Role that installs and configure the java reverse proxy servlet.

smartgears/java_reverse_proxy/defaults/main.yml

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+---
+java_rproxy_service_install: False
+java_rproxy_service_version: latest
+java_rproxy_service_name: reverse-proxy
+java_rproxy_group_id: org.gcube.portal.rproxy
+java_rproxy_service_extension: war
+java_rproxy_service_file: '{{ java_rproxy_service_name }}-{{ java_rproxy_service_version }}.{{ java_rproxy_service_extension }}'
+smartgears_rproxy_base_url: 'http://maven.research-infrastructures.eu/nexus/content/repositories/gcube-snapshots'
+
+java_rproxy_display_name: 'Java Reverse Proxy Service'
+java_rproxy_targets:
+  - { servlet_name: 'ReverseProxy', target_uri: 'https://revproxied-app.example.org/', log: 'true', forwardip: 'true', preserve_host: 'true', preserve_cookies: 'true', handle_redirects: 'true', socket_timeout: '60000', read_timeout: '60000', url_pattern: [ '/dest1/*', '/dest2/*' ]  }

smartgears/java_reverse_proxy/tasks/main.yml

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+---
+- block: 
+    - name: Remove the old java_rproxy service files
+      file: path={{ item }} state=absent
+      with_items:
+        - '{{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}'
+        - '{{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}.{{ java_rproxy_service_extension }}'        
+      notify: Restart smartgears
+
+  become: True
+  become_user: '{{ d4science_user }}'
+  when: not java_rproxy_service_install
+  tags: [ 'smartgears', 'java_rproxy_service', 'tomcat' ]
+  
+- block:
+    - name: Get the java_rproxy-service war
+      #maven_artifact: artifact_id={{ java_rproxy_service_name }} version={{ java_rproxy_service_version | default(omit) }} group_id={{ java_rproxy_group_id }} extension={{ java_rproxy_service_extension | default('war') }} repository_url={{ smartgears_global_base_url }} dest={{ smartgears_downloads_dir }}/{{ java_rproxy_service_file }} verify_checksum=always
+      maven_artifact: artifact_id={{ java_rproxy_service_name }} version={{ java_rproxy_service_version | default(omit) }} group_id={{ java_rproxy_group_id }} extension={{ java_rproxy_service_extension | default('war') }} repository_url={{ smartgears_rproxy_base_url }} dest={{ smartgears_downloads_dir }}/{{ java_rproxy_service_file }} verify_checksum=always
+      register: java_rproxy_service_download
+  
+    - name: Remove the old java_rproxy service files
+      file: path={{ item }} state=absent
+      with_items:
+        - '{{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}'
+        - '{{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}.{{ java_rproxy_service_extension }}'
+      notify: Restart smartgears
+      when: java_rproxy_service_download is changed
+
+    - name: Create the java_rproxy webapp directory
+      file: dest={{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }} state=directory
+      when: java_rproxy_service_download is changed
+
+    - name: Unarchive the java_rproxy war file
+      unarchive: copy=no src={{ smartgears_downloads_dir }}/{{ java_rproxy_service_file }} dest={{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}
+      args:
+        creates: '{{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}/WEB-INF/web.xml'
+      notify: Restart smartgears
+
+    - name: Install the java_rproxy web.xml template
+      template: src=web.xml dest={{ smartgears_instance_path }}/webapps/{{ java_rproxy_service_name }}/WEB-INF/web.xml mode=0440
+      notify: Restart smartgears
+
+
+# TODO: unarchive the war file and install the web.xml.
+
+  become: True
+  become_user: '{{ d4science_user }}'
+  when: java_rproxy_service_install 
+  tags: [ 'smartgears', 'java_rproxy_service', 'tomcat' ]

smartgears/java_reverse_proxy/templates/web.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
+          http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
+	version="3.0">
+
+	<display-name>{{ java_rproxy_display_name }}</display-name>
+        {% for servlet in java_rproxy_targets %}
+	<servlet>
+		<servlet-name>{{ servlet.servlet_name }}</servlet-name>
+		<servlet-class>org.mitre.dsmiley.httpproxy.ProxyServlet</servlet-class>
+		<init-param>
+			<param-name>targetUri</param-name>
+			<param-value>{{ servlet. target_uri }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>log</param-name>
+			<param-value>{{ servlet.log }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>forwardip</param-name>
+			<param-value>{{ servlet.forwardip }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>preserveHost</param-name>
+			<param-value>{{ servlet.preserve_host }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>preserveCookies</param-name>
+			<param-value>{{ servlet.preserve_cookies }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>http.protocol.handle-redirects</param-name>
+			<param-value>{{ servlet.handle_redirects }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>http.socket.timeout</param-name>
+			<param-value>{{ servlet.socket_timeout }}</param-value>
+		</init-param>
+		<init-param>
+			<param-name>http.read.timeout</param-name>
+			<param-value>{{ servlet.read_timeout }}</param-value>
+		</init-param>
+	</servlet>
+	<servlet-mapping>
+		<servlet-name>{{ servlet.servlet_name }}</servlet-name>
+		{% for pattern in servlet.url_patterns %}
+                <url-pattern>{{ pattern }}</url-pattern>
+                {% endfor %}
+	</servlet-mapping>
+        {% endfor %}
+</web-app>