Export resources

The purpose of this project is to define an approach and FluentBuilder to query the resources from a K8s Custom Resource such as a Component that we would like to export as Helm chart, kubernetes list, ...

https://github.com/snowdrop/query-api/blob/master/cmd/export.go#L84-L106

Instructions

Build the go tool

• Build the go tool locally

git clone https://github.com/snowdrop/query-api.git && cd query-api 
make all

Query resources using Field

./bin/tool search

Generate list of k8s yaml resources

• Build the go tool locally and use it as cobra command

./bin/tool export -c my-spring-boot > result.yml

• Next, create a new project/namespace and deploy the list of the k8s resource

oc new-project dummy
oc create -f result.yml

• Check if all the resources have been well created like the replicationController and Pod

oc get all,pvc
NAME                         READY     STATUS    RESTARTS   AGE
pod/my-spring-boot-1-8bfds   1/1       Running   0          3m

NAME                                     DESIRED   CURRENT   READY     AGE
replicationcontroller/my-spring-boot-1   1         1         1         3m

NAME                     TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)    AGE
service/my-spring-boot   ClusterIP   172.30.207.131   <none>        8080/TCP   3m

NAME                                                REVISION   DESIRED   CURRENT   TRIGGERED BY
deploymentconfig.apps.openshift.io/my-spring-boot   1          1         1         image(copy-supervisord:latest),image(dev-runtime-spring-boot:latest)

NAME                                                     DOCKER REPO                                               TAGS      UPDATED
imagestream.image.openshift.io/copy-supervisord          172.30.1.1:5000/my-spring-boot1/copy-supervisord          latest    3 minutes ago
imagestream.image.openshift.io/dev-runtime-spring-boot   172.30.1.1:5000/my-spring-boot1/dev-runtime-spring-boot   latest    3 minutes ago

NAME                                           STATUS    VOLUME    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
persistentvolumeclaim/m2-data-my-spring-boot   Bound     pv0068    100Gi      RWO,ROX,RWX                   3m

Export resources as helm chart

• Export the resources as Helm Chart

./bin/tool export -c my-spring-boot -o helm

• Check the chart project created locally for my-spring-boot component

tree my-spring-boot 
my-spring-boot
├── Chart.yaml
├── charts
├── templates
│   ├── NOTES.txt
│   ├── _helpers.tpl
│   ├── deploymentconfig.yml
│   ├── imagestream.yml
│   ├── persistentvolumeclaim.yml
│   └── service.yml
└── values.yaml

2 directories, 8 files