Rollout main=>qa 13.09.2022
Görz, Friedrich
3 years ago
parent
5367c9929e
commit
01c972771b
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---
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prometheus_lvm_hcloudvol_size: 30
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prometheus_lvm_hcloudvol_count: 2
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prometheus_tsdb_rentention_time: '90d'
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---
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- name: "Creating some hcloud volumes for LVM purpose"
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hcloud_volume:
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api_token: "{{ hetzner_authentication_ansible }}"
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name: "{{ lvm_with_hetzner_volumes__volprefix }}-{{ inventory_hostname }}--vol{{ item }}"
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server: "{{ inventory_hostname }}"
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labels:
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stage: "{{ stage }}"
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used_for: "{{ lvm_with_hetzner_volumes__volprefix }}"
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bound_on: "{{ inventory_hostname }}"
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vol_no: "{{ item | string }}"
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size: "{{ lvm_with_hetzner_volumes__volsize }}"
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state: present
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delete_protection: yes
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loop: "{{ range(1, lvm_with_hetzner_volumes__volcount+1) | list }}"
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register: created_volume
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delegate_to: localhost
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become: false
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- name: "Getting all hcloud volumes for {{ inventory_hostname }}"
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hcloud_volume_info:
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api_token: "{{ hetzner_authentication_ansible }}"
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label_selector: "stage={{ stage }},used_for={{ lvm_with_hetzner_volumes__volprefix }},bound_on={{ inventory_hostname }}"
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register: hcloud_volumes_found
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delegate_to: localhost
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become: false
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- name: "Getting all hcloud volumes for {{ inventory_hostname }}"
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debug:
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msg: "{{ hcloud_volumes_found }}"
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- name: "Setting LVM related VARs"
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set_fact:
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pvs: "{{ hcloud_volumes_found.hcloud_volume_info | json_query(jmesquery) }}"
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vg_name: "vg.{{ lvm_with_hetzner_volumes__volprefix }}"
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lv_name: "lv.{{ lvm_with_hetzner_volumes__volprefix }}"
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vars:
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jmesquery: "[*].linux_device"
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- name: "Creating a volume group on top of all found hcloud volumes"
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community.general.lvg:
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vg: "{{ vg_name }}"
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pvs: "{{ pvs }}"
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pvresize: yes
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register: create_vg
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- name: "Create logical volume" # noqa no-handler
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community.general.lvol:
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vg: "{{ vg_name }}"
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lv: "{{ lv_name }}"
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size: '100%PVS'
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when:
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- create_vg.changed
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- name: "Format volume"
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filesystem:
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fstype: ext4
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dev: "/dev/{{ vg_name }}/{{ lv_name }}"
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- name: "Resize volume" # noqa no-handler
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filesystem:
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fstype: ext4
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dev: "/dev/{{ vg_name }}/{{ lv_name }}"
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resizefs: yes
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when:
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- create_vg.changed
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# set noqa linter 'tag' due to unknown file permissions/ownership for mount path ;
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# must be set in role etc in which this role will be called!!!
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- name: "Ensure mountpath exists without setting permission/ownership" # noqa risky-file-permissions
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file:
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path: "{{ lvm_with_hetzner_volumes__mountpath }}"
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state: directory
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- name: "Mount created LVM volume"
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mount:
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path: "{{ lvm_with_hetzner_volumes__mountpath }}"
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src: "/dev/{{ vg_name }}/{{ lv_name }}"
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fstype: ext4
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state: mounted
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@ -0,0 +1,53 @@
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#!/usr/bin/env python3
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import requests
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access_token = '{{ hetzner_authentication_ansible_vault }}'
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node_exporter_txt_dir = '/var/lib/prometheus/node-exporter'
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metrics_file = node_exporter_txt_dir + "/hetzner_metrics.prom"
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query= {'per_page': '1000'}
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headers = {'Authorization': 'Bearer ' + access_token}
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try:
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response_volumes = requests.get("https://api.hetzner.cloud/v1/volumes", headers=headers, params=query)
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response_servers = requests.get("https://api.hetzner.cloud/v1/servers", headers=headers, params=query)
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except requests.exceptions.RequestException as e: # This is the correct syntax
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f = open(metrics_file, "w")
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f.write("\n")
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f.close()
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raise SystemExit(e)
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if response_volumes.ok and response_servers.ok:
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volume_json = response_volumes.json()["volumes"]
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unattached_volume_count = 0
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for x in range(len(volume_json)):
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if volume_json[x]["server"] == None:
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unattached_volume_count+=1
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locked_servers_count = 0
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servers_json = response_servers.json()["servers"]
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for x in range(len(servers_json)):
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if servers_json[x]["locked"] == "true":
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locked_servers_count+=1
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ratelimit_limit = response_servers.headers['ratelimit-limit']
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ratelimit_remaining = response_servers.headers['ratelimit-remaining']
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f = open(metrics_file, "w")
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f.write(
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"hetzner_api_ratelimit_remaining " + str(ratelimit_remaining) + "\n"
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+ "hetzner_api_ratelimit_limit " + str(ratelimit_limit) + "\n"
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+ "hetzner_api_unattached_volumes " + str(unattached_volume_count) + "\n"
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+ "hetzner_api_locked_servers " + str(locked_servers_count) + "\n"
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)
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f.close()
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else:
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f = open(metrics_file, "w")
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f.write("\n")
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f.close()
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