Kubernetes Demo deployments and templates
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dependencies
deployments Fix deployments readme Jul 9, 2016
services Added first working version of Cassandra PetSet using Plan-B Cassandr… Jul 23, 2016
templates Fix scheduler default port Jul 14, 2016
.gitignore Added download section and added eventlog db inject Jul 9, 2016
README.rst Mention port forward using kubectl Nov 29, 2016
config.yaml Bump controller to new version Nov 29, 2016
create-keystore.py Added first working version of Cassandra PetSet using Plan-B Cassandr… Jul 23, 2016
zmon-k8s.py Fix token expires key Jul 22, 2016

README.rst

ZMON on Kubernetes

For demo purposes provide k8s templates.

Config used is in:

config.yaml

Prepare K8S definitions:

./zmon-k8s.py

Next step is to run the printed commands :)

Minikube

Check that you give your VM enough resources:

minikube start --memory=4000 --cpus=3

Note

PostgreSQL and Cassandra do not use persistent volumes!

Deployment

Create Namespace

kubectl create namespace zmon

If you want use the following command to set the default namespace:

kubectl config set-context minikube --namespace=zmon

Dependencies

kubectl create -f dependencies/cassandra/deployment.yaml
kubectl create -f dependencies/cassandra/service.yaml

kubectl create -f dependencies/kairosdb/deployment.yaml
kubectl create -f dependencies/kairosdb/service.yaml

kubectl create -f dependencies/redis/deployment.yaml
kubectl create -f dependencies/redis/service.yaml

kubectl create -f dependencies/postgresql/deployment.yaml
kubectl create -f dependencies/postgresql/service.yaml

ZMON source download

wget https://github.com/zalando-zmon/zmon-controller/archive/master.zip -O zmon-controller.zip
wget https://github.com/zalando-zmon/zmon-eventlog-service/archive/master.zip -O zmon-eventlog-service.zip

mkdir -p zmon-controller-source
mkdir -p zmon-eventlog-service-source

unzip zmon-controller.zip -d zmon-controller-source
unzip zmon-eventlog-service.zip -d zmon-eventlog-service-source

ZMON Database setup

export POSTGRES_NODE_IP=$(minikube ip)
export POSTGRES_NODE_PORT=31088
export PGPASSWORD={{admin_password}}

psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -c "CREATE DATABASE local_zmon_db;" postgres
psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -c 'CREATE EXTENSION IF NOT EXISTS hstore;' local_zmon_db
psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -c "CREATE ROLE zmon WITH LOGIN PASSWORD '{{postgresql_password}}';" postgres
psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -c "ALTER ROLE zmon WITH PASSWORD '{{postgresql_password}}';" postgres

find "zmon-controller-source/zmon-controller-master/database/zmon" -name '*.sql' \
                                   | sort \
                                   | xargs cat \
                                   | psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -d local_zmon_db

psql -h $POSTGRES_NODE_IP -p $POSTGRES_NODE_PORT -U postgres -f zmon-eventlog-service-source/zmon-eventlog-service-master/database/eventlog/00_create_schema.sql local_zmon_db

ZMON components

kubectl create -f deployments/zmon-eventlog-service.yaml
kubectl create -f services/zmon-eventlog-service-service.yaml

kubectl create -f deployments/zmon-controller.yaml
kubectl create -f services/zmon-controller-service.yaml

kubectl create -f deployments/zmon-scheduler.yaml
kubectl create -f services/zmon-scheduler-service.yaml

kubectl create -f deployments/zmon-worker.yaml

Connecting

Depending on how you run minikube:

kubectl get pods --namespace zmon
kubectl port-forward <controller pod id> 8443:443  --namespace zmon

GCE LB

Add firewall rule to allow traffic and health check from IP range: 130.211.0.0/22