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Resolved issue with Canary deploy (#247)

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This commit is contained in:
Jaiveer Katariya
2022-10-14 12:25:27 -04:00
committed by GitHub
parent c8f050230d
commit d64c205796
7 changed files with 151 additions and 96 deletions
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src/strategyHelpers/canary/podCanaryHelper.ts
+22 -32
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@@ -8,9 +8,13 @@ import * as canaryDeploymentHelper from './canaryHelper'
import {isDeploymentEntity} from '../../types/kubernetesTypes'
import {getReplicaCount} from '../../utilities/manifestUpdateUtils'
export async function deployPodCanary(filePaths: string[], kubectl: Kubectl) {
export async function deployPodCanary(
filePaths: string[],
kubectl: Kubectl,
onlyDeployStable: boolean = false
) {
const newObjectsList = []
const percentage = parseInt(core.getInput('percentage'))
const percentage = parseInt(core.getInput('percentage', {required: true}))
if (percentage < 0 || percentage > 100)
throw Error('Percentage must be between 0 and 100')
@@ -22,7 +26,7 @@ export async function deployPodCanary(filePaths: string[], kubectl: Kubectl) {
const name = inputObject.metadata.name
const kind = inputObject.kind
if (isDeploymentEntity(kind)) {
if (!onlyDeployStable && isDeploymentEntity(kind)) {
core.debug('Calculating replica count for canary')
const canaryReplicaCount = calculateReplicaCountForCanary(
inputObject,
@@ -30,37 +34,22 @@ export async function deployPodCanary(filePaths: string[], kubectl: Kubectl) {
)
core.debug('Replica count is ' + canaryReplicaCount)
// Get stable object
core.debug('Querying stable object')
const newCanaryObject = canaryDeploymentHelper.getNewCanaryResource(
inputObject,
canaryReplicaCount
)
newObjectsList.push(newCanaryObject)
// if there's already a stable object, deploy baseline as well
const stableObject = await canaryDeploymentHelper.fetchResource(
kubectl,
kind,
name
)
if (!stableObject) {
core.debug('Stable object not found. Creating canary object')
const newCanaryObject =
canaryDeploymentHelper.getNewCanaryResource(
inputObject,
canaryReplicaCount
)
newObjectsList.push(newCanaryObject)
} else {
if (stableObject) {
core.debug(
'Creating canary and baseline objects. Stable object found: ' +
JSON.stringify(stableObject)
`Stable object found for ${kind} ${name}. Creating baseline objects`
)
const newCanaryObject =
canaryDeploymentHelper.getNewCanaryResource(
inputObject,
canaryReplicaCount
)
core.debug(
'New canary object: ' + JSON.stringify(newCanaryObject)
)
const newBaselineObject =
canaryDeploymentHelper.getNewBaselineResource(
stableObject,
@@ -69,12 +58,10 @@ export async function deployPodCanary(filePaths: string[], kubectl: Kubectl) {
core.debug(
'New baseline object: ' + JSON.stringify(newBaselineObject)
)
newObjectsList.push(newCanaryObject)
newObjectsList.push(newBaselineObject)
}
} else {
// update non deployment entity as it is
// deploy non deployment entity or regular deployments for promote as they are
newObjectsList.push(inputObject)
}
}
@@ -88,7 +75,10 @@ export async function deployPodCanary(filePaths: string[], kubectl: Kubectl) {
return {result, newFilePaths: manifestFiles}
}
function calculateReplicaCountForCanary(inputObject: any, percentage: number) {
export function calculateReplicaCountForCanary(
inputObject: any,
percentage: number
) {
const inputReplicaCount = getReplicaCount(inputObject)
return Math.round((inputReplicaCount * percentage) / 100)
return Math.max(1, Math.round((inputReplicaCount * percentage) / 100))
}