Colima does not auto-replace gateway address for proxy variables in docker daemon.json

[rteeling-evernorth]

Description

When running behind a corporate proxy that runs on127.0.0.1:9000, colima automatically translates the proxy env vars to 192.168.5.2:9000, but does not translate the proxy urls for /etc/docker/daemon.json

Version

colima version 0.7.5
git commit: 1588c06

runtime: docker
arch: aarch64
client: v27.3.1
server: v27.1.1
limactl version 0.23.2
qemu-img version 9.1.0
Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers

Operating System

• macOS Intel <= 13 (Ventura)
• macOS Intel >= 14 (Sonoma)
• Apple Silicon <= 13 (Ventura)
• Apple Silicon >= 14 (Sonoma)
• Linux

Output of colima status

> colima status
INFO[0000] colima is running using macOS Virtualization.Framework
INFO[0000] arch: aarch64
INFO[0000] runtime: docker
INFO[0000] mountType: virtiofs
INFO[0000] socket: unix:///Users/c43990/.colima/default/docker.sock

Reproduction Steps

1. Set http proxy variables to http://127.0.0.1:9000
2. colima start --vm-type=vz --vz-rosetta=true
3. colima ssh -- env | grep -i will reveal env vars have the translated proxy url (http://192.165.5.2:9000)
4. colima ssh -- cat /etc/docker/daemon.json to read daemon.json file

Expected behaviour

Expected /etc/docker/daemon.json

{
  "exec-opts": [
    "native.cgroupdriver=cgroupfs"
  ],
  "features": {
    "buildkit": true
  },
  "proxies": {
    "http-proxy": "http://192.168.5.2:9000",
    "https-proxy": "http://192.168.5.2:9000",
    "no-proxy": "localhost,192.168.5.2"
  }
}

Actual /etc/docker/daemon.json

{
  "exec-opts": [
    "native.cgroupdriver=cgroupfs"
  ],
  "features": {
    "buildkit": true
  },
  "proxies": {
    "http-proxy": "http://127.0.0.1:9000",
    "https-proxy": "http://127.0.0.1:9000",
    "no-proxy": "REDACTED"
  }

Additional context

The code that should do this resides here:

colima/environment/container/docker/daemon.go

Lines 34 to 46 in a58166e

	if vars := d.proxyEnvVars(env); !vars.empty() {
	proxyConf := map[string]any{}
	if vars.http != "" {
	proxyConf["http-proxy"] = vars.http
	}
	if vars.https != "" {
	proxyConf["https-proxy"] = vars.https
	}
	if vars.no != "" {
	proxyConf["no-proxy"] = vars.no
	}
	conf["proxies"] = proxyConf
	}

#1040 is an effective workaround, but it would be much more convenient and user friendly to set this automatically