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https://marcusnoble.co.uk/2021-09-01-migrating-from-docker-to-podman/

https://github.com/containers/podman-compose

downsides

no local mounts

upsides

automation-friendly - all CLI, no GUI app

install podman and podman-compose using the following

  • may need to xcode-select --install before pip3 to avoid an "invalid active developer path" error when it can't find xcrun
  • re-assert PATH after bre install python3 because /usr/local/bin/python3 and /usr/local/bin/pip3 are symbolic links, so resolution of python3 and pip3 don't change from /usr/bin to /usr/local/bin until PATH is reasserted.
brew install python3 podman
export PATH=${PATH} # fix resolution of `pip3` and `python3`
/usr/local/bin/pip3 install podman-compose
podman machine init # downloads 600+MB, so may take awhile
podman machine set --rootful # want to listen on port 80, so the process needs to have root permissions
podman machine start

Some notes displayed after installing podman. Will probably need to backtrack and run at least some of these.

  • had to run the "rootful" one
This machine is currently configured in rootless mode. If your containers
require root permissions (e.g. ports < 1024), or if you run into compatibility
issues with non-podman clients, you can switch using the following command: 

	podman machine set --rootful

API forwarding listening on: /Users/peter/.local/share/containers/podman/machine/podman-machine-default/podman.sock

The system helper service is not installed; the default Docker API socket
address can't be used by podman. If you would like to install it run the
following commands:

	sudo /usr/local/Cellar/podman/4.2.1/bin/podman-mac-helper install
	podman machine stop; podman machine start

You can still connect Docker API clients by setting DOCKER_HOST using the
following command in your terminal session:

	export DOCKER_HOST='unix:///Users/peter/.local/share/containers/podman/machine/podman-machine-default/podman.sock'

Machine "podman-machine-default" started successfully
peter@Peters-MBP ~ % which podman-mac-helper
/usr/local/bin/podman-mac-helper

then pull the admin repo and deploy

git pull https://github.com/sourcegraph/deploy-sourcegraph-docker
cd deploy-sourcegraph-docker/docker-compose
podman-compose up -d
open http://localhost

results:

  • can't bind to port 80 because of rootless - gotta go back and make the machine "rootful"
  • one of the containers could not find locale (probably a db container?)
  • the same container could not run GetWinsize. Need to updte MinIO?
performing post-bootstrap initialization ... sh: locale: not found
2022-10-16 00:42:35.390 UTC [19] WARNING:  no usable system locales were found
WARNING: MINIO_ACCESS_KEY and MINIO_SECRET_KEY are deprecated.
         Please use MINIO_ROOT_USER and MINIO_ROOT_PASSWORD
ok
syncing data to disk ... 2022/10/16 00:42:37 request /health http://127.0.0.1:44013
Formatting 1st pool, 1 set(s), 1 drives per set.
WARNING: Host local has more than 0 drives of set. A host failure will result in data becoming unavailable.
❗️ An error was returned when detecting the terminal size and capabilities:
   
   GetWinsize: inappropriate ioctl for device
   
   Execution will continue, but please report this, along with your operating
   system, terminal, and any other details, to:
     https://github.com/sourcegraph/sourcegraph/issues/new
   

 You are running an older version of MinIO released 2 months ago 
 Update: Run `mc admin update` 


sh: locale: not found
2022-10-16 00:42:39.478 UTC [19] WARNING:  no usable system locales were found
ok

Potentially huge issue

podman doesn't cache images? After this:

podman-compose down
podman machine stop
podman machine set --rootful
podman machine start
podman-compose up

It is downloading all of the same images that it download last time.