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matrix-docker-ansible-deploy/roles/matrix-base/tasks/sanity_check.yml
Slavi Pantaleev c10182e5a6 Make roles more independent of one another
With this change, the following roles are now only dependent
on the minimal `matrix-base` role:
- `matrix-corporal`
- `matrix-coturn`
- `matrix-mailer`
- `matrix-mxisd`
- `matrix-postgres`
- `matrix-riot-web`
- `matrix-synapse`

The `matrix-nginx-proxy` role still does too much and remains
dependent on the others.

Wiring up the various (now-independent) roles happens
via a glue variables file (`group_vars/matrix-servers`).
It's triggered for all hosts in the `matrix-servers` group.

According to Ansible's rules of priority, we have the following
chain of inclusion/overriding now:
- role defaults (mostly empty or good for independent usage)
- playbook glue variables (`group_vars/matrix-servers`)
- inventory host variables (`inventory/host_vars/matrix.<your-domain>`)

All roles default to enabling their main component
(e.g. `matrix_mxisd_enabled: true`, `matrix_riot_web_enabled: true`).
Reasoning: if a role is included in a playbook (especially separately,
in another playbook), it should "work" by default.

Our playbook disables some of those if they are not generally useful
(e.g. `matrix_corporal_enabled: false`).
2019-01-16 18:05:48 +02:00

30 lines
1.3 KiB
YAML

---
- set_fact:
matrix_ansible_outdated_fail_msg: "You are running on Ansible {{ ansible_version.string }}, which is not supported. See our guide about Ansible: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/ansible.md"
- name: Fail if running on Ansible < 2.4
fail:
msg: "{{ matrix_ansible_outdated_fail_msg }}"
when: "ansible_version.major <= 2 and ansible_version.minor < 4"
# Ansible 2.5.0 and 2.5.1 are known to have a bug with `include_tasks` + `with_items`.
# The bug has been fixed in Ansible 2.5.2.
- name: Fail if running on Ansible 2.5.x (lower than 2.5.2)
fail:
msg: "{{ matrix_ansible_outdated_fail_msg }}"
when: "ansible_version.major == 2 and ansible_version.minor == 5 and ansible_version.revision < 2"
# This sanity check is only used to detect uppercase when people override these specific variables.
#
# If people set `host_specific_hostname_identity` without overriding other variables (the general use-case),
# we take care to lower-case it automatically and it won't cause trouble anyway.
- name: Fail if uppercase domain used
fail:
msg: "Detected that you're using an uppercase domain name - `{{ item }}`. This will cause trouble. Please use all-lowercase!"
when: "item != item|lower"
with_items:
- "{{ hostname_identity }}"
- "{{ hostname_matrix }}"
- "{{ hostname_riot }}"