MEG: Mock Event Generator¶

MEG is a tool used to insert mock events inside graceDB.

Deployment of the mock-event-generator¶

To have a local k8s deployment of the mock-event-generator using the locally provided Helm chart:

helm upgrade --install -n default \
    --set storageClassName=local-path \
    --set gracedb.hostAlias.hostname="<hostname>" \
    --set gracedb.hostAlias.ip="<ipaddress>" \
    meg meg

Parameter Name	description
`storageClassName`	name of the storage class, in minikube can be omitted while (may be omitted) while in k3s the only availabe storage class is the "local-path" ones
`gracedb.hostAlias.ip`	IP address of graceDB server
`gracedb.hostAlias.hostname`	logical name for gracedb server, this name must be resolved by nameserver

Example of tested configurations

minikubek3s on Linuxk3s on LDAS

To have a local k8s deployment of the mock-event-generator using the locally provided Helm chart:

helm install meg meg

The first command will prompt you your ligo credential that are needed to establish a ssh connection between the container and the repository containers.ligo.org.

helm  --kubeconfig /etc/rancher/k3s/k3s.yaml upgrade --install -n default \
    --set storageClassName=local-path \
    meg meg

helm upgrade --install -n default \
    --set storageClassName=local-path \
    --set gracedb.hostAlias.hostname="gracedb-dev.ldas.cit" \
    --set gracedb.hostAlias.ip="10.14.150.23" \
    meg meg

make sure that meg contaner is running before to proceed

kubectl get pods meg-0

Clean MEG deployment¶

#### meg ####
helm uninstall meg
kubectl delete pvc meg-data-meg-0