+include_recipe "apache"
+include_recipe "apt::grafana"
+include_recipe "networking"
+
+passwords = data_bag_item("prometheus", "passwords")
+tokens = data_bag_item("prometheus", "tokens")
+admins = data_bag_item("apache", "admins")
+
+prometheus_exporter "fastly" do
+ port 8080
+ listen_switch "listen"
+ environment "FASTLY_API_TOKEN" => tokens["fastly"]
+end
+
+prometheus_exporter "fastly_healthcheck" do
+ port 9696
+ scrape_interval "1m"
+ environment "FASTLY_API_TOKEN" => tokens["fastly"]
+end
+
+prometheus_exporter "statuscake" do
+ port 9595
+ scrape_interval "5m"
+ scrape_timeout "2m"
+ environment "STATUSCAKE_APIKEY" => tokens["statuscake"]
+end
+
+cache_dir = Chef::Config[:file_cache_path]
+
+prometheus_version = "2.45.0"
+alertmanager_version = "0.25.0"
+karma_version = "0.114"
+
+directory "/opt/prometheus-server" do
+ owner "root"
+ group "root"
+ mode "755"
+end
+
+prometheus_arch = if arm?
+ "arm64"
+ else
+ "amd64"
+ end
+
+remote_file "#{cache_dir}/prometheus.linux.tar.gz" do
+ source "https://github.com/prometheus/prometheus/releases/download/v#{prometheus_version}/prometheus-#{prometheus_version}.linux-#{prometheus_arch}.tar.gz"
+ owner "root"
+ group "root"
+ mode "644"
+ backup false
+end
+
+archive_file "#{cache_dir}/prometheus.linux.tar.gz" do
+ action :nothing
+ destination "/opt/prometheus-server/prometheus"
+ overwrite true
+ strip_components 1
+ owner "root"
+ group "root"
+ subscribes :extract, "remote_file[#{cache_dir}/prometheus.linux.tar.gz]", :immediately
+end
+
+remote_file "#{cache_dir}/alertmanager.linux.tar.gz" do
+ source "https://github.com/prometheus/alertmanager/releases/download/v#{alertmanager_version}/alertmanager-#{alertmanager_version}.linux-#{prometheus_arch}.tar.gz"
+ owner "root"
+ group "root"
+ mode "644"
+ backup false
+end
+
+archive_file "#{cache_dir}/alertmanager.linux.tar.gz" do
+ action :nothing
+ destination "/opt/prometheus-server/alertmanager"
+ overwrite true
+ strip_components 1
+ owner "root"
+ group "root"
+ subscribes :extract, "remote_file[#{cache_dir}/alertmanager.linux.tar.gz]", :immediately
+end
+
+remote_file "#{cache_dir}/karma-linux.tar.gz" do
+ source "https://github.com/prymitive/karma/releases/download/v#{karma_version}/karma-linux-#{prometheus_arch}.tar.gz"
+ owner "root"
+ group "root"
+ mode "644"
+ backup false
+end
+
+archive_file "#{cache_dir}/karma-linux.tar.gz" do
+ action :nothing
+ destination "/opt/prometheus-server/karma"
+ overwrite true
+ owner "root"
+ group "root"
+ subscribes :extract, "remote_file[#{cache_dir}/karma-linux.tar.gz]", :immediately
+end
+
+search(:node, "roles:gateway") do |gateway|
+ allowed_ips = gateway.ipaddresses(:role => :internal).map(&:subnet)
+
+ node.default[:networking][:wireguard][:peers] << {
+ :public_key => gateway[:networking][:wireguard][:public_key],
+ :allowed_ips => allowed_ips,
+ :endpoint => "#{gateway.name}:51820"
+ }
+end
+
+jobs = {}
+junos_targets = []
+snmp_targets = []
+
+search(:node, "recipes:prometheus\\:\\:default").sort_by(&:name).each do |client|
+ if client[:prometheus][:mode] == "wireguard"
+ node.default[:networking][:wireguard][:peers] << {
+ :public_key => client[:networking][:wireguard][:public_key],
+ :allowed_ips => client[:networking][:wireguard][:address],
+ :endpoint => "#{client.name}:51820"
+ }
+ end
+
+ client[:prometheus][:exporters].each do |key, exporter|
+ if exporter.is_a?(Hash)
+ name = exporter[:name]
+ address = exporter[:address]
+ sni = exporter[:sni]
+ labels = Array(exporter[:labels])
+ scrape_interval = exporter[:scrape_interval]
+ scrape_timeout = exporter[:scrape_timeout]
+ metric_relabel = exporter[:metric_relabel] || []
+ else
+ name = key
+ address = exporter
+ sni = nil
+ labels = []
+ scrape_interval = nil
+ scrape_timeout = nil
+ metric_relabel = []
+ end
+
+ jobs[name] ||= []
+ jobs[name] << {
+ :address => address,
+ :sni => sni,
+ :instance => client.name.split(".").first,
+ :labels => labels,
+ :scrape_interval => scrape_interval,
+ :scrape_timeout => scrape_timeout,
+ :metric_relabel => metric_relabel
+ }
+ end
+
+ Hash(client[:prometheus][:junos]).each do |instance, details|
+ junos_targets << {
+ :instance => instance,
+ :target => details[:address],
+ :address => client[:prometheus][:addresses]["junos"],
+ :labels => Array(details[:labels])
+ }
+ end
+
+ Hash(client[:prometheus][:snmp]).each do |instance, details|
+ snmp_targets << {
+ :instance => instance,
+ :target => details[:address],
+ :modules => details[:modules],
+ :address => client[:prometheus][:addresses]["snmp"],
+ :labels => Array(details[:labels])
+ }
+ end
+end
+
+certificates = search(:node, "letsencrypt:certificates").each_with_object({}) do |n, c|
+ n[:letsencrypt][:certificates].each do |name, details|
+ c[name] ||= details.merge(:nodes => [])
+
+ c[name][:nodes] << {
+ :name => n[:fqdn],
+ :address => n.external_ipaddress || n.internal_ipaddress
+ }
+ end
+end
+
+template "/etc/prometheus/ssl.yml" do
+ source "ssl.yml.erb"
+ owner "root"
+ group "root"
+ mode "644"
+ variables :certificates => certificates
+end
+
+prometheus_exporter "ssl" do
+ address "127.0.0.1"
+ port 9219
+ options "--config.file=/etc/prometheus/ssl.yml"
+ register_target false
+end
+