• openresty 高可用部署

    openresty 高可用部署

                

    docker keepalived：https://github.com/osixia/docker-keepalived

              

                         

                                        

    keepalived 原理

                               

                      

              

    常见应用：解决nginx、openresty等单点故障，实现高可用部署

    1. nginx/openresty可实现后端服务的负载均衡，但一个集群如果只有一台nginx，会容易出现单点故障；
    2. 可结合keepalived实现主从备份，当nginx、openresty出现故障时，能自动切换到备用节点

                        

    VRRP协议：虚拟路由冗余协议（Virtual Router Redundancy Protocol）

    1. keepalived内置了VRRP协议，对外提供一个虚拟ip（也可为真实服务器ip），供外部访问；
    2. keepalived服务器通过arp广播（同网段传播，无法跨网段）的方式，进行节点之间的通信；
    3. master服务器发生故障时，通过选举策略，自动将backup服务器切换为master服务器；

               

    VRRP 选主策略

    1. virtual ip地址拥有者，优先成为master服务器；
    2. 如果没有virtual ip拥有者，优先级高的节点成为master服务器；
    3. 如果没有virtual ip拥有者，且优先级相同，则ip地址大的成为master服务器

                

    抢占式选主、非抢占式选主

    1. # 相关配置属性
    2. state：节点初始状态（master、backup）
    3. priority：当前节点的优先级，抢占模式下，优先级高的成为master节点
    4. nopreempt：非抢占模式，节点在backup状态下，即使优先级比master节点高，也不会去抢占master服务器
    5.  
    6. # 抢占式选主：master服务器故障恢复后，会重新抢占master服务器
    7. * 优先级高的成为master服务器，优先级低的为backup服务器；
    8. * 当master服务器故障后，优先级高的backup服务器成为master服务器；
    9. * 原master服务器恢复后，如果优先级比当前的master服务器高，
    10.   则会切换称为maeter服务器，当前服务器降级为backup服务器
    11.  
    12. # 非抢占式选主：master服务器故障恢复后，保持backup状态，不会抢占master服务器
    13. * 如果节点的初始状态都是backup，并且标识了nopreempt，则为非抢占模式
    14. * 非抢占模式下，哪个节点先启动，哪个节点就成为master服务器
    15. * 原master服务器故障恢复后，不会去抢占master服务器，避免了master切换，常用于生产环境

              

                    

                                        

    docker keepalived

                         

    下载镜像

    docker pull osixia/keepalived

                  

    配置文件：/usr/local/etc/keepalived/keepalived.conf

    1. global_defs {             # 全剧默认配置
    2.   default_interface eth0  # 默认网卡
    3. }
    4.  
    5. vrrp_instance VI_1 {
    6.   interface eth0          # 网卡
    7.  
    8.   state BACKUP            # 节点初始状态
    9.   virtual_router_id 51    # 虚拟路由id，同一集群id需保持一致
    10.   priority 150            # 优先级
    11.   nopreempt               # 非抢占模式
    12.  
    13.   unicast_peer {          # 路由节点
    14.     192.168.1.10
    15.     192.168.1.11
    16.   }
    17.  
    18.   virtual_ipaddress {     # 虚拟ip地址
    19.     192.168.1.231
    20.     192.168.1.232
    21.   }
    22.  
    23.   authentication {         # 认证
    24.     auth_type PASS
    25.     auth_pass d0cker
    26.   }
    27.  
    28.   notify "/container/service/keepalived/assets/notify.sh"
    29. }

               

    通知脚本：/container/service/keepalived/assets/notify.sh

    1. #!/bin/bash
    2.  
    3. # for ANY state transition.
    4. # "notify" script is called AFTER the
    5. # notify_* script(s) and is executed
    6. # with 3 arguments provided by keepalived
    7. # (ie don't include parameters in the notify line).
    8. # arguments
    9. # $1 = "GROUP"|"INSTANCE"
    10. # $2 = name of group or instance
    11. # $3 = target state of transition
    12. #     ("MASTER"|"BACKUP"|"FAULT")
    13.  
    14. TYPE=$1
    15. NAME=$2
    16. STATE=$3
    17.  
    18. case $STATE in
    19.     "MASTER") echo "I'm the MASTER! Whup whup." > /proc/1/fd/1
    20.         exit 0
    21.     ;;
    22.     "BACKUP") echo "Ok, i'm just a backup, great." > /proc/1/fd/1
    23.         exit 0
    24.     ;;
    25.     "FAULT")  echo "Fault, what ?" > /proc/1/fd/1
    26.         exit 0
    27.     ;;
    28.     *)        echo "Unknown state" > /proc/1/fd/1
    29.         exit 1
    30.     ;;
    31. esac

                

    *************

    创建集群

           

    配置文件（主备服务器配置相同，非抢占模式）

    1. global_defs {
    2.   default_interface eth0
    3. }
    4.  
    5. vrrp_instance VI_1 {
    6.   interface eth0
    7.  
    8.   state BACKUP
    9.   virtual_router_id 50
    10.   priority 150
    11.   nopreempt
    12.  
    13.   unicast_peer {
    14.     172.18.0.21
    15.     172.18.0.22
    16.     172.18.0.23
    17.   }
    18.  
    19.   virtual_ipaddress {
    20.     172.18.0.3
    21.   }
    22.  
    23.   authentication {
    24.     auth_type PASS
    25.     auth_pass d0cker
    26.   }
    27.  
    28.   notify "/container/service/keepalived/assets/notify.sh"
    29. }

                

    创建容器

    1. docker run -it -d --net fixed --ip 172.18.0.21 --privileged \
    2. -v /Users/huli/lua/openresty/keep/keepalived.conf:/usr/local/etc/keepalived/keepalived.conf \
    3. --name keepalived osixia/keepalived
    4.  
    5. docker run -it -d --net fixed --ip 172.18.0.22 --privileged \
    6. -v /Users/huli/lua/openresty/keep/keepalived.conf:/usr/local/etc/keepalived/keepalived.conf \
    7. --name keepalived2 osixia/keepalived
    8.  
    9. docker run -it -d --net fixed --ip 172.18.0.23 --privileged \
    10. -v /Users/huli/lua/openresty/keep/keepalived.conf:/usr/local/etc/keepalived/keepalived.conf \
    11. --name keepalived3 osixia/keepalived

            

