We’ve recently published the cflinuxfs3 (Ubuntu 18.04 LTS, Bionic-based) stack and cflinuxfs3-compatible buildpacks to Pivotal Web Services. Our plan is to make cflinuxfs3 the default stack on December 1st, 2018. Once cflinuxfs3 is the default stack, new apps that are pushed will be staged and launched with cflinuxfs3.

Canonical will cease support for Ubuntu 14.04 LTS (Trusty) in April 2019. Therefore, at the end of March 2019, cflinuxfs2 will be removed from PWS and all apps that haven’t been migrated will be terminated.

The stack property is “sticky,” so existing apps will remain associated with cflinuxfs2 unless they are manually migrated to cflinuxfs3 (or deleted and re-created). To migrate an app from cflinuxfs2 to cflinuxfs3, you can re-push the app with the cflinuxfs3 stack:

$ cf push -s cflinuxfs3 my-app

Note: If you aren’t using a buildpack provided by PWS (i.e., a buildpack URI), please ensure that your buildpack supports cflinuxfs3 before upgrading.

Thanks,

PWS Operations Team