Ansible: generalization of roles, CI, joined effort

[ingvagabund]

Decomposition of roles to elevate modularity

As pointed by @stephenrlouie, it makes sense to generalize the roles and make them independent of playbooks [2]. To deploy kubernetes on one node cluster, there is no need for flannel. Sometimes, only kubernetes addons are needed.

Related issues:

• share the roles in Ansible galaxy [1]: [ansible] Upload roles to Ansible galaxy #1291
• deploy kubernetes with provided certificates (skip certificate generator): [ansible] Use already-present certificates #1290
• create top level directories: Created a top level playbooks dir and scripts dir #967

Joined effort

Some roles are already shared via Ansible galaxy:

• etcd role: https://github.com/retr0h/ansible-etcd
• docker role: https://github.com/angstwad/docker.ubuntu, https://github.com/jamesdbloom/ansible-install-docker, https://github.com/marklee77/ansible-role-docker
• flannel role: https://github.com/openshift/openshift-ansible/tree/master/roles/flannel, https://github.com/goblain/ansible-role-flannel, https://github.com/vmware/ansible-flannel
• kubernetes role: https://github.com/hidekuro/ansible-role-kubernetes

Others can be found for sure. It makes sense to collaborate with individual folks and elevate the effort.

CI

Run various tests on various parts of playbooks to extend the application to various linux distributions. Testing for regressions is important as well. Naming few:

• smoke tests (testing individual roles on various OSes)
• unit-tests (testing created facts on various versions of ansible on various OSes)
• some sort of dashboard with daily digests of run playbooks on various OSes

Both smoke tests and unit-tests can be run over each PR. Daily digest can be taken from periodic jobs run from master HEAD.

Other effort:

Now, sooner or later it is desired to move the entire ansible code under kube-deploy repository:

• move ansible to github.com/kubernetes/turn-up #635
• Move code that should be maintained to dedicated repos #762

Make the deployment faster:

• [conrib/ansible]: Dose it support async roles? #1599

[1] http://docs.ansible.com/ansible/galaxy.html
[2] https://github.com/openstack/openstack-ansible

[stephenrlouie]

@danehans

[jasonbrooks]

@ingvagabund Any activity on this front? I've been wondering about whether we should look at joining efforts with https://github.com/kubernetes-incubator/kubespray or perhaps with https://github.com/openshift/openshift-ansible

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

Prevent issues from auto-closing with an /lifecycle frozen comment.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or @fejta.
/lifecycle stale

[fejta-bot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle rotten
/remove-lifecycle stale

[fejta-bot]

Rotten issues close after 30d of inactivity.
Reopen the issue with /reopen.
Mark the issue as fresh with /remove-lifecycle rotten.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/close