mirror of
https://github.com/spantaleev/matrix-docker-ansible-deploy.git
synced 2024-12-12 08:43:55 +02:00
69 lines
3.9 KiB
YAML
69 lines
3.9 KiB
YAML
---
|
|
|
|
# This requires the dnspython library which is usually unavailable.
|
|
- name: Check DNS SRV record for {{ dns_srv_record_check.service_and_protocol }} on {{ dns_srv_record_check.domain }} using Ansible dig lookup
|
|
set_fact:
|
|
lookup_dig_srv: "{{ lookup('dig', (dns_srv_record_check.service_and_protocol + '.' + dns_srv_record_check.domain + '/SRV'), 'flat=0', wantlist=False) }}"
|
|
register: result_lookup_dig_srv
|
|
ignore_errors: true
|
|
|
|
- name: Fail if DNS SRV check via Ansible dig lookup failed for non-dependency reason
|
|
fail:
|
|
msg: "DNS SRV record check via Ansible dig lookup plugin (which uses the dnspython package) failed. Error is: {{ result_lookup_dig_srv.msg }}"
|
|
when: "result_lookup_dig_srv.failed and 'dnspython' not in result_lookup_dig_srv.msg"
|
|
|
|
# Fallback to using the dig CLI tool if dnspython was unavailable.
|
|
- name: Check DNS SRV record for {{ dns_srv_record_check.service_and_protocol }} on {{ dns_srv_record_check.domain }} using dig CLI tool
|
|
shell:
|
|
cmd: "dig -t srv {{ (dns_srv_record_check.service_and_protocol + '.' + dns_srv_record_check.domain)|quote }}"
|
|
register: result_cli_dig_srv
|
|
changed_when: false
|
|
ignore_errors: true
|
|
when: "lookup_dig_srv is not defined"
|
|
|
|
- name: Fail if dig CLI used and failed
|
|
fail:
|
|
msg: >-
|
|
Failed performing DNS SRV record check.
|
|
You neither have the `dnspython` Python package, nor the `dig` program installed locally.
|
|
You need to install one of those, so we could perform a DNS SRV record check.
|
|
Full error from trying to run `dig`: {{ result_cli_dig_srv }}
|
|
when: "lookup_dig_srv is not defined and result_cli_dig_srv.stderr != ''"
|
|
|
|
# Some DNS servers may respond with '' (stands for "No Answer").
|
|
# Most usually, a missing record would yield a 'NXDOMAIN' response.
|
|
# In any case, we consider any non-mapping response to mean "missing record".
|
|
- name: Fail if DNS SRV record missing (Ansible dig lookup)
|
|
fail:
|
|
msg: >-
|
|
It appears the DNS SRV record for {{ dns_srv_record_check.service_and_protocol }} on {{ dns_srv_record_check.domain }} is not set up correctly (the record is missing).
|
|
See the 'Configuring DNS' documentation for this playbook.
|
|
when: "lookup_dig_srv is defined and lookup_dig_srv is not mapping"
|
|
|
|
- name: Fail if DNS SRV record incorrect (Ansible dig lookup)
|
|
fail:
|
|
msg: >-
|
|
It appears the DNS SRV record for {{ dns_srv_record_check.service_and_protocol }} on {{ dns_srv_record_check.domain }} is not set up correctly.
|
|
Expected it to point to `{{ dns_srv_record_check.expected_target }}` (port {{ dns_srv_record_check.expected_port }}).
|
|
Found it pointing to `{{ lookup_dig_srv.target }}` (port {{ lookup_dig_srv.port }}).
|
|
See the 'Configuring DNS' documentation for this playbook.
|
|
when: "lookup_dig_srv is defined and (lookup_dig_srv.target != dns_srv_record_check.expected_target or lookup_dig_srv.port != dns_srv_record_check.expected_port)"
|
|
|
|
# We expect an answer like this:
|
|
# ;; ANSWER SECTION:
|
|
# _matrix._tcp.DOMAIN. 10800 IN SRV 10 0 8448 matrix.DOMAIN.
|
|
- name: Fail if DNS SRV record missing or incorrect (dig CLI tool)
|
|
fail:
|
|
msg: >-
|
|
It appears the DNS SRV record for {{ dns_srv_record_check.service_and_protocol }} on {{ dns_srv_record_check.domain }} is not set up correctly.
|
|
Expected it to point to `{{ dns_srv_record_check.expected_target }}` (port {{ dns_srv_record_check.expected_port }}).
|
|
See the 'Configuring DNS' documentation for this playbook.
|
|
Full response from the `dig` lookup was: {{ result_cli_dig_srv }}
|
|
when: "lookup_dig_srv is not defined and (dns_srv_record_check.expected_port|string + ' ' + dns_srv_record_check.expected_target) not in result_cli_dig_srv.stdout"
|
|
|
|
- name: Report correct DNS SRV record
|
|
debug:
|
|
msg: >-
|
|
The DNS SRV record for `{{ dns_srv_record_check.service_and_protocol }}` on `{{ dns_srv_record_check.domain }}`
|
|
points to `{{ dns_srv_record_check.expected_target }}` (port {{ dns_srv_record_check.expected_port }}), as expected.
|