Files
natelandau_ansible-homelab-…/tasks/consul.yml
Nathaniel Landau 523560d6ef Improve version checking
Adopt the Ansible conditional checking format of `when: var1 is version(var2, '<') as explained here:
https://docs.ansible.com/ansible/latest/user_guide/playbooks_tests.html#comparing-versions
2022-05-12 09:32:53 -04:00

353 lines
11 KiB
YAML

---
# TASK DESCRIPTION:
# Downloads, installs, and configures Hashicorp Consul.
- name: Set variables needed to install consul
block:
- name: "set variable: check if we have a mounted USB drive (Debian)"
ansible.builtin.stat:
path: "{{ rpi_usb_drive_mount_point }}"
register: have_usb_drive
changed_when: false
when:
- ansible_os_family == 'Debian'
- name: "set variable: Use USB drive for consul /opt (Debian)"
ansible.builtin.set_fact:
consul_opt_dir: "{{ rpi_usb_drive_mount_point }}/opt/consul"
when:
- ansible_os_family == 'Debian'
- have_usb_drive.stat.exists
- name: "set variable: Use root disk for consul /opt (Debian)"
ansible.builtin.set_fact:
consul_opt_dir: "/opt/consul"
when:
- ansible_os_family == 'Debian'
- not have_usb_drive.stat.exists
- name: "set variable: Use ~/library for /opt files (macOSX)"
ansible.builtin.set_fact:
consul_opt_dir: "/Users/{{ ansible_user }}/Library/consul"
when:
- mac_intel or mac_arm
- name: "set variable: Use ~/volume1/docker/consul/data for /opt files (synology)"
ansible.builtin.set_fact:
consul_opt_dir: "/volume1/docker/consul/data"
when:
- inventory_hostname == 'synology'
- name: "set variable: Set Consul download Binary (armv7l)"
ansible.builtin.set_fact:
consul_download_uri: "https://releases.hashicorp.com/consul/{{ consul_version }}/consul_{{ consul_version }}_linux_arm.zip"
when:
- ansible_os_family == 'Debian'
- ansible_architecture == 'armv7l'
- name: "set variable: Set Consul download Binary (MacOSX)"
ansible.builtin.set_fact:
consul_download_uri: "https://releases.hashicorp.com/consul/{{ consul_version }}/consul_{{ consul_version }}_darwin_amd64.zip"
when: mac_intel
- name: "set variable: Set Consul download Binary (MacOSX)"
ansible.builtin.set_fact:
consul_download_uri: "https://releases.hashicorp.com/consul/{{ consul_version }}/consul_{{ consul_version }}_darwin_arm64.zip"
when: mac_arm
- name: Assert that we can install Consul
ansible.builtin.assert:
that:
- consul_download_uri is defined
- consul_opt_dir is defined
fail_msg: "Unable to install consul on this host"
when: inventory_hostname != 'synology'
- name: "Stop Consul"
block:
- name: "stop consul systemd service (Debian)"
become: true
ansible.builtin.systemd:
name: consul
state: stopped
when:
- ansible_os_family == 'Debian'
- ansible_facts.services["consul.service"] is defined
- name: "check if plist file exists (MacOSX)"
ansible.builtin.stat:
path: "{{ consul_plist_macos }}"
register: consul_file
when:
- ansible_os_family == 'Darwin'
- name: "unload consul agent (MacOSX)"
become: true
ansible.builtin.command:
cmd: "launchctl unload {{ consul_plist_macos }}"
when:
- ansible_os_family == 'Darwin'
- consul_file.stat.exists
- name: "Create 'consul' user and group"
when:
- ansible_os_family == 'Debian'
block:
- name: "Ensure group 'consul' exists (Debian)"
become: true
ansible.builtin.group:
name: consul
state: present
- name: "Add the user 'consul' with group 'consul' (Debian)"
become: true
ansible.builtin.user:
name: consul
group: consul
- name: "Create Consul /opt storage and copy certificates"
block:
- name: "create {{ consul_opt_dir }} directories"
become: true
ansible.builtin.file:
path: "{{ item }}"
state: directory
recurse: true
mode: 0755
loop:
- "{{ consul_opt_dir }}"
- "{{ consul_opt_dir }}/logs"
- "{{ consul_opt_dir }}/plugins"
- "{{ consul_opt_dir }}/certs"
- name: Copy certs to servers
become: true
ansible.builtin.copy:
src: "{{ item.src }}"
dest: "{{ item.dest }}"
mode: 0755
loop:
- { src: "certs/consul/consul-agent-ca.pem", dest: "{{ consul_opt_dir }}/certs/consul-agent-ca.pem" }
- { src: "certs/consul/{{ datacenter_name }}-server-consul-0.pem", dest: "{{ consul_opt_dir }}/certs/{{ datacenter_name }}-server-consul-0.pem" }
- { src: "certs/consul/{{ datacenter_name }}-server-consul-0-key.pem", dest: "{{ consul_opt_dir }}/certs/{{ datacenter_name }}-server-consul-0-key.pem" }
when:
- is_consul_server
- name: Copy certs to clients
become: true
ansible.builtin.copy:
src: certs/consul/consul-agent-ca.pem
dest: "{{ consul_opt_dir }}/certs/consul-agent-ca.pem"
mode: 0755
when:
- is_consul_client
- not is_consul_server
- name: "set owner of files to consul:consul (debian)"
become: true
ansible.builtin.file:
path: "{{ consul_opt_dir }}"
owner: consul
group: consul
recurse: true
when:
- ansible_os_family == 'Debian'
- name: "set owner of files to {{ ansible_user_uid }}:{{ ansible_user_gid }}"
become: true
ansible.builtin.file:
path: "{{ consul_opt_dir }}"
owner: "{{ ansible_user_uid }}"
group: "{{ ansible_user_gid }}"
