brigade-4.js

const kubernetes = require('@kubernetes/client-node');
const yaml = require('js-yaml');
const ulid = require('ulid');
const crypto = require('crypto');

const k8sClient = kubernetes.Config.defaultClient();
const BRIGADE_NAMESPACE = 'brigade';
const GITHUB_API_URL = 'https://api.github.com/repos';

const deployProjects = async (environmentName) => {
  const environmentConfigMap = await k8sClient.readNamespacedConfigMap(
    `environment-config-${environmentName}`, BRIGADE_NAMESPACE,
  );
  const environmentsConfig = yaml.safeLoad(
    environmentConfigMap.body.data.environment,
  );
  for (const key of Object.keys(environmentsConfig)) {
    const projectConfig = environmentsConfig[key];

    const url = `${GITHUB_API_URL}/${projectConfig.org}/${projectConfig.repo}`;
    const tagUrl = `${url}/git/refs/tags/${projectConfig.tag}`;
    const response = await fetch(
      tagUrl, {
        method: 'GET',
        headers: {
          'Content-Type': 'application/json',
          Authorization: `token ${process.env.BRIGADE_REPO_AUTH_TOKEN}`,
        },
      },
    );

    if (!response.ok && response.status === 404) {
      console.log(
        `'${projectConfig.tag}' tag not found in `
        + `${projectConfig.org}/${projectConfig.repo} repository`,
      );
    } else {
      console.log(
        `Triggering deployment of '${projectConfig.repo}' for tag '${projectConfig.tag}'`,
      );
      const commit = await response.json();
      const gitSha = commit.object.sha;

      const projectSha = crypto.createHash('sha256').update(
        `${projectConfig.org}/${projectConfig.repo}`,
      ).digest('hex').substring(0, 54);
      const projectId = `brigade-${projectSha}`;
      const buildId = ulid().toLowerCase();
      const buildName = `environment-worker-${buildId}`;
      const deployEventSecret = new kubernetes.V1Secret();
      deployEventSecret.metadata = new kubernetes.V1ObjectMeta();
      deployEventSecret.metadata.name = buildName;
      deployEventSecret.metadata.labels = {
        build: buildId,
        component: 'build',
        heritage: 'brigade',
        project: projectId,
      };
      deployEventSecret.type = 'brigade.sh/build';
      deployEventSecret.stringData = {
        build_id: buildName,
        build_name: buildName,
        commit_id: gitSha,
        commit_ref: projectConfig.tag,
        event_provider: 'brigade-cli',
        event_type: 'exec',
        log_level: 'log',
        payload: `{"name": "${environmentName}"}`,
        project_id: projectId,
        script: '',
      };
      await k8sClient.createNamespacedSecret(BRIGADE_NAMESPACE, deployEventSecret);
    }
  }
};