faastjs
Version:
Serverless batch computing made simple.
176 lines • 26.2 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const ava_1 = tslib_1.__importDefault(require("ava"));
const uuid_1 = require("uuid");
const index_1 = require("../index");
const aws_faast_1 = require("../src/aws/aws-faast");
const functions = tslib_1.__importStar(require("./fixtures/functions"));
const util_1 = require("./fixtures/util");
const util_aws_1 = require("./fixtures/util-aws");
const assert_1 = tslib_1.__importDefault(require("assert"));
async function waitForLogGroupCreation(cloudwatch, logGroupName, message) {
let n = 0;
while (true) {
await (0, util_1.sleep)(1000);
try {
n++;
const described = await cloudwatch.describeLogGroups({
logGroupNamePrefix: logGroupName
});
if (!described.logGroups) {
continue;
}
const retrievedLogGroup = described.logGroups?.[0]?.logGroupName;
if (!retrievedLogGroup) {
continue;
}
(0, assert_1.default)(retrievedLogGroup === logGroupName, `Unexpected logGroupName: ${retrievedLogGroup}, expecting ${logGroupName}`);
const logResult = await cloudwatch.filterLogEvents({ logGroupName });
const events = logResult.events ?? [];
// console.log(`[${n}] Found log group: ${logGroupName}`);
let foundMessage = false;
for (const event of events) {
// console.log(
// `[${n}] ${event.logStreamName} ${event.eventId} ${event.timestamp} ${event.message}`
// );
if (event.message.includes(message)) {
foundMessage = true;
}
if (foundMessage && event.message.match(/REPORT RequestId/)) {
return;
}
}
}
catch (err) {
console.error(`Transient error waiting for log group creation: ${err}`);
}
}
}
ava_1.default.serial((0, util_1.title)("aws", "garbage collects functions that are called"), async (t) => {
// Idea behind this test: create a faast module and make a call. Then
// cleanup while leaving the resources in place. Then create another faast
// module and set its retention to 0, and use a synthetic gc worker to
// observe and verify the garbage collector actually cleans up.
const mod = await (0, index_1.faastAws)(functions, {
gc: "off",
mode: "queue",
description: t.title,
packageJson: {
name: (0, uuid_1.v4)(),
dependencies: {
tslib: "^1.9.1"
}
},
maxRetries: 0
});
try {
await mod.functions.consoleLog("gc-test-string");
const { cloudwatch } = mod.state.services;
const { logGroupName } = mod.state.resources;
await waitForLogGroupCreation(cloudwatch, logGroupName, "gc-test-string");
await mod.cleanup({ deleteResources: false, gcTimeout: 0 });
// Create some work for gc to do by removing the log retention policy, gc
// should add it back.
const deleteRetentionPolicy = (0, index_1.throttle)({ concurrency: 1, retry: 5 }, () => cloudwatch.deleteRetentionPolicy({ logGroupName }));
await deleteRetentionPolicy();
let deletedLayer = false;
const { layer, FunctionName } = mod.state.resources;
// log.gc.enabled = true;
const mod2 = await (0, index_1.faastAws)(functions, {
gc: "force",
retentionInDays: 0,
description: t.title,
_gcWorker: async (work, services) => {
switch (work.type) {
case "SetLogRetention":
// checkResourcesCleanedUp will verify the log group is
// deleted.
await (0, aws_faast_1.defaultGcWorker)(work, services);
break;
case "DeleteLayerVersion":
if (work.LayerName === layer.LayerName) {
index_1.log.gc(`deleting layer ${work.LayerName}`);
await (0, aws_faast_1.defaultGcWorker)(work, services);
deletedLayer = true;
}
break;
case "DeleteResources":
if (work.resources.FunctionName === FunctionName) {
index_1.log.gc(`deleting resources for ${FunctionName}`);
await (0, aws_faast_1.defaultGcWorker)(work, services);
}
}
}
});
await mod2.cleanup({ gcTimeout: 0 });
t.true(deletedLayer, "Deleted layer is true");
await (0, util_1.checkResourcesCleanedUp)(t, await (0, util_aws_1.getAWSResources)(mod, true));
}
finally {
index_1.log.gc.enabled = false;
await mod.cleanup({ deleteResources: true, deleteCaches: true, gcTimeout: 0 });
}
});
ava_1.default.serial((0, util_1.title)("aws", "garbage collects functions that are never called"), async (t) => {
const mod = await (0, index_1.faastAws)(functions, {
gc: "off",
mode: "queue",
description: t.title,
maxRetries: 0
});
try {
await mod.cleanup({ deleteResources: false, gcTimeout: 0 });
const { FunctionName } = mod.state.resources;
const mod2 = await (0, index_1.faastAws)(functions, {
gc: "force",
retentionInDays: 0,
description: t.title,
_gcWorker: async (work, services) => {
switch (work.type) {
case "DeleteResources":
if (work.resources.FunctionName === FunctionName) {
index_1.log.gc(`deleting resources for ${FunctionName}`);
await (0, aws_faast_1.defaultGcWorker)(work, services);
}
}
}
});
await mod2.cleanup({ gcTimeout: 0 });
// Don't fail if a log group exists because we didn't wait for its
// creation; it might be created by AWS after the cleanup occurs. The
// reason is that the log group will only be created if there's an
// invocation test, which only happens in the special case that the role
// was recently created. Which is true for the nightly testsuite but
// rarely elsewhere.
