homelab-nomad/setup-cluster.yml

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---
- name: Build Consul cluster
hosts: consul_instances
any_errors_fatal: true
roles:
- role: ansible-consul
vars:
consul_version: "1.11.3"
consul_install_remotely: true
consul_install_upgrade: true
consul_node_role: server
consul_bootstrap_expect: true
consul_user: consul
consul_manage_user: true
consul_group: bin
consul_manage_group: true
consul_architecture_map:
x86_64: amd64
armhfv6: arm
armv7l: arm
# consul_tls_enable: true
consul_connect_enabled: true
consul_ports_grpc: 8502
consul_client_address: "0.0.0.0"
# Enable metrics
consul_config_custom:
telemetry:
prometheus_retention_time: "2h"
become: true
tasks:
- name: Start Consul
systemd:
state: started
name: consul
become: true
- name: Add values
block:
- name: Install python-consul
pip:
name: python-consul
extra_args: --index-url https://pypi.org/simple
- name: Add a value to Consul
consul_kv:
host: "{{ inventory_hostname }}"
key: ansible_test
value: Hello from Ansible!
delegate_to: localhost
run_once: true
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- name: Setup Vault cluster
hosts: vault_instances
roles:
- name: ansible-vault
vars:
# Doesn't support multi-arch installs
vault_install_hashi_repo: true
vault_bin_path: /usr/bin
vault_harden_file_perms: true
vault_address: 0.0.0.0
vault_backend: consul
become: true
tasks:
- name: Unseal vault
command:
argv:
- "vault"
- "operator"
- "unseal"
- "-address=http://127.0.0.1:8200/"
- "{{ item }}"
loop: "{{ vault_keys }}"
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no_log: true
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when: vault_keys is defined
# Not on Ubuntu 20.04
# - name: Install Podman
# hosts: nomad_instances
# become: true
#
# tasks:
# - name: Install Podman
# package:
# name: podman
# state: present
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- name: Build Nomad cluster
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hosts: nomad_instances
any_errors_fatal: true
become: true
roles:
- name: ansible-nomad
vars:
nomad_version: "1.2.6"
nomad_install_remotely: true
nomad_install_upgrade: true
nomad_allow_purge_config: true
nomad_user: root
nomad_manage_user: true
nomad_group: bin
nomad_manage_group: true
# Properly map install arch
nomad_architecture_map:
x86_64: amd64
armhfv6: arm
armv7l: arm
nomad_encrypt_enable: true
# nomad_use_consul: true
# Metrics
nomad_telemetry: true
nomad_telemetry_prometheus_metrics: true
nomad_telemetry_publish_allocation_metrics: true
nomad_telemetry_publish_node_metrics: true
# Enable container plugins
nomad_cni_enable: true
nomad_cni_version: 1.0.1
nomad_docker_enable: true
nomad_docker_dmsetup: false
# nomad_podman_enable: true
# Customize docker plugin
nomad_plugins:
docker:
config:
volumes:
enabled: true
selinuxlabel: "z"
extra_labels:
- "job_name"
- "job_id"
- "task_group_name"
- "task_name"
- "namespace"
- "node_name"
- "node_id"
# Bind nomad
nomad_bind_address: 0.0.0.0
# Default interface for binding tasks
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# nomad_network_interface: lo
# Create networks for binding task ports
nomad_host_networks:
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# - name: public
# interface: eth0
# reserved_ports: "22"
- name: nomad-bridge
interface: nomad
reserved_ports: "22"
- name: loopback
interface: lo
reserved_ports: "22"
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# Enable ACLs
nomad_acl_enabled: true
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# Enable vault integration
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nomad_vault_enabled: "{{ vault_token is defined }}"
nomad_vault_token: "{{ vault_token | default('') }}"
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nomad_config_custom:
ui:
enabled: true
consul:
ui_url: "http://{{ ansible_hostname }}:8500/ui"
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vault:
ui_url: "http://{{ ansible_hostname }}:8200/ui"
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consul:
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tags:
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- "traefik.enable=true"
- "traefik.consulcatalog.connect=true"
- "traefik.http.routers.nomadclient.entrypoints=websecure"
tasks:
- name: Start Nomad
systemd:
state: started
name: nomad
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- name: Bootstrap Nomad ACLs
hosts: nomad_instances
tasks:
- name: Bootstrap ACLs
command:
argv:
- "nomad"
- "acl"
- "bootstrap"
- "-json"
run_once: true
ignore_errors: true
register: bootstrap_result
- name: Save bootstrap result
copy:
content: "{{ bootstrap_result.stdout }}"
dest: "./nomad_bootstrap.json"
when: bootstrap_result is succeeded
delegate_to: localhost
run_once: true
- name: Look for policy
command:
argv:
- nomad
- acl
- policy
- list
run_once: true
register: policies
- name: Read secret
command:
argv:
- jq
- -r
- .SecretID
- nomad_bootstrap.json
delegate_to: localhost
run_once: true
register: read_secretid
- name: Copy policy
copy:
src: ./acls/nomad-anon-bootstrap.hcl
dest: /tmp/anonymous.policy.hcl
delegate_to: "{{ play_hosts[0] }}"
register: anon_policy
run_once: true
- name: Create anon-policy
command:
argv:
- nomad
- acl
- policy
- apply
- -description="Anon RW"
- anonymous
- /tmp/anonymous.policy.hcl
environment:
NOMAD_TOKEN: "{{ read_secretid.stdout }}"
when: policies.stdout == "No policies found" or anon_policy.changed
delegate_to: "{{ play_hosts[0] }}"
run_once: true