docker: add portainer howto

Author: 9001

docs/examples/docker/portainer.md

@@ -0,0 +1,45 @@
+the following setup appears to work (copyparty starts, accepts uploads, is able to persist config)
+
+tested on debian 12 using [portainer-ce](https://docs.portainer.io/start/install-ce/server/docker/linux) with [docker-ce](https://docs.docker.com/engine/install/debian/) as root (not rootless)
+
+before making the container, first `mkdir /etc/copyparty /srv/pub` which will be bind-mounts into the container
+
+> both `/etc/copyparty` and `/srv/pub` are examples; you can change them if you'd like
+
+put your copyparty config files directly into `/etc/copyparty` and the files to share inside `/srv/pub`
+
+on first startup, copyparty will create a subfolder inside `/etc/copyparty` called `copyparty` where it puts some runtime state; for example replacing `/etc/copyparty/copyparty/cert.pem` with another TLS certificate is a quick and dirty way to get valid HTTPS (if you really want copyparty to handle that and not a reverse-proxy)
+
+
+## in portainer:
+
+```
+environments -> local -> containers -> add container:
+
+       name = copyparty-ac
+   registry = docker hub
+      image = copyparty/ac
+always pull = no
+
+manual network port publishing:
+  3923 to 3923 [TCP]
+
+advanced -> command & logging:
+  console = interactive & tty
+
+advanced -> volumes -> map additional volume:
+  container = /cfg  [Bind]
+  host = /etc/copyparty  [Writable]
+
+advanced -> volumes -> map additional volume:
+  container = /w  [Bind]
+  host = /srv/pub  [Writable]
+```
+
+notes:
+
+* `/cfg` is where copyparty expects to find its config files; `/etc/copyparty` is just an example mapping to that
+
+* `/w` is where copyparty expects to find the folder to share; `/srv/pub` is just an example mapping to that
+
+* the volumes must be bind-mounts to avoid permission issues (or so the theory goes)

scripts/docker/README.md

@@ -22,6 +22,11 @@ this example is also available as a podman-compatible [docker-compose yaml](http
 i'm not very familiar with containers, so let me know if this section could be better 🙏
 
 
+## portainer
+
+* there is a [portainer howto](https://github.com/9001/copyparty/blob/hovudstraum/docs/examples/docker/portainer.md) which is mostly untested
+
+
 ## configuration
 
 > this section basically explains how the [docker-compose yaml](https://github.com/9001/copyparty/blob/hovudstraum/docs/examples/docker/basic-docker-compose) works, so you may look there instead