Resolved issue with Canary deploy (#247)

src/strategyHelpers/canary/canaryHelper.ts

@@ -2,6 +2,7 @@ import {Kubectl} from '../../types/kubectl'
 import * as fs from 'fs'
 import * as yaml from 'js-yaml'
 import * as core from '@actions/core'
+import {ExecOutput} from '@actions/exec'
 import {
    isDeploymentEntity,
    isServiceEntity,
@@ -30,7 +31,7 @@ export async function deleteCanaryDeployment(
    includeServices: boolean
 ) {
    if (manifestFilePaths == null || manifestFilePaths.length == 0) {
-      throw new Error('Manifest file not found')
+      throw new Error('Manifest files for deleting canary deployment not found')
    }
 
    await cleanUpCanary(kubectl, manifestFilePaths, includeServices)
@@ -54,7 +55,7 @@ export function isResourceMarkedAsStable(inputObject: any): boolean {
 
 export function getStableResource(inputObject: any): object {
    const replicaCount = specContainsReplicas(inputObject.kind)
-      ? inputObject.metadata.replicas
+      ? inputObject.spec.replicas
       : 0
 
    return getNewCanaryObject(inputObject, replicaCount, STABLE_LABEL_VALUE)
@@ -79,7 +80,12 @@ export async function fetchResource(
    kind: string,
    name: string
 ) {
-   const result = await kubectl.getResource(kind, name)
+   let result: ExecOutput
+   try {
+      result = await kubectl.getResource(kind, name)
+   } catch (e) {
+      core.debug(`detected error while fetching resources: ${e}`)
+   }
 
    if (!result || result?.stderr) {
       return null
@@ -93,7 +99,7 @@ export async function fetchResource(
          return resource
       } catch (ex) {
          core.debug(
-            `Exception occurred while Parsing ${resource} in JSON object: ${ex}`
+            `Exception occurred while parsing ${resource} in JSON object: ${ex}`
          )
       }
    }
@@ -111,6 +117,26 @@ export function getStableResourceName(name: string) {
    return name + STABLE_SUFFIX
 }
 
+export function getBaselineDeploymentFromStableDeployment(
+   inputObject: any,
+   replicaCount: number
+): object {
+   // TODO: REFACTOR TO MAKE EVERYTHING TYPE SAFE
+   const oldName = inputObject.metadata.name
+   const newName =
+      oldName.substring(0, oldName.length - STABLE_SUFFIX.length) +
+      BASELINE_SUFFIX
+
+   const newObject = getNewCanaryObject(
+      inputObject,
+      replicaCount,
+      BASELINE_LABEL_VALUE
+   ) as any
+   newObject.metadata.name = newName
+
+   return newObject
+}
+
 function getNewCanaryObject(
    inputObject: any,
    replicas: number,