Function spawnSentinelNode

packages/test-utils/lib/dockers.ts:710–747

(
  dockerConfigs: RedisServerDockerOptions,
  serverArguments: Array<string>,
  masterPort: number,
  sentinelName: string,
  tmpDir: string,
  password?: string,
)

export async function spawnSentinelNode(
  dockerConfigs: RedisServerDockerOptions,
  serverArguments: Array<string>,
  masterPort: number,
  sentinelName: string,
  tmpDir: string,
  password?: string,
) {
  const port = (await portIterator.next()).value;

  let sentinelConfig = `port ${port}
sentinel monitor ${sentinelName} 127.0.0.1 ${masterPort} 2
sentinel down-after-milliseconds ${sentinelName} 500
sentinel failover-timeout ${sentinelName} 1000
`;
  if (password !== undefined) {
    sentinelConfig += `requirepass ${password}\n`;
    sentinelConfig += `sentinel auth-pass ${sentinelName} ${password}\n`;
  }

  const dir = fs.mkdtempSync(tmpDir);
  fs.writeFile(`${dir}/redis.conf`, sentinelConfig, err => {
    if (err) {
      console.error("failed to create temporary config file", err);
    }
  });

  return await spawnRedisServerDocker(
    {
      image: dockerConfigs.image,
      version: dockerConfigs.version,
      mode: "sentinel",
        mounts: [`${dir}/redis.conf:/redis/config/node-sentinel-1/redis.conf`],
        port: port,
    },
    serverArguments,
  );
}