Initial

6 files changed, 236 insertions, 0 deletions

diff --git a/defaults/main.yml b/defaults/main.yml
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+++ b/defaults/main.yml
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+---
+
+prometheus_ui_listen: ':9090'
+prometheus_home_dir: /var/lib/prometheus
+prometheus_data_dir: '{{prometheus_home_dir}}/data'
+prometheus_user: prometheus
+prometheus_version: "2.7.2"
+prometheus_os: "{{ansible_facts['system']|lower}}" # Should resolve to "linux"
+prometheus_checksum: fca1b17bef8bd19c2ad90caf13d7ffa85e8c4655aa03315fb5e228bd06c4e0ae
+prometheus_architecture: amd64
+# https://github.com/prometheus/prometheus/releases/download/v2.7.2/prometheus-2.7.2.linux-amd64.tar.gz
+prometheus_url: "https://github.com/prometheus/prometheus/releases/download/v{{prometheus_version}}/prometheus-{{prometheus_version}}.{{prometheus_os}}-{{prometheus_architecture}}.tar.gz"
+
+
+prometheus_netdata_hosts:
+  - localhost:19999
+
+# Only inserted into the template if defined
+# prometheus_netdata_tls_hosts:
+#   - example.com:19443
diff --git a/tasks/main.yml b/tasks/main.yml
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+++ b/tasks/main.yml
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+- name: Setup Prometheus User
+  user:
+    name: "{{prometheus_user}}"
+    home: "{{prometheus_home_dir}}"
+    state: present
+- set_fact: "prometheus_extract_dir=prometheus-{{prometheus_version}}.{{prometheus_os}}-{{prometheus_architecture}}"
+- name: Create configuration directory
+  file:
+    state: directory
+    dest: "{{prometheus_home_dir}}/conf"
+    mode: '0700'
+    owner: "{{prometheus_user}}"
+- name: Create Data directory
+  file:
+    state: directory
+    dest: "{{prometheus_data_dir}}"
+    mode: '0700'
+    owner: "{{prometheus_user}}"
+- name: Download Prometheus
+  get_url:
+    url: "{{prometheus_url}}"
+    dest: "{{prometheus_home_dir}}/prometheus-{{prometheus_version}}.tgz"
+    mode: '0600'
+    owner: "{{prometheus_user}}"
+# There's a bug  in become_user that doesn't set permissions on the temp directory
+# which is asinine when my user has sudo persmissions.
+- name: Extract Prometheus
+  shell: |
+    if ! [ -e "{{prometheus_home_dir}}/{{prometheus_extract_dir}}" ] ; then
+      sudo su - '{{prometheus_user}}' -c 'tar xzf prometheus-{{prometheus_version}}.tgz'
+    fi
+  changed_when: false
+- name: Link prometheus directory
+  file:
+    state: link
+    src: '{{prometheus_extract_dir}}'
+    dest: '{{prometheus_home_dir}}/prometheus'
+    force: yes
+- name: Link configuration files
+  file:
+    state: link
+    src: '../conf/{{item}}'
+    dest: '{{prometheus_home_dir}}/prometheus/{{item}}'
+    force: yes
+  loop:
+    - prometheus.yml
+- name: Write prometheus template
+  template:
+    src: prometheus/prometheus.yml
+    dest: '{{prometheus_home_dir}}/conf/prometheus.yml'
+    owner: '{{prometheus_user}}'
+    mode: '0600'
+- name: Write Systemd Unite
+  template:
+    src: prometheus/systemd.unit
+    dest: /etc/systemd/system/prometheus.service
+  when: ansible_facts['distribution'].lower() == "ubuntu"
+- name: 'Enable Prometheus [Ubuntu]'
+  systemd:
+    enabled: yes
+    daemon_reload: yes
+    name: prometheus
+  when: ansible_facts['distribution'].lower() == "ubuntu"
+- name: Create Runit Directory
+  file:
+    state: directory
+    dest: /etc/sv.local/prometheus
+    owner: root
+    group: adm
+    mode: '0755'
+  when: ansible_facts['distribution'].lower() == "void"
+- name: Write runit service
+  template:
+    src: prometheus/runit/run
+    dest: /etc/sv.local/prometheus/run
+    owner: root
+    group: adm
+    mode: '0755'
+  when: ansible_facts['distribution'].lower() == "void"
+- name: Enable Runit service
+  file:
+    state: link
+    src: /etc/sv.local/prometheus
+    dest: /var/service/prometheus
+  when: ansible_facts['distribution'].lower() == "void"
diff --git a/tasks/main.yml.bak b/tasks/main.yml.bak
new file mode 100644
index 0000000..587dfc5
--- /dev/null
+++ b/tasks/main.yml.bak
@@ -0,0 +1,58 @@
+- name: Setup Prometheus User
+  user:
+    name: "{{prometheus_user}}"
+    home: "{{prometheus_home_dir}}"
+    state: present
+- name: Get User home directory
+  shell: "awk -F: '{if($1==\"{{prometheus_user}}\"){print $6}}' /etc/passwd"
+  changed_when: false
+  register: get_home_command_output
+- set_fact: "prometheus_user_home={{get_home_command_output['stdout']}}"
+- set_fact: "prometheus_dir=prometheus-{{prometheus_version}}.{{prometheus_os}}-{{prometheus_architecture}}"
+- name: Create configuration directory
+  file:
+    state: directory
+    dest: "{{prometheus_user_home}}/conf"
+    mode: '0700'
+    owner: "{{prometheus_user}}"
+- name: Create Data directory
+  file:
+    state: directory
+    dest: "{{prometheus_data_dir}}"
+    mode: '0700'
+    owner: "{{prometheus_user}}"
+- name: Download Prometheus
+  get_url:
+    url: "{{prometheus_url}}"
+    dest: "{{prometheus_user_home}}/prometheus-{{prometheus_version}}.tgz"
+    mode: '0600'
+    owner: "{{prometheus_user}}"
+# There's a bug  in become_user that doesn't set permissions on the temp directory
+# which is asinine when my user has sudo persmissions.
