buildah: use different directory than /tmp for temporary files

Question

My /tmp directory is too small which results in an error when I try to commit an image via buildah:

$ buildah commit $container foo:bar
...
error storing layer "42" to file: write /tmp/buildah317710758/layer: no space left on device
ERRO[0008] exit status 1

How can I tell buildah to use a different directory for temporary files? I tried with the following environment variables

TMP=/mytmp
TMPDIR=/mytmp
TEMP=/mytmp

without luck.

Answer 1

Just define TMPDIR like the example below:

$ export TMPDIR="${HOME}/tmp/buildah"
$ mkdir -p "${TMPDIR}"