🐛 BUG: wrangler pages dev hangs when run in docker #6280
Description
Which Cloudflare product(s) does this pertain to?
Wrangler
What version(s) of the tool(s) are you using?
3.65.0
What version of Node are you using?
22.4.1
What operating system and version are you using?
Linux Debian 12 bookworm
Describe the Bug
Observed behavior
I'm using wrangler to run playwright tests locally against a project that will be hosted by Cloudflare Pages. Everything works fine in Mac OS, but when the same code runs in my CI (using docker), wrangler hangs and never returns a response to any requests. Running the same command locally within docker gave me the same result as on my CI.
There is no logs indicating that a request is received by wrangler, and curl just hangs until stopped manually.
In my actual project I use the Playwright official docker image mcr.microsoft.com/playwright:v1.45.1-jammy, but I was able to reproduce it with the node image node:22 without any of my code.
I also tried switching to Cloudflare Workers instead with some dynamic content, but the result was the same.
Expected behavior
For wrangler to either return a response, or to throw an error if something is missing.
Steps to reproduce
- Create a
Dockerfilelocally and copy this content within it.
FROM node:22
RUN mkdir /dist
RUN echo "<html><body>Hello world</body></html>" > /dist/index.html
RUN npm i -g wrangler
ENTRYPOINT [ "wrangler", "pages", "dev", "/dist", "--port", "3000" ]
- Open a terminal, navigate to the folder where the
Dockerfileis, and create a docker container.
docker build --tag wrangler_reproduction .
docker run --name wrangler wrangler_reproduction- Open a new tab in the same folder and open a shell in the docker container.
docker exec -it wrangler /bin/bash
# In the docker shell
curl -v http://localhost:3000/index.html- In my case, the curl request just hangs. You can further inspect the wrangler logs to see that there's nothing of interest within it. My own log has messages around missing
.envand.dev.varsfile, but they're debug messages and adding empty ones didn't help.
more /root/.config/.wrangler/logs/ # press tab to auto-complete to the latest log filePlease provide a link to a minimal reproduction
No response
Please provide any relevant error logs
--- 2024-07-17T21:20:13.038Z debug
🪵 Writing logs to "/root/.config/.wrangler/logs/wrangler-2024-07-17_21-20-12_835.log"
---
--- 2024-07-17T21:20:13.038Z debug
Failed to load .env file ".env": Error: ENOENT: no such file or directory, open '.env'
at Object.openSync (node:fs:562:18)
at Object.readFileSync (node:fs:446:35)
at tryLoadDotEnv (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:159217:72)
at loadDotEnv (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:159226:12)
at /usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:202152:20
at /usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:165885:16
at maybeAsyncResult (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:164106:44)
at /usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:165884:14
at /usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:164093:22
at Array.reduce (<anonymous>) {
errno: -2,
code: 'ENOENT',
syscall: 'open',
path: '.env'
}
---
--- 2024-07-17T21:20:14.642Z log
⛅️ wrangler 3.65.0
-------------------
---
--- 2024-07-17T21:20:14.643Z debug
No experimental flag store instantiated
---
--- 2024-07-17T21:20:14.643Z debug
Attempted to use flag "JSON_CONFIG_FILE" which has not been instantiated
---
--- 2024-07-17T21:20:14.719Z warn
▲ [WARNING] No compatibility_date was specified. Using today's date: 2024-07-17.
❯❯ Add one to your wrangler.toml file: compatibility_date = "2024-07-17", or
❯❯ Pass it in your terminal: wrangler pages dev [<DIRECTORY>] --compatibility-date=2024-07-17
See https://developers.cloudflare.com/workers/platform/compatibility-dates/ for more information.
---
--- 2024-07-17T21:20:14.720Z log
No Functions. Shimming...
---
--- 2024-07-17T21:20:14.743Z debug
Failed to load .env file "/.dev.vars": Error: ENOENT: no such file or directory, open '/.dev.vars'
at Object.openSync (node:fs:562:18)
at Object.readFileSync (node:fs:446:35)
at tryLoadDotEnv (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:159217:72)
at loadDotEnv (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:159226:12)
at getVarsForDev (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:198833:18)
at getBindings (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:208793:10)
at getResolvedBindings (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:208663:20)
at getBindingsAndAssetPaths (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:208693:15)
at getDevReactElement (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:208326:40)
at startDev (/usr/local/lib/node_modules/wrangler/wrangler-dist/cli.js:208393:60) {
errno: -2,
code: 'ENOENT',
syscall: 'open',
path: '/.dev.vars'
}
---
--- 2024-07-17T21:20:14.745Z debug
No folder available to cache configuration
---
--- 2024-07-17T21:20:14.748Z debug
Metrics dispatcher: Dispatching disabled - would have sent {"type":"event","name":"run dev","properties":{"local":true,"usesTypeScript":true}}.
---
--- 2024-07-17T21:20:14.827Z log
⎔ Starting local server...
---
--- 2024-07-17T21:20:15.123Z log
⎔ Reloading local server...
---
--- 2024-07-17T21:20:15.254Z debug
Metrics dispatcher: Dispatching disabled - would have sent {"type":"event","name":"run pages dev","properties":{}}.
---