const { logGroupResult, ...resources } = await (0, util_aws_1.getAWSResources)(mod, true);
await (0, util_1.checkResourcesCleanedUp)(t, resources);
}
finally {
await mod.cleanup({ deleteResources: true, deleteCaches: true, gcTimeout: 0 });
}
});
ava_1.default.skip((0, util_1.title)("aws", "garbage collection caching"), async (t) => {
{
// Run a real gc so the build account doesn't accumulate garbage.
const mod = await (0, index_1.faastAws)(functions, { gc: "force", description: t.title });
await mod.cleanup({ gcTimeout: 0 });
t.is(await mod.state.gcPromise, "done");
}
{
// Test the in-memory cache that prevents gc from multiple faast.js
// instances from running at the same time.
const mod = await (0, index_1.faastAws)(functions, { description: t.title });
await mod.cleanup();
t.is(await mod.state.gcPromise, "skipped");
}
{
// Test the persistent cache that prevents gc from running too often
// even across processes.
(0, aws_faast_1.clearLastGc)();
const mod = await (0, index_1.faastAws)(functions, { description: t.title });
await mod.cleanup();
t.is(await mod.state.gcPromise, "skipped");
}
});
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{ CloudWatchLogs } from \"@aws-sdk/client-cloudwatch-logs\";\nimport test from \"ava\";\nimport { v4 as uuid } from \"uuid\";\nimport { faastAws, log, throttle } from \"../index\";\nimport { clearLastGc, defaultGcWorker } from \"../src/aws/aws-faast\";\nimport * as functions from \"./fixtures/functions\";\nimport { checkResourcesCleanedUp, sleep, title } from \"./fixtures/util\";\nimport { getAWSResources } from \"./fixtures/util-aws\";\nimport assert from \"assert\";\n\nasync function waitForLogGroupCreation(\n    cloudwatch: CloudWatchLogs,\n    logGroupName: string,\n    message: string\n) {\n    let n = 0;\n    while (true) {\n        await sleep(1000);\n        try {\n            n++;\n            const described = await cloudwatch.describeLogGroups({\n                logGroupNamePrefix: logGroupName\n            });\n            if (!described.logGroups) {\n                continue;\n            }\n            const retrievedLogGroup = described.logGroups?.[0]?.logGroupName;\n            if (!retrievedLogGroup) {\n                continue;\n            }\n            assert(\n                retrievedLogGroup === logGroupName,\n                `Unexpected logGroupName: ${retrievedLogGroup}, expecting ${logGroupName}`\n            );\n            const logResult = await cloudwatch.filterLogEvents({ logGroupName });\n            const events = logResult.events ?? [];\n            // console.log(`[${n}] Found log group: ${logGroupName}`);\n            let foundMessage = false;\n            for (const event of events) {\n                // console.log(\n                //     `[${n}] ${event.logStreamName} ${event.eventId} ${event.timestamp} ${event.message}`\n                // );\n                if (event.message!.includes(message)) {\n                    foundMessage = true;\n                }\n                if (foundMessage && event.message!.match(/REPORT RequestId/)) {\n                    return;\n                }\n            }\n        } catch (err: any) {\n            console.error(`Transient error waiting for log group creation: ${err}`);\n        }\n    }\n}\n\ntest.serial(title(\"aws\", \"garbage collects functions that are called\"), async t => {\n    // Idea behind this test: create a faast module and make a call. Then\n    // cleanup while leaving the resources in place. Then create another faast\n    // module and set its retention to 0, and use a synthetic gc worker to\n    // observe and verify the garbage collector actually cleans up.\n    const mod = await faastAws(functions, {\n        gc: \"off\",\n        mode: \"queue\",\n        description: t.title,\n        packageJson: {\n            name: uuid(),\n            dependencies: {\n                tslib: \"^1.9.1\"\n            }\n        },\n        maxRetries: 0\n    });\n    try {\n        await mod.functions.consoleLog(\"gc-test-string\");\n        const { cloudwatch } = mod.state.services;\n        const { logGroupName } = mod.state.resources;\n        await waitForLogGroupCreation(cloudwatch, logGroupName, \"gc-test-string\");\n        await mod.cleanup({ deleteResources: false, gcTimeout: 0 });\n\n        // Create some work for gc to do by removing the log retention policy, gc\n        // should add it back.