Blue/Green Refactor (#229)

* fresh new branch

* Added coverage to gitignore

Signed-off-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>

* reverted package-lock.json

Signed-off-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>
Co-authored-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>

src/strategyHelpers/blueGreen/reject.ts

@@ -0,0 +1,81 @@
+import {K8sDeleteObject} from '../../types/k8sObject'
+import {Kubectl} from '../../types/kubectl'
+import {
+   BlueGreenDeployment,
+   BlueGreenManifests,
+   BlueGreenRejectResult
+} from '../../types/blueGreenTypes'
+import {deleteGreenObjects, NONE_LABEL_VALUE} from './blueGreenHelper'
+import {routeBlueGreenSMI} from './route'
+import {cleanupSMI} from './smiBlueGreenHelper'
+import {routeBlueGreenIngressUnchanged, routeBlueGreenService} from './route'
+
+export async function rejectBlueGreenIngress(
+   kubectl: Kubectl,
+   manifestObjects: BlueGreenManifests
+): Promise<BlueGreenRejectResult> {
+   // get all kubernetes objects defined in manifest files
+   // route ingress to stables services
+   const routeResult = await routeBlueGreenIngressUnchanged(
+      kubectl,
+      manifestObjects.serviceNameMap,
+      manifestObjects.ingressEntityList
+   )
+
+   // delete green services and deployments
+   const deleteResult = await deleteGreenObjects(
+      kubectl,
+      [].concat(
+         manifestObjects.deploymentEntityList,
+         manifestObjects.serviceEntityList
+      )
+   )
+
+   return {routeResult, deleteResult}
+}
+
+export async function rejectBlueGreenService(
+   kubectl: Kubectl,
+   manifestObjects: BlueGreenManifests
+): Promise<BlueGreenRejectResult> {
+   // route to stable objects
+   const routeResult = await routeBlueGreenService(
+      kubectl,
+      NONE_LABEL_VALUE,
+      manifestObjects.serviceEntityList
+   )
+
+   // delete new deployments with green suffix
+   const deleteResult = await deleteGreenObjects(
+      kubectl,
+      manifestObjects.deploymentEntityList
+   )
+
+   return {routeResult, deleteResult}
+}
+
+export async function rejectBlueGreenSMI(
+   kubectl: Kubectl,
+   manifestObjects: BlueGreenManifests
+): Promise<BlueGreenRejectResult> {
+   // route trafficsplit to stable deployments
+   const routeResult = await routeBlueGreenSMI(
+      kubectl,
+      NONE_LABEL_VALUE,
+      manifestObjects.serviceEntityList
+   )
+
+   // delete rejected new bluegreen deployments
+   const deletedObjects = await deleteGreenObjects(
+      kubectl,
+      manifestObjects.deploymentEntityList
+   )
+
+   // delete trafficsplit and extra services
+   const cleanupResult = await cleanupSMI(
+      kubectl,
+      manifestObjects.serviceEntityList
+   )
+
+   return {routeResult, deleteResult: [].concat(deletedObjects, cleanupResult)}
+}