3 files changed, 99 insertions, 0 deletions
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..866f00e
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,57 @@
+---
+- set_fact: "node_exporter_extract_dir=node_exporter-{{node_exporter_version}}.{{node_exporter_os}}-{{node_exporter_architecture}}"
+- name: Create configuration directory
+  file:
+    state: directory
+    dest: "{{node_exporter_home_dir}}/conf"
+    mode: '0700'
+- name: Download Node Exporter
+  get_url:
+    url: "{{node_exporter_url}}"
+    dest: "{{node_exporter_home_dir}}/node_exporter-{{node_exporter_version}}.tgz"
+    mode: '0600'
+    checksum: 'sha256:{{node_exporter_checksum}}'
+# 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 Node exporter
+  shell: |
+    #!/bin/sh
+    set -e
+    if ! [ -e "{{node_exporter_home_dir}}/{{node_exporter_extract_dir}}" ] ; then
+      cd "{{node_exporter_home_dir}}"
+      tar xzf node_exporter-{{node_exporter_version}}.tgz
+      exit 50
+    fi
+  register: res
+  changed_when: res is defined and res.rc == 50
+  ignore_errors: true
+  notify: Restart node_exporter
+- name: Link node_exporter directory
+  file:
+    state: link
+    src: '{{node_exporter_extract_dir}}'
+    dest: '{{node_exporter_home_dir}}/node_exporter'
+    force: yes
+- name: Link configuration files
+  file:
+    state: link
+    src: '../conf/{{item}}'
+    dest: '{{node_exporter_home_dir}}/node_exporter/{{item}}'
+    force: yes
+  loop:
+    - web_config.yml
+  notify: Restart node_exporter
+- name: Include tls tasks
+  include_tasks: tls.yml
+  when: node_exporter_tls
+- name: Write node_exporter configuration file
+  copy:
+    content: '{{node_exporter_web_config | to_nice_yaml}}'
+    dest: '{{node_exporter_home_dir}}/conf/web_config.yml'
+    mode: '0600'
+  notify: Restart node_exporter
+  tags:
+    - configuration
+  when: node_exporter_web_config is defined
+- name: Include Runit tasks
+  include_tasks: runit.yml
diff --git a/tasks/runit.yml b/tasks/runit.yml
new file mode 100644
index 0000000..ce5b8f4
--- /dev/null
+++ b/tasks/runit.yml
@@ -0,0 +1,25 @@
+---
+- name: Install Runit service directory
+  file:
+    state: directory
+    path: /etc/sv/node_exporter
+    mode: '0755'
+- name: Install Runit service command
+  template:
+    src: node_exporter.runit
+    dest: /etc/sv/node_exporter/run
+    mode: '755'
+- name: Install supervise symlink
+  file:
+    state: link
+    force: yes
+    src: /tmp/supervise.node_exporter
+    dest: /etc/sv/node_exporter/supervise
+    follow: false
+- name: Enable Node Exporter service
+  file:
+    state: link
+    force: yes
+    src: /etc/sv/node_exporter
+    dest: /var/service/node_exporter
+    follow: false
diff --git a/tasks/tls.yml b/tasks/tls.yml
new file mode 100644
index 0000000..42bb0fe
--- /dev/null
+++ b/tasks/tls.yml
@@ -0,0 +1,17 @@
+---
+- name: Copy CA certificate
+  copy:
+    content: '{{node_exporter_tls_ca}}'
+    dest: '{{node_exporter_home_dir}}/conf/ca.crt'
+  notify: Restart node_exporter
+- name: Copy TLS Key
+  copy:
+    content: '{{node_exporter_tls_key}}'
+    dest: '{{node_exporter_home_dir}}/conf/key'
+    mode: '0600'
+  notify: Restart node_exporter
+- name: Copy TLS cert
+  copy:
+    content: '{{node_exporter_tls_crt}}'
+    dest: '{{node_exporter_home_dir}}/conf/crt'
+  notify: Restart node_exporter