Install docker from the link https://docs.docker.com/engine/install/ubuntu/
Instead you can also install from following commands
sudo apt-get update
sudo apt-get install ca-certificates curl gnupg lsb-release
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
Run following command to add current user to docker group.
sudo usermod -a -G docker $(id -un)
Reboot computer for above command to take effect.
The above command removes the necessity for sudo when running docker command.
Clone this repo and enter the repo in the terminal
Copy your host gitconfig, or create a stripped down version
cp ~/.gitconfig gitconfig
Build docker image
docker build --build-arg userid=$(id -u) --build-arg groupid=$(id -g) --build-arg username=$(id -un) -t openwrt-build-env-base .
Create docker container from the image generated from above command
docker run --name openwrt-build -v <host computer repos directory path>:/home/$(id -un)/repos openwrt-build-env-base &
This docker file creates a user in the image with the same details of user of host computer when built. Set password for the created user in the root shell. To get root shell of the docker container, please use following command
docker exec -it openwrt-build bash
You can get the user shell of running container with the following to start your build
docker exec -it -u $(id -u):$(id -g) openwrt-build
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