fixed linting errors by refactoring ansible tests and change a variable name

roles/elastic-stack/ansible-elasticsearch/defaults/main.yml

@@ -3,7 +3,7 @@ elasticsearch_cluster_name: wazuh
 elasticsearch_node_name: node-1
 elasticsearch_http_port: 9200
 elasticsearch_network_host: 0.0.0.0
-elasticsearch_check_connection: 127.0.0.1
+elasticsearch_host: 127.0.0.1
 elasticsearch_jvm_xms: null
 elastic_stack_version: 7.2.0
 single_node: false

roles/elastic-stack/ansible-elasticsearch/tasks/Debian.yml

@@ -26,7 +26,7 @@
 
 - name: Install Oracle Java 8
   become: true
-  apt: name=openjdk-8-jdk state=latest
+  apt: name=openjdk-8-jdk
 
   when:
     - ansible_distribution == "Ubuntu"

roles/elastic-stack/ansible-elasticsearch/tasks/main.yml

@@ -101,7 +101,9 @@
     - elasticsearch_xpack_security
 
 - name: Generating certificates for Elasticsearch security
-  shell: "/usr/share/elasticsearch/bin/elasticsearch-certutil cert ca --pem --in {{node_certs_source}}/instances.yml --out {{node_certs_source}}/certs.zip"
+  command: >-
+     "/usr/share/elasticsearch/bin/elasticsearch-certutil cert ca --pem --in
+     {{ node_certs_source }}/instances.yml --out {{ node_certs_source }}/certs.zip"
   when:
     - node_certs_generator
     - elasticsearch_xpack_security
@@ -144,7 +146,9 @@
   tags: xpack-security
 
 - name: Importing key & certificate files from generator node
-  shell: "{{rsync_path}} {{rsync_extra_parameters}} {{rsync_user}}@{{node_certs_generator_ip}}:{{node_certs_source}}/{{elasticsearch_node_name}}/ {{node_certs_destination}}/"
+  command: >-
+    {{ rsync_path }} {{ rsync_extra_parameters }} {{ rsync_user }}@{{ node_certs_generator_ip }}:
+    {{ node_certs_source }}/{{ elasticsearch_node_name }}/ {{ node_certs_destination }}/
   when:
     - not node_certs_generator
     - elasticsearch_xpack_security
@@ -152,7 +156,9 @@
   tags: xpack-security
 
 - name: Importing ca certificate file from generator node
-  shell: "{{rsync_path}} {{rsync_extra_parameters}} {{rsync_user}}@{{node_certs_generator_ip}}:{{node_certs_source}}/ca/ {{node_certs_destination}}/"
+  command: >-
+    {{ rsync_path }} {{ rsync_extra_parameters }} {{ rsync_user }}@{{ node_certs_generator_ip }}:
+    {{ node_certs_source }}/ca/ {{ node_certs_destination }}/
   when:
     - not node_certs_generator
     - elasticsearch_xpack_security
@@ -161,22 +167,31 @@
   tags: xpack-security
 
 - name: Ensuring certificates folder owner
-  shell: "chown -R elasticsearch: {{node_certs_destination}}/"
+  file:
+    path: "{{ node_certs_destination }}/"
+    state: directory
+    recurse: yes
+    owner: elasticsearch
+    group: elasticsearch
   when:
     - check_certs_permissions is defined
     - elasticsearch_xpack_security
   tags: xpack-security
 
 - name: Ensuring certificates folder owner
-  shell: "chmod -R 770 {{node_certs_destination}}/"
+  file:
+    path: "{{ node_certs_destination }}/"
+    mode: '0770'
+    recurse: yes
   when:
     - check_certs_permissions is defined
     - elasticsearch_xpack_security
   tags: xpack-security
 
-
 - name: Remove generated certs file
-  shell: /bin/rm -f {{node_certs_source}}/certs.zip*
+  file:
+    state: absent
+    path: "{{ node_certs_source }}/certs.zip*"
   when:
     - node_certs_generator
     - elasticsearch_xpack_security
@@ -193,7 +208,9 @@
   tags: configure
 
 - name: Set elasticsearch bootstrap password
-  shell: "echo '{{elasticsearch_xpack_security_password}}' | {{node_certs_source}}/bin/elasticsearch-keystore add -xf 'bootstrap.password'"
+  shell: |
+     set -o pipefail
+     "echo '{{ elasticsearch_xpack_security_password }}' | {{ node_certs_source }}/bin/elasticsearch-keystore add -xf 'bootstrap.password'"
   when:
     - elasticsearch_xpack_security
 
@@ -242,7 +259,7 @@
     state: started
 
 - name: Make sure Elasticsearch is running before proceeding
-  wait_for: host={{ elasticsearch_check_connection }} port={{ elasticsearch_http_port }} delay=3 timeout=400
+  wait_for: host={{ elasticsearch_host }} port={{ elasticsearch_http_port }} delay=3 timeout=400
   tags:
     - configure
     - init