MDN and Workers docs are enough

Constantin•12/8/23, 1:13 AM

huys, i'm a bit confused about how to setup the CF Actions for workers. In the docs it just says .yml file .. i added in the project root. noting happens in github interface.

Ddave MDN and Workers docs are enough

fernvenue•12/8/23, 1:13 AM

Thanks.

Constantin•12/8/23, 1:14 AM

if i move it inside .git/workflows/deploy.yml .. nothing happens

Constantin•12/8/23, 1:15 AM

- name: Deploy to Cloudflare Workers with Wrangler
  uses: cloudflare/wrangler-action@v3.3.2

name: Deploy

on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest
    name: Deploy
    steps:
      - uses: actions/checkout@v3
      - name: Deploy
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}

- name: Deploy to Cloudflare Workers with Wrangler
  uses: cloudflare/wrangler-action@v3.3.2

name: Deploy

on:
  push:
    branches:
      - main

jobs:
  deploy:
    runs-on: ubuntu-latest
    name: Deploy
    steps:
      - uses: actions/checkout@v3
      - name: Deploy
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}

this is how it looks

CConstantin if i move it inside .git/workflows/deploy.yml .. nothing happens

Cyb3r-Jak3•12/8/23, 1:15 AM

Should be

.github/workflows/deploy.yml

.github/workflows/deploy.yml

Constantin•12/8/23, 1:20 AM

great! thank you

Constantin•12/8/23, 1:21 AM

and for branching, is fine to deploy a new worker for each branch, right?

Constantin•12/8/23, 1:22 AM

i thoth that workers share the same model of branching like pages, but they are standalone entities, is that correct?

Cyb3r-Jak3•12/8/23, 1:39 AM

Yeah you could create a new worker for each branch. Just have to remember to delete them after merging so you don't run out of workers

Constantin•12/8/23, 1:54 AM

they don't get overwritted ?

Constantin•12/8/23, 1:54 AM

i mean, how can downtimes can be avoided

Cyb3r-Jak3•12/8/23, 1:56 AM

If the workers share the same name then yeah it will be overwritten

Constantin•12/8/23, 1:57 AM

great then!

Constantin•12/8/23, 1:57 AM

thank you @Cyb3r-Jok3

Constantin•12/8/23, 2:45 AM

is there a way to block wrangler deploy command to be used locally?

monkev_see_monkev_do•12/8/23, 5:07 AM

Has anyone ever had the Worker Preview [in the online UI] not work? Troubleshooting this issue, but it’s very odd

Unsmart•12/8/23, 5:07 AM

What do you mean by "not work"

UUnsmart What do you mean by "not work"

monkev_see_monkev_do•12/8/23, 5:08 AM

It’s just not showing the URL, for example if you type in Google.com, you would expect the site to load.

monkev_see_monkev_do•12/8/23, 5:11 AM

James•12/8/23, 7:37 AM

How do you enable Durable Objects? The link is useless.

Erisa•12/8/23, 8:57 AM

Go to a Worker in your dashboard, scroll down on the overview and there should be a Durable Objects section with an enable button

kian•12/8/23, 2:05 PM

The vast majority of that isn't in workerd

kian•12/8/23, 2:06 PM

You'd see the

.h

.h

stuff and maybe some

workerd

workerd

specific overrides, but most of it is defined in Cloudflare's internal repository.

kian•12/8/23, 2:09 PM

There's weird things like requests can have 6 concurrent subrequests, but your isolate does have an overall limit (which you can hit with enough rps but not reading response bodies).

kian•12/8/23, 2:09 PM

It leads to weird scenarios where you're reading the response body even if to discard it instantly (i.e not assigning it to a variable).

kian•12/8/23, 2:11 PM

You can see the same sort of behaviour with Service Bindings

kian•12/8/23, 2:11 PM

If you make a call to a bound service but don't read the body, the bound Worker will show

Canceled

Canceled

for that request in tail.

kian•12/8/23, 2:12 PM

Since they're effectively held open, in the event you do consume the body later, you can hit a limit for that isolate.

kian•12/8/23, 2:13 PM

As for resources on a bound Worker, yeah it's in the same isolate so memory is the primary concern as you get a refreshed CPU limit (i.e on Bundled you get another 50ms to spend in that bound Worker).

kian•12/8/23, 2:14 PM

Exceeding resources tends to make the isolate go

but I haven't tested it with a bound Worker.

Hello, I’m Allie!•12/8/23, 2:14 PM

Is there a method for black holing a Response Body?

kian•12/8/23, 2:15 PM

You'd want to store an ID in the global scope of the calling Worker as well as the ID of that Cloudflare server (call

https://cloudflare.com/cdn-cgi/trace

https://cloudflare.com/cdn-cgi/trace

and store the

fl

fl

line), call a bound Worker that exceeds resource limits & hit the Worker until you see the same fl line. If your id is different, it's a new isolate.

kian•12/8/23, 2:15 PM

The

fl

fl

part is because your Worker is a per-server thing, so you might hit two different servers in the same colo which are different isolates.

kian•12/8/23, 2:16 PM

That's the primary reason that trying to reason about memory consumption, or using global variables for state, is pretty difficult on Workers.

kian•12/8/23, 2:16 PM

Your connection might have a keep-alive to that server (i.e a browser) or you might hit a new server everytime (i.e hard refresh, spamming it w/ curl, etc)

kian•12/8/23, 2:17 PM

I've had isolates that sit idle on a given server for 22+ hours since their last request during off hours.

kian•12/8/23, 2:19 PM

I believe the isolate would hang around, just that request is cancelled.

kian•12/8/23, 2:20 PM

1101 (exception) only kills the request, 1102 (resources) kills the isolate.

kian•12/8/23, 2:23 PM

When the client disconnects, all tasks associated with that client request are canceled. Use event.waitUntil() to delay cancellation for another 30 seconds or until the promise passed to waitUntil() completes.

kian•12/8/23, 2:24 PM

It seems so

kian•12/8/23, 2:24 PM

I don't know if that means disconnects as in the response body has been fully read, or a mid-request disconnect.

- name: Deploy to Cloudflare Workers with Wrangler uses: cloudflare/wrangler-action@v3.3.2 name: Deploy on: push: branches: - main jobs: deploy: runs-on: ubuntu-latest name: Deploy steps: - uses: actions/checkout@v3 - name: Deploy uses: cloudflare/wrangler-action@v3 with: apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}

MDN and Workers docs are enough

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