recurse: true
when:
- mac_intel or mac_arm or inventory_hostname == 'synology'
- name: "Template out Consul configuration file"
block:
- name: "create {{ interpolated_consul_configuration_dir }}"
become: true
ansible.builtin.file:
path: "{{ interpolated_consul_configuration_dir }}"
state: directory
mode: 0755
- name: copy consul base config file
become: true
ansible.builtin.template:
src: consul.hcl.j2
dest: "{{ interpolated_consul_configuration_dir }}/consul.hcl"
mode: 0644
- name: "set owner of files to consul:consul (Debian)"
become: true
ansible.builtin.file:
path: "{{ interpolated_consul_configuration_dir }}"
owner: consul
group: consul
recurse: true
when:
- ansible_os_family == 'Debian'
- name: "set owner of files to {{ ansible_user_uid }}:{{ ansible_user_gid }}"
become: true
ansible.builtin.file:
path: "{{ interpolated_consul_configuration_dir }}"
owner: "{{ ansible_user_uid }}"
group: "{{ ansible_user_gid }}"
recurse: true
when:
- mac_intel or mac_arm or inventory_hostname == 'synology'
- name: "set owner of root consul dir to {{ ansible_user_uid }}:{{ ansible_user_gid }} (synology)"
become: true
ansible.builtin.file:
path: /volume1/docker/consul/
owner: "{{ ansible_user_uid }}"
group: "{{ ansible_user_gid }}"
recurse: true
when:
- inventory_hostname == 'synology'
- name: "Install Consul binary"
block:
- name: "set fact: need install consul?"
ansible.builtin.set_fact:
need_consul_install: false
when:
- consul_download_uri is defined
- name: Check if Consul is installed
ansible.builtin.stat:
path: /usr/local/bin/consul
register: consul_binary_file_location
when:
- consul_download_uri is defined
- name: "set fact: need consul install?"
ansible.builtin.set_fact:
need_consul_install: true
when:
- consul_download_uri is defined
- not consul_binary_file_location.stat.exists
- name: Check current version of Consul
ansible.builtin.shell:
cmd: /usr/local/bin/consul --version | grep -oE '[0-9]+\.[0-9]+\.[0-9]+'
ignore_errors: true
changed_when: false
register: installed_consul_version
check_mode: false
when:
- consul_download_uri is defined
- not need_consul_install
- name: "set fact: need consul install?"
ansible.builtin.set_fact:
need_consul_install: true
when:
- consul_download_uri is defined
- not need_consul_install
- installed_consul_version.stdout is version(consul_version, '<')
- name: install Consul
become: true
ansible.builtin.unarchive:
src: "{{ consul_download_uri }}"
dest: /usr/local/bin
remote_src: true
when:
- consul_download_uri is defined
- need_consul_install
- name: "validate consul config"
ansible.builtin.command:
cmd: "/usr/local/bin/consul validate {{ interpolated_consul_configuration_dir }}"
register: consul_config_valid
changed_when: false
failed_when: consul_config_valid.rc != 0
when:
- inventory_hostname != 'synology'
- name: "Copy system.d or launchctl service files"
block:
- name: ensure /Library/LaunchAgents exists (MacOSX)
ansible.builtin.file:
path: "{{ consul_plist_macos | dirname }}"
state: directory
mode: 0755
when:
- ansible_os_family == 'Darwin'
- name: create Consul launchd service (MacOSX)
ansible.builtin.template:
src: consul.launchd.j2
dest: "{{ consul_plist_macos }}"
mode: 0644
when:
- ansible_os_family == 'Darwin'
- name: create Consul service (Debian)
become: true
ansible.builtin.template:
src: consul.service.j2
dest: /etc/systemd/system/consul.service
mode: 0644
when:
- ansible_os_family == 'Debian'
- name: "Start Consul"
block:
- name: load the Consul agent (MacOSX)
ansible.builtin.command:
cmd: "launchctl load -w {{ consul_plist_macos }}"
when:
- mac_intel or mac_arm
- "'nostart' not in ansible_run_tags"
- name: start Consul (Debian)
become: true
ansible.builtin.systemd:
name: consul
enabled: true
state: started
when:
- ansible_os_family == 'Debian'
- "'nostart' not in ansible_run_tags"
- name: make sure Consul service is really running
ansible.builtin.command:
cmd: systemctl is-active consul
register: is_consul_really_running
changed_when: false
failed_when: is_consul_really_running.rc != 0
when:
- ansible_os_family == 'Debian'
- "'nostart' not in ansible_run_tags"
- name: "Copy Consul service checks to synology"
when:
- inventory_hostname == 'synology'
block:
- name: copy config file
ansible.builtin.template:
src: consul_services/consul_synology_checks.json.j2
dest: "{{ interpolated_consul_configuration_dir }}/service_checks.json"
mode: 0644
- name: Reload configuration file
ansible.builtin.uri:
url: "http://{{ synology_second_ip }}:8500/v1/agent/reload"
method: PUT
status_code: 200
ignore_errors: true
check_mode: false
register: consul_agent_reload_http_response
failed_when: consul_agent_reload_http_response.status != 200
- name: debug when consul agent reload fails
ansible.builtin.debug:
var: consul_agent_reload_http_response.msg
check_mode: false
when: consul_agent_reload_http_response.status != 200