A Kubernetes Operator for Zuul
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James E. Blair eff9f360f7 Use kopf operator framework
This switches from the ansible/dhall operator framework to kopf,
an operator framework written in pure Python.  This allows us to:

* Build the operator application as a Python app.
* Build the operator image using the opendev python builder images.
* Run the operator as a Python CLI program "zuul-operator".
* Write procedural Python code to handle operator tasks (such as
  creating new nodepool launchers when providers are added).
* Use Jinja for templating config files and k8s resource files
  (direct pythonic manipulation of resources is an option too).

The new CR nearly matches the existing one, with some minor differences.

Some missing features and documentation are added in the commits
immediately following; they should be reviewed and merged as a unit.

Also, fx waiting for scheduler to settle in functional test since
we changed this log line in Zuul.

Change-Id: Ib37b67e3444b7cd44692d48eee77775ee9049e9f

Change-Id: I70ec31ecd8fe264118215944022b2e7b513dced9
2021-07-20 13:16:07 -07:00
build Use kopf operator framework 2021-07-20 13:16:07 -07:00
deploy Use kopf operator framework 2021-07-20 13:16:07 -07:00
playbooks/zuul-operator-functional Use kopf operator framework 2021-07-20 13:16:07 -07:00
zuul_operator Use kopf operator framework 2021-07-20 13:16:07 -07:00
.git-blame-ignore-revs Add reformat changes to the blame ignore list 2020-07-08 13:20:57 -04:00
.gitignore Use kopf operator framework 2021-07-20 13:16:07 -07:00
.gitreview Add .gitreview and .zuul.yaml 2019-06-27 07:41:10 -07:00
.zuul.yaml Use kopf operator framework 2021-07-20 13:16:07 -07:00
CONTRIBUTE.md Add initial withCertManager input toggle 2020-04-15 00:04:21 +00:00
LICENSE Initial commit 2019-04-02 10:01:37 +00:00
Makefile Replace existing operator tasks with the new dhall function 2020-02-04 00:51:30 +00:00
README.md Remove command args override and update operator-framework to v1.4.2 2021-04-06 17:23:56 +00:00
requirements.txt Use kopf operator framework 2021-07-20 13:16:07 -07:00
setup.cfg Use kopf operator framework 2021-07-20 13:16:07 -07:00
setup.py Use kopf operator framework 2021-07-20 13:16:07 -07:00

Zuul Operator

Build the image

$ make image

Install the operator

$ make install
kubectl apply -f deploy/crds/zuul-ci_v1alpha1_zuul_crd.yaml -f deploy/rbac.yaml -f deploy/operator.yaml

Look for operator pod and check it's output

$ kubectl get pods
NAME                            READY     STATUS    RESTARTS   AGE
zuul-operator-c64756f66-rbdmg   2/2       Running   0          3s
$ kubectl logs zuul-operator-c64756f66-rbdmg
[...]
{"level":"info","ts":1554197305.5853095,"logger":"cmd","msg":"Go Version: go1.10.3"}
{"level":"info","ts":1554197305.5854425,"logger":"cmd","msg":"Go OS/Arch: linux/amd64"}
{"level":"info","ts":1554197305.5854564,"logger":"cmd","msg":"Version of operator-sdk: v0.6.0"}
{"level":"info","ts":1554197305.5855,"logger":"cmd","msg":"Watching namespace.","Namespace":"default"}
[...]

Usage

$ kubectl apply -f - <<EOF
apiVersion: operator.zuul-ci.org/v1alpha1
kind: Zuul
metadata:
  name: example-zuul
spec:

EOF
zuul.zuul-ci.org/example-zuul created