aws-cdk
Version:
CDK Toolkit, the command line tool for CDK apps
170 lines • 24.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ClassifiedChanges = exports.EcsHotswapProperties = exports.HotswapPropertyOverrides = exports.HotswappableChangeCandidate = exports.HotswapMode = exports.ICON = void 0;
exports.transformObjectKeys = transformObjectKeys;
exports.lowerCaseFirstCharacter = lowerCaseFirstCharacter;
exports.classifyChanges = classifyChanges;
exports.reportNonHotswappableChange = reportNonHotswappableChange;
exports.reportNonHotswappableResource = reportNonHotswappableResource;
const error_1 = require("../../toolkit/error");
exports.ICON = '✨';
var HotswapMode;
(function (HotswapMode) {
/**
* Will fall back to CloudFormation when a non-hotswappable change is detected
*/
HotswapMode["FALL_BACK"] = "fall-back";
/**
* Will not fall back to CloudFormation when a non-hotswappable change is detected
*/
HotswapMode["HOTSWAP_ONLY"] = "hotswap-only";
/**
* Will not attempt to hotswap anything and instead go straight to CloudFormation
*/
HotswapMode["FULL_DEPLOYMENT"] = "full-deployment";
})(HotswapMode || (exports.HotswapMode = HotswapMode = {}));
/**
* Represents a change that can be hotswapped.
*/
class HotswappableChangeCandidate {
constructor(logicalId, oldValue, newValue, propertyUpdates) {
this.logicalId = logicalId;
this.oldValue = oldValue;
this.newValue = newValue;
this.propertyUpdates = propertyUpdates;
}
}
exports.HotswappableChangeCandidate = HotswappableChangeCandidate;
/**
* Represents configuration property overrides for hotswap deployments
*/
class HotswapPropertyOverrides {
constructor(ecsHotswapProperties) {
this.ecsHotswapProperties = ecsHotswapProperties;
}
}
exports.HotswapPropertyOverrides = HotswapPropertyOverrides;
/**
* Represents configuration properties for ECS hotswap deployments
*/
class EcsHotswapProperties {
constructor(minimumHealthyPercent, maximumHealthyPercent) {
if (minimumHealthyPercent !== undefined && minimumHealthyPercent < 0) {
throw new error_1.ToolkitError('hotswap-ecs-minimum-healthy-percent can\'t be a negative number');
}
if (maximumHealthyPercent !== undefined && maximumHealthyPercent < 0) {
throw new error_1.ToolkitError('hotswap-ecs-maximum-healthy-percent can\'t be a negative number');
}
// In order to preserve the current behaviour, when minimumHealthyPercent is not defined, it will be set to the currently default value of 0
if (minimumHealthyPercent == undefined) {
this.minimumHealthyPercent = 0;
}
else {
this.minimumHealthyPercent = minimumHealthyPercent;
}
this.maximumHealthyPercent = maximumHealthyPercent;
}
/**
* Check if any hotswap properties are defined
* @returns true if all properties are undefined, false otherwise
*/
isEmpty() {
return this.minimumHealthyPercent === 0 && this.maximumHealthyPercent === undefined;
}
}
exports.EcsHotswapProperties = EcsHotswapProperties;
/**
* This function transforms all keys (recursively) in the provided `val` object.
*
* @param val The object whose keys need to be transformed.
* @param transform The function that will be applied to each key.
* @param exclude The keys that will not be transformed and copied to output directly
* @returns A new object with the same values as `val`, but with all keys transformed according to `transform`.
*/
function transformObjectKeys(val, transform, exclude = {}) {
if (val == null || typeof val !== 'object') {
return val;
}
if (Array.isArray(val)) {
// For arrays we just pass parent's exclude object directly
// since it makes no sense to specify different exclude options for each array element
return val.map((input) => transformObjectKeys(input, transform, exclude));
}
const ret = {};
for (const [k, v] of Object.entries(val)) {
const childExclude = exclude[k];
if (childExclude === true) {
// we don't transform this object if the key is specified in exclude
ret[transform(k)] = v;
}
else {
ret[transform(k)] = transformObjectKeys(v, transform, childExclude);
}
}
return ret;
}
/**
* This function lower cases the first character of the string provided.
