives --config iptables # select iptables-legacy

Restart WSL to make sure changes apply.

Test if docker is running with sudo service docker status; if not start docker with sudo service docker start. Now run a hello-world container to see if docker is working: sudo docker run hello-world.

Settings

Run docker on startup

wsl.exe -u root service docker status || wsl.exe -u root service docker start

Start docker service

sudo service docker start

To limit the resources of your WSL:

• Enter the user's folder. C:\Users\USER
• Create the file: .wslconfig

• Enter the following:

  txt [wsl2] memory = 2GB processors = 1

• Save and restart the LxssManager service

Maintainance

Search through all images to find and delete the ones without active references. The -a tag will keep images that are tagged but not in use. (see Docs for more)

docker image prune -a

Images available locally:

docker image ls

Remove a specific image:

docker image rm IMAGEID

Storage used by images locally:

sudo du -sh /var/lib/docker/

To also remove all stopped containers run:

docker container prune

And run docker image prune -a if you want to remove all images linked to stopped containers.