    查看容器日志：keepalived

    1. huli@hudeMacBook-Pro ~ % docker logs keepalived 
    2. *** CONTAINER_LOG_LEVEL = 3 (info)
    3. *** Search service in CONTAINER_SERVICE_DIR = /container/service :
    4. *** link /container/service/keepalived/startup.sh to /container/run/startup/keepalived
    5. *** link /container/service/keepalived/process.sh to /container/run/process/keepalived/run
    6. *** link /container/service/keepalived/finish.sh to /container/run/process/keepalived/finish
    7. *** Set environment for startup files
    8. *** Environment files will be proccessed in this order : 
    9. Caution: previously defined variables will not be overriden.
    10. /container/environment/99-default/default.yaml
    11.  
    12. To see how this files are processed and environment variables values,
    13. run this container with '--loglevel debug'
    14. /container/tool/run:294: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
    15.   env_vars = yaml.load(f)
    16. *** Running /container/run/startup/keepalived...
    17. *** Set environment for container process
    18. *** Environment files will be proccessed in this order : 
    19. Caution: previously defined variables will not be overriden.
    20. /container/environment/99-default/default.yaml
    21.  
    22. To see how this files are processed and environment variables values,
    23. run this container with '--loglevel debug'
    24. *** Running /container/run/process/keepalived/run...
    25. Waiting config file /usr/local/etc/keepalived/keepalived.confok
    26. Tue Aug  2 05:46:44 2022: Starting Keepalived v2.0.20 (01/22,2020)
    27. Keepalived[56]: Starting Keepalived v2.0.20 (01/22,2020)
    28. Tue Aug  2 05:46:44 2022: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    29. Keepalived[56]: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    30. Tue Aug  2 05:46:44 2022: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    31. Keepalived[56]: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    32. Tue Aug  2 05:46:44 2022:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    33. Keepalived[56]:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    34. Tue Aug  2 05:46:44 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    35. Keepalived[56]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    36. Tue Aug  2 05:46:44 2022: Starting VRRP child process, pid=58
    37. Keepalived[56]: Starting VRRP child process, pid=58
    38. Tue Aug  2 05:46:44 2022: Registering Kernel netlink reflector
    39. Keepalived_vrrp[58]: Registering Kernel netlink reflector
    40. Tue Aug  2 05:46:44 2022: Registering Kernel netlink command channel
    41. Keepalived_vrrp[58]: Registering Kernel netlink command channel
    42. Tue Aug  2 05:46:44 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    43. Keepalived_vrrp[58]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    44. Tue Aug  2 05:46:44 2022: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    45. Keepalived_vrrp[58]: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    46. Tue Aug  2 05:46:44 2022: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    47. Keepalived_vrrp[58]: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    48. Tue Aug  2 05:46:44 2022: Assigned address 172.18.0.21 for interface eth0
    49. Keepalived_vrrp[58]: Assigned address 172.18.0.21 for interface eth0
    50. Tue Aug  2 05:46:44 2022: Registering gratuitous ARP shared channel
    51. Keepalived_vrrp[58]: Registering gratuitous ARP shared channel
    52. Tue Aug  2 05:46:44 2022: (VI_1) removing VIPs.
    53. Keepalived_vrrp[58]: (VI_1) removing VIPs.
    54. Tue Aug  2 05:46:44 2022: ------< Global definitions >------
    55. Keepalived_vrrp[58]: ------< Global definitions >------
    56. Tue Aug  2 05:46:44 2022:  Network namespace = (default)
    57. Keepalived_vrrp[58]:  Network namespace = (default)
    58. Tue Aug  2 05:46:44 2022:  Router ID = 5d02fb9ca56a
    59. Keepalived_vrrp[58]:  Router ID = 5d02fb9ca56a
    60. Tue Aug  2 05:46:44 2022:  Default smtp_alert = unset
    61. Keepalived_vrrp[58]:  Default smtp_alert = unset
    62. Tue Aug  2 05:46:44 2022:  Default smtp_alert_vrrp = unset
    63. Keepalived_vrrp[58]:  Default smtp_alert_vrrp = unset
    64. Tue Aug  2 05:46:44 2022:  Default smtp_alert_checker = unset
    65. Keepalived_vrrp[58]:  Default smtp_alert_checker = unset
    66. Tue Aug  2 05:46:44 2022:  Checkers log all failures = false
    67. Keepalived_vrrp[58]:  Checkers log all failures = false
    68. Tue Aug  2 05:46:44 2022:  Dynamic interfaces = false
    69. Keepalived_vrrp[58]:  Dynamic interfaces = false
    70. Tue Aug  2 05:46:44 2022:  Default interface = eth0
    71. Keepalived_vrrp[58]:  Default interface = eth0
    72. Tue Aug  2 05:46:44 2022:  LVS flush = false
    73. Keepalived_vrrp[58]:  LVS flush = false
    74. Tue Aug  2 05:46:44 2022:  LVS flush on stop = disabled
    75. Keepalived_vrrp[58]:  LVS flush on stop = disabled
    76. Tue Aug  2 05:46:44 2022:  VRRP notify priority changes = false
    77. Keepalived_vrrp[58]:  VRRP notify priority changes = false
    78. Tue Aug  2 05:46:44 2022:  VRRP IPv4 mcast group = 224.0.0.18
    79. Keepalived_vrrp[58]:  VRRP IPv4 mcast group = 224.0.0.18
    80. Tue Aug  2 05:46:44 2022:  VRRP IPv6 mcast group = ff02::12
    81. Keepalived_vrrp[58]:  VRRP IPv6 mcast group = ff02::12
    82. Tue Aug  2 05:46:44 2022:  Gratuitous ARP delay = 5
    83. Keepalived_vrrp[58]:  Gratuitous ARP delay = 5
    84. Tue Aug  2 05:46:44 2022:  Gratuitous ARP repeat = 5
    85. Keepalived_vrrp[58]:  Gratuitous ARP repeat = 5
    86. Tue Aug  2 05:46:44 2022:  Gratuitous ARP refresh timer = 0
    87. Keepalived_vrrp[58]:  Gratuitous ARP refresh timer = 0
    88. Tue Aug  2 05:46:44 2022:  Gratuitous ARP refresh repeat = 1
    89. Keepalived_vrrp[58]:  Gratuitous ARP refresh repeat = 1
    90. Tue Aug  2 05:46:44 2022:  Gratuitous ARP lower priority delay = 5
    91. Keepalived_vrrp[58]:  Gratuitous ARP lower priority delay = 5
    92. Tue Aug  2 05:46:44 2022:  Gratuitous ARP lower priority repeat = 5
    93. Keepalived_vrrp[58]:  Gratuitous ARP lower priority repeat = 5
    94. Tue Aug  2 05:46:44 2022:  Send advert after receive lower priority advert = true

