ansible_playbook安装案例

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ansible_playbook的一个安装案例

  1. hosts 文件

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    # echo  -e "[zabbix]
    wl.imwl.ml" >> /etc/ansible/hosts

  2. 入口文件 install_zabbix_agent.yml

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# echo  -e "---
- hosts: zabbix   # azbbix组
  roles:
  - install_zabbix_agent   # 角色 install_zabbix_agent"   >  /etc/ansible/install_zabbix_agent.yml

  1. 定义角色 install_zabbix_agent

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    #  cd /etc/ansible/roles/ && mkdir install_zabbix_agent && cd install_zabbix_agent && mkdir files  tasks templates vars && touch tasks/main.yml templates/zabbix_agentd templates/zabbix_agentd.conf  vars/main.yml && wget  -c 'https://cdn.zabbix.com/stable/4.4.7/zabbix-4.4.7.tar.gz' -O files/zabbix-4.4.7.tar.gz
    #  tree /etc/ansible/roles/install_zabbix_agent/

    ├── files
    │    └── zabbix.tar.gz
    ├── tasks
    │    └── main.yml
    ├── templates
    │    ├── zabbix_agentd
    │    └── zabbix_agentd.conf
    └── vars
          └── main.yml

    ## 建立 files     目录，存放编译安装过的 zabbix_agent 目录的压缩文件，用于拷贝到远程主机
    ## 建立 tasks     目录，用于编写将要执行的任务
    ## 建立 templates 目录，用于存放可变的模板文件
    ## 建立 vars      目录，用于存放变量信息

  2. 建立tasks主文件
    /etc/ansible/roles/install_zabbix_agent/tasks/main.yml

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    ---
      - name: Install Software
        yum: name={{ item }} state=latest
        with_items:
          - libcurl-devel
      - name: Create Zabbix User
        user: name={{ zabbix_user }} state=present createhome=no shell=/sbin/nologin
      - name: Copy Zabbix.tar.gz
        copy: src=zabbix-{{ zabbix_version }}.tar.gz dest={{ zabbix_dir }}/src/zabbix-{{ zabbix_version }}.tar.gz owner=root group=root
      - name: Uncompression Zabbix.tar.gz
        shell: tar zxf {{ zabbix_dir }}/src/zabbix-{{ zabbix_version }}.tar.gz -C {{ zabbix_dir }}/
      - name: Copy Zabbix Start Script
        template: src=zabbix_agentd dest=/etc/init.d/zabbix_agentd owner=root group=root mode=0755
      - name: Copy Zabbix Config File
        template: src=zabbix_agentd.conf dest={{ zabbix_dir }}/zabbix/etc/zabbix_agentd.conf owner={{ zabbix_user }} group={{ zabbix_user }} mode=0644
      - name: Modify Zabbix Dir Permisson
        file: path={{ zabbix_dir }}/zabbix owner={{ zabbix_user }} group={{ zabbix_user }} mode=0755 recurse=yes
      - name: Start Zabbix Service
        shell: /etc/init.d/zabbix_agentd start
      - name: Add Boot Start Zabbix Service
        shell: chkconfig --level 35 zabbix_agentd on

  3. 建立主变量文件
    /etc/ansible/roles/install_zabbix_agent/vars/main.yml

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    zabbix_dir: /usr/local
    zabbix_version: 4.4.7
    zabbix_user: zabbix
    zabbix_port: 10050
    zabbix_server_ip: 34.92.109.248

  4. 建立模板文件
    /etc/ansible/roles/install_zabbix_agent/templates/zabbix_agentd

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    #!/bin/bash
    #
    # chkconfig: - 90 10
    # description:  Starts and stops Zabbix Agent using chkconfig
    #                               Tested on Fedora Core 2 - 5
    #                               Should work on all Fedora Core versions
    #
    # @name:        zabbix_agentd
    # @author:      Alexander Hagenah <[email protected]>
    # @created:     18.04.2006
    #
    # Modified for Zabbix 2.0.0
    # May 2012, Zabbix SIA
    #
    # Source function library.
    . /etc/init.d/functions

    # Variables
    # Edit these to match your system settings

            # Zabbix-Directory
            BASEDIR={{ zabbix_dir }}/zabbix

            # Binary File
            BINARY_NAME=zabbix_agentd

            # Full Binary File Call
            FULLPATH=$BASEDIR/sbin/$BINARY_NAME

            # PID file
            PIDFILE=/tmp/$BINARY_NAME.pid

            # Establish args
            ERROR=0
            STOPPING=0

    #
    # No need to edit the things below
    #

    # application checking status
    if [ -f $PIDFILE  ] && [ -s $PIDFILE ]
            then
            PID=`cat $PIDFILE`

            if [ "x$PID" != "x" ] && kill -0 $PID 2>/dev/null && [ $BINARY_NAME == `ps -e | grep $PID | awk '{print $4}'` ]
            then
                    STATUS="$BINARY_NAME (pid `pidof $APP`) running.."
                    RUNNING=1
            else
                    rm -f $PIDFILE
                    STATUS="$BINARY_NAME (pid file existed ($PID) and now removed) not running.."
                    RUNNING=0
            fi
    else
            if [ `ps -e | grep $BINARY_NAME | head -1 | awk '{ print $1 }'` ]
                    then
                    STATUS="$BINARY_NAME (pid `pidof $APP`, but no pid file) running.."
            else
                    STATUS="$BINARY_NAME (no pid file) not running"
            fi
            RUNNING=0
    fi

