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README_SSL.md

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Features enabled by the SSL/TLS playbook

  1. Encrypt communication with elasticsearch. See the oficial documentation on details of the implementation: Encrypt traffic between Kibana and Elasticsearch and Configure Kibana to use the client certificate and private key.

To enable this module simple set the variable

es_enable_http_ssl: true

a. If your certificate and private key are contained in a PKCS#12 (*.p12 or *.pfx) file then use

es_ssl_keystore: "files/certs/my-keystore.p12"
es_ssl_keystore_password: elastic

b. Otherwise, if your certificate and private key are in PEM format:

es_ssl_cert: "files/certs/client/client.crt"
es_ssl_key: "files/certs/client/client.key"
es_ssl_key_passphrase: elastic
  1. Kibana Server SSL for Encrypt traffic between the browser and Kibana as described in Encrypt Communications in Kibana

Set the variable:

enable_server_ssl: true

a. If your Kibana server certificate and private key are contained in a PKCS#12 (*.p12 or *.pfx) file then use

server_ssl_keystore: "files/certs/my-keystore.p12"
server_ssl_keystore_password: elastic

b. If your server certificate and private key are in PEM format:

server_ssl_cert: "files/certs/server/server.crt"
server_ssl_key: "files/certs/server/server.key"
server_ssl_key_passphrase: elastic
  1. Implement Secure Settings

Stores the Kibana username/password in he Kibana keystore instead of the kibana.conf file.

secure_settings: true 4. Implement OIDC kibana configuration as documented here Configuring Kibana and
Set up OpenID Connect with Azure, Google, or Okta Secure your clusters with OpenID Connect

This is controlled via es_enable_oidc: true And will add the following settings to kibana.yml

xpack.security.authc.providers:
  oidc.oidc1:
    order: 0
    realm: oidc1
    description: "Log in with my OpenID Connect"
  basic.basic1:
    order: 1

If you are using a Kibana instance of version 7.6 or earlier change the settings in your kibana.yml to:

xpack.security.authc.providers: [oidc]
xpack.security.authc.oidc.realm: "oidc1" 
server.xsrf.whitelist: [/api/security/v1/oidc]

Here is a sample Playbook with all the variables

  - name: Simple Kibana Playbook with SSL enabled 
    hosts: kibana-node
    roles:
    - role: fedelemantuano.kibana
      es_version: 7.11.2
      kibana_api_host: "{{ ansible_default_ipv4.address }}"
      #Secure communication with Elasticsearch
      es_enable_http_ssl: true
      es_ssl_verification_mode: "certificate"
      #Use se the PKCS12 .p12 or pfx keystore file.
      es_ssl_keystore: "files/certs/my-keystore.p12""
      es_ssl_keystore_password: elastic
      #Alternatively use the certificate/key 
      #es_ssl_cert: "files/certs/client/client.crt"
      #es_ssl_key: "files/certs/client/client.key"
      #es_ssl_key_passphrase: elastic
      enable_server_ssl: true
      server_ssl_keystore: "files/certs/my-keystore.p12"
      server_ssl_keystore_password: elastic
      #server_ssl_cert: "files/certs/server/server.crt"
      #server_ssl_key: "files/certs/server/server.key"
      #server_ssl_key_passphrase: elastic
      #Store kibana settings in the keystore
      secure_settings: true
      es_user: kibana_system
      es_pass: changeme
      es_enable_oidc: false
      kibana_config:
          server.name: "{{ inventory_hostname }}"
          server.port: 5601
          server.host: "{{ ansible_default_ipv4.address }}"
          elasticsearch.hosts: "https://{{ ansible_default_ipv4.address }}:9200"
          xpack.security.audit.enabled: true
          #Add this when deploying behing AWS ALB Target Group
          #server.basePath: "/kibana"
          #server.rewriteBasePath: true

Debugging tips

Check what is stored in the Kibana keystore.

[root@kibana-host]# /usr/share/kibana/bin/kibana-keystore list  --allow-root
elasticsearch.ssl.keystore.password
server.ssl.keystore.password
elasticsearch.username
elasticsearch.password
[root@kibana-host]#

Removing Kibana

Use this playbook for removing kibana from RPM based system.

- hosts:  kibana-node
  tasks:
    - yum:
        name: kibana
        state: absent
      become: true
    - file:
        path: "{{item}}"
        state: absent
      loop:
        - /etc/kibana
        - /usr/share/kibana
        - /var/lib/kibana
      become: true