Merge pull request 'DockerのログファイルをLokiに送信する' (#71) from output-docker-logs-and-capture into master

Reviewed-on: #71

cookbooks/docker/attributes.rb

@@ -0,0 +1,8 @@
+# -------------------------------------------
+# Specifying the default settings:
+# -------------------------------------------
+node.reverse_merge!({
+  'docker' => {
+    'loki' => '192.168.10.101'
+  }
+})

cookbooks/docker/default.rb

@@ -1,3 +1,5 @@
+include_recipe './attributes.rb'
+
 include_recipe './install.rb'
 
 include_recipe './setup.rb'

cookbooks/docker/files/etc/systemd/system/vector-docker.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=Vector
+Documentation=https://vector.dev
+After=network-online.target
+Requires=network-online.target
+
+[Service]
+ExecStart=/usr/bin/vector --config /etc/vector/docker.toml
+ExecReload=/bin/kill -HUP $MAINPID
+Restart=always
+StandardOutput=syslog
+StandardError=syslog
+SyslogIdentifier=vector
+
+[Install]
+WantedBy=multi-user.target

cookbooks/docker/setup.rb

@@ -37,3 +37,32 @@ remote_file '/etc/cron.d/docker-housekeep' do
   group 'root'
   mode '644'
 end
+
+# Deploy config file for `vector`:
+template '/etc/vector/docker.toml' do
+  owner 'root'
+  group 'root'
+  mode '644'
+
+  variables(LOKI: node['docker']['loki'],
+            HOSTNAME: node[:hostname]
+           )
+
+  source 'templates/etc/vector/docker.toml.erb'
+
+  notifies :restart, 'service[vector-docker]'
+end
+
+# Deploy `systemd` configuration for `prometheus`:
+remote_file '/etc/systemd/system/vector-docker.service' do
+  owner  'root'
+  group  'root'
+  mode   '644'
+
+  notifies :restart, 'service[vector-docker]'
+end
+
+# Service setting:
+service 'vector-docker' do
+  action [ :enable, :restart ]
+end

cookbooks/docker/templates/etc/vector/docker.toml.erb

@@ -0,0 +1,22 @@
+data_dir = "/var/lib/vector"
+
+[sources.docker]
+  type = "docker"
+
+[transforms.docker-transform]
+  type = "remove_fields"
+  inputs = ["docker"]
+  fields = ["container_created_at", "container_id", "container_name"]
+
+[sinks.docker-logs]
+  type = "loki"
+  inputs = ["docker-transform"]
+  endpoint = "http://<%= @LOKI %>:3100"
+  healthcheck = true
+  remove_timestamp = true
+
+  encoding.codec = "text"
+
+  labels.level = "info"
+  labels.job = "docker"
+  labels.hostname = "<%= @HOSTNAME %>"

cookbooks/vector/default.rb

@@ -3,4 +3,5 @@ include_recipe './attributes.rb'
 
 # Install loki here:
 include_recipe './install.rb'
+include_recipe './setup.rb'
 

cookbooks/vector/setup.rb

@@ -0,0 +1,8 @@
+# Create `/var/log/vector`:
+%w( /var/log/vector ).each do |d|
+  directory d do
+    owner  'root'
+    group  'root'
+    mode   '0755'
+  end
+end

cookbooks/vector/syslog_setup.rb

@@ -1,12 +1,3 @@
-# Create `/var/log/vector`:
-%w( /var/log/vector ).each do |d|
-  directory d do
-    owner  'root'
-    group  'root'
-    mode   '0755'
-  end
-end
-
 # Deploy `vector` configuration for `syslog`:
 remote_file '/etc/vector/syslog.toml' do
   owner  'root'