The *graylog* role installs Graylog from the *graylog2.org* Yum
repository and manages basic server configuration. It augments the
default systemd unit to provide the `CAP_NET_BIND_SERVICE` capability to
the Graylog server process via ambient capabilities, thereby allowing
the server to bind to the privileged Syslog UDP port.
For some reason, Ansible developers felt like it was important that
users name their host groups according to Python identifier naming
conventions. This prevents, among other things, hyphens from being used
in group names. Luckily, this ridiculous behavior is configurable.
The `Alias` configuration for Certbot needs to be configured before any
other locations, to ensure the `/.well-known` path is always served from
the local filesystem. If another drop-in configuration file (e.g.
`bitwarden.conf`) is ordered before it, it may override this
configuration and prevent Let's Encrypt from working.
In order to allow Jenkins to connect to the Docker daemon socket, the
socket must be owned by the *docker* group, and the *jenkins* user must
be a member of it.
Having an empty (therefore undefined) group as the child of another
group causes Ansible to emit a "warning" (really an error) indicating
that it cannot parse the inventory file:
[WARNING]: * Failed to parse
/var/lib/jenkins/workspace/CfgMgmt/pyrocufflink/hosts with ini plugin:
/var/lib/jenkins/workspace/CfgMgmt/pyrocufflink/hosts:60: Section
[smtp- relay:children] includes undefined group: zabbix-server
*serial0.pyrocufflink.blue* has a manually-configured IP address now, to
ensure it always has an addresss, even if the DHCP server is
unavailable. Recording it here to ensure the address does not
accidentally get reused.
This commit adds an HAProxy backend for Bitwarden, and adds ACL rules to
the frontend to proxy traffic to *bitwarden.pyrocufflink.blue* or
*bitwarden.pyrocufflink.net* to it.
Since the same certificate is used for LDAPS and RADIUS (EAP-TLS), it
makes more sense to store it only once, with the later file as a symlink
to the former.
This commit configures *bw0.pyrocufflink.blue* as a BURP client, so that
the Bitwarden data can be backed up. A pre-backup script is used to
take a consistent snapshot of the SQLite database before copying it to
the BURP server.
Since the `burp` client command is scheduled to run using Cron, Cronie
needs to be installed and set up in order for the *burp-client* role to
install its cron table file.
The BURP server runs as user *burp*, and nas such, requires that the
client-specific configuration files be owned by that user so they can be
read when a client connects.
Newer versions of the BURP client require `status_port` to be set. This
commit updates the `burp.conf.j2` template to more closely match the
default configuration shipped with the *burp* package, including setting
this new value.
*cm0.pyrocufflink.blue* has been deprecated and shut down.
Configuration Management jobs now run on regular Jenkins nodes, and are
serialized using "lockable resources" instead of a single executor.
*dns1.pyrocufflink.blue* has been decommissioned. Having a second DNS
server never really worked correctly for some reason, and the
maintenance overhead of the Raspberry Pi is just not worth it right now.
The DHCP service has been moved to *dns0.pyrocufflink.blue*.
It is important that only one configuration management job run at a
time. Currently, this is enforced by having only one agent with the
*ansible* label, and that agent has only one executor. This is not an
ideal solution, because it requires maintaining a separate machine for
this purpose.
The *Lockable Resources Plugin* provides an alternate solution to this
problem. Using this plugin, jobs can acquire an exclusive lock on a
"resource" that prevents other jobs that require the same resource from
running. Any job that starts while the lock is held will wait until it
is released before executing. This will enforce the same serial
execution policy, but does not require a separate, dedicated machine.
Jobs will be able to run on any executor with the appropriate label.
Using this option, it is now possible to run configuration management
jobs on the normal agents, defining the execution environment in a
Docker image, so the *cm0.pyrocufflink.blue* agent can be
decommissioned.
Newer versions of Gitea need a JWT secret for Oauth2. Gitea will
attempt to generate one at startup if it is not already specified in the
configuration file, but this will fail since the file is not writable by
the user running the service. As such, it must be set via configuration
policy.
The Zabbix server resolves *localhost* to `::1`, but Postfix resolves it
to `127.0.0.1`. This causes Postfix to reject incoming mail from Zabbix
with "Relay access denied." Explicitly setting the `mynetworks` setting
to include both the IPv4 and IPv6 loopback addresses will ensure that no
mail is rejected from local processes, regardless of how name resolution
happens.
The point of the "wheel host" is to serve as a repository of Python
packages (wheels) built by Jenkins for consumption by `pip` et al. For
applications and libraries that do not provide all of their dependencies
as binary packages, this makes a convenient way to install them without
requiring all of the build tools and dependencies on the destination
machine.
The idea here is that a Jenkins job runs `pip wheel` for a distribution
package name or `requirements.txt` file and then uploads the resulting
wheel files using `rsync`. Apache is configured to serve the upload
directory with an index compatible with `pip`'s `--find-links`.
The *hass-dhcp* role installs dnsmasq and configures it to serve DHCP
requests on the Home Assistant network. Since this network is not
routed, the regular DHCP relay/server setup will not work.
This commit adds a systemd unit to enable the Kernel Same-page Merging
daemon on VM hosts. This allows much greater virtual machine density,
especially when many VMs are running the same guest OS.
Debian does not support system-wide SSL cipher suite profiles of course,
so these options need to be specified explicitly when deploying HAProxy
on Debian-based machines.
This commit updates the net-ifaces scripts for both *vmhost0* and
*vmhost1* to create VLAN and bridge interfaces for the Management and
Home Assistant networks.
Dustin