Pin versions in apt get install. Instead of `apt-get install <package>` use `apt-get install <package>=<version>`

Pin versions in pip. Instead of `pip install <package>` use `pip install <package>==<version>` or `pip install --requirement <requirements file>`

Use WORKDIR to switch to a directory

Set the SHELL option -o pipefail before RUN with a pipe in it. If you are using /bin/sh in an alpine image or if your shell is symlinked to busybox then consider explicitly setting your SHELL to /bin/ash, or disable this check

Use WORKDIR to switch to a directory

Set the SHELL option -o pipefail before RUN with a pipe in it. If you are using /bin/sh in an alpine image or if your shell is symlinked to busybox then consider explicitly setting your SHELL to /bin/ash, or disable this check

UndefinedVar: Usage of undefined variable '$CKAN_SYSADMIN_EMAIL' More info: https://docs.docker.com/go/dockerfile/rule/undefined-var/

UndefinedVar: Usage of undefined variable '$CSW_CONTACT_NAME' More info: https://docs.docker.com/go/dockerfile/rule/undefined-var/