pet-battle-api

A reactive back end for pet battle based on the quarkus reactive mutiny framework with mongodb and panache.

Develop

for the impatient

make podman-run

local commands

Database:

podman run --name mongo -p 27017:27017 mongo:latest

Application:

mvn compile quarkus:dev

OR

java -Dquarkus-profile=dev -jar ./target/pet-battle-api-1.0-SNAPSHOT-runner

OR

podman run -e QUARKUS_PROFILE=dev -e quarkus.mongodb.connection-string=mongodb://localhost:27017 quay.io/eformat/pet-battle-api:latest

See Makefile for container targets:

make podman-build
make podman-run
make podman-stop
make podman-push

Helm3

New project

oc new-project cats

Using the mongo-persistent template on OpenShift

helm template --dependency-update cats -f chart/values.yaml chart | oc apply -f-

OR from deployed chart

helm repo add https://eformat.github.io/helm-charts
helm install pet-battle-api https://eformat.github.io/helm-charts/pet-battle-api-0.0.2.tgz 

With mongodb replicaset (TODO: replicaset commented out for now but works ok)

Get SCC UID for project

oc new-project cats
SCC=$(oc get project cats -o jsonpath='{.metadata.annotations.openshift\.io/sa\.scc\.uid-range}')
SCCUID=${SCC%%/*}

helm template foobar -f chart/values.yaml --set mongodb-replicaset.securityContext.fsGroup=$SCCUID --set mongodb-replicaset.securityContext.runAsUser=$SCCUID --set mongodb-replicaset.persistentVolume.storageClass=gp2 --set mongodb-replicaset.persistentVolume.size=1Gi chart | oc apply -f-

Deploy mongodb and prebuilt application on OpenShift

oc new-project cats
oc new-app mongodb-persistent -p MONGODB_DATABASE=cats
oc apply -f src/main/kubernetes/install.yaml

Build and Deploy on OpenShift using s2i.

oc new-project cats
oc new-app mongodb-persistent -p MONGODB_DATABASE=cats
oc new-build --name=cats quay.io/quarkus/ubi-quarkus-native-s2i:20.0.0-java8~https://github.com/eformat/pet-battle-api
oc new-app cats
oc expose svc cats
oc set env --from=secret/mongodb dc/cats

Note: the latest quarkus nightly build is available here https://oss.sonatype.org/content/repositories/snapshots - you may want to use a released version

<quarkus.version>999-SNAPSHOT</quarkus.version>

If local nexus deployed to OpenShift

oc set env bc/cats MAVEN_MIRROR_URL=http://nexus.nexus.svc.cluster.local:8081/repository/maven-public/

Swagger available at

http://cats-cats.apps.<cluster-domain>/swagger-ui

Test

export CATID=5e69e003a765314bf6d04281
export HOST=0.0.0.0:8080

curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats | jq .
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/ids | jq .
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/count | jq .
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/${CATID} | jq .
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/${CATID} | jq ".id"
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/${CATID} | jq ".count"
curl -s -H "Content-Type: application/json" -X DELETE http://${HOST}/cats/${CATID}
curl -s -H "Content-Type: application/json" -X PUT http://${HOST}/cats/${CATID}
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/${CATID} | jq ".image" | sed -e 's|"||g' | base64 -d > ~/Pictures/foo.png
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/topcats | jq ".[].count"
curl -s -H "Content-Type: application/json" -X DELETE http://${HOST}/cats/kittykiller
curl -s -H "Content-Type: application/json" -X GET "http://${HOST}/cats/datatable?draw=1&start=0&length=10&search\[value\]=" | jq
curl -s -H "Content-Type: application/json" -X GET http://${HOST}/cats/loadlitter

Prometheus & Grafana metrics endpoint

curl http://${HOST}/metrics/application

oc create configmap prom --from-file=prometheus.yml=src/main/kubernetes/prometheus.yml
oc apply -f src/main/kubernetes/prom-rbac.yaml
oc new-app prom/prometheus && oc expose svc/prometheus
oc set volume dc/prometheus --add -t configmap --configmap-name=prom -m /etc/prometheus/prometheus.yml --sub-path=prometheus.yml
oc rollout status -w dc/prometheus
oc new-app grafana/grafana && oc expose svc/grafana
oc rollout status -w dc/grafana

Delete application (not mongodb)

oc delete dc,svc,route,is -lapp=cats

OR

helm uninstall pet-battle-api