Use a custom resource to create a 389 Directory Server instance

This replaces the default recipe and will make it much easier to create
other types of instances, for example for replication

site-cookbooks/kosmos-dirsrv/resources/instance.rb

@@ -0,0 +1,118 @@
+resource_name :dirsrv_instance
+
+property :instance_name,  String,  name_property: true
+property :hostname,       String,  required: true
+property :admin_password, String,  required: true
+property :suffix,         String,  required: true
+property :admin_username, String,  default: 'admin'
+property :bind_dn,        String,  default: 'cn=Directory Manager'
+property :port,           Integer, default: 389
+
+action :create do
+  include_recipe "apt"
+  package "389-ds-base"
+
+  include_recipe "ulimit"
+  user_ulimit "dirsrv" do
+    filehandle_limit 40960
+  end
+
+  config = {
+    instance_name:  new_resource.instance_name,
+    hostname:       new_resource.hostname,
+    suffix:         new_resource.suffix,
+    port:           new_resource.port,
+    bind_dn:        new_resource.bind_dn,
+    admin_username: new_resource.admin_username,
+    admin_password: new_resource.admin_password,
+    base_dir:       "/var/lib/dirsrv",
+    conf_dir:       "/etc/dirsrv"
+  }
+
+  inst_dir = "/etc/dirsrv/slapd-#{new_resource.instance_name}"
+  service_name = "dirsrv@#{new_resource.instance_name}"
+
+  unless ::Dir.exists?(inst_dir)
+    setup_config = "#{config[:conf_dir]}/setup-#{new_resource.instance_name}.inf"
+    template setup_config do
+      source "setup.inf.erb"
+      mode "0600"
+      owner "root"
+      group "root"
+      sensitive true
+      variables config
+    end
+
+    execute "setup-#{new_resource.instance_name}" do
+      command "setup-ds --silent --file #{setup_config}"
+      creates ::File.join inst_dir, 'dse.ldif'
+      action :nothing
+      subscribes :run, "template[#{setup_config}]", :immediately
+      notifies :restart, "service[#{service_name}]", :immediately
+      notifies :delete, "template[#{setup_config}]", :immediately
+      notifies :run, "execute[add users group]", :delayed
+    end
+  end
+
+  service service_name do
+    action [:enable, :start]
+  end
+
+  cookbook_file "#{Chef::Config[:file_cache_path]}/users.ldif" do
+    source "users.ldif"
+    owner "root"
+    group "root"
+  end
+
+  execute "add users group" do
+    command "ldapadd -x -w #{new_resource.admin_password} -D '#{new_resource.bind_dn}' -f '#{Chef::Config[:file_cache_path]}/users.ldif' -p #{new_resource.port} -h localhost"
+    sensitive true
+    action :nothing
+  end
+
+
+  unless node.chef_environment == "development"
+    cookbook_file "#{Chef::Config[:file_cache_path]}/tls.ldif" do
+      source "tls.ldif"
+      owner "root"
+      group "root"
+    end
+
+    include_recipe "kosmos-nginx"
+
+    nginx_certbot_site new_resource.hostname do
+      notifies :run, "execute[generate p12 cert]", :immediately
+    end
+
+    # Merge the full chain and private key into one cert, to import into the
+    # dirsrv dir
+    execute "generate p12 cert" do
+      command "openssl pkcs12 -export -in /etc/letsencrypt/live/#{new_resource.hostname}/fullchain.pem -inkey /etc/letsencrypt/live/#{new_resource.hostname}/privkey.pem -out #{Chef::Config[:file_cache_path]}/#{new_resource.hostname}.p12 -name 'Server-Cert'"
+      action :nothing
+      notifies :run, "execute[import p12 cert]", :immediately
+    end
+
+    execute "import p12 cert" do
+      command "pk12util -i #{Chef::Config[:file_cache_path]}/#{new_resource.hostname}.p12 -d #{inst_dir}"
+      action :nothing
+      notifies :run, "execute[add tls config]", :immediately
+    end
+
+    execute "add tls config" do
+      command "ldapadd -x -w #{new_resource.admin_password} -D '#{new_resource.bind_dn}' -f '#{Chef::Config[:file_cache_path]}/tls.ldif' -p #{new_resource.port} -h localhost"
+      sensitive true
+      action :nothing
+    end
+
+    include_recipe "firewall"
+    firewall_rule "ldap" do
+      port     [config[:port], 636]
+      protocol :tcp
+      command  :allow
+    end
+
+    # backup the data dir and the config files
+    node.override["backup"]["archives"]["dirsrv"] = ["/etc/dirsrv", "/var/lib/dirsrv"]
+    include_recipe "backup"
+  end
+end