I'm trying to config my nginx-ingress with the following ConfigMap file:
apiVersion: v1
data:
  client-body-buffer-size: 32m
  client-max-body-size: 16m
  hsts: "true"
  proxy-body-size: 1g
  proxy-buffering: "false"
  proxy-read-timeout: "600"
  proxy-send-timeout: "600"
  server-tokens: "false"
  ssl-redirect: "false"
  upstream-keepalive-connections: "50"
  use-proxy-protocol: "true"
kind: ConfigMap
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","data":{"client-body-buffer-size":"32m","client-max-body-size":"16m","hsts":"true","proxy-body-size":"1g","proxy-buffering":"false","proxy-read-timeout":"600","proxy-send-timeout":"600","server-tokens":"false","ssl-redirect":"false","upstream-keepalive-connections":"50","use-proxy-protocol":"true"},"kind":"ConfigMap","metadata":{"annotations":{},"labels":{"app":"ingress-nginx"},"name":"nginx-configuration","namespace":"default"}}
  creationTimestamp: 2018-09-28T10:19:23Z
  labels:
    app: ingress-nginx
  name: nginx-configuration
  namespace: default
  resourceVersion: "65855983"
  selfLink: /api/v1/namespaces/default/configmaps/nginx-configuration
  uid: f88fe457-c307-11e8-b14b-42010a800076But for some reason at least client-max-body-size config is not working - it sets to defalt 1m.
I can clearly see that new config was applied successfully in GCP, but it has no effect. What can be the reason it's not working?
It looks like you are using the wrong option name for client-max-body-size.
I think you are looking for proxy-body-size which the documentation says to refer to NGINX's client_max_body_size.
So what you want is something like this:
apiVersion: v1
data:
  client-body-buffer-size: 32m
  proxy-body-size: 16m
  ...
  ...