- name: Install needed packages
  apt:
    name: '{{ packages }}'
    state: latest
  vars:
    packages:
    - tmux
    - htop
    - bash-completion
    - git-core
  register: apt

# More info https://github.com/influxdata/docs.influxdata.com/blob/master/content/influxdb/v1.5/supported_protocols/udp.md
# Requested by Aliaksei Zhuk on 29-11-2018 8:48
- name: Configure net.core.rmem_* sysctl for InfluxDB UDP
  sysctl:
    name: '{{ item }}'
    value: 209715200
  with_items:
   - net.core.rmem_max
   - net.core.rmem_default

# More info https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html
# Requested by Aliaksei Zhuk on 29-11-2018 8:48
- name: Configure vm.max_map_count sysctl for ElasticSearch
  sysctl:
    name: vm.max_map_count
    value: 262144