Deployment_UnstructuredStorage_V3.js

const SocialNetworkProxy = artifacts.require('SocialNetworkProxy')
const SocialNetworkV1 = artifacts.require('SocialNetworkV1')
const SocialNetworkV2 = artifacts.require('SocialNetworkV2')

module.exports = (deployer, network, accounts) => {
  deployer.then(async () => {
    /***********************************
     * 1. INITIAL DEPLOYMENT
     ***********************************/
    let proxy, socialNetworkV1, proxySocialNetwork

    // 1. Deploy SocialNetworkProxy
    proxy = await deployer.deploy(SocialNetworkProxy)

    // 2. Deploy SocialNetworkV1 contract
    socialNetworkV1 = await deployer.deploy(SocialNetworkV1)

    // 3. Link SocialNetworkProxy with SocialNetworkV1 contract
    await proxy.upgradeTo(socialNetworkV1.address)

    // 4. Update ImageURL via Proxy
    proxySocialNetwork = SocialNetworkV1.at(proxy.address)
    await proxySocialNetwork.setName('TanookiChats')
    await proxySocialNetwork.setImageUrl('http://tanookilabs.com/images/tanooki-small@2x-0500fc1e.png')

    // /***********************************
    //  * 2. UPGRADE TO SOCIALNETWORKV2
    //  ***********************************/
    let socialNetworkV2

    // 1. Deploy SocialNetworkV2 contract
    socialNetworkV2 = await deployer.deploy(SocialNetworkV2)

    // 2. Upgrade proxy to SocialNetworkV2
    await proxy.upgradeTo(socialNetworkV2.address)

    // 3. Add an account as an admin
    proxySocialNetwork = SocialNetworkV2.at(proxy.address)
    await proxySocialNetwork.addAdminAccount(accounts[2])
  })
}