azimuth-caas-operator

K8s operator to create clusters using K8s CRDs

Installation of Operator

The azimuth-caas-operator can be installed using Helm:

helm repo add azimuth-caas-operator https://stackhpc.github.io/azimuth-caas-operator

# check for the latest versions
helm repo update
helm search repo azimuth-caas-operator --devel

# Use the most recent chart
helm upgrade \
  azimuth-caas-operator \
  azimuth-caas-operator/azimuth-caas-operator \
  -n azimuth-caas-operator \
  -i \
  --version ">=0.1.0"

Once the operator is up and running you will then need to create CRDs to configure the appropriate Cluster templates. For testing you can create a cluster and run ansible jobs, without actually creating any openstack infrastructure, try this:

# check crds have been created by the operator
kubectl get crds

# add the test cluster type
kubectl apply -f tools/test_cluster_type.yaml
kubectl wait --for=jsonpath='{.status.phase}'=Available clustertype quick-test
kubectl get clustertype quick-test -o yaml

To try this manually without using the Azimuth UI, you can create a test cluster of the above by running:

# create shared deploy ssh key
ssh-keygen -f id_rsa -P ""
kubectl create secret generic azimuth-sshkey --from-file=id_rsa --from-file=id_rsa.pub -n azimuth-caas-operator

# add reqired cluster specific app cred
# this secret will be deleted when the cluster is deleted
echo "foo" >clouds.yaml
kubectl create secret generic openstack --from-file=clouds.yaml

# create the cluster
kubectl apply -f tools/test_quick.yaml
kubectl wait --for=jsonpath='{.status.phase}'=Ready cluster quick-test --timeout=2m
kubectl get cluster -o yaml
kubectl get job
kubectl get pod

To delete the cluster, you can simple delete the Cluster CRD we just created:

kubectl delete -f tools/test_quick.yaml

Note the above is very similar to what is run in the functional test scripts.

Config

This is a WIP, and not yet in the helm chart.

You can set the following environment variables, if the default does not work for your setup:

CONSUL_HTTP_ADDR=zenith-consul-server.zenith:8500
ARA_API_SERVER=http://azimuth-ara.azimuth-caas-operator:8000
ANSIBLE_RUNNER_IMAGE=ghcr.io/stackhpc/azimuth-caas-operator-ee:v0.1.0

Run unit tests

We tox, and uses python3.9:

pip install tox
tox

Test opertor locally using tox

You can test it with tox too:

# test with k3s on a VM reachable from the platforms you want to deploy
curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="--disable traefik" sh -s -

# reach that k3s on your dev box, via ssh tunnel or otherwise
k3s kubectl get node

# ingress and zenith only needed when platforms need zenith
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm upgrade ingress-nginx ingress-nginx/ingress-nginx \
  --version 4.4.0 --create-namespace --namespace ingress-nginx \
  -i -f tools/nginx_values.yaml
helm repo add zenith https://stackhpc.github.io/zenith
# TODO: this is broken, need consul client enabled? or update sshd config
helm upgrade zenith zenith/zenith-server \
  --version 0.1.0-dev.0.update-consul.169 -i -f tools/zenith_values.yaml \
  --create-namespace --namespace zenith

# test you can hit zenith's internal API
kubectl port-forward -n zenith svc/zenith-zenith-server-registrar 8000:80
curl -X POST -s http://localhost:8000/admin/reserve
# check public associate endpoint
curl -X POST -s http://registrar.128-232-227-193.sslip.io

kubectl create secret generic openstack --from-file=clouds.yaml
ssh-keygen -f id_rsa -P ""
kubectl create namespace azimuth-caas-operator
kubectl create secret generic azimuth-sshkey --from-file=id_rsa \
    --from-file=id_rsa.pub -n azimuth-caas-operator

tox -e kopf &
kubctl apply -f tools/test_cluster_type.yaml
kubctl apply -f tools/test_quick.yaml

kubectl wait --for=jsonpath='{.status.phase}'=Creating cluster quick-test
kubectl wait --for=jsonpath='{.status.phase}'=Ready cluster quick-test
kubectl get jobs
kubctl delete -f tools/test_quick.yaml

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