In order to enable LDAPS/STARTTLS support in Samba, the `tls enabled`
option must be set to `yes` and the `tls keyfile` and `tls certfile`
options must be set to the path of the private key and certificate
files, respectively, that Samba will use. The `samba_tls_enabled`,
`samba_tls_keyfile`, and `samb_tls_certfile` Ansible variables can be
used to control these values.
The `socket options` directive does not need to be specified in
`smb.conf`. I think I copied it from an example many years ago, and
never bothered to remove it. It is definitely not required, most likely
not helping performance at all, and most likely hindering it.
This commit adjusts the firewall and networking configuration on dc0 to
host the Pyrocufflink remote access IPsec VPN locally instead of
forwarding it to the internal VPN server.
The *dch-vpn-server* role configures strongSwan to act as an IPsec
responder for `vpn.pyrocufflink.net` and provide an IKEv2/IPsec VPN for
remote access clients, as well as the reverse VPN to FireMon.
The *strongwan* role is intended to be used as a dependency of other
roles that use strongSwan for IPsec configuration. It deploys some basic
configuration and configures the *strongswan* service, but does not
configure any connections, secrets, etc.
Newer versions of ansible no longer require a single top-level temporary
directory per user, as each run creates its own. Combined with the weird
random failures on *dc0.pyrocufflink.blue* that prevent Jenkins from
using Ansible occasionally, it's better to just let Ansible create its
own temporary directory directly in `/var/tmp` and clean up after itself
when it finishes.
Using `state=absent` with the `file` module in a `with_items` loop to
delete the "default" module and site configuration files and the example
certificates is incredibly slow. Especially on the Raspberry Pi, it can
take several minutes to apply this role, even when there are no changes
to make. Using the `command` module and running `rm` to remove these
files, while not as idempotent, is significantly faster. The main
drawback is that each item in the list is not checked, so new items to
remove have to be added to the end of the list instead of in
alphabetical order.
The *freeradius* role is used to install and configure FreeRADIUS. The
configuration system for it is extremely complicated, with dozens of
files in several directories. The default configuration has a plethora
of options enabled that are not needed in most cases, so they are
disabled here. Since the initial (and perhaps only) use case I have for
RADIUS is WiFi authentication via certificates, only the EAP-TLS
mechanism is enabled currently.
Many hosts have a read-only root filesystem, as well as some other
read-only paths that need to be remounted before configuration changes
can be made. The `remount.yml` playbook can be used to remount select
filesystems as either read-write or read-only (the default). It is
intended to be used before and after other playbooks, to ensure the
filesystems are in the correct state.
The *postfix* role installs and configures the Postfix MTA. It currently
supports a number of modes, including direct transfer and relay. Relay
mode supports STARTTLS security and PLAIN authentication.
Since the location of the configuration drop-in directory can vary by
distribution, it is important to expand the `zbx_agent_config_dir`
variable in the `Include` parameter.
Apparently, the `vault_password_file` setting in `ansible.cfg` overrides
the `--vault-password-file` command-line argument, which breaks the
Jenkins `ansiblePlaybook` task.
The host *zbx0.pyrocufflink.blue* (a Raspberry Pi) runs the Zabbix
server and web UI. It has a reserved IPv4 address to simplify reverse
DNS management for now, since Samba's dynamic DNS client does not
register PTR records.
The *zabbix-agent* role installs the Zabbix monitoring agent on the
managed node, and sets it up to communicate with the Zabbix server
specified by the `zabbix_server` variable. This role "should" be
compatible with most distributions; it has been tested with Fedora and
Gentoo.
Dustin