ansible-zookeeper

ZooKeeper playbook for Ansible

Installation

ansible-galaxy install AnsibleShipyard.ansible-zookeeper

Dependencies

Java

• https://github.com/AnsibleShipyard/ansible-java
• https://github.com/geerlingguy/ansible-role-java

Requirements

Ansible version at least 1.6

Role Variables

---
zookeeper_version: 3.6.3
zookeeper_url: http://www.us.apache.org/dist/zookeeper/zookeeper-{{zookeeper_version}}/zookeeper-{{zookeeper_version}}.tar.gz

# Flag that selects if systemd or upstart will be used for the init service:
# Note: by default Ubuntu 15.04 and later use systemd (but support switch to upstart)
zookeeper_debian_systemd_enabled: "{{ ansible_distribution_version is version(15.04, '>=') }}"
zookeeper_debian_apt_install: false
# (Optional:) add custom 'ppa' repositories depending on the distro version (only with debian_apt_install=true)
# Example: to use a community zookeeper v3.4.8 deb pkg for Ubuntu 14.04 (where latest official is v3.4.5)
zookeeper_debian_apt_repositories:
  - repository_url: "ppa:ufscar/zookeeper"
    distro_version: "14.04"

apt_cache_timeout: 3600
zookeeper_register_path_env: false

zookeeper_client_port: 2181
zookeeper_init_limit: 5
zookeeper_sync_limit: 2
zookeeper_tick_time: 2000
zookeeper_pre_alloc_size: 64M
zookeeper_snap_count: 100000
zookeeper_snap_size_limit_in_kb: 4194304 # 4GiB (in KiB) zookeeper >= 3.6.0
zookeeper_autopurge_purge_interval: 0
zookeeper_autopurge_snap_retain_count: 10
zookeeper_cluster_ports: "2888:3888"
zookeeper_max_client_connections: 60
zookeeper_4lw_commands_whitelist: ''
zookeeper_quorum_cnxn_threads_size: 20

zookeeper_data_dir: /var/lib/zookeeper
zookeeper_log_dir: /var/log/zookeeper
zookeeper_dir: /opt/zookeeper-{{zookeeper_version}} # or /usr/share/zookeeper when zookeeper_debian_apt_install is true
zookeeper_conf_dir: {{zookeeper_dir}} # or /etc/zookeeper when zookeeper_debian_apt_install is true
zookeeper_tarball_dir: /opt/src

zookeeper_hosts_hostname: "{{inventory_hostname}}"
# List of dict (i.e. {zookeeper_hosts:[{host:,id:},{host:,id:},...]})
zookeeper_hosts:
  - host: "{{zookeeper_hosts_hostname}}" # the machine running
    id: 1

# Dict of ENV settings to be written into the (optional) conf/zookeeper-env.sh
zookeeper_env: {}

# Controls Zookeeper myid generation
zookeeper_force_myid: yes

Example Playbook

- name: Installing ZooKeeper
  hosts: all
  sudo: yes
  roles:
    - role: AnsibleShipyard.ansible-zookeeper

Example Retrieving Tarball From S3

- name: Installing ZooKeeper
  hosts: all
  sudo: yes
  vars:
    zookeeper_archive_s3_bucket: my-s3-bucket
    zookeeper_archive_s3_object: my/s3/directory/zookeeper-{{zookeeper_version}}.tar.gz
  roles:
    - role: AnsibleShipyard.ansible-zookeeper

Cluster Example

- name: Zookeeper cluster setup
  hosts: zookeepers
  sudo: yes
  roles:
    - role: AnsibleShipyard.ansible-zookeeper
      zookeeper_hosts: "{{groups['zookeepers']}}"

Assuming zookeepers is a hosts group defined in inventory file.

[zookeepers]
server[1:3]

Custom IP per host group

zookeeper_hosts: "
    {%- set ips = [] %}
    {%- for host in groups['zookeepers'] %}
    {{- ips.append(dict(id=loop.index, host=host, ip=hostvars[host]['ansible_default_ipv4'].address)) }}
    {%- endfor %}
    {{- ips -}}"

See this sample playbook which shows how to use this playbook as well as others. It is part of ansible-galaxy-roles and serves as a curation (and thus an example) of all our ansible playbooks.

License

The MIT License (MIT)

Copyright (c) 2014 Kien Pham

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

AnsibleShipyard

Our related playbooks

1. ansible-mesos
2. ansible-marathon
3. ansible-chronos
4. ansible-zookeeper

Author Information

@AnsibleShipyard/developers and others.