Required Hardware Spec.

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Internal Ports (Backend Server 간): Trusted Network 구간

• 8000 : Salt-API Server - CH Server와 데이터 송수신.

• 9094 : Kapacitor - InfluxDB와 데이터 송수신.

Intermediate Ports (Agent ↔︎ Backend Server 간): Semi-Trusted Network 구간

• 4505-4506 : Salt-Master - Salt-Minion과 데이터 송수신.

• 8086 : InfluxDB - telegraf로부터 데이터 수신.

아래는 firewalld 설정 파일 예시이며,

<!-- /etc/firewalld/zones/public.xml -->
<?xml version="1.0" encoding="utf-8"?>
<zone>
  <short>Public</short>
  <description>For use in public areas.</description>
  <service name="ssh"/>
  <service name="dhcpv6-client"/>
  <port protocol="tcp" port="443"/>
  <rule family="ipv4">
    <source address="xxx.xxx.xxx.0/24"/>
    <port protocol="tcp" port="4505-4506"/>
    <accept/>
  </rule>
  <rule family="ipv4">
    <source address="xxx.xxx.xxx.xxx"/>
    <port protocol="tcp" port="8000"/>
    <accept/>
  </rule>
  <rule family="ipv4">
    <source address="xxx.xxx.xxx.xxx"/>
    <port protocol="tcp" port="8086"/>
    <accept/>
  </rule>
  <rule family="ipv4">
    <source address="xxx.xxx.xxx.xxx"/>
    <port protocol="tcp" port="9094"/>
    <accept/>
  </rule>
</zone>

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Setting InfluxDB and Kapacitor containers via Docker Compose

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Setting SaltStack for master

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1. SaltStack 저장소 등록

   Code Block
   language bash
   $ yum install -y epel-release $ rpm --import https://repo.saltproject.io/py3/redhat/7/x86_64/archive/3001.4/SALTSTACK-GPG-KEY.pub $ curl -fsSL https://repo.saltproject.io/py3/redhat/7/x86_64/archive/3001.4.repo | sudo tee /etc/yum.repos.d/salt.repo $ yum clean expire-cache

2. Salt-Master, Salt-API, Salt-Minion 설치

   Code Block
   language bash
   $ yum install -y salt-master salt-api salt-minion

3. Config 설정

   1. Salt-Master의 Config 와 Salt-API의 Config 파일을 설정해야 합니다.

   2. Salt-Master : $ vim /etc/salt/master.d/master.conf

   3. Status
      colour Red title 주의

      Host에 여러 Interface가 있을 경우 Salt-Minion과 연결 가능한 네트워크 Interface IP로 설정해야 합니다.
      ex) interface: 61.254.65.58
      아래 예와 같이 any(0.0.0.0)로 설정해도 master ↔︎ minion 간 통신은 문제가 없으나,
      CloudHub UI에서 원하지 않는 IP로 표시될 수 있습니다.

      Code Block
      language yaml
      ## log_level ## # One of 'garbage', 'trace', 'debug', info', 'warning'(default), 'error', 'critical'. log_level: info ##### Primary configuration settings ##### ########################################## # The address of the interface to bind to: interface: 0.0.0.0 # The tcp port used by the publisher: publish_port: 4505 # Allow minions to push files to the master. This is disabled by default, for # security purposes. # file_recv: True ##### State System settings ##### ########################################## # The state system uses a "top" file to tell the minions what environment to # use and what modules to use. The state_top file is defined relative to the # root of the base environment as defined in "File Server settings" below. state_top: top.sls ##### File Server settings ##### ########################################## # Salt runs a lightweight file server written in zeromq to deliver files to # minions. This file server is built into the master daemon and does not # require a dedicated port. # The file server works on environments passed to the master, each environment # can have multiple root directories, the subdirectories in the multiple file # roots cannot match, otherwise the downloaded files will not be able to be # reliably ensured. A base environment is required to house the top file. file_roots: base: - /srv/salt/prod qa: - /srv/salt/qa - /srv/salt/prod dev: - /srv/salt/dev - /srv/salt/qa - /srv/salt/prod # File Server Backend # # Salt supports a modular fileserver backend system, this system allows # the salt master to link directly to third party systems to gather and # manage the files available to minions. Multiple backends can be # configured and will be searched for the requested file in the order in which # they are defined here. The default setting only enables the standard backend # "roots" which uses the "file_roots" option. fileserver_backend: - roots ##### Security settings ##### ########################################## # The external auth system uses the Salt auth modules to authenticate and # validate users to access areas of the Salt system. external_auth: pam: saltdev: - .* - '@runner' - '@wheel' - '@jobs' # Allow eauth users to specify the expiry time of the tokens they generate. # A boolean applies to all users or a dictionary of whitelisted eauth backends # and usernames may be given. token_expire_user_override: pam: - saltdev ##### API Server settings ##### ########################################## rest_cherrypy: port: 8000 disable_ssl: True

   4. Salt-Minion : $ vim /etc/salt/minion.d/minion.conf

      Code Block
      language yaml
      ## log_level ## # One of 'garbage', 'trace', 'debug', info', 'warning'(default), 'error', 'critical'. log_level: info master: <master ip address> id: <유일한 minion id 설정해야 하며, 생략 시, hostname = minion id>

4. 계정 생성 및 패스워드 설정
   아래 추가된 password는 추후 salt-api authentication을 위한 pam_token를 발급 받는데 쓰이므로, 잘 기억해두어야 합니다.

   Code Block
   language bash
   $ useradd saltdev $ passwd <password> Changing password for user saltdev. New password:

5. 서비스 시작

   Code Block
   language bash
   $ systemctl enable salt-master $ systemctl start salt-master $ systemctl enable salt-api $ systemctl start salt-api $ systemctl enable salt-minion $ systemctl start salt-minion

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