              

    查看容器日志：keepalived2

    1. huli@hudeMacBook-Pro ~ % docker logs keepalived2
    2. *** CONTAINER_LOG_LEVEL = 3 (info)
    3. *** Search service in CONTAINER_SERVICE_DIR = /container/service :
    4. *** link /container/service/keepalived/startup.sh to /container/run/startup/keepalived
    5. *** link /container/service/keepalived/process.sh to /container/run/process/keepalived/run
    6. *** link /container/service/keepalived/finish.sh to /container/run/process/keepalived/finish
    7. *** Set environment for startup files
    8. *** Environment files will be proccessed in this order : 
    9. Caution: previously defined variables will not be overriden.
    10. /container/environment/99-default/default.yaml
    11.  
    12. To see how this files are processed and environment variables values,
    13. run this container with '--loglevel debug'
    14. /container/tool/run:294: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
    15.   env_vars = yaml.load(f)
    16. *** Running /container/run/startup/keepalived...
    17. *** Set environment for container process
    18. *** Environment files will be proccessed in this order : 
    19. Caution: previously defined variables will not be overriden.
    20. /container/environment/99-default/default.yaml
    21.  
    22. To see how this files are processed and environment variables values,
    23. run this container with '--loglevel debug'
    24. *** Running /container/run/process/keepalived/run...
    25. Waiting config file /usr/local/etc/keepalived/keepalived.confok
    26. Tue Aug  2 05:46:59 2022: Starting Keepalived v2.0.20 (01/22,2020)
    27. Keepalived[55]: Starting Keepalived v2.0.20 (01/22,2020)
    28. Tue Aug  2 05:46:59 2022: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    29. Keepalived[55]: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    30. Tue Aug  2 05:46:59 2022: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    31. Keepalived[55]: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    32. Tue Aug  2 05:46:59 2022:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    33. Keepalived[55]:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    34. Tue Aug  2 05:46:59 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    35. Keepalived[55]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    36. Tue Aug  2 05:46:59 2022: Starting VRRP child process, pid=57
    37. Keepalived[55]: Starting VRRP child process, pid=57
    38. Tue Aug  2 05:46:59 2022: Registering Kernel netlink reflector
    39. Keepalived_vrrp[57]: Registering Kernel netlink reflector
    40. Tue Aug  2 05:46:59 2022: Registering Kernel netlink command channel
    41. Keepalived_vrrp[57]: Registering Kernel netlink command channel
    42. Tue Aug  2 05:46:59 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    43. Keepalived_vrrp[57]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    44. Tue Aug  2 05:46:59 2022: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    45. Keepalived_vrrp[57]: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    46. Tue Aug  2 05:46:59 2022: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    47. Keepalived_vrrp[57]: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    48. Tue Aug  2 05:46:59 2022: Assigned address 172.18.0.22 for interface eth0
    49. Keepalived_vrrp[57]: Assigned address 172.18.0.22 for interface eth0
    50. Tue Aug  2 05:46:59 2022: Registering gratuitous ARP shared channel
    51. Keepalived_vrrp[57]: Registering gratuitous ARP shared channel
    52. Tue Aug  2 05:46:59 2022: (VI_1) removing VIPs.
    53. Keepalived_vrrp[57]: (VI_1) removing VIPs.
    54. Tue Aug  2 05:46:59 2022: ------< Global definitions >------
    55. Keepalived_vrrp[57]: ------< Global definitions >------
    56. Tue Aug  2 05:46:59 2022:  Network namespace = (default)
    57. Keepalived_vrrp[57]:  Network namespace = (default)
    58. Tue Aug  2 05:46:59 2022:  Router ID = 0b054866c757
    59. Keepalived_vrrp[57]:  Router ID = 0b054866c757
    60. Tue Aug  2 05:46:59 2022:  Default smtp_alert = unset
    61. Keepalived_vrrp[57]:  Default smtp_alert = unset
    62. Tue Aug  2 05:46:59 2022:  Default smtp_alert_vrrp = unset
    63. Keepalived_vrrp[57]:  Default smtp_alert_vrrp = unset
    64. Tue Aug  2 05:46:59 2022:  Default smtp_alert_checker = unset
    65. Keepalived_vrrp[57]:  Default smtp_alert_checker = unset
    66. Tue Aug  2 05:46:59 2022:  Checkers log all failures = false
    67. Keepalived_vrrp[57]:  Checkers log all failures = false
    68. Tue Aug  2 05:46:59 2022:  Dynamic interfaces = false
    69. Keepalived_vrrp[57]:  Dynamic interfaces = false
    70. Tue Aug  2 05:46:59 2022:  Default interface = eth0
    71. Keepalived_vrrp[57]:  Default interface = eth0
    72. Tue Aug  2 05:46:59 2022:  LVS flush = false
    73. Keepalived_vrrp[57]:  LVS flush = false
    74. Tue Aug  2 05:46:59 2022:  LVS flush on stop = disabled
    75. Keepalived_vrrp[57]:  LVS flush on stop = disabled
    76. Tue Aug  2 05:46:59 2022:  VRRP notify priority changes = false
    77. Keepalived_vrrp[57]:  VRRP notify priority changes = false
    78. Tue Aug  2 05:46:59 2022:  VRRP IPv4 mcast group = 224.0.0.18
    79. Keepalived_vrrp[57]:  VRRP IPv4 mcast group = 224.0.0.18
    80. Tue Aug  2 05:46:59 2022:  VRRP IPv6 mcast group = ff02::12
    81. Keepalived_vrrp[57]:  VRRP IPv6 mcast group = ff02::12
    82. Tue Aug  2 05:46:59 2022:  Gratuitous ARP delay = 5
