Scaling CI / CD mono repository

Given

1. Monorepository based on Lerna and Yarn workspaces .
2. A dozen applications, and dozens of common packages for TypeScript, Angular, NodeJS.
3. High coverage with tests of various stripes (modular, integration, e2e).
4. and Atlassian Bamboo CI / CD .

Task

Speed ​​up existing pipelines by 2 times (up to at least half an hour). Along the way, increasing the stability to 90%.

Looking ahead, I will say that the required indicators have been achieved.

It was

For incremental build lerna filter options :

lerna run build:packages --since --include-merged-tags --include-dependencies

lerna publish (JFrog):

# Master
lerna publish patch --yes
# Feature
lerna publish prepatch --yes --no-push --preid "${PREID}"

pipeline, elastic .

. (~1).

, (), JFrog , , pipeline (~70%).

.

—

— production image .

.

— production image ( , )

— .

, .

node_modules ~1.5Gb ( ). image, AWS ECR, .

"" ("") , , workspaces package.json CI.

#!/usr/bin/env node

const { spawnSync } = require('child_process');
const { existsSync, promises: { readFile, writeFile } } = require('fs');
const { join, dirname, relative, normalize } = require('path');

const PACK_JSON_PATH = './package.json';

(async (apps) => {
    const packJSON = JSON.parse((await readFile(PACK_JSON_PATH)).toString());

    spawnSync('yarn', ['global', 'add', 'lerna'], { shell: true });

    const locations = listPackages(apps);

    const [someLocation] = locations;
    const basePath = findBasePath(someLocation);

    // All paths should be relative to monorepo root
    const workspaces = locations.map((loc) => normalize(relative(basePath, loc)));

    packJSON.workspaces.packages = workspaces;

    const packJSONStr = JSON.stringify(packJSON, undefined, 2);
    await writeFile(PACK_JSON_PATH, `${packJSONStr}\n`);
})(
    process.argv.slice(2),
);

function listPackages(apps = []) {
    const filterOptions = apps.flatMap((app) => ['--scope', app]);
    const { stdout } = spawnSync(
        'lerna',
        ['ls', '-pa', '--include-dependencies', ...filterOptions],
        { shell: true },
    );
    return String(stdout).split(/[\r\n]+/).filter(Boolean);
}

function findBasePath(packageLocation) {
    return existsSync(join(packageLocation, 'lerna.json'))
        ? packageLocation
        : findBasePath(dirname(packageLocation));
}

"" ( changed) .

node_modules 3 .

Fixed mode

Lerna fixed mode, lerna publish pipeline.

?

lerna changed

lerna changed -a --include-merged-tags

, latest image :

#!/usr/bin/env bash

APP=$1

lerna-focus.js "${APP}"

function nothing_changed() {
    [[ -z "$(lerna changed -a --include-merged-tags || true)" ]]
}

function pull_latest_image() {...}
function push_latest_image() {...}
function tag_latest_with_version() {...}

pull_latest_image

if nothing_changed; then
    tag_latest_with_version
    exit
fi

build-app.sh "${APP}"

if is-master.sh; then
    push_latest_image
fi

?

Nx: Extensible Dev Tools for Monorepos. .

, " " (Angular, Jest, ElasticSearch, Bamboo CI).