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working kubecon app deployment with port forwarding

This commit is contained in:
Anton Smith 2021-11-18 20:40:50 +01:00
parent dc0a7b8626
commit e52526b97f
1 changed files with 39 additions and 23 deletions
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62
maas-setup.sh
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@ -140,6 +140,44 @@ juju add-k8s my-k8s
juju bootstrap my-k8s
juju controllers
### Deploy a test application on K8s cluster
# Create a model in juju, which creates a namespace in K8s
juju add-model hello-kubecon
# Deploy the charm "hello-kubecon", and set a hostname for the ingress
juju deploy hello-kubecon --config juju-external-hostname=kubecon.test
# Deploy the ingress integrator - this is a helper to setup the ingress
juju deploy nginx-ingress-integrator ingress
# trust the ingress
juju trust ingress --scope=cluster
# Relate our app to the ingress - this causes the ingress to be setup
juju relate hello-kubecon ingress
# Explore the setup
kubectl describe ingress -n hello-kubecon
kubectl get svc -n hello-kubecon
kubectl describe svc hello-kubecon-service -n hello-kubecon
kubectl get pods -n hello-kubecon
# Lastly, in order to be able to reach the service from outside our host machine,
# we can use port forwarding. Replace 10.10.10.5 with the IP seen on the ingress.
sudo iptables -t nat -A PREROUTING -p tcp -i enp6s0 \
--dport 8000 -j DNAT --to-destination 10.10.10.5:80
#if you want to persist this, run sudo dpkg-reconfigure iptables-persistent
# Now you should be able to open a browser and navigate to http://your-machines-real-ip:8000
# To clean up everything:
juju destroy-controller -y --destroy-all-models --destroy-storage maas-cloud-default
# And the machines created in MAAS can be deleted easily in the MAAS GUI.
### END
### Deploying applications
# juju add-model some-model my-k8s
# juju deploy someapp(s)
@ -164,27 +202,5 @@ juju controllers
# https://ubuntu.com/kubernetes/docs/troubleshooting - troubleshooting
### https://juju.is/blog/deploying-mattermost-and-kubeflow-on-kubernetes-with-juju-2-9
juju add-model hello-kubecon
# Deploy the ingress integrator
juju deploy nginx-ingress-integrator ingress
# trust
juju trust ingress --scope=cluster
# Deploy the charm
juju deploy hello-kubecon --config juju-external-hostname=kubecon.test
sudo iptables -t nat -A PREROUTING -p tcp -i enp6s0 --dport 8000 -j DNAT --to-destination 10.10.10.5:80
#juju config ingress service-name=hello-kubecon service-port=80 service-hostname=foo.internal
#juju config ingress service-name=hello-kubecon service-port=80 service-hostname=hello-kubecon.test
# Relate our app to the ingress
juju relate hello-kubecon ingress
https://juju.is/blog/deploying-mattermost-and-kubeflow-on-kubernetes-with-juju-2-9
kubectl port-forward deployment/mattermost -n mattermost 8080:8065
kubectl patch svc mattermost -n mattermost -p '{"spec":{"externalIPs":["10.10.10.3"]}}'
kubectl get svc -n mattermost
#https://juju.is/blog/deploying-mattermost-and-kubeflow-on-kubernetes-with-juju-2-9