    83. Keepalived_vrrp[57]:  Gratuitous ARP delay = 5
    84. Tue Aug  2 05:46:59 2022:  Gratuitous ARP repeat = 5
    85. Keepalived_vrrp[57]:  Gratuitous ARP repeat = 5
    86. Tue Aug  2 05:46:59 2022:  Gratuitous ARP refresh timer = 0
    87. Keepalived_vrrp[57]:  Gratuitous ARP refresh timer = 0
    88. Tue Aug  2 05:46:59 2022:  Gratuitous ARP refresh repeat = 1
    89. Keepalived_vrrp[57]:  Gratuitous ARP refresh repeat = 1
    90. Tue Aug  2 05:46:59 2022:  Gratuitous ARP lower priority delay = 5
    91. Keepalived_vrrp[57]:  Gratuitous ARP lower priority delay = 5
    92. Tue Aug  2 05:46:59 2022:  Gratuitous ARP lower priority repeat = 5
    93. Keepalived_vrrp[57]:  Gratuitous ARP lower priority repeat = 5
    94. Tue Aug  2 05:46:59 2022:  Send advert after receive lower priority advert = true
    95. Keepalived_vrrp[57]:  Send advert after receive lower priority advert = true
    96. Tue Aug  2 05:46:59 2022:  Send advert after receive higher priority advert = false
    97. Keepalived_vrrp[57]:  Send advert after receive higher priority advert = false
    98. Tue Aug  2 05:46:59 2022:  Gratuitous ARP interval = 0.000000
    99. Keepalived_vrrp[57]:  Gratuitous ARP interval = 0.000000
    100. Tue Aug  2 05:46:59 2022:  Gratuitous NA interval = 0.000000
    101. Keepalived_vrrp[57]:  Gratuitous NA interval = 0.000000
    102. Tue Aug  2 05:46:59 2022:  VRRP default protocol version = 2
    103. Keepalived_vrrp[57]:  VRRP default protocol version = 2
    104. Tue Aug  2 05:46:59 2022:  VRRP check unicast_src = false
    105. Keepalived_vrrp[57]:  VRRP check unicast_src = false
    106. Tue Aug  2 05:46:59 2022:  VRRP skip check advert addresses = false
    107. Keepalived_vrrp[57]:  VRRP skip check advert addresses = false
    108. Tue Aug  2 05:46:59 2022:  VRRP strict mode = false
    109. Keepalived_vrrp[57]:  VRRP strict mode = false
    110. Tue Aug  2 05:46:59 2022:  VRRP process priority = 0
    111. Keepalived_vrrp[57]:  VRRP process priority = 0
    112. Tue Aug  2 05:46:59 2022:  VRRP don't swap = false
    113. Keepalived_vrrp[57]:  VRRP don't swap = false
    114. Tue Aug  2 05:46:59 2022:  VRRP realtime priority = 0
    115. Keepalived_vrrp[57]:  VRRP realtime priority = 0
    116. Tue Aug  2 05:46:59 2022:  Checker process priority = 0
    117. Keepalived_vrrp[57]:  Checker process priority = 0
    118. Tue Aug  2 05:46:59 2022:  Checker don't swap = false
    119. Keepalived_vrrp[57]:  Checker don't swap = false
    120. Tue Aug  2 05:46:59 2022:  Checker realtime priority = 0
    121. Keepalived_vrrp[57]:  Checker realtime priority = 0
    122. Tue Aug  2 05:46:59 2022:  Script security disabled
    123. Keepalived_vrrp[57]:  Script security disabled
    124. Tue Aug  2 05:46:59 2022:  Default script uid:gid 0:0
    125. Keepalived_vrrp[57]:  Default script uid:gid 0:0
    126. Tue Aug  2 05:46:59 2022:  vrrp_netlink_cmd_rcv_bufs = 0
    127. Keepalived_vrrp[57]:  vrrp_netlink_cmd_rcv_bufs = 0
    128. Tue Aug  2 05:46:59 2022:  vrrp_netlink_cmd_rcv_bufs_force = 0
    129. Keepalived_vrrp[57]:  vrrp_netlink_cmd_rcv_bufs_force = 0
    130. Tue Aug  2 05:46:59 2022:  vrrp_netlink_monitor_rcv_bufs = 0
    131. Keepalived_vrrp[57]:  vrrp_netlink_monitor_rcv_bufs = 0
    132. Tue Aug  2 05:46:59 2022:  vrrp_netlink_monitor_rcv_bufs_force = 0
    133. Keepalived_vrrp[57]:  vrrp_netlink_monitor_rcv_bufs_force = 0
    134. Tue Aug  2 05:46:59 2022:  process_monitor_rcv_bufs = 0
    135. Keepalived_vrrp[57]:  process_monitor_rcv_bufs = 0
    136. Tue Aug  2 05:46:59 2022:  process_monitor_rcv_bufs_force = 0
    137. Keepalived_vrrp[57]:  process_monitor_rcv_bufs_force = 0
    138. Tue Aug  2 05:46:59 2022:  lvs_netlink_cmd_rcv_bufs = 0
    139. Keepalived_vrrp[57]:  lvs_netlink_cmd_rcv_bufs = 0
    140. Tue Aug  2 05:46:59 2022:  lvs_netlink_cmd_rcv_bufs_force = 0
    141. Keepalived_vrrp[57]:  lvs_netlink_cmd_rcv_bufs_force = 0
    142. Tue Aug  2 05:46:59 2022:  lvs_netlink_monitor_rcv_bufs = 0
    143. Keepalived_vrrp[57]:  lvs_netlink_monitor_rcv_bufs = 0
    144. Tue Aug  2 05:46:59 2022:  lvs_netlink_monitor_rcv_bufs_force = 0
    145. Keepalived_vrrp[57]:  lvs_netlink_monitor_rcv_bufs_force = 0
    146. Tue Aug  2 05:46:59 2022:  rs_init_notifies = 0
    147. Keepalived_vrrp[57]:  rs_init_notifies = 0
    148. Tue Aug  2 05:46:59 2022:  no_checker_emails = 0
    149. Keepalived_vrrp[57]:  no_checker_emails = 0
    150. Tue Aug  2 05:46:59 2022:  rx_bufs_multiples = 3
    151. Keepalived_vrrp[57]:  rx_bufs_multiples = 3
    152. Tue Aug  2 05:46:59 2022:  umask = 0177
    153. Keepalived_vrrp[57]:  umask = 0177
    154. Tue Aug  2 05:46:59 2022: ------< VRRP Topology >------
    155. Keepalived_vrrp[57]: ------< VRRP Topology >------
    156. Tue Aug  2 05:46:59 2022:  VRRP Instance = VI_1
    157. Keepalived_vrrp[57]:  VRRP Instance = VI_1
    158. Tue Aug  2 05:46:59 2022:    VRRP Version = 2
    159. Keepalived_vrrp[57]:    VRRP Version = 2
    160. Tue Aug  2 05:46:59 2022:    Wantstate = BACKUP
    161. Keepalived_vrrp[57]:    Wantstate = BACKUP
    162. Tue Aug  2 05:46:59 2022:    Interface = eth0
    163. Keepalived_vrrp[57]:    Interface = eth0
    164. Tue Aug  2 05:46:59 2022:    Using src_ip = 172.18.0.22
    165. Keepalived_vrrp[57]:    Using src_ip = 172.18.0.22
    166. Tue Aug  2 05:46:59 2022:    Gratuitous ARP delay = 5
    167. Keepalived_vrrp[57]:    Gratuitous ARP delay = 5
    168. Tue Aug  2 05:46:59 2022:    Gratuitous ARP repeat = 5
    169. Keepalived_vrrp[57]:    Gratuitous ARP repeat = 5
