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100 changes: 100 additions & 0 deletions
100
packages/@aws-cdk-testing/cli-integ/resources/cdk-apps/rollback-test-app/app.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| const cdk = require('aws-cdk-lib'); | ||
| const lambda = require('aws-cdk-lib/aws-lambda'); | ||
| const cr = require('aws-cdk-lib/custom-resources'); | ||
|
|
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| /** | ||
| * This stack will be deployed in multiple phases, to achieve a very specific effect | ||
| * | ||
| * It contains resources r1 and r2, where r1 gets deployed first. | ||
| * | ||
| * - PHASE = 1: both resources deploy regularly. | ||
| * - PHASE = 2a: r1 gets updated, r2 will fail to update | ||
| * - PHASE = 2b: r1 gets updated, r2 will fail to update, and r1 will fail its rollback. | ||
| * | ||
| * To exercise this app: | ||
| * | ||
| * ``` | ||
| * env PHASE=1 npx cdk deploy | ||
| * env PHASE=2b npx cdk deploy --no-rollback | ||
| * # This will leave the stack in UPDATE_FAILED | ||
| * | ||
| * env PHASE=2b npx cdk rollback | ||
| * # This will start a rollback that will fail because r1 fails its rollabck | ||
| * | ||
| * env PHASE=2b npx cdk rollback --force | ||
| * # This will retry the rollabck and skip r1 | ||
| * ``` | ||
| */ | ||
| class RollbacktestStack extends cdk.Stack { | ||
| constructor(scope, id, props) { | ||
| super(scope, id, props); | ||
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| let r1props = {}; | ||
| let r2props = {}; | ||
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| const phase = process.env.PHASE; | ||
| switch (phase) { | ||
| case '1': | ||
| // Normal deployment | ||
| break; | ||
| case '2a': | ||
| // r1 updates normally, r2 fails updating | ||
| r2props.FailUpdate = true; | ||
| break; | ||
| case '2b': | ||
| // r1 updates normally, r2 fails updating, r1 fails rollback | ||
| r1props.FailRollback = true; | ||
| r2props.FailUpdate = true; | ||
| break; | ||
| } | ||
|
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| const fn = new lambda.Function(this, 'Fun', { | ||
| runtime: lambda.Runtime.NODEJS_LATEST, | ||
| code: lambda.Code.fromInline(`exports.handler = async function(event, ctx) { | ||
| const key = \`Fail\${event.RequestType}\`; | ||
| if (event.ResourceProperties[key]) { | ||
| throw new Error(\`\${event.RequestType} fails!\`); | ||
| } | ||
| if (event.OldResourceProperties?.FailRollback) { | ||
| throw new Error('Failing rollback!'); | ||
| } | ||
| return {}; | ||
| }`), | ||
| handler: 'index.handler', | ||
| timeout: cdk.Duration.minutes(1), | ||
| }); | ||
| const provider = new cr.Provider(this, "MyProvider", { | ||
| onEventHandler: fn, | ||
| }); | ||
|
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| const r1 = new cdk.CustomResource(this, 'r1', { | ||
| serviceToken: provider.serviceToken, | ||
| properties: r1props, | ||
| }); | ||
| const r2 = new cdk.CustomResource(this, 'r2', { | ||
| serviceToken: provider.serviceToken, | ||
| properties: r2props, | ||
| }); | ||
| r2.node.addDependency(r1); | ||
| } | ||
| } | ||
|
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| const app = new cdk.App({ | ||
| context: { | ||
| '@aws-cdk/core:assetHashSalt': process.env.CODEBUILD_BUILD_ID, // Force all assets to be unique, but consistent in one build | ||
| }, | ||
| }); | ||
|
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| const defaultEnv = { | ||
| account: process.env.CDK_DEFAULT_ACCOUNT, | ||
| region: process.env.CDK_DEFAULT_REGION | ||
| }; | ||
|
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| const stackPrefix = process.env.STACK_NAME_PREFIX; | ||
| if (!stackPrefix) { | ||
| throw new Error(`the STACK_NAME_PREFIX environment variable is required`); | ||
| } | ||
|
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| // Sometimes we don't want to synthesize all stacks because it will impact the results | ||
| new RollbacktestStack(app, `${stackPrefix}-test-rollback`, { env: defaultEnv }); | ||
| app.synth(); |
7 changes: 7 additions & 0 deletions
7
packages/@aws-cdk-testing/cli-integ/resources/cdk-apps/rollback-test-app/cdk.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| { | ||
| "app": "node app.js", | ||
| "versionReporting": false, | ||
| "context": { | ||
| "aws-cdk:enableDiffNoFail": "true" | ||
| } | ||
| } |
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