update compose with iam-proxy-italia naming

[peppelinux]

This PR updates docker compose and all the scripts using iam-proxy-italia instead of satosa-saml2spid

[MdreW]

Hi @peppelinux,
I would not rename satosa-saml2spid to iam-proxy-italia.
I would rename the prefix satosa- to iam-proxy-italia-, iam- or iampi-.
The prefix is usefull to recognize the containers member of their compose end is usefull if is same to all.

I add this proposal:
We can add at start of docker-compose file the 'name' key with iam-proxy-italia as project name value.
The project name is used automatically as prefix.
we can rename the service as:

• nginx
• mongo
• satosa (or proxy)

at composer start each container will be named:

• iam-proxy-italia-nginx-1
• iam-proxy-italia-mongo-1
• iam-proxy-italia-satosa-1 (or proxy)

With this system you can use the short name with docker compose or the full name from container command.

Example:

• from compose - docker compose restart satosa
• form container - docker container restart iam-proxy-italia-satosa-1

Little add: iam-proxy-italia is a really beautiful and long name, with this I can use a more short name from a single key
example: name: iampi

[MdreW]

Another think, today we really need of a named network?
A named network is useful exclusively if you need to add some specific rules or if this network must connect with some other virtual network.
I think that we can remove the named network: in recent docker installation the network is created dynamically at composer startup... and this work fine. I think that is only an old school heritage

[MdreW]

All fine!