Add support for javamelody. On tomcat 8, add commons-daemon.jar. Crash on out of memory when running with JDK 8+.

library/roles/tomcat-multiple-instances/defaults/main.yml

@@ -48,6 +48,7 @@ tomcat_m_restart_timeout: 300
 # -server -Djava.awt.headless=true are always used. No need to specify them
 tomcat_m_java_opts_heap: "-Xms{{ tomcat_m_min_heap_size }} -Xmx{{ tomcat_m_heap_size }}"
 tomcat_m_java_opts_permgen: "-XX:MaxPermSize={{ tomcat_m_permgen_size }}"
+tomcat_m_additional_java_8_opts: "-XX:+CrashOnOutOfMemoryError"
 tomcat_m_java_opts: ""
 tomcat_m_java_gc_opts: "-XX:+UseConcMarkSweepGC"
 # Use "-XX:+UseConcMarkSweepGC" to enable the CMS garbage collector (improved

library/roles/tomcat-multiple-instances/tasks/main.yml

@@ -66,7 +66,7 @@
   copy: src={{ item[1] }} dest={{ item.0.instance_path }}/conf/{{ item[1] }} owner={{ item.0.user }} group={{ item.0.user }} mode=0640
   with_nested:
     - '{{ tomcat_m_instances }}'
-    - [ 'context.xml', 'web.xml' ]
+    - [ 'context.xml' ]
   register: restart_needed
   notify:
     - tomcat restart instances with changed configs 
@@ -113,9 +113,16 @@
     - tomcat restart instances with changed configs 
   tags: [ 'tomcat', 'tomcat_instances', 'tomcat_conf', 'tomcat_serverxml' ]
 
+- name: Install the web.xml file
+  template: src=tomcat-web.xml.j2 dest={{ item.instance_path }}/conf/web.xml owner={{ item.user }} group={{ item.user }} mode=0640
+  with_items: '{{ tomcat_m_instances }}'
+  register: restart_needed
+  notify:
+    - tomcat restart instances with changed configs 
+  tags: [ 'tomcat', 'tomcat_instances', 'tomcat_conf', 'tomcat_serverxml' ]
+
 - name: Install the tomcat-admin package if the host-manager or manager apps are required
-  apt: pkg={{ item }} state={{ tomcat_pkg_state }} cache_valid_time=1800 update_cache=yes
-  with_items: 'tomcat{{ tomcat_version }}-admin'
+  apt: pkg=tomcat{{ tomcat_version }}-admin state={{ tomcat_pkg_state }} cache_valid_time=1800 update_cache=yes
   when: tomcat_m_host_manager_install or tomcat_m_manager_install
   tags: [ 'tomcat', 'tomcat_instances', 'tomcat_conf', 'tomcat_host_manager', 'tomcat_manager' ]
 

library/roles/tomcat-multiple-instances/templates/tomcat-default.j2

@@ -6,6 +6,10 @@ TOMCAT_USER={{ item.user }}
 TOMCAT_GROUP={{ item.user }}
 JAVA_HOME={{ item.java_home }}
 JAVA_OPTS="-server -Djava.awt.headless=true -Dfile.encoding={{ tomcat_m_file_encoding }}"
+{% if jdk_default >= 8 %}
+JAVA_OPTS="{{ tomcat_m_additional_java_8_opts }} $JAVA_OPTS"
+{% endif %}
+
 {% if item.java_heap is defined %}
 JAVA_HEAP="{{ item.java_heap }}"
 {% else %}

library/roles/tomcat/defaults/main.yml

@@ -10,6 +10,11 @@ tomcat_pkgs:
   - 'libtomcat{{ tomcat_version }}-java'
   - 'tomcat{{ tomcat_version }}-common'
   - libapr1
+
+tomcat8_additional_pkgs:
+  - jsvc
+  - libcommons-daemon-java
+
 tomcat_user: 'tomcat{{ tomcat_version }}'
 tomcat_max_threads: 200
 
@@ -19,6 +24,7 @@ tomcat_heap_size: '{{ tomcat_min_heap_size }}'
 tomcat_permgen_size: 512m
 tomcat_file_encoding: 'UTF-8'
 tomcat_java_opts: "-Xms{{ tomcat_min_heap_size }} -Xmx{{ tomcat_heap_size }}"
+tomcat_additional_java_8_opts: "-XX:+CrashOnOutOfMemoryError"
 tomcat_java_gc_opts: "-XX:+UseConcMarkSweepGC"
 #tomcat_other_java_opts: "-Djsse.enableSNIExtension=false"
 tomcat_other_java_opts: ""
@@ -69,6 +75,9 @@ tomcat_jmx_localhost_only: False
 # tomcat_jmx_monitorpass: define_in_a_vault_file
 # tomcat_jmx_controlpass: define_in_a_vault_file
 