*/
function lowerCaseFirstCharacter(str) {
return str.length > 0 ? `${str[0].toLowerCase()}${str.slice(1)}` : str;
}
class ClassifiedChanges {
constructor(change, hotswappableProps, nonHotswappableProps) {
this.change = change;
this.hotswappableProps = hotswappableProps;
this.nonHotswappableProps = nonHotswappableProps;
}
reportNonHotswappablePropertyChanges(ret) {
const nonHotswappablePropNames = Object.keys(this.nonHotswappableProps);
if (nonHotswappablePropNames.length > 0) {
const tagOnlyChange = nonHotswappablePropNames.length === 1 && nonHotswappablePropNames[0] === 'Tags';
reportNonHotswappableChange(ret, this.change, this.nonHotswappableProps, tagOnlyChange
? 'Tags are not hotswappable'
: `resource properties '${nonHotswappablePropNames}' are not hotswappable on this resource type`);
}
}
get namesOfHotswappableProps() {
return Object.keys(this.hotswappableProps);
}
}
exports.ClassifiedChanges = ClassifiedChanges;
function classifyChanges(xs, hotswappablePropNames) {
const hotswappableProps = {};
const nonHotswappableProps = {};
for (const [name, propDiff] of Object.entries(xs.propertyUpdates)) {
if (hotswappablePropNames.includes(name)) {
hotswappableProps[name] = propDiff;
}
else {
nonHotswappableProps[name] = propDiff;
}
}
return new ClassifiedChanges(xs, hotswappableProps, nonHotswappableProps);
}
function reportNonHotswappableChange(ret, change, nonHotswappableProps, reason, hotswapOnlyVisible) {
let hotswapOnlyVisibility = true;
if (hotswapOnlyVisible === false) {
hotswapOnlyVisibility = false;
}
ret.push({
hotswappable: false,
rejectedChanges: Object.keys(nonHotswappableProps ?? change.propertyUpdates),
logicalId: change.logicalId,
resourceType: change.newValue.Type,
reason,
hotswapOnlyVisible: hotswapOnlyVisibility,
});
}
function reportNonHotswappableResource(change, reason) {
return [
{
hotswappable: false,
rejectedChanges: Object.keys(change.propertyUpdates),
logicalId: change.logicalId,
resourceType: change.newValue.Type,
reason,
},
];
}
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type { PropertyDifference, Resource } from '@aws-cdk/cloudformation-diff';\nimport { ToolkitError } from '../../toolkit/error';\nimport type { SDK } from '../aws-auth';\n\nexport const ICON = '✨';\n\nexport interface HotswappableChange {\n  readonly hotswappable: true;\n  readonly resourceType: string;\n  readonly propsChanged: Array<string>;\n  /**\n   * The name of the service being hotswapped.\n   * Used to set a custom User-Agent for SDK calls.\n   */\n  readonly service: string;\n\n  /**\n   * The names of the resources being hotswapped.\n   */\n  readonly resourceNames: string[];\n\n  readonly apply: (sdk: SDK) => Promise<void>;\n}\n\nexport interface NonHotswappableChange {\n  readonly hotswappable: false;\n  readonly resourceType: string;\n  readonly rejectedChanges: Array<string>;\n  readonly logicalId: string;\n  /**\n   * Tells the user exactly why this change was deemed non-hotswappable and what its logical ID is.\n   * If not specified, `reason` will be autofilled to state that the properties listed in `rejectedChanges` are not hotswappable.\n   */\n  readonly reason?: string;\n  /**\n   * Whether or not to show this change when listing non-hotswappable changes in HOTSWAP_ONLY mode. Does not affect\n   * listing in FALL_BACK mode.