if CGO is enabled, make sure to use C.getenv instead of os.Getenv to
read environment variables. It is required since rootless libpod
joins the user namespace through Cgo.
The variables set via C.setenv are not visible through os.Getenv, as
the latter uses sync.Once to read the variables once.
Requires: https://github.com/containers/libpod/pull/4911
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Add configurations from libpod.conf to containers.conf.Use merge code from libpod to read and merge configurations from file.
Add unshare_linux for build linux: HomeDir should buildah not only for linux. so add unshare_linux for linux and unshare.go for other
convert bool to optinalbool:Use OptionalBool for on-disk configurations so we can distinguish field is undefined vs. user set to false.
Signed-off-by: Qi Wang <qiwan@redhat.com>
Giuseppe Scrivano
Qi Wang
Valentin Rothberg