Remove es2 support from commcare-cloud

quick_monolith_install/sample-environment/public.yml.j2

@@ -2,8 +2,8 @@
 {% endraw %}
 elasticsearch_memory: '2048m'
 elasticsearch_cluster_name: '{{env_name}}-es'
-elasticsearch_version: 2.4.6
-elasticsearch_download_sha256: 5f7e4bb792917bb7ffc2a5f612dfec87416d54563f795d6a70637befef4cfc6f.
+elasticsearch_version: 5.6.16
+elasticsearch_download_sha256: 6b035a59337d571ab70cea72cc55225c027ad142fbb07fd8984e54261657c77f.
 
 formplayer_java_version: {% raw %}"{{ java_17_bin_path }}/java"
 {% endraw %}
@@ -82,7 +82,7 @@ localsettings:
   COUCH_STALE_QUERY: 'update_after'
   DEPLOY_MACHINE_NAME: {% raw %}"{{ ansible_hostname }}"
 {% endraw %}
-  ELASTICSEARCH_MAJOR_VERSION: 2
+  ELASTICSEARCH_MAJOR_VERSION: 5
   EMAIL_SMTP_HOST: 'localhost'
   EMAIL_SMTP_PORT: 25
   EMAIL_USE_TLS: no

src/commcare_cloud/ansible/roles/commcarehq/templates/localsettings.py.j2

@@ -463,7 +463,7 @@ ELASTICSEARCH_PORT = {{ ELASTICSEARCH_PORT }}
 {% if 'ELASTICSEARCH_MAJOR_VERSION' in localsettings %}
 ELASTICSEARCH_MAJOR_VERSION = {{ localsettings.ELASTICSEARCH_MAJOR_VERSION }}
 {% else %}
-ELASTICSEARCH_MAJOR_VERSION = 2
+ELASTICSEARCH_MAJOR_VERSION = 5
 {% endif %}
 
 ES_SETTINGS = {{ ES_SETTINGS }}

src/commcare_cloud/ansible/roles/elasticsearch/defaults/main.yml

@@ -1,18 +1,16 @@
 ---
-elasticsearch_version: 2.4.6
+elasticsearch_version: 5.6.16
 # https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html#_give_half_your_memory_to_lucene
 # Either half the machines RAM or 24 GB. If changing in the future, never want to go over 30 GB
 elasticsearch_memory: "{{ [ansible_memory_mb.real.total // 2, 24576] | min }}m"
-elasticsearch_download_sha256: 5f7e4bb792917bb7ffc2a5f612dfec87416d54563f795d6a70637befef4cfc6f.
+elasticsearch_download_sha256: 6b035a59337d571ab70cea72cc55225c027ad142fbb07fd8984e54261657c77f.
 elasticsearch_home: "/opt/elasticsearch-{{ elasticsearch_version }}"
 elasticsearch_conf_dir: "/etc/elasticsearch-{{ elasticsearch_version }}"
 elasticsearch_data_dir: "{{ encrypted_root }}/elasticsearch-{{ elasticsearch_version }}"
 elasticsearch_tcp_port: 9300
 elasticsearch_http_port: 9200
 #es_snapshot_bucket: "dimagi-{{ deploy_env }}-es-snapshots"
 es_repository_name: "{{ deploy_env }}_es_snapshot"
-aws_plugin_version: "2.7.1"
-swift_plugin_version: "2.4.6"
 backup_es_swift: no
 elasticsearch_enable_inline_groovy_scripts: True
 elasticsearch_service_name: elasticsearch

src/commcare_cloud/ansible/roles/elasticsearch/tasks/main.yml

@@ -24,14 +24,6 @@
     value: '262144'
     state: present
   become: yes
-
-- name: Download Elasticsearch 2.4.x
-  become: yes
-  get_url:
-    url: "https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-{{ elasticsearch_version }}.tar.gz"
-    dest: "/home/{{ cchq_user }}/downloads/elasticsearch-{{ elasticsearch_version }}.tar.gz"
-    sha256sum: "{{ elasticsearch_download_sha256 }}"
-  when: elasticsearch_version == "2.4.6"
 
 - name: Download Elasticsearch 5
   become: yes
@@ -83,9 +75,6 @@
   tags:
     - es_conf
 