    170. Tue Aug  2 05:46:59 2022:    Gratuitous ARP refresh = 0
    171. Keepalived_vrrp[57]:    Gratuitous ARP refresh = 0
    172. Tue Aug  2 05:46:59 2022:    Gratuitous ARP refresh repeat = 1
    173. Keepalived_vrrp[57]:    Gratuitous ARP refresh repeat = 1
    174. Tue Aug  2 05:46:59 2022:    Gratuitous ARP lower priority delay = 5
    175. Keepalived_vrrp[57]:    Gratuitous ARP lower priority delay = 5
    176. Tue Aug  2 05:46:59 2022:    Gratuitous ARP lower priority repeat = 5
    177. Keepalived_vrrp[57]:    Gratuitous ARP lower priority repeat = 5
    178. Tue Aug  2 05:46:59 2022:    Send advert after receive lower priority advert = true
    179. Keepalived_vrrp[57]:    Send advert after receive lower priority advert = true
    180. Tue Aug  2 05:46:59 2022:    Send advert after receive higher priority advert = false
    181. Keepalived_vrrp[57]:    Send advert after receive higher priority advert = false
    182. Tue Aug  2 05:46:59 2022:    Virtual Router ID = 51
    183. Keepalived_vrrp[57]:    Virtual Router ID = 51
    184. Tue Aug  2 05:46:59 2022:    Priority = 150
    185. Keepalived_vrrp[57]:    Priority = 150
    186. Tue Aug  2 05:46:59 2022:    Advert interval = 1 sec
    187. Keepalived_vrrp[57]:    Advert interval = 1 sec
    188. Tue Aug  2 05:46:59 2022:    Accept = enabled
    189. Keepalived_vrrp[57]:    Accept = enabled
    190. Tue Aug  2 05:46:59 2022:    Preempt = disabled
    191. Keepalived_vrrp[57]:    Preempt = disabled
    192. Tue Aug  2 05:46:59 2022:    Promote_secondaries = disabled
    193. Keepalived_vrrp[57]:    Promote_secondaries = disabled
    194. Tue Aug  2 05:46:59 2022:    Authentication type = SIMPLE_PASSWORD
    195. Keepalived_vrrp[57]:    Authentication type = SIMPLE_PASSWORD
    196. Tue Aug  2 05:46:59 2022:    Password = d0cker
    197. Keepalived_vrrp[57]:    Password = d0cker
    198. Tue Aug  2 05:46:59 2022:    Virtual IP = 2
    199. Keepalived_vrrp[57]:    Virtual IP = 2
    200. Tue Aug  2 05:46:59 2022:      172.18.0.3 dev eth0 scope global
    201. Keepalived_vrrp[57]:      172.18.0.3 dev eth0 scope global
    202. Tue Aug  2 05:46:59 2022:      172.18.0.4 dev eth0 scope global
    203. Keepalived_vrrp[57]:      172.18.0.4 dev eth0 scope global
    204. Tue Aug  2 05:46:59 2022:    Unicast Peer = 3
    205. Keepalived_vrrp[57]:    Unicast Peer = 3
    206. Tue Aug  2 05:46:59 2022:      172.18.0.21
    207. Keepalived_vrrp[57]:      172.18.0.21
    208. Tue Aug  2 05:46:59 2022:      172.18.0.22
    209. Keepalived_vrrp[57]:      172.18.0.22
    210. Tue Aug  2 05:46:59 2022:      172.18.0.23
    211. Keepalived_vrrp[57]:      172.18.0.23
    212. Tue Aug  2 05:46:59 2022:    Unicast checksum compatibility = no
    213. Keepalived_vrrp[57]:    Unicast checksum compatibility = no
    214. Tue Aug  2 05:46:59 2022:    No sockets allocated
    215. Keepalived_vrrp[57]:    No sockets allocated
    216. Tue Aug  2 05:46:59 2022:    Using smtp notification = no
    217. Keepalived_vrrp[57]:    Using smtp notification = no
    218. Tue Aug  2 05:46:59 2022:    Generic state transition script = '/container/service/keepalived/assets/notify.sh', uid:gid 0:0
    219. Keepalived_vrrp[57]:    Generic state transition script = '/container/service/keepalived/assets/notify.sh', uid:gid 0:0
    220. Tue Aug  2 05:46:59 2022:    Notify priority changes = false
    221. Keepalived_vrrp[57]:    Notify priority changes = false
    222. Tue Aug  2 05:46:59 2022: ------< Interfaces >------
    223. Keepalived_vrrp[57]: ------< Interfaces >------
    224. Tue Aug  2 05:46:59 2022:  Name = lo
    225. Keepalived_vrrp[57]:  Name = lo
    226. Tue Aug  2 05:46:59 2022:    index = 1
    227. Keepalived_vrrp[57]:    index = 1
    228. Tue Aug  2 05:46:59 2022:    IPv4 address = 127.0.0.1
    229. Keepalived_vrrp[57]:    IPv4 address = 127.0.0.1
    230. Tue Aug  2 05:46:59 2022:    IPv6 address = (none)
    231. Keepalived_vrrp[57]:    IPv6 address = (none)
    232. Tue Aug  2 05:46:59 2022:    State = UP, RUNNING, no broadcast, loopback, no multicast
    233. Keepalived_vrrp[57]:    State = UP, RUNNING, no broadcast, loopback, no multicast
    234. Tue Aug  2 05:46:59 2022:    MTU = 65536
    235. Keepalived_vrrp[57]:    MTU = 65536
    236. Tue Aug  2 05:46:59 2022:    HW Type = LOOPBACK
    237. Keepalived_vrrp[57]:    HW Type = LOOPBACK
    238. Tue Aug  2 05:46:59 2022:    NIC netlink status update
    239. Keepalived_vrrp[57]:    NIC netlink status update
    240. Tue Aug  2 05:46:59 2022:    Reset ARP config counter 0
    241. Keepalived_vrrp[57]:    Reset ARP config counter 0
    242. Tue Aug  2 05:46:59 2022:    Original arp_ignore 0
    243. Keepalived_vrrp[57]:    Original arp_ignore 0
    244. Tue Aug  2 05:46:59 2022:    Original arp_filter 0
    245. Keepalived_vrrp[57]:    Original arp_filter 0
    246. Tue Aug  2 05:46:59 2022:    Original promote_secondaries 0
    247. Keepalived_vrrp[57]:    Original promote_secondaries 0
    248. Tue Aug  2 05:46:59 2022:    Reset promote_secondaries counter 0
    249. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    250. Tue Aug  2 05:46:59 2022:    Tracking VRRP instances = 0
    251. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    252. Tue Aug  2 05:46:59 2022:  Name = tunl0
    253. Keepalived_vrrp[57]:  Name = tunl0
    254. Tue Aug  2 05:46:59 2022:    index = 2
    255. Keepalived_vrrp[57]:    index = 2
    256. Tue Aug  2 05:46:59 2022:    IPv4 address = (none)
