fixed communications between containers

Pipfile

@@ -14,19 +14,12 @@ molecule = "==2.20.2"
 python_version = "2.7"
 
 [scripts]
-# Normal Case
-test ="molecule test"
+test ="molecule test --destroy=never"
 agent ="molecule test -s wazuh-agent"
-elasticsearch ="molecule test -s elasticsearch"
+elasticsearch ="molecule test -s elasticsearch  --destroy=never"
 filebeat ="molecule test -s filebeat"
 kibana ="molecule test -s kibana"
 
-# Do Not destroy the created containers afte the test execution ends.  
-test_still ="molecule test --destroy=never"
-agent_still ="molecule test -s wazuh-agent --destroy=never"
-elasticsearch_still ="molecule test -s elasticsearch --destroy=never"
-filebeat_still ="molecule test -s filebeat --destroy=never"
-kibana_still ="molecule test -s kibana --destroy=never"
-
 # Destroy all the existing containers ' Created by Molecule ' 
+destroy_elasticsearch ="molecule destroy -s elasticsearch"
 destroy ="molecule destroy"

molecule/default/create.yml

@@ -44,16 +44,15 @@
 
     - name: Create docker network(s)
       docker_network:
-        name: "{{ item }}"
-        docker_host: "{{ item.docker_host | default('unix://var/run/docker.sock') }}"
+        name: "new_network"
         state: present
-      with_items: "{{ molecule_yml.platforms | molecule_get_docker_networks }}"
+      
 
     - name: Create molecule instance(s)
       docker_container:
-        name: "manager"
+        name: "{{ item.name }}"
         docker_host: "{{ item.docker_host | default('unix://var/run/docker.sock') }}"
-        hostname: "manager"
+        hostname: "{{ item.name }}"
         image: "molecule_local/{{ item.image }}"
         state: started
         recreate: false
@@ -65,7 +64,8 @@
         exposed_ports: "{{ item.exposed_ports | default(omit) }}"
         published_ports: "{{ item.published_ports | default(omit) }}"
         ulimits: "{{ item.ulimits | default(omit) }}"
-        networks: "{{ item.networks | default(omit) }}"
+        networks: 
+          - name: "new_network"
         dns_servers: "{{ item.dns_servers | default(omit) }}"
       register: server
       with_items: "{{ molecule_yml.platforms }}"
@@ -78,4 +78,4 @@
       register: docker_jobs
       until: docker_jobs.finished
       retries: 300
-      with_items: "{{ server.results }}"
+      with_items: "{{ server.results }}"

molecule/default/molecule.yml

@@ -7,7 +7,7 @@ lint:
   name: yamllint
   enabled: false
 platforms:
-  - name: bionic
+  - name: manager
     image: solita/ubuntu-systemd:bionic
     command: /sbin/init
     ulimits:

molecule/default/playbook.yml

@@ -3,4 +3,5 @@
   hosts: all
   roles:
     - role: wazuh/ansible-wazuh-manager
+    - { role: wazuh/ansible-filebeat, filebeat_output_elasticsearch_hosts: 'elasticsearch:9200' }
 

molecule/elasticsearch/molecule.yml

@@ -9,13 +9,14 @@ lint:
     config-data:
       ignore: .virtualenv
 platforms:
-  #- name: bionic
-  #  image: solita/ubuntu-systemd:bionic
-  #  command: /sbin/init
-  #  ulimits:
-  #    - nofile:262144:262144
-  #  privileged: true
-  #  memory_reservation: 2048m
+  - name: elasticsearch
+    image: solita/ubuntu-systemd:bionic
+    command: /sbin/init
+    ulimits:
+      - nofile:262144:262144
+    privileged: true
+    memory_reservation: 2048m
+    
   #- name: xenial
   #  image: solita/ubuntu-systemd:xenial
   #  privileged: true
@@ -35,12 +36,12 @@ platforms:
   #  memory_reservation: 2048m
   #  ulimits:
   #    - nofile:262144:262144
-  - name: centos7
-    image: milcom/centos7-systemd
-    memory_reservation: 2048m
-    privileged: true
-    ulimits:
-      - nofile:262144:262144
+  #- name: centos7
+  #  image: milcom/centos7-systemd
+  #  memory_reservation: 2048m
+  #  privileged: true
+  #  ulimits:
+  #    - nofile:262144:262144
 provisioner:
   name: ansible
   playbooks:

molecule/elasticsearch/playbook.yml

@@ -3,4 +3,4 @@
   hosts: all
   roles:
     - role: elastic-stack/ansible-elasticsearch
-      elasticsearch_network_host: 'localhost'
+      elasticsearch_network_host: 'elasticsearch'

update-dnsmasq.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# 10 seconds interval time by default
+INTERVAL=${INTERVAL:-10}
+
+# dnsmasq config directory
+DNSMASQ_CONFIG=${DNSMASQ_CONFIG:-.}
+
+# commands used in this script
+DOCKER=${DOCKER:-docker}
+SLEEP=${SLEEP:-sleep}
+TAIL=${TAIL:-tail}
+
+declare -A service_map
+
+while true
+do
+    changed=false
+    while read line
+    do
+        name=${line##* }
+        ip=$(${DOCKER} inspect --format '{{.NetworkSettings.IPAddress}}' $name)
+        # if IP addr changed
+        if [ -z ${service_map[$name]} ] || [ ${service_map[$name]} != $ip ]
+        then
+            service_map[$name]=$ip
+            # write to file
+            echo $name has a new IP Address $ip >&2
+            echo "host-record=$name,$ip"  > "${DNSMASQ_CONFIG}/docker-$name"
+            changed=true
+        fi
+    done < <(${DOCKER} ps | ${TAIL} -n +2)
+
+    # a change of IP address occured, restart dnsmasq
+    if [ $changed = true ]
+    then
+        systemctl restart dnsmasq
+    fi
+
+    ${SLEEP} $INTERVAL
+done