\n   *\n   * @default true\n   */\n  readonly hotswapOnlyVisible?: boolean;\n}\n\nexport type ChangeHotswapResult = Array<HotswappableChange | NonHotswappableChange>;\n\nexport interface ClassifiedResourceChanges {\n  hotswappableChanges: HotswappableChange[];\n  nonHotswappableChanges: NonHotswappableChange[];\n}\n\nexport enum HotswapMode {\n  /**\n   * Will fall back to CloudFormation when a non-hotswappable change is detected\n   */\n  FALL_BACK = 'fall-back',\n\n  /**\n   * Will not fall back to CloudFormation when a non-hotswappable change is detected\n   */\n  HOTSWAP_ONLY = 'hotswap-only',\n\n  /**\n   * Will not attempt to hotswap anything and instead go straight to CloudFormation\n   */\n  FULL_DEPLOYMENT = 'full-deployment',\n}\n\n/**\n * Represents a change that can be hotswapped.\n */\nexport class HotswappableChangeCandidate {\n  /**\n   * The logical ID of the resource which is being changed\n   */\n  public readonly logicalId: string;\n\n  /**\n   * The value the resource is being updated from\n   */\n  public readonly oldValue: Resource;\n\n  /**\n   * The value the resource is being updated to\n   */\n  public readonly newValue: Resource;\n\n  /**\n   * The changes made to the resource properties\n   */\n  public readonly propertyUpdates: PropDiffs;\n\n  public constructor(logicalId: string, oldValue: Resource, newValue: Resource, propertyUpdates: PropDiffs) {\n    this.logicalId = logicalId;\n    this.oldValue = oldValue;\n    this.newValue = newValue;\n    this.propertyUpdates = propertyUpdates;\n  }\n}\n\ntype Exclude = { [key: string]: Exclude | true };\n\n/**\n * Represents configuration property overrides for hotswap deployments\n */\nexport class HotswapPropertyOverrides {\n  // Each supported resource type will have its own properties. Currently this is ECS\n  ecsHotswapProperties?: EcsHotswapProperties;\n\n  public constructor (ecsHotswapProperties?: EcsHotswapProperties) {\n    this.ecsHotswapProperties = ecsHotswapProperties;\n  }\n}\n\n/**\n * Represents configuration properties for ECS hotswap deployments\n */\nexport class EcsHotswapProperties {\n  // The lower limit on the number of your service's tasks that must remain in the RUNNING state during a deployment, as a percentage of the desiredCount\n  readonly minimumHealthyPercent?: number;\n  // The upper limit on the number of your service's tasks that are allowed in the RUNNING or PENDING state during a deployment, as a percentage of the desiredCount\n  readonly maximumHealthyPercent?: number;\n\n  public constructor (minimumHealthyPercent?: number, maximumHealthyPercent?: number) {\n    if (minimumHealthyPercent !== undefined && minimumHealthyPercent < 0 ) {\n      throw new ToolkitError('hotswap-ecs-minimum-healthy-percent can\\'t be a negative number');\n    }\n    if (maximumHealthyPercent !== undefined && maximumHealthyPercent < 0 ) {\n      throw new ToolkitError('hotswap-ecs-maximum-healthy-percent can\\'t be a negative number');\n    }\n    // In order to preserve the current behaviour, when minimumHealthyPercent is not defined, it will be set to the currently default value of 0\n    if (minimumHealthyPercent == undefined) {\n      this.minimumHealthyPercent = 0;\n    } else {\n      this.minimumHealthyPercent = minimumHealthyPercent;\n    }\n    this.maximumHealthyPercent = maximumHealthyPercent;\n  }\n\n  /**\n   * Check if any hotswap properties are defined\n   * @returns true if all properties are undefined, false otherwise\n  */\n  public isEmpty(): boolean {\n    return this.minimumHealthyPercent === 0 && this.maximumHealthyPercent === undefined;\n  }\n}\n\n/**\n * This function transforms all keys (recursively) in the provided `val` object.\n *\n * @param val The object whose keys need to be transformed.\n * @param transform The function that will be applied to each key.\n * @param exclude The keys that will not be transformed and copied to output directly\n * @returns A new object with the same values as `val`, but with all keys transformed according to `transform`.