    257. Keepalived_vrrp[57]:    IPv4 address = (none)
    258. Tue Aug  2 05:46:59 2022:    IPv6 address = (none)
    259. Keepalived_vrrp[57]:    IPv6 address = (none)
    260. Tue Aug  2 05:46:59 2022:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    261. Keepalived_vrrp[57]:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    262. Tue Aug  2 05:46:59 2022:    MTU = 1480
    263. Keepalived_vrrp[57]:    MTU = 1480
    264. Tue Aug  2 05:46:59 2022:    HW Type = UNKNOWN (768)
    265. Keepalived_vrrp[57]:    HW Type = UNKNOWN (768)
    266. Tue Aug  2 05:46:59 2022:    NIC netlink status update
    267. Keepalived_vrrp[57]:    NIC netlink status update
    268. Tue Aug  2 05:46:59 2022:    Reset ARP config counter 0
    269. Keepalived_vrrp[57]:    Reset ARP config counter 0
    270. Tue Aug  2 05:46:59 2022:    Original arp_ignore 0
    271. Keepalived_vrrp[57]:    Original arp_ignore 0
    272. Tue Aug  2 05:46:59 2022:    Original arp_filter 0
    273. Keepalived_vrrp[57]:    Original arp_filter 0
    274. Tue Aug  2 05:46:59 2022:    Original promote_secondaries 0
    275. Keepalived_vrrp[57]:    Original promote_secondaries 0
    276. Tue Aug  2 05:46:59 2022:    Reset promote_secondaries counter 0
    277. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    278. Tue Aug  2 05:46:59 2022:    Tracking VRRP instances = 0
    279. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    280. Tue Aug  2 05:46:59 2022:  Name = ip6tnl0
    281. Keepalived_vrrp[57]:  Name = ip6tnl0
    282. Tue Aug  2 05:46:59 2022:    index = 3
    283. Keepalived_vrrp[57]:    index = 3
    284. Tue Aug  2 05:46:59 2022:    IPv4 address = (none)
    285. Keepalived_vrrp[57]:    IPv4 address = (none)
    286. Tue Aug  2 05:46:59 2022:    IPv6 address = (none)
    287. Keepalived_vrrp[57]:    IPv6 address = (none)
    288. Tue Aug  2 05:46:59 2022:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    289. Keepalived_vrrp[57]:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    290. Tue Aug  2 05:46:59 2022:    MTU = 1452
    291. Keepalived_vrrp[57]:    MTU = 1452
    292. Tue Aug  2 05:46:59 2022:    HW Type = UNKNOWN (769)
    293. Keepalived_vrrp[57]:    HW Type = UNKNOWN (769)
    294. Tue Aug  2 05:46:59 2022:    NIC netlink status update
    295. Keepalived_vrrp[57]:    NIC netlink status update
    296. Tue Aug  2 05:46:59 2022:    Reset ARP config counter 0
    297. Keepalived_vrrp[57]:    Reset ARP config counter 0
    298. Tue Aug  2 05:46:59 2022:    Original arp_ignore 0
    299. Keepalived_vrrp[57]:    Original arp_ignore 0
    300. Tue Aug  2 05:46:59 2022:    Original arp_filter 0
    301. Keepalived_vrrp[57]:    Original arp_filter 0
    302. Tue Aug  2 05:46:59 2022:    Original promote_secondaries 0
    303. Keepalived_vrrp[57]:    Original promote_secondaries 0
    304. Tue Aug  2 05:46:59 2022:    Reset promote_secondaries counter 0
    305. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    306. Tue Aug  2 05:46:59 2022:    Tracking VRRP instances = 0
    307. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    308. Tue Aug  2 05:46:59 2022:  Name = eth0
    309. Keepalived_vrrp[57]:  Name = eth0
    310. Tue Aug  2 05:46:59 2022:    index = 21
    311. Keepalived_vrrp[57]:    index = 21
    312. Tue Aug  2 05:46:59 2022:    IPv4 address = 172.18.0.22
    313. Keepalived_vrrp[57]:    IPv4 address = 172.18.0.22
    314. Tue Aug  2 05:46:59 2022:    IPv6 address = (none)
    315. Keepalived_vrrp[57]:    IPv6 address = (none)
    316. Tue Aug  2 05:46:59 2022:    MAC = 02:42:ac:12:00:16
    317. Keepalived_vrrp[57]:    MAC = 02:42:ac:12:00:16
    318. Tue Aug  2 05:46:59 2022:    MAC broadcast = ff:ff:ff:ff:ff:ff
    319. Keepalived_vrrp[57]:    MAC broadcast = ff:ff:ff:ff:ff:ff
    320. Tue Aug  2 05:46:59 2022:    State = UP, RUNNING
    321. Keepalived_vrrp[57]:    State = UP, RUNNING
    322. Tue Aug  2 05:46:59 2022:    MTU = 1500
    323. Keepalived_vrrp[57]:    MTU = 1500
    324. Tue Aug  2 05:46:59 2022:    HW Type = ETHERNET
    325. Keepalived_vrrp[57]:    HW Type = ETHERNET
    326. Tue Aug  2 05:46:59 2022:    NIC netlink status update
    327. Keepalived_vrrp[57]:    NIC netlink status update
    328. Tue Aug  2 05:46:59 2022:    Reset ARP config counter 0
    329. Keepalived_vrrp[57]:    Reset ARP config counter 0
    330. Tue Aug  2 05:46:59 2022:    Original arp_ignore 0
    331. Keepalived_vrrp[57]:    Original arp_ignore 0
    332. Tue Aug  2 05:46:59 2022:    Original arp_filter 0
    333. Keepalived_vrrp[57]:    Original arp_filter 0
    334. Tue Aug  2 05:46:59 2022:    Original promote_secondaries 0
    335. Keepalived_vrrp[57]:    Original promote_secondaries 0
    336. Tue Aug  2 05:46:59 2022:    Reset promote_secondaries counter 0
    337. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    338. Tue Aug  2 05:46:59 2022:    Tracking VRRP instances = 1
    339. Keepalived_vrrp[57]:    Tracking VRRP instances = 1
    340. Tue Aug  2 05:46:59 2022:      VI_1, weight 0
    341. Keepalived_vrrp[57]:      VI_1, weight 0
    342. Tue Aug  2 05:46:59 2022: (VI_1) Entering BACKUP STATE (init)
    343. Keepalived_vrrp[57]: (VI_1) Entering BACKUP STATE (init)
    344. Tue Aug  2 05:46:59 2022: VRRP sockpool: [ifindex(21), family(IPv4), proto(112), unicast(1), fd(11,12)]
    345. Keepalived_vrrp[57]: VRRP sockpool: [ifindex(21), family(IPv4), proto(112), unicast(1), fd(11,12)]
    346.  
    347. # 当前节点为backup节点
    348. Ok, i'm just a backup, great.

