Add multi-tech support to Dynatrace OneAgent integration

docs/framework-dynatrace_one_agent.md

@@ -31,6 +31,7 @@ The credential payload of the service may contain the following entries:
 | `networkzone` | (Optional) Network zones are Dynatrace entities that represent your network structure. They help you to route the traffic efficiently, avoiding unnecessary traffic across data centers and network regions. Enter the network zone you wish to pass to the server during the OneAgent Download.
 | `skiperrors` | (Optional) The errors during agent download are skipped and the injection is disabled. Use this option at your own risk. Possible values are 'true' and 'false'. This option is disabled by default!
 | `enablefips`| (Optional) Enables the use of [FIPS 140 cryptographic algorithms](https://docs.dynatrace.com/docs/shortlink/oneagentctl#fips-140). Possible values are 'true' and 'false'. This option is disabled by default!
+| addtechnologies | (Optional)  Adds additional OneAgent code-modules via a comma-separated list. See [supported values](https://docs.dynatrace.com/docs/dynatrace-api/environment-api/deployment/oneagent/download-oneagent-version#parameters) in the "included" row|
 
 ## Configuration
 For general information on configuring the buildpack, including how to specify configuration values through environment variables, refer to [Configuration and Extension][].

lib/java_buildpack/framework/dynatrace_one_agent.rb

@@ -85,6 +85,8 @@ def supports?
 
       private
 
+      ADDTECHNOLOGIES = 'addtechnologies'
+
       APIURL = 'apiurl'
 
       APITOKEN = 'apitoken'
@@ -113,12 +115,12 @@ def supports?
 
       SKIP_ERRORS = 'skiperrors'
 
-      private_constant :APIURL, :APITOKEN, :ENABLE_FIPS, :DT_APPLICATION_ID, :DT_CONNECTION_POINT, :DT_NETWORK_ZONE,
-                       :DT_LOGSTREAM, :DT_TENANT, :DT_TENANTTOKEN, :LD_PRELOAD, :ENVIRONMENTID, :FILTER, :NETWORKZONE,
-                       :SKIP_ERRORS
+      private_constant :ADDTECHNOLOGIES, :APIURL, :APITOKEN, :ENABLE_FIPS, :DT_APPLICATION_ID, :DT_CONNECTION_POINT,
+                       :DT_NETWORK_ZONE, :DT_LOGSTREAM, :DT_TENANT, :DT_TENANTTOKEN, :LD_PRELOAD, :ENVIRONMENTID,
+                       :FILTER, :NETWORKZONE, :SKIP_ERRORS
 
       def agent_download_url
-        download_uri = "#{api_base_url(credentials)}/v1/deployment/installer/agent/unix/paas/latest?include=java" \
+        download_uri = "#{api_base_url(credentials)}/v1/deployment/installer/agent/unix/paas/latest?#{technologies(credentials)}" \
                        '&bitness=64' \
                        "&Api-Token=#{credentials[APITOKEN]}"
 
@@ -127,6 +129,16 @@ def agent_download_url
         ['latest', download_uri]
       end
 
+      def technologies(credentials)
+        code_modules = "include=java"
+        if not credentials[ADDTECHNOLOGIES].empty?
+          credentials[ADDTECHNOLOGIES].split(",").each do |tech|
+            code_modules += "&include=#{tech}"
+          end
+        end
+        return code_modules
+      end
+
       def agent_manifest
         JSON.parse(File.read(@droplet.sandbox + 'manifest.json'))
       end

lib/java_buildpack/util/sanitizer.rb

@@ -36,11 +36,13 @@ def handle_params(params)
 
     query_params = ''
 
-    params.each do |key, _|
-      params[key] = '***' if key.match(keywords)
-      query_params += key + '=' + params[key] + '&'
+    params.split("&").each do |single_param|
+      k, v = single_param.split("=")
+      if k.match(keywords)
+        v = "***"
+      end
+      query_params += k + '=' +v + '&'
     end
-
     query_params
   end
 
@@ -53,8 +55,7 @@ def sanitize_uri
     rich_uri.password = nil
 
     if rich_uri.query
-      params = (URI.decode_www_form rich_uri.query).to_h
-      query_params = handle_params(params)
+      query_params = handle_params(rich_uri.query)
       rich_uri.query = query_params.chop
     end