    # functions
    start() {
            if [ $RUNNING -eq 1 ]
                    then
                    echo "$0 $ARG: $BINARY_NAME (pid $PID) already running"
            else
                    action $"Starting $BINARY_NAME: " $FULLPATH
                    touch /var/lock/subsys/$BINARY_NAME
            fi
    }

    stop() {
            echo -n $"Shutting down $BINARY_NAME: "
            killproc $BINARY_NAME
            RETVAL=$?
            echo
            [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$BINARY_NAME
            RUNNING=0
    }


    # logic
    case "$1" in
            start)
                    start
                    ;;
            stop)
                    stop
                    ;;
            status)
                    status $BINARY_NAME
                    ;;
            restart)
                    stop
                    sleep 10
                    start
                    ;;
            help|*)
                    echo $"Usage: $0 {start|stop|status|restart|help}"
                    cat <<EOF

                            start           - start $BINARY_NAME
                            stop            - stop $BINARY_NAME
                            status          - show current status of $BINARY_NAME
                            restart         - restart $BINARY_NAME if running by sending a SIGHUP or start if not running
                            help            - this screen

    EOF
            exit 1
            ;;
    esac

    exit 0

/etc/ansible/roles/install_zabbix_agent/templates/zabbix_agentd.conf

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# This is a config file for the Zabbix agent daemon (Unix)
# To get more information about Zabbix, visit http://www.zabbix.com"

############ GENERAL PARAMETERS #################

### Option: PidFile
#       Name of PID file.
#
# Mandatory: no
# Default:
# PidFile=/tmp/zabbix_agentd.pid

### Option: LogFile
#       Name of log file.
#       If not set, syslog is used.
#
# Mandatory: no
# Default:
# LogFile=

LogFile=/tmp/zabbix_agentd.log

### Option: LogFileSize
#       Maximum size of log file in MB.
#       0 - disable automatic log rotation.
#
# Mandatory: no
# Range: 0-1024
# Default:
# LogFileSize=1

### Option: DebugLevel
#       Specifies debug level
#       0 - basic information about starting and stopping of Zabbix processes
#       1 - critical information
#       2 - error information
#       3 - warnings
#       4 - for debugging (produces lots of information)
#
# Mandatory: no
# Range: 0-4
# Default:
# DebugLevel=3

### Option: SourceIP
#       Source IP address for outgoing connections.
#
# Mandatory: no
# Default:
# SourceIP=

### Option: EnableRemoteCommands
#       Whether remote commands from Zabbix server are allowed.
#       0 - not allowed
#       1 - allowed
#
# Mandatory: no
# Default:
# EnableRemoteCommands=0

### Option: LogRemoteCommands
#       Enable logging of executed shell commands as warnings.
#       0 - disabled
#       1 - enabled
#
# Mandatory: no
# Default:
# LogRemoteCommands=0

##### Passive checks related

### Option: Server
#       List of comma delimited IP addresses (or hostnames) of Zabbix servers.
#       Incoming connections will be accepted only from the hosts listed here.
#       If IPv6 support is enabled then '127.0.0.1', '::127.0.0.1', '::ffff:127.0.0.1' are treated equally.
#
# Mandatory: no
# Default:
# Server=

Server={{ zabbix_server_ip }}

### Option: ListenPort
#       Agent will listen on this port for connections from the server.
#
# Mandatory: no
# Range: 1024-32767
# Default:
# ListenPort=10050
ListenPort={{ zabbix_port }}

### Option: ListenIP
#       List of comma delimited IP addresses that the agent should listen on.
#       First IP address is sent to Zabbix server if connecting to it to retrieve list of active checks.
#
# Mandatory: no
# Default:
# ListenIP=0.0.0.0

### Option: StartAgents
#       Number of pre-forked instances of zabbix_agentd that process passive checks.
#       If set to 0, disables passive checks and the agent will not listen on any TCP port.
#
# Mandatory: no
# Range: 0-100
# Default:
# StartAgents=3

##### Active checks related

### Option: ServerActive
#       List of comma delimited IP:port (or hostname:port) pairs of Zabbix servers for active checks.
#       If port is not specified, default port is used.
#       IPv6 addresses must be enclosed in square brackets if port for that host is specified.
#       If port is not specified, square brackets for IPv6 addresses are optional.
#       If this parameter is not specified, active checks are disabled.
#       Example: ServerActive=127.0.0.1:20051,zabbix.domain,[::1]:30051,::1,[12fc::1]
#
# Mandatory: no
# Default:
# ServerActive=

#ServerActive=127.0.0.1:10051

### Option: Hostname
#       Unique, case sensitive hostname.
#       Required for active checks and must match hostname as configured on the server.
#       Value is acquired from HostnameItem if undefined.
#
# Mandatory: no
# Default:
# Hostname=