-- include: misc_v2.yml
-  when: elasticsearch_version == '2.4.6'
-
 - include: misc_v5.yml
   when: elasticsearch_version == '5.6.16'
 

src/commcare_cloud/ansible/roles/elasticsearch/tasks/misc_v7.yml

@@ -29,13 +29,3 @@
 - name: Check for installed plugins
   shell: "{{ elasticsearch_home }}/bin/elasticsearch-plugin list"
   register: installed_plugins
-
-- name: Install elasticsearch aws plugin
-  become: yes
-  shell: "{{ elasticsearch_home }}/bin/elasticsearch-plugin install elasticsearch/elasticsearch-cloud-aws/{{ aws_plugin_version }}"
-  when: (backup_es_s3) and (installed_plugins.stdout is defined) and ('cloud-aws' not in installed_plugins.stdout)
-
-- name: Install elasticsearch swift plugin
-  become: yes
-  shell: "{{ elasticsearch_home }}/bin/elasticsearch-plugin install https://github.com/dimagi/elasticsearch-repository-swift/releases/download/swift-repository-plugin-{{ swift_plugin_version }}/repository-swift-3.0.0-es{{ swift_plugin_version }}.zip"
-  when: (backup_es_swift) and (installed_plugins.stdout is defined) and ('repository-swift' not in installed_plugins.stdout)

src/commcare_cloud/ansible/roles/elasticsearch/templates/config/elasticsearch.yml.j2

@@ -10,13 +10,8 @@ node.name: "{{ elasticsearch_node_name }}"
 {% if elasticsearch_node_zone is defined %}
 # Used for shard allocation awareness
 # https://www.elastic.co/guide/en/elasticsearch/reference/current/allocation-awareness.html
-{% if elasticsearch_version == '2.4.6'%}
-node.zone: "{{ elasticsearch_node_zone }}"
-{% endif %}
-{% if elasticsearch_version is version('5.0.0', '>=') %}
 node.attr.zone: "{{ elasticsearch_node_zone }}"
 {% endif %}
-{% endif %}
 
 # disable multiple nodes starting from the same installation location
 node.max_local_storage_nodes: 1
@@ -40,10 +35,7 @@ discovery.zen.minimum_master_nodes: {{ [2, groups.elasticsearch|map('extract', h
 discovery.zen.fd.ping_timeout: 90s
 discovery.zen.fd.ping_interval: 10s
 discovery.zen.fd.ping_retries: 20
-{% if elasticsearch_version == '2.4.6' %}
-discovery.zen.ping.multicast.enabled: false
-discovery.zen.ping.timeout: 90s
-{% endif %}
+
 {% if elasticsearch_version == '5.6.16' %}
 discovery.zen.ping_timeout: 90s
 {% endif %}
@@ -70,14 +62,6 @@ network.host: "{{ inventory_hostname }}"
 network.host: "{{ lookup('dig', inventory_hostname, wantlist=True)[0] }}"
 {% endif %}
 
-{% if elasticsearch_version == '2.4.6'%}
-index.search.slowlog.threshold.query.warn: 10s
-index.search.slowlog.threshold.query.info: 5s
-index.search.slowlog.threshold.query.debug: 2s
-index.search.slowlog.threshold.query.trace: 500ms
-index.max_result_window: 1050000
-{% endif %}
-
 {% if elasticsearch_fielddata_cache_size|default('') %}
 indices.fielddata.cache.size:  {{ elasticsearch_fielddata_cache_size }}
 {% endif %}
@@ -102,13 +86,8 @@ cloud:
 
 {% endif %}
 
-# Only allow indices to be created by an explicit "create" command
-{% if elasticsearch_version == '2.4.6'%}
-action.auto_create_index: false
-{% endif %}
-{% if elasticsearch_version is version('5.0.0', '>=') %}
+# Only auto create elastic search internal indices
 action.auto_create_index: .watches,.triggered_watches,.watcher-history-*
-{% endif %}
 
 
 {% if es_local_repo and not backup_es_s3%}

src/commcare_cloud/ansible/roles/elasticsearch/templates/systemd/elasticsearch.service.j2

@@ -12,21 +12,12 @@ Environment=ES_PATH_CONF={{ elasticsearch_conf_dir}}
 {% if elasticsearch_version == '5.6.16'%}
 Environment=ES_JVM_OPTIONS={{ elasticsearch_conf_dir}}/jvm.options
 {% endif %}
-{% if elasticsearch_version == '2.4.6'%}
-Environment=ES_HEAP_SIZE={{ elasticsearch_memory }}
-{% endif %}
 WorkingDirectory={{ elasticsearch_home }}
 
 User=elasticsearch
 Group=elasticsearch
 
-{% if elasticsearch_version == '2.4.6'%}
-ExecStart={{ elasticsearch_home }}/bin/elasticsearch  --path.conf=${CONF_DIR} --path.home=${ES_HOME}
-{% endif %}
-
-{% if elasticsearch_version == '5.6.16'%}
 ExecStart={{ elasticsearch_home }}/bin/elasticsearch -Epath.conf=${CONF_DIR}
-{% endif %}
 
 Restart=always
 RestartSec=10