              

    查看容器日志：keepalived3

    1. huli@hudeMacBook-Pro ~ % docker logs keepalived3            
    2. *** CONTAINER_LOG_LEVEL = 3 (info)
    3. *** Search service in CONTAINER_SERVICE_DIR = /container/service :
    4. *** link /container/service/keepalived/startup.sh to /container/run/startup/keepalived
    5. *** link /container/service/keepalived/process.sh to /container/run/process/keepalived/run
    6. *** link /container/service/keepalived/finish.sh to /container/run/process/keepalived/finish
    7. *** Set environment for startup files
    8. *** Environment files will be proccessed in this order : 
    9. Caution: previously defined variables will not be overriden.
    10. /container/environment/99-default/default.yaml
    11.  
    12. To see how this files are processed and environment variables values,
    13. run this container with '--loglevel debug'
    14. /container/tool/run:294: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
    15.   env_vars = yaml.load(f)
    16. *** Running /container/run/startup/keepalived...
    17. *** Set environment for container process
    18. *** Environment files will be proccessed in this order : 
    19. Caution: previously defined variables will not be overriden.
    20. /container/environment/99-default/default.yaml
    21.  
    22. To see how this files are processed and environment variables values,
    23. run this container with '--loglevel debug'
    24. *** Running /container/run/process/keepalived/run...
    25. Waiting config file /usr/local/etc/keepalived/keepalived.confok
    26. Tue Aug  2 05:49:08 2022: Starting Keepalived v2.0.20 (01/22,2020)
    27. Keepalived[55]: Starting Keepalived v2.0.20 (01/22,2020)
    28. Tue Aug  2 05:49:08 2022: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    29. Keepalived[55]: Running on Linux 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 (built for Linux 4.19.36)
    30. Tue Aug  2 05:49:08 2022: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    31. Keepalived[55]: Command line: '/usr/local/sbin/keepalived' '-f' '/usr/local/etc/keepalived/keepalived.conf'
    32. Tue Aug  2 05:49:08 2022:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    33. Keepalived[55]:               '--dont-fork' '--log-console' '--log-detail' '--dump-conf'
    34. Tue Aug  2 05:49:08 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    35. Keepalived[55]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    36. Tue Aug  2 05:49:08 2022: Starting VRRP child process, pid=57
    37. Tue Aug  2 05:49:08 2022: Registering Kernel netlink reflector
    38. Keepalived_vrrp[57]: Registering Kernel netlink reflector
    39. Tue Aug  2 05:49:08 2022: Registering Kernel netlink command channel
    40. Keepalived[55]: Starting VRRP child process, pid=57
    41. Keepalived_vrrp[57]: Registering Kernel netlink command channel
    42. Tue Aug  2 05:49:08 2022: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    43. Keepalived_vrrp[57]: Opening file '/usr/local/etc/keepalived/keepalived.conf'.
    44. Tue Aug  2 05:49:08 2022: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    45. Keepalived_vrrp[57]: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
    46. Tue Aug  2 05:49:08 2022: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    47. Keepalived_vrrp[57]: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
    48. Tue Aug  2 05:49:08 2022: Assigned address 172.18.0.23 for interface eth0
    49. Keepalived_vrrp[57]: Assigned address 172.18.0.23 for interface eth0
    50. Tue Aug  2 05:49:08 2022: Registering gratuitous ARP shared channel
    51. Keepalived_vrrp[57]: Registering gratuitous ARP shared channel
    52. Tue Aug  2 05:49:08 2022: (VI_1) removing VIPs.
    53. Keepalived_vrrp[57]: (VI_1) removing VIPs.
    54. Tue Aug  2 05:49:08 2022: ------< Global definitions >------
    55. Keepalived_vrrp[57]: ------< Global definitions >------
    56. Tue Aug  2 05:49:08 2022:  Network namespace = (default)
    57. Keepalived_vrrp[57]:  Network namespace = (default)
    58. Tue Aug  2 05:49:08 2022:  Router ID = 8f41ec8e1808
    59. Keepalived_vrrp[57]:  Router ID = 8f41ec8e1808
    60. Tue Aug  2 05:49:08 2022:  Default smtp_alert = unset
    61. Keepalived_vrrp[57]:  Default smtp_alert = unset
    62. Tue Aug  2 05:49:08 2022:  Default smtp_alert_vrrp = unset
    63. Keepalived_vrrp[57]:  Default smtp_alert_vrrp = unset
    64. Tue Aug  2 05:49:08 2022:  Default smtp_alert_checker = unset
