feat(installer): rewrite install script

- remove unused root packages.ini
- write config to yaml file
- allow to set public_url during install
- force icecast start right after package install
- move config file in place at the end of installation

BREAKING CHANGE: The bash installer has been rewritten, the flags and
options changed, please run `./install --help` to get more details.

legacy/build/airtime.example.conf

@@ -1,92 +0,0 @@
-# See https://libretime.org/docs/setup/configuration
-#
-# ----------------------------------------------------------------------
-#                    G E N E R A L   S E T T I N G S
-# ----------------------------------------------------------------------
-[general]
-# The public url, this field is REQUIRED
-public_url =
-# The internal API authentication key, this field is REQUIRED
-api_key =
-
-# How many hours ahead Playout should cache scheduled media files, default is 1
-cache_ahead_hours = 1
-
-# Authentication adaptor to use for the legacy service, default is local
-# Specify a class like LibreTime_Auth_Adaptor_FreeIpa to replace the built-in adaptor
-auth = local
-
-# ----------------------------------------------------------------------
-#                            D A T A B A S E
-# ----------------------------------------------------------------------
-[database]
-# The hostname of the PostgreSQL server, default is localhost
-host = localhost
-# The port of the PostgreSQL server, default is 5432
-port = 5432
-# The name of the PostgreSQL database, default is libretime
-name = airtime
-# The username of the PostgreSQL user, default is libretime
-user = airtime
-# The password of the PostgreSQL user, default is libretime
-password = airtime
-
-# ----------------------------------------------------------------------
-# RABBITMQ
-# ----------------------------------------------------------------------
-[rabbitmq]
-# The hostname of the RabbitMQ server, default is localhost
-host = localhost
-# The port of the RabbitMQ server, default is 5672
-port = 5672
-# The virtual host of RabbitMQ server, default is /libretime
-vhost = /airtime
-# The username of the RabbitMQ user, default is libretime
-user = airtime
-# The password of the RabbitMQ user, default is libretime
-password = airtime
-
-# ----------------------------------------------------------------------
-# PLAYOUT
-# ----------------------------------------------------------------------
-[playout]
-# Liquidsoap connection host, default is localhost
-liquidsoap_host = localhost
-# Liquidsoap connection port, default is 1234
-liquidsoap_port = 1234
-
-# The format for recordings, allowed values ogg,mp3, default is ogg
-record_file_format = ogg
-# The bitrate for recordings, default is 256
-record_bitrate = 256
-# The samplerate for recordings, default is 256
-record_samplerate = 44100
-# The number of channels for recordings, default is 2
-record_channels = 2
-# The sample size for recordings, default is 16
-record_sample_size = 16
-
-# ----------------------------------------------------------------------
-#                          L D A P
-# ----------------------------------------------------------------------
-[ldap]
-# Hostname of LDAP server
-hostname = ldap.example.org
-# Complete DN of user used to bind to LDAP
-binddn = 'uid=libretime,cn=sysaccounts,cn=etc,dc=int,dc=example,dc=org'
-# Password for binddn user
-password = hackme
-# Domain part of username
-account_domain = INT.EXAMPLE.ORG
-# Base search DN
-basedn = 'cn=users,cn=accounts,dc=int,dc=example,dc=org'
-# Name of the uid field for searching. Usually uid, may be cn
-filter_field = uid
-
-# Map user types to LDAP groups. Assign user types based on the group of a given user
-# Key format is groupmap_*
-groupmap_superadmin = 'cn=superadmin,cn=groups,cn=accounts,dc=int,dc=example,dc=org'
-groupmap_admin = 'cn=admin,cn=groups,cn=accounts,dc=int,dc=example,dc=org'
-groupmap_program_manager = 'cn=program_manager,cn=groups,cn=accounts,dc=int,dc=example,dc=org'
-groupmap_host = 'cn=host,cn=groups,cn=accounts,dc=int,dc=example,dc=org'
-groupmap_guest = 'cn=guest,cn=groups,cn=accounts,dc=int,dc=example,dc=org'