https://discord.com/channels/707636530424053791/709803368318632038/964094860237885451

azure_cli_with_auth_cache.cue

// $ dagger do -p azure_cli_with_auth_cache.cue run --log-format=plain
// 11:10AM INF actions.run.script._write | computing
// 11:10AM INF actions.auth._dag."0"._dag."0"._op | computing
// 11:10AM INF actions.auth._dag."1".script._write | computing
// 11:10AM INF actions.run.script._write | completed    duration=0s
// 11:10AM INF actions.auth._dag."1".script._write | completed    duration=100ms
// 11:10AM INF actions.auth._dag."0"._dag."0"._op | completed    duration=100ms
// 11:10AM INF actions.auth._dag."0"._dag."1"._exec | computing
// 11:10AM INF actions.auth._dag."0"._dag."1"._exec | completed    duration=0s
// 11:10AM INF actions.auth._dag."1"._exec | computing
// 11:10AM INF actions.auth._dag."1"._exec | completed    duration=200ms
// 11:10AM INF actions.run._exec | computing
// 11:10AM INF actions.auth._dag."1"._exec | #6 0.136 simulate az command that will populate /azure/config
// 11:10AM INF actions.run._exec | completed    duration=200ms
// 11:10AM INF actions.run._exec | #7 0.109 read what was written to /azure/config in the auth action:
// 11:10AM INF actions.run._exec | #7 0.110 az login output

// $ dagger do -p azure_cli_with_auth_cache.cue brk --log-format=plain
// 11:26AM INF actions.brk.rover._op | computing
// 11:26AM INF actions.brk.rover._op | completed    duration=600ms
// 11:26AM INF actions.brk.az_login._exec | computing
// 11:26AM INF actions.brk.az_login._exec | completed    duration=100ms
// 11:26AM INF actions.brk.az_account_show._exec | computing
// 11:26AM INF actions.brk.az_account_show._exec | #4 0.073 az login --service-principal -u xxx -p xxx --tenant xxx
// 11:26AM INF actions.brk.az_account_show._exec | completed    duration=100ms
package azure_cli_with_auth_cache

import (
	"dagger.io/dagger"
	"dagger.io/dagger/core"
	"universe.dagger.io/alpine"
	"universe.dagger.io/bash"
	"universe.dagger.io/docker"
)

dagger.#Plan & {
	_azureCache: "/root/.azure": {
		dest:     "/root/.azure"
		type:     "cache"
		contents: core.#CacheDir & {
			id: "azureCache"
		}

	}
	actions: {
		auth: docker.#Build & {
			steps: [
				alpine.#Build & {
					packages: {
						bash: {}
					}
				},
				bash.#Run & {
					mounts: _azureCache
					script: contents: #"""
						echo 'simulate az command that will populate /root/.azure'
						echo 'az login output' > /root/.azure/echo
						"""#
				},
			]
		}

		run: bash.#Run & {
			input:  auth.output
			mounts: _azureCache
			script: contents: #"""
				echo 'read what was written to /root/.azure in the auth action:'
				cat /root/.azure/echo
				"""#
		}

		brk: {
			rover: docker.#Pull & {
				source: "aztfmod/rover:1.1.6-2202.2503"
			}

			az_login: docker.#Run & {
				input: rover.image
				user:  "root"
				command: name: "/bin/bash"
				command: args: ["-c", """
					echo 'az login --service-principal -u xxx -p xxx --tenant xxx' > /root/.azure/az_login
					"""]
				mounts: _azureCache
			}

			az_account_show: docker.#Run & {
				input: az_login.output
				user:  "root"
				command: name: "/bin/bash"
				command: args: ["-c", """
					cat /root/.azure/az_login
					"""]
				mounts: _azureCache
			}
		}
	}
}