+# Metrics monitoring via javamelody
+tomcat_javamelody: True
+
 # tomcat logging
 tomcat_logdir: '/var/log/tomcat{{ tomcat_version }}'
 tomcat_use_log4j: True

library/roles/tomcat/tasks/pgsql_jdbc.yml

@@ -1,9 +1,7 @@
 ---
 # Postgresql JDBC
 - name: Install the jdbc package if needed
-  apt: pkg={{ item }} state=present
-  with_items:
-    - libpostgresql-jdbc-java
+  apt: pkg=libpostgresql-jdbc-java state=present
   when: tomcat_install_pg_jdbc
   tags: [ 'tomcat', 'tomcat_jdbc' ]
 

library/roles/tomcat/tasks/tomcat-pkgs.yml

@@ -5,7 +5,7 @@
   when:
     - ansible_distribution_major_version <= '16'
     - tomcat_fixed_version is not defined
-  tags: tomcat
+  tags: [ 'tomcat', 'tomcat_ver' ]
 
 - name: Set the tomcat version for Ubuntu bionic
   set_fact:
@@ -13,18 +13,23 @@
   when:
     - ansible_distribution_major_version == '18'
     - tomcat_fixed_version is not defined
-  tags: tomcat
+  tags: [ 'tomcat', 'tomcat_ver' ]
 
 - name: Impose a tomcat version
   set_fact:
     tomcat_version: '{{ tomcat_fixed_version }}'
   when: tomcat_fixed_version is defined
-  tags: tomcat
+  tags: [ 'tomcat', 'tomcat_ver' ]
 
 - name: Install the tomcat packages
-  apt: pkg={{ tomcat_pkgs }} state={{ tomcat_pkg_state }}
+  apt: pkg={{ tomcat_pkgs }} state={{ tomcat_pkg_state }} cache_valid_time=1800
   tags: tomcat
 
+- name: Install additional packages needed by tomcat 8+
+  apt: pkg={{ tomcat8_additional_pkgs }} state={{ tomcat_pkg_state }} cache_valid_time=1800
+  when: tomcat_version >= 8
+  tags: [ 'tomcat', 'tomcat_javamelody' ]
+
 - name: Create the tomcat tmp directory
   file: dest={{ tomcat_tmp_dir }} state=directory owner={{ tomcat_user }} group={{ tomcat_user }}
   notify: tomcat restart
@@ -48,6 +53,11 @@
   notify: tomcat restart
   tags: [ 'tomcat', 'tomcat_serverxml' ]
 
+- name: Configure tomcat web.xml
+  template: src=tomcat-web.xml.j2 dest={{ tomcat_conf_dir }}/web.xml
+  notify: tomcat restart
+  tags: [ 'tomcat', 'tomcat_serverxml' ]
+
 - name: Install a slightly modified catalina.properties
   copy: src=catalina.properties dest={{ tomcat_conf_dir }}/catalina.properties owner=root group={{ tomcat_user }} mode=0644
   when: tomcat_install_default_conf
@@ -61,3 +71,20 @@
     - server/classes
     - shared/classes
   tags: tomcat
+
+- name: On tomcat8, create a link to commons-daemon.jar to avoid exceptions at startup
+  file: src=/usr/share/java/{{ item }} dest={{ tomcat_catalina_home_dir }}/bin/{{ item }} state=link owner=root group=root  mode=0644
+  with_items:
+    - commons-daemon.jar
+  when: tomcat_version >= 8
+  tags: [ 'tomcat', 'tomcat_javamelody' ]
+
+- name: Install the javamelody war if the javamelody support is enabled
+  maven_artifact: artifact_id=javamelody-core version=latest group_id=net.bull.javamelody extension=jar dest={{ tomcat_catalina_home_dir }}/lib/javamelody-core.jar verify_checksum=always mode=0644 owner=root group=root
+  when: tomcat_javamelody
+  tags: [ 'tomcat', 'tomcat_javamelody' ]
+
+- name: Remove the javamelody war if the javamelody support is disabled
+  file: dest={{ tomcat_catalina_home_dir }}/lib/javamelody-core.jar state=absent
+  when: not tomcat_javamelody
+  tags: [ 'tomcat', 'tomcat_javamelody' ]

library/roles/tomcat/templates/tomcat-default.j2

@@ -26,6 +26,9 @@ JAVA_OPTS="-XX:MaxPermSize={{ tomcat_permgen_size }} $JAVA_OPTS"
 {% endif %}
 {% endif %}
 {% endif %}
+{% if jdk_default >= 8 %}
+JAVA_OPTS="{{ tomcat_additional_java_8_opts }} $JAVA_OPTS"
+{% endif %}
 {% if tomcat_java_opts is defined %}
 JAVA_OPTS="{{ tomcat_java_opts }} $JAVA_OPTS"
 {% endif %}