Live Auto Reload of golang apps - Cosmtrek/air

I am trying to auto-reload golang apps inside docker. I am using cosmtrek/air for doing it and it seems to be fine in my windows 10 machine. But when I am using docker for doing it, the code is not rebuilding.
Here is the file structure

-cmd
 -api
  -main.go
.air.toml
docker-compose.dev.yml
Dockerfile.dev
go.mod
go.sum

This is my dockerfile

FROM golang:1.18.3-alpine3.15

WORKDIR /app

COPY go.mod go.sum /app/

RUN go mod download && go mod verify

RUN go install github.com/cosmtrek/air@latest

COPY ./ /app/

CMD "air"

Here is my docker-compose.dev.yml file

version: '3.8'
services:
  backend:
    container_name: go-backend-test
    build: 
      context: .
      dockerfile: ./Dockerfile.dev
    volumes:
      - ./:/app

This is the output I get in the logs

The issue is if I change anything in the main.go or any go files, the logs are not getting updating with the new code even through I have sh into the docker-container where the volumes are getting updating. Its seems to be not rebuilding. However it works fine and rebuilds in my windows machine.
This is my .air.toml file

root = "."
testdata_dir = "testdata"
tmp_dir = "tmp"

[build]
  args_bin = []
  bin = "tmp/main.exe"
  cmd = "go build -o ./tmp/main.exe ./cmd/api/."
  delay = 1000
  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
  exclude_file = []
  exclude_regex = ["_test.go"]
  exclude_unchanged = false
  follow_symlink = false
  full_bin = ""
  include_dir = []
  include_ext = ["go", "tpl", "tmpl", "html"]
  kill_delay = "0s"
  log = "build-errors.log"
  send_interrupt = false
  stop_on_error = true

[color]
  app = ""
  build = "yellow"
  main = "magenta"
  runner = "green"
  watcher = "cyan"

[log]
  time = false

[misc]
  clean_on_exit = true

[screen]
  clear_on_rebuild = true

Just burning my head on the topic all day. Thanks in advance for ideas!

Your code is okay.

The problem is with the technology docker uses for file sharing between a host system and containers.

I have had the same issues on mac when tried to use not the Docker Desktop but an alternative like Rancher which even uses docker CLI via moby. When I switched back to the original Docker Desktop which uses gRPC FUSE, osxfs, and VirtioFS — with all of them worked like a charm.

Try with

> bin = "./tmp/main.exe

instead of

> bin = "tmp/main.exe"

Hope that this will help you.