diff options
| author | Jan Gutter <github@jangutter.com> | 2023-10-23 20:29:06 +0100 |
|---|---|---|
| committer | Jan Gutter <github@jangutter.com> | 2023-10-24 09:37:43 +0100 |
| commit | c4b56a4b846c5c85177ae6fb46df67969cb7849a (patch) | |
| tree | 786f983b261f3316c1aa1bc27cfcc51413054b79 | |
| parent | bd2b69e6f82a62d08f40dffd53d279d1dedbc0b5 (diff) | |
| download | kolla-c4b56a4b846c5c85177ae6fb46df67969cb7849a.tar.gz kolla-c4b56a4b846c5c85177ae6fb46df67969cb7849a.zip | |
CI: speed up podman on el9
Before this commit the following warning message appeared
in the podman log:
Not using native diff for overlay, this may cause degraded
performance for building images: kernel has
CONFIG_OVERLAY_FS_REDIRECT_DIR enabled
It appears that the default mount options for the overlay
graph driver is badly optimised for Kolla builds on el9:
* Enable native overlay diff
https://mikeshade.com/posts/docker-native-overlay-diff/
https://github.com/containers/storage/commit/09480532cf49617d7c745fe1ee92487c60c49e1d
https://github.com/containers/podman/blob/main/docs/tutorials/performance.md
Things that did not appear to make a difference:
* volume mounting /var/lib/container
https://github.com/containers/buildah/issues/3666#issuecomment-1351992335
* enable transientStore
https://www.redhat.com/sysadmin/speed-containers-podman-raspberry-pi
note: currently incompatible with debian
Change-Id: I002e88b4b6162f6732e622fd97639d543c66784c
| -rw-r--r-- | tests/playbooks/pre.yml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/playbooks/pre.yml b/tests/playbooks/pre.yml index c8b2b0a58..7fbe412e3 100644 --- a/tests/playbooks/pre.yml +++ b/tests/playbooks/pre.yml @@ -227,6 +227,23 @@ name: podman become: true + # NOTE(jangutter): It appears that the default mount option + # in the shipped `/etc/containers/storage.conf` for EL9 based distros + # (Rocky, CentOS Stream, ...) has severe performance implications for + # Kolla builds. This is because enabling `metacopy=on` disables `Native + # Overlay Diff` This can be removed if the config is dropped from those + # distros, or the underlying incompatibility can somehow be addressed. + # Debian based distros do not ship `storage.conf` and seem + # to be unaffected. + - name: Remove metacopy, enable native overlay diff + ini_file: + path: /etc/containers/storage.conf + section: storage.options.overlay + option: mountopt + value: '"nodev"' + become: true + when: ansible_os_family == "RedHat" + - name: Ensure Podman service is started service: name: podman |