Managed DigitalOcean Redis instance giving Redis AbortError - node.js

Question

I setup managed redis and managed postgres on digital ocean. Digital ocean gave me a .crt file, I don't know what to do with this, so didn't do anything with it. Can this be the root of the problem below:
Or do I have to allow docker container to reach outside of the container on the rediss protocol?
I dockerized a node app and then put this container onto my droplet. I have my droplet and managed redis and postgres in same region (SFO2). It connects to redis using this url:
url: 'rediss://default:REMOVED_THIS_PASSWORD#my-new-app-sfo2-do-user-5053627-0.db.ondigitalocean.com:25061/0',
I then did ran my docker container with docker run.
It then gives me error:
node_redis: WARNING: You passed "rediss" as protocol instead of the "redis" protocol!
events.js:186
throw er; // Unhandled 'error' event
^
AbortError: Connection forcefully ended and command aborted. It might have been processed.
at RedisClient.flush_and_error (/opt/apps/mynewapp/node_modules/redis/index.js:362:23)
at RedisClient.end (/opt/apps/mynewapp/node_modules/redis/lib/extendedApi.js:52:14)
at RedisClient.onPreConnectionEnd (/opt/apps/mynewapp/node_modules/machinepack-redis/machines/get-connection.js:157:14)
at RedisClient.emit (events.js:209:13)
at RedisClient.connection_gone (/opt/apps/mynewapp/node_modules/redis/index.js:590:14)
at Socket.<anonymous> (/opt/apps/mynewapp/node_modules/redis/index.js:293:14)
at Object.onceWrapper (events.js:298:28)
at Socket.emit (events.js:214:15)
at endReadableNT (_stream_readable.js:1178:12)
at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted 'error' event on RedisClient instance at:
at /opt/apps/mynewapp/node_modules/redis/index.js:310:22
at Object.callbackOrEmit [as callback_or_emit] (/opt/apps/mynewapp/node_modules/redis/lib/utils.js:89:9)
at Command.callback (/opt/apps/mynewapp/node_modules/redis/lib/individualCommands.js:199:15)
at RedisClient.flush_and_error (/opt/apps/mynewapp/node_modules/redis/index.js:374:29)
at RedisClient.end (/opt/apps/mynewapp/node_modules/redis/lib/extendedApi.js:52:14)
[... lines matching original stack trace ...]
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
code: 'NR_CLOSED',
command: 'AUTH',
args: [ 'REMOVED_I_DONT_KNOW_IF_THIS_IS_SENSITIVE' ]

Answer 1

The redis protocol is different from rediss because the latter uses TLS connection. DigitalOcean Managed Redis requires the connections to be made over TLS, so you have to use rediss. However, I couldn't find any info about the TLS certificate provided by DigitalOcean to connect to the Managed Redis service.
Based on your error message, I presumed you're using this redis package. If that's the case, you can pass empty TLS object option in the connection string like so:
const Redis = require('redis')
const host = 'db-redis.db.ondigitalocean.com'
const port = '25061'
const username = 'user'
const password = 'secret'
const url = `${username}:${password}#${host}:${port}`
const client = Redis.createClient(url, {tls: {}})
Further reading/source:
SSL connections arrive for Redis on Compose
Connecting to IBM Cloud Databases for Redis from Node.js

Answer 2

I solved this. Below are snippets from config/env/production.js
Sockets
For sockets, to enable rediss you have to pass in all options through adapterOptions like this:
sockets: {
onlyAllowOrigins: ['https://my-website.com'],
// pass in as adapterOptions so it gets through to redis-adapter
// as i need it "rediss" but this url is not supported i get an error.
// so i need to pass in `tls` empty object. and i see he moves things into
// `adapterOptions` here here - https://github.com/balderdashy/sails-hook-sockets/blob/master/lib/configure.js#L128
adapterOptions: {
user: 'username',
pass: 'password',
host: 'host',
port: 9999,
db: 2, // pick a number
tls: {},
},
adapter: '#sailshq/socket.io-redis',
},
Session
For session, pass tls: {} empty object to config:
session: {
pass: 'password',
host: 'host',
port: 9999,
db: 1, // pick a number not used by sockets
tls: {},
cookie: {
secure: true,
maxAge: 24 * 60 * 60 * 1000, // 24 hours
},
},