+- name: Extract Prometheus
+  shell: |
+    if ! [ -e "{{prometheus_user_home}}/{{prometheus_dir}}" ] ; then
+      sudo su - '{{prometheus_user}}' -c 'tar xzf prometheus-{{prometheus_version}}.tgz'
+    fi
+  changed_when: false
+- name: Link prometheus directory
+  file:
+    state: link
+    src: '{{prometheus_dir}}'
+    dest: '{{prometheus_user_home}}/prometheus'
+    force: yes
+- name: Link configuration files
+  file:
+    state: link
+    src: '../conf/{{item}}'
+    dest: '{{prometheus_user_home}}/prometheus/{{item}}'
+    force: yes
+  loop:
+    - prometheus.yml
+- name: Write prometheus template
+  template:
+    src: prometheus/prometheus.yml
+    dest: '{{prometheus_user_home}}/conf/prometheus.yml'
+    owner: '{{prometheus_user}}'
+    mode: '0600'
+
diff --git a/templates/prometheus/prometheus.yml b/templates/prometheus/prometheus.yml
new file mode 100644
index 0000000..2099b8b
--- /dev/null
+++ b/templates/prometheus/prometheus.yml
@@ -0,0 +1,53 @@
+# my global config
+global:
+  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+  - static_configs:
+    - targets:
+      # - alertmanager:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
+  - job_name: 'prometheus'
+
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+
+    static_configs:
+    - targets: ['localhost:9090']
+
+  - job_name: 'netdata'
+
+    metrics_path: /api/v1/allmetrics
+    params:
+      format: [ prometheus ]
+
+    static_configs:
+{% for h in prometheus_netdata_hosts %}      - targets: ['{{h}}']
+{%endfor%}
+
+{% if prometheus_netdata_tls_hosts is defined %}
+  - job_name: 'netdata_tls'
+
+    scheme: https
+
+    metrics_path: /api/v1/allmetrics
+    params:
+      format: [ prometheus ]
+
+    static_configs:
+{% for h in prometheus_netdata_tls_hosts %}      - targets: ['{{h}}']
+{%endfor%}
+{% endif %}
diff --git a/templates/prometheus/runit/run b/templates/prometheus/runit/run
new file mode 100644
index 0000000..f70f1ae
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+++ b/templates/prometheus/runit/run
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+#!/bin/sh
+exec {{prometheus_home_dir}}/prometheus/prometheus \
+       --config.file "{{prometheus_home_dir}}/conf/prometheus.yml" \
+       --storage.tsdb.path "{{prometheus_data_dir}}" \
+       --web.listen-address "{{prometheus_ui_listen}}"
diff --git a/templates/prometheus/systemd.unit b/templates/prometheus/systemd.unit
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index 0000000..856f299
--- /dev/null
+++ b/templates/prometheus/systemd.unit
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+# /etc/systemd/system/prometheus.service
+[Unit]
+Description=Prometheus Server
+Documentation=https://prometheus.io/docs/introduction/overview/
+After=network-online.target
+
+[Service]
+User=prometheus
+Restart=on-failure
+ExecStart={{prometheus_home_dir}}/prometheus/prometheus \
+       --config.file "{{prometheus_home_dir}}/conf/prometheus.yml" \
+       --storage.tsdb.path "{{prometheus_data_dir}}" \
+       --web.listen-address "{{prometheus_ui_listen}}"
+[Install]
+WantedBy=multi-user.target