\n        const deleteRetentionPolicy = throttle({ concurrency: 1, retry: 5 }, () =>\n            cloudwatch.deleteRetentionPolicy({ logGroupName })\n        );\n        await deleteRetentionPolicy();\n\n        let deletedLayer = false;\n        const { layer, FunctionName } = mod.state.resources;\n        // log.gc.enabled = true;\n        const mod2 = await faastAws(functions, {\n            gc: \"force\",\n            retentionInDays: 0,\n            description: t.title,\n            _gcWorker: async (work, services) => {\n                switch (work.type) {\n                    case \"SetLogRetention\":\n                        // checkResourcesCleanedUp will verify the log group is\n                        // deleted.\n                        await defaultGcWorker(work, services);\n                        break;\n                    case \"DeleteLayerVersion\":\n                        if (work.LayerName === layer!.LayerName) {\n                            log.gc(`deleting layer ${work.LayerName}`);\n                            await defaultGcWorker(work, services);\n                            deletedLayer = true;\n                        }\n                        break;\n                    case \"DeleteResources\":\n                        if (work.resources.FunctionName === FunctionName) {\n                            log.gc(`deleting resources for ${FunctionName}`);\n                            await defaultGcWorker(work, services);\n                        }\n                }\n            }\n        });\n\n        await mod2.cleanup({ gcTimeout: 0 });\n        t.true(deletedLayer, \"Deleted layer is true\");\n        await checkResourcesCleanedUp(t, await getAWSResources(mod, true));\n    } finally {\n        log.gc.enabled = false;\n        await mod.cleanup({ deleteResources: true, deleteCaches: true, gcTimeout: 0 });\n    }\n});\n\ntest.serial(title(\"aws\", \"garbage collects functions that are never called\"), async t => {\n    const mod = await faastAws(functions, {\n        gc: \"off\",\n        mode: \"queue\",\n        description: t.title,\n        maxRetries: 0\n    });\n    try {\n        await mod.cleanup({ deleteResources: false, gcTimeout: 0 });\n        const { FunctionName } = mod.state.resources;\n        const mod2 = await faastAws(functions, {\n            gc: \"force\",\n            retentionInDays: 0,\n            description: t.title,\n            _gcWorker: async (work, services) => {\n                switch (work.type) {\n                    case \"DeleteResources\":\n                        if (work.resources.FunctionName === FunctionName) {\n                            log.gc(`deleting resources for ${FunctionName}`);\n                            await defaultGcWorker(work, services);\n                        }\n                }\n            }\n        });\n\n        await mod2.cleanup({ gcTimeout: 0 });\n        // Don't fail if a log group exists because we didn't wait for its\n        // creation; it might be created by AWS after the cleanup occurs. The\n        // reason is that the log group will only be created if there's an\n        // invocation test, which only happens in the special case that the role\n        // was recently created. Which is true for the nightly testsuite but\n        // rarely elsewhere.\n        const { logGroupResult, ...resources } = await getAWSResources(mod, true);\n        await checkResourcesCleanedUp(t, resources);\n    } finally {\n        await mod.cleanup({ deleteResources: true, deleteCaches: true, gcTimeout: 0 });\n    }\n});\n\ntest.skip(title(\"aws\", \"garbage collection caching\"), async t => {\n    {\n        // Run a real gc so the build account doesn't accumulate garbage.\n        const mod = await faastAws(functions, { gc: \"force\", description: t.title });\n        await mod.cleanup({ gcTimeout: 0 });\n        t.is(await mod.state.gcPromise, \"done\");\n    }\n\n    {\n        // Test the in-memory cache that prevents gc from multiple faast.js\n        // instances from running at the same time.\n        const mod = await faastAws(functions, { description: t.title });\n        await mod.cleanup();\n        t.is(await mod.state.gcPromise, \"skipped\");\n    }\n\n    {\n        // Test the persistent cache that prevents gc from running too often\n        // even across processes.\n        clearLastGc();\n        const mod = await faastAws(functions, { description: t.title });\n        await mod.cleanup();\n        t.is(await mod.state.gcPromise, \"skipped\");\n    }\n});\n"]}