Hostname={{ ansible_all_ipv4_addresses[1] }}

### Option: HostnameItem
#       Item used for generating Hostname if it is undefined. Ignored if Hostname is defined.
#       Does not support UserParameters or aliases.
#
# Mandatory: no
# Default:
# HostnameItem=system.hostname

### Option: HostMetadata
#       Optional parameter that defines host metadata.
#       Host metadata is used at host auto-registration process.
#       An agent will issue an error and not start if the value is over limit of 255 characters.
#       If not defined, value will be acquired from HostMetadataItem.
#
# Mandatory: no
# Range: 0-255 characters
# Default:
# HostMetadata=

### Option: HostMetadataItem
#       Optional parameter that defines an item used for getting host metadata.
#       Host metadata is used at host auto-registration process.
#       During an auto-registration request an agent will log a warning message if
#       the value returned by specified item is over limit of 255 characters.
#       This option is only used when HostMetadata is not defined.
#
# Mandatory: no
# Default:
# HostMetadataItem=

### Option: RefreshActiveChecks
#       How often list of active checks is refreshed, in seconds.
#
# Mandatory: no
# Range: 60-3600
# Default:
# RefreshActiveChecks=120

### Option: BufferSend
#       Do not keep data longer than N seconds in buffer.
#
# Mandatory: no
# Range: 1-3600
# Default:
# BufferSend=5

### Option: BufferSize
#       Maximum number of values in a memory buffer. The agent will send
#       all collected data to Zabbix Server or Proxy if the buffer is full.
#
# Mandatory: no
# Range: 2-65535
# Default:
# BufferSize=100

### Option: MaxLinesPerSecond
#       Maximum number of new lines the agent will send per second to Zabbix Server
#       or Proxy processing 'log' and 'logrt' active checks.
#       The provided value will be overridden by the parameter 'maxlines',
#       provided in 'log' or 'logrt' item keys.
#
# Mandatory: no
# Range: 1-1000
# Default:
# MaxLinesPerSecond=100

############ ADVANCED PARAMETERS #################

### Option: Alias
#       Sets an alias for an item key. It can be used to substitute long and complex item key with a smaller and simpler one.
#       Multiple Alias parameters may be present. Multiple parameters with the same Alias key are not allowed.
#       Different Alias keys may reference the same item key.
#       For example, to retrieve the ID of user 'zabbix':
#       Alias=zabbix.userid:vfs.file.regexp[/etc/passwd,^zabbix:.:([0-9]+),,,,\1]
#       Now shorthand key zabbix.userid may be used to retrieve data.
#       Aliases can be used in HostMetadataItem but not in HostnameItem parameters.
#
# Mandatory: no
# Range:
# Default:

### Option: Timeout
#       Spend no more than Timeout seconds on processing
#
# Mandatory: no
# Range: 1-30
# Default:
Timeout=20

### Option: AllowRoot
#       Allow the agent to run as 'root'. If disabled and the agent is started by 'root', the agent
#       will try to switch to the user specified by the User configuration option instead.
#       Has no effect if started under a regular user.
#       0 - do not allow
#       1 - allow
#
# Mandatory: no
# Default:
# AllowRoot=0

### Option: User
#       Drop privileges to a specific, existing user on the system.
#       Only has effect if run as 'root' and AllowRoot is disabled.
#
# Mandatory: no
# Default:
# User=zabbix

### Option: Include
#       You may include individual files or all files in a directory in the configuration file.
#       Installing Zabbix will create include directory in /usr/local/etc, unless modified during the compile time.
#
# Mandatory: no
# Default:
# Include=

# Include=/usr/local/etc/zabbix_agentd.userparams.conf
# Include=/usr/local/etc/zabbix_agentd.conf.d/
# Include=/usr/local/etc/zabbix_agentd.conf.d/*.conf

####### USER-DEFINED MONITORED PARAMETERS #######

### Option: UnsafeUserParameters
#       Allow all characters to be passed in arguments to user-defined parameters.
#       0 - do not allow
#       1 - allow
#
# Mandatory: no
# Range: 0-1
# Default:
UnsafeUserParameters=1

### Option: UserParameter
#       User-defined parameter to monitor. There can be several user-defined parameters.
#       Format: UserParameter=<key>,<shell command>
#       See 'zabbix_agentd' directory for examples.
#
# Mandatory: no
# Default:
# UserParameter=

####### LOADABLE MODULES #######

### Option: LoadModulePath
#       Full path to location of agent modules.
#       Default depends on compilation options.
#
# Mandatory: no
# Default:
# LoadModulePath=${libdir}/modules

### Option: LoadModule
#       Module to load at agent startup. Modules are used to extend functionality of the agent.
#       Format: LoadModule=<module.so>
#       The modules must be located in directory specified by LoadModulePath.
#       It is allowed to include multiple LoadModule parameters.
#
# Mandatory: no
# Default:
# LoadModule=

  1. 安装
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    # ansible-playbook /etc/ansible/install_zabbix_agent.yml