    65. Keepalived_vrrp[57]:  Default smtp_alert_checker = unset
    66. Tue Aug  2 05:49:08 2022:  Checkers log all failures = false
    67. Keepalived_vrrp[57]:  Checkers log all failures = false
    68. Tue Aug  2 05:49:08 2022:  Dynamic interfaces = false
    69. Keepalived_vrrp[57]:  Dynamic interfaces = false
    70. Tue Aug  2 05:49:08 2022:  Default interface = eth0
    71. Keepalived_vrrp[57]:  Default interface = eth0
    72. Tue Aug  2 05:49:08 2022:  LVS flush = false
    73. Keepalived_vrrp[57]:  LVS flush = false
    74. Tue Aug  2 05:49:08 2022:  LVS flush on stop = disabled
    75. Keepalived_vrrp[57]:  LVS flush on stop = disabled
    76. Tue Aug  2 05:49:08 2022:  VRRP notify priority changes = false
    77. Keepalived_vrrp[57]:  VRRP notify priority changes = false
    78. Tue Aug  2 05:49:08 2022:  VRRP IPv4 mcast group = 224.0.0.18
    79. Keepalived_vrrp[57]:  VRRP IPv4 mcast group = 224.0.0.18
    80. Tue Aug  2 05:49:08 2022:  VRRP IPv6 mcast group = ff02::12
    81. Keepalived_vrrp[57]:  VRRP IPv6 mcast group = ff02::12
    82. Tue Aug  2 05:49:08 2022:  Gratuitous ARP delay = 5
    83. Keepalived_vrrp[57]:  Gratuitous ARP delay = 5
    84. Tue Aug  2 05:49:08 2022:  Gratuitous ARP repeat = 5
    85. Keepalived_vrrp[57]:  Gratuitous ARP repeat = 5
    86. Tue Aug  2 05:49:08 2022:  Gratuitous ARP refresh timer = 0
    87. Keepalived_vrrp[57]:  Gratuitous ARP refresh timer = 0
    88. Tue Aug  2 05:49:08 2022:  Gratuitous ARP refresh repeat = 1
    89. Keepalived_vrrp[57]:  Gratuitous ARP refresh repeat = 1
    90. Tue Aug  2 05:49:08 2022:  Gratuitous ARP lower priority delay = 5
    91. Keepalived_vrrp[57]:  Gratuitous ARP lower priority delay = 5
    92. Tue Aug  2 05:49:08 2022:  Gratuitous ARP lower priority repeat = 5
    93. Keepalived_vrrp[57]:  Gratuitous ARP lower priority repeat = 5
    94. Tue Aug  2 05:49:08 2022:  Send advert after receive lower priority advert = true
    95. Keepalived_vrrp[57]:  Send advert after receive lower priority advert = true
    96. Tue Aug  2 05:49:08 2022:  Send advert after receive higher priority advert = false
    97. Keepalived_vrrp[57]:  Send advert after receive higher priority advert = false
    98. Tue Aug  2 05:49:08 2022:  Gratuitous ARP interval = 0.000000
    99. Keepalived_vrrp[57]:  Gratuitous ARP interval = 0.000000
    100. Tue Aug  2 05:49:08 2022:  Gratuitous NA interval = 0.000000
    101. Keepalived_vrrp[57]:  Gratuitous NA interval = 0.000000
    102. Tue Aug  2 05:49:08 2022:  VRRP default protocol version = 2
    103. Keepalived_vrrp[57]:  VRRP default protocol version = 2
    104. Tue Aug  2 05:49:08 2022:  VRRP check unicast_src = false
    105. Keepalived_vrrp[57]:  VRRP check unicast_src = false
    106. Tue Aug  2 05:49:08 2022:  VRRP skip check advert addresses = false
    107. Keepalived_vrrp[57]:  VRRP skip check advert addresses = false
    108. Tue Aug  2 05:49:08 2022:  VRRP strict mode = false
    109. Keepalived_vrrp[57]:  VRRP strict mode = false
    110. Tue Aug  2 05:49:08 2022:  VRRP process priority = 0
    111. Keepalived_vrrp[57]:  VRRP process priority = 0
    112. Tue Aug  2 05:49:08 2022:  VRRP don't swap = false
    113. Keepalived_vrrp[57]:  VRRP don't swap = false
    114. Tue Aug  2 05:49:08 2022:  VRRP realtime priority = 0
    115. Keepalived_vrrp[57]:  VRRP realtime priority = 0
    116. Tue Aug  2 05:49:08 2022:  Checker process priority = 0
    117. Keepalived_vrrp[57]:  Checker process priority = 0
    118. Tue Aug  2 05:49:08 2022:  Checker don't swap = false
    119. Keepalived_vrrp[57]:  Checker don't swap = false
    120. Tue Aug  2 05:49:08 2022:  Checker realtime priority = 0
    121. Keepalived_vrrp[57]:  Checker realtime priority = 0
    122. Tue Aug  2 05:49:08 2022:  Script security disabled
    123. Keepalived_vrrp[57]:  Script security disabled
    124. Tue Aug  2 05:49:08 2022:  Default script uid:gid 0:0
    125. Keepalived_vrrp[57]:  Default script uid:gid 0:0
    126. Tue Aug  2 05:49:08 2022:  vrrp_netlink_cmd_rcv_bufs = 0
    127. Keepalived_vrrp[57]:  vrrp_netlink_cmd_rcv_bufs = 0
    128. Tue Aug  2 05:49:08 2022:  vrrp_netlink_cmd_rcv_bufs_force = 0
    129. Keepalived_vrrp[57]:  vrrp_netlink_cmd_rcv_bufs_force = 0
    130. Tue Aug  2 05:49:08 2022:  vrrp_netlink_monitor_rcv_bufs = 0
    131. Keepalived_vrrp[57]:  vrrp_netlink_monitor_rcv_bufs = 0
    132. Tue Aug  2 05:49:08 2022:  vrrp_netlink_monitor_rcv_bufs_force = 0
    133. Keepalived_vrrp[57]:  vrrