To install a custom package or modify an existing docker image we need to
- run a docker a container from the image we wish to modify
- modify the docker container
- commit the changes to the container as a docker image
- test changes made to image
To install a custom package or modify an existing docker image we need to
#!/usr/bin/env bash | |
sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test | |
sudo apt update | |
sudo update-alternatives --remove-all gcc | |
sudo update-alternatives --remove-all g++ | |
sudo apt-get install -y gcc-4.8 g++-4.8 gcc-4.9 g++-4.9 gcc-5 g++-5 gcc-6 g++-6 gcc-7 g++-7 | |
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 10 |