Allow azd up to use host network during docker build

[surajssd]

Right now there is no way to tell azd up to use --network=host when it does docker build behind the scene. It would great if azd added a way for the users to ask it to use host network when doing the docker build.

---

Right now my workaround is to get create a script called docker and put it into the PATH before the actual docker binary. And the script does this:

#!/usr/bin/env bash

set -euo pipefail

DOCKER_BIN="/usr/bin/docker"

# Check if we are calling docker build only then we will use the --network=host flag
if [ "$1" == "build" ]; then
    shift
    exec "${DOCKER_BIN}" build --network=host "$@"
fi

exec "${DOCKER_BIN}" "$@"

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The flag would ideally go in this list:

azure-dev/cli/azd/pkg/tools/docker/docker.go

Lines 84 to 88 in 9e65413

	args := []string{
	"build",
	"-f", dockerFilePath,
	"--platform", platform,
	}