\n */\nexport function transformObjectKeys(val: any, transform: (str: string) => string, exclude: Exclude = {}): any {\n  if (val == null || typeof val !== 'object') {\n    return val;\n  }\n  if (Array.isArray(val)) {\n    // For arrays we just pass parent's exclude object directly\n    // since it makes no sense to specify different exclude options for each array element\n    return val.map((input: any) => transformObjectKeys(input, transform, exclude));\n  }\n  const ret: { [k: string]: any } = {};\n  for (const [k, v] of Object.entries(val)) {\n    const childExclude = exclude[k];\n    if (childExclude === true) {\n      // we don't transform this object if the key is specified in exclude\n      ret[transform(k)] = v;\n    } else {\n      ret[transform(k)] = transformObjectKeys(v, transform, childExclude);\n    }\n  }\n  return ret;\n}\n\n/**\n * This function lower cases the first character of the string provided.\n */\nexport function lowerCaseFirstCharacter(str: string): string {\n  return str.length > 0 ? `${str[0].toLowerCase()}${str.slice(1)}` : str;\n}\n\nexport type PropDiffs = Record<string, PropertyDifference<any>>;\n\nexport class ClassifiedChanges {\n  public constructor(\n    public readonly change: HotswappableChangeCandidate,\n    public readonly hotswappableProps: PropDiffs,\n    public readonly nonHotswappableProps: PropDiffs,\n  ) {}\n\n  public reportNonHotswappablePropertyChanges(ret: ChangeHotswapResult): void {\n    const nonHotswappablePropNames = Object.keys(this.nonHotswappableProps);\n    if (nonHotswappablePropNames.length > 0) {\n      const tagOnlyChange = nonHotswappablePropNames.length === 1 && nonHotswappablePropNames[0] === 'Tags';\n      reportNonHotswappableChange(\n        ret,\n        this.change,\n        this.nonHotswappableProps,\n        tagOnlyChange\n          ? 'Tags are not hotswappable'\n          : `resource properties '${nonHotswappablePropNames}' are not hotswappable on this resource type`,\n      );\n    }\n  }\n\n  public get namesOfHotswappableProps(): string[] {\n    return Object.keys(this.hotswappableProps);\n  }\n}\n\nexport function classifyChanges(xs: HotswappableChangeCandidate, hotswappablePropNames: string[]): ClassifiedChanges {\n  const hotswappableProps: PropDiffs = {};\n  const nonHotswappableProps: PropDiffs = {};\n\n  for (const [name, propDiff] of Object.entries(xs.propertyUpdates)) {\n    if (hotswappablePropNames.includes(name)) {\n      hotswappableProps[name] = propDiff;\n    } else {\n      nonHotswappableProps[name] = propDiff;\n    }\n  }\n\n  return new ClassifiedChanges(xs, hotswappableProps, nonHotswappableProps);\n}\n\nexport function reportNonHotswappableChange(\n  ret: ChangeHotswapResult,\n  change: HotswappableChangeCandidate,\n  nonHotswappableProps?: PropDiffs,\n  reason?: string,\n  hotswapOnlyVisible?: boolean,\n): void {\n  let hotswapOnlyVisibility = true;\n  if (hotswapOnlyVisible === false) {\n    hotswapOnlyVisibility = false;\n  }\n  ret.push({\n    hotswappable: false,\n    rejectedChanges: Object.keys(nonHotswappableProps ?? change.propertyUpdates),\n    logicalId: change.logicalId,\n    resourceType: change.newValue.Type,\n    reason,\n    hotswapOnlyVisible: hotswapOnlyVisibility,\n  });\n}\n\nexport function reportNonHotswappableResource(\n  change: HotswappableChangeCandidate,\n  reason?: string,\n): ChangeHotswapResult {\n  return [\n    {\n      hotswappable: false,\n      rejectedChanges: Object.keys(change.propertyUpdates),\n      logicalId: change.logicalId,\n      resourceType: change.newValue.Type,\n      reason,\n    },\n  ];\n}\n"]}