azabrha opened a new issue, #12654:
URL: https://github.com/apache/apisix/issues/12654
### Description
# Issue: Unable to Increase Client Max Body Size in APISIX Docker Compose
Setup Leads to Sync Configuration Error in ADC
## Description
I'm encountering an error when trying to sync configurations using ADC
(APISIX Dashboard CLI) with APISIX running in a Docker Compose setup. The error
indicates that the request body size exceeds the maximum allowed limit (2710395
> 1572864). I've attempted to increase the `client_max_body_size` in the APISIX
configuration, but it doesn't resolve the issue.
This prevents me from syncing larger configurations, and I need guidance on
how to properly increase this limit in a Docker Compose environment.
## Environment
- OS: Linux Ubuntu 22.04
- APISIX Version: 3.12.0-debian (using Docker image
`apisix:${APISIX_IMAGE_TAG:-3.12.0-debian}`)
- ADC Version: 0.20.0 (via `adc -version`)
- etcd Version: bitnami/etcd:3.5.11
- Setup: Docker Compose
## Steps to Reproduce
1. Set up APISIX with Docker Compose using the default configuration.
2. Attempt to add the following to the APISIX config.yaml:
```
nginx_config:
http:
client_max_body_size: 10m
```
3. Restart the APISIX container.
4. Run ADC to sync a configuration that results in a request body larger
than ~1.5MB (e.g., with multiple services/routes).
5. Observe the error in ADC and APISIX logs.
## Expected Behavior
The `client_max_body_size` setting should take effect, allowing larger
request bodies during configuration sync.
## Actual Behavior
The limit remains at 1572864 bytes, and the sync fails with the following
errors:
### ADC Error Log
```
[12:58:33 PM] [ADC] › ▶ start Load local configuration
[12:58:33 PM] [ADC] › ▶ start Load ......./o2a_v1.0.0.yaml
[12:58:33 PM] [ADC] › ✔ success Load ......./o2a_v1.0.0.yaml
[12:58:33 PM] [ADC] › ▶ start Load ......./global-rules.yaml
[12:58:33 PM] [ADC] › ✔ success Load ......./global-rules.yaml
[12:58:33 PM] [ADC] › ▶ start Merge local configurations
[12:58:33 PM] [ADC] › ✔ success Merge local configurations
[12:58:33 PM] [ADC] › ▶ start Resolve value variables
[12:58:33 PM] [ADC] › ✔ success Resolve value variables
[12:58:33 PM] [ADC] › ✔ success Load local configuration
[12:58:33 PM] [ADC] › ▶ start Lint configuration
[12:58:33 PM] [ADC] › ✔ success Lint configuration
[12:58:33 PM] [ADC] › ▶ start Load remote configuration
[12:58:33 PM] [ADC] › ▶ start Fetch all configuration
[12:58:33 PM] [APISIX] › ▶ start Fetch stream_routes
[12:58:33 PM] [APISIX] › ✔ success Fetch stream_routes
[12:58:33 PM] [APISIX] › ▶ start Fetch services
[12:58:33 PM] [APISIX] › ✔ success Fetch services
[12:58:33 PM] [APISIX] › ▶ start Fetch routes
[12:58:33 PM] [APISIX] › ✔ success Fetch routes
[12:58:33 PM] [APISIX] › ▶ start Fetch consumers
[12:58:33 PM] [APISIX] › ✔ success Fetch consumers
[12:58:33 PM] [APISIX] › ▶ start Fetch ssls
[12:58:33 PM] [APISIX] › ✔ success Fetch ssls
[12:58:33 PM] [APISIX] › ▶ start Fetch plugin_configs
[12:58:33 PM] [APISIX] › ✔ success Fetch plugin_configs
[12:58:33 PM] [APISIX] › ▶ start Fetch global_rules
[12:58:33 PM] [APISIX] › ✔ success Fetch global_rules
[12:58:33 PM] [APISIX] › ▶ start Fetch upstreams
[12:58:33 PM] [APISIX] › ✔ success Fetch upstreams
[12:58:33 PM] [APISIX] › ▶ start Fetch plugin_metadata
[12:58:33 PM] [APISIX] › ✔ success Fetch plugin_metadata
[12:58:33 PM] [ADC] › ✔ success Fetch all configuration
[12:58:33 PM] [ADC] › ✔ success Load remote configuration
[12:58:33 PM] [ADC] › ▶ start Diff configuration
[12:58:33 PM] [ADC] › ✔ success Diff configuration
[12:58:33 PM] [ADC] › ▶ start Sync configuration
[12:58:33 PM] [ADC] › ✖ error Sync configuration
[12:58:33 PM] [ADC] › ✖ fatal Error: invalid request body: request size
2710395 is greater than the maximum size 1572864 allowed
at dist/apps/cli/main.js:30:260515
at Observable.init [as _subscribe] (dist/apps/cli/main.js:9:246279)
at Observable._trySubscribe (dist/apps/cli/main.js:9:163330)
at dist/apps/cli/main.js:9:163222
at Object.exports.errorContext (dist/apps/cli/main.js:9:178170)
at Observable.subscribe (dist/apps/cli/main.js:9:163047)
at dist/apps/cli/main.js:9:291359
at OperatorSubscriber._this._error (dist/apps/cli/main.js:9:184433)
at OperatorSubscriber.Subscriber.error (dist/apps/cli/main.js:9:166431)
at OperatorSubscriber.Subscriber._error (dist/apps/cli/main.js:9:166893)
```
### APISIX Container Error Log
```
2025/10/07 13:01:02 [error] 49#49: *16716 [lua] init.lua:206: handler():
failed to read request body: request size 2710395 is greater than the maximum
size 1572864 allowed, client: xxxxx, server: , request: "PUT
/apisix/admin/services/e0e87326fc26eae5dd81f489ab74882b41bdd796 HTTP/1.1",
host: "localhost:9180"
```
## Additional Context
- I've tried setting `client_max_body_size: 10m` in the `nginx_config.http`
section of config.yaml and restarting the container, but the limit doesn't
change.
- The request is being made to the admin API endpoint
(`/apisix/admin/services/...`).
- Is there a specific way to override this in Docker Compose? Perhaps via
environment variables, custom Nginx config, or another method?
Any help on increasing this limit would be appreciated!
### Environment
## Environment
- OS: Linux Ubuntu 22.04
- APISIX Version: 3.12.0-debian (using Docker image
`apisix:${APISIX_IMAGE_TAG:-3.12.0-debian}`)
- ADC Version: 0.20.0 (via `adc -version`)
- etcd Version: bitnami/etcd:3.5.11
- Setup: Docker Compose
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