nifi

Use this role to install, configure, and manage Apache NiFi. Role has been tested with NiFi versions 1.1.x, 1.2.0 and 1.3.0.

Requirements

Prior to executing this role, the NiFi distribution must be accssible on the target system at {{ nifi_base_dir }}/nifi-{{ nifi_version }}/

• if RPM, the RPM must be installed
• if tar.gz, it must be unarchived

Role Variables

Required Variables

nifi_version

Variables that determine the nifi install location, and their default values:

nifi_base_dir: /opt/nifi
nifi_etc_dir: /etc/nifi
nifi_log_dir: /var/log/nifi
nifi_pid_dir: /var/run/nifi

Other Default variables are listed below:

# whether to restart nifi after making changes; default is True, for a cluster you may wish to disable
nifi_perform_restart: True

# whether to force a restart, useful if another role has made changes (such as updating a custom nar); default is False
nifi_force_restart: False

# A complete list of IP addresses for each nodes within the nifi cluster
nifi_nodes_list: []

# nifi_extra_args is a list of key/value pairs that are made available in NiFi, for example:
nifi_extra_args:
  - file.encoding: "UTF-8"
  - environment: "{{ env }}"

# List of directories for nifi to look in for additional nars.
nifi_custom_nars: []
    
nifi_node_jvm_memory: '1024m'
nifi_java_command: 'java'

# defaults file / directories for nifi
nifi_database_repository: "{{ nifi_home }}/database_repository"
nifi_flowfile_repository: "{{ nifi_home }}/flowfile_repository"
nifi_content_repositories: [ "{{ nifi_home }}/content_repository" ]
nifi_provenance_repositories: [ "{{ nifi_home }}/provenance_repository" ]

# NiFi cluster settings
nifi_single_node: True
nifi_input_socket_host:
nifi_input_socket_port:
nifi_cluster_node_protocol_port:
nifi_web_http_port: 8080

# Queue swap settings
nifi_queue_swap_threshold: 20000
nifi_swap_in_threads: 1
nifi_swap_out_threads: 4

# Content Repository Settings
nifi_content_claim_max_flow_files: 100
nifi_content_claim_max_appendable_size: '10 MB'
nifi_content_archive_max_retention_period: '12 hours'
nifi_content_archive_max_usage_percentage: '50%'
nifi_content_archive_enabled: 'false'
nifi_content_always_sync: 'false'
 
# Provenance settings: PersistentProvenanceRepository or VolatileProvenanceRepository
nifi_provenance_implementation: PersistentProvenanceRepository
nifi_provenance_max_storage_time: '24 hours'
nifi_provenance_max_storage_size: '1 GB'
nifi_provenance_rollover_time: '30 secs'
nifi_provenance_rollover_size: '100 MB'
nifi_provenance_query_threads: 2
nifi_provenance_index_threads: 2
nifi_provenance_repository_buffer_size: 100000
nifi_provenance_indexed_fields: EventType, FlowFileUUID, Filename, ProcessorID, Relationship

# Status repository settings
nifi_components_status_repository_buffer_size: 1440
nifi_components_status_snapshot_frequency: '1 min'

# NiFi zookeeper settings
nifi_zookeeper_servers: []
nifi_zookeeper_dir: /data/zookeeper
nifi_state_management_embedded_zookeeper_start: False
nifi_zookeeper_root_node: '/nifi'
nifi_zookeeper_session_timeout: '10 seconds'
nifi_zookeeper_autopurge_purgeInterval: 24
nifi_zookeeper_autopurge_snapRetainCount: 30

# Security settings
nifi_initial_admin:
nifi_is_secure: False

# Logback logging levels and settings
nifi_log_app_file_retention: 10
nifi_log_user_file_retention: 10
nifi_log_boot_file_retention: 10
nifi_log_level_root: INFO
nifi_log_level_org_apache_nifi: INFO
nifi_log_level_org_apache_nifi_processors: WARN
nifi_log_level_org_apache_nifi_processors_standard_LogAttribute: INFO
nifi_log_level_org_apache_nifi_controller_repository: WARN
nifi_log_level_org_apache_nifi_controller_repository_StandardProcessSession: WARN
nifi_log_level_org_apache_nifi_cluster: INFO
nifi_log_level_org_apache_nifi_server_JettyServer: INFO
nifi_log_level_org_eclipse_jetty: INFO
nifi_log_level_org_apache_nifi_web_security: INFO
nifi_log_level_org_apache_nifi_web_api_config: INFO
nifi_log_level_org_apache_nifi_authorization: INFO
nifi_log_level_org_apache_nifi_cluster_authorization: INFO
nifi_log_level_org_apache_nifi_bootstrap: INFO
nifi_log_level_org_apache_nifi_bootstrap_Command: INFO
nifi_log_level_org_apache_nifi_web_filter_RequestLogger: INFO
nifi_log_level_org_wali: WARN
nifi_custom_log_levels: []

Dependencies

NiFi requires java

Example Playbook

Install and configure NiFi

- name: Install NiFi
  hosts: servers
  vars: 
      nifi_log_level_root: WARN
      nifi_node_jvm_memory: '10240M'
      nifi_custom_nars: [ '/opt/extra-nars' ]
      nifi_single_node: False
      nifi_nodes_list: ['nifi-node-1', 'nifi-node-2']      
  pre_tasks:
    - name: Upload NiFi distribution (tar.gz) from localhost
      copy:
        src: nifi-1.2.0-bin.tar.gz
        dest: /opt/nifi
    - name: Unarchive NiFi distribution
      unarchive:
        src: /opt/nifi/nifi-1.2.0-bin.tar.gz
        dest: /opt/nifi
        copy: no
  roles:
    - role: nifi
      nifi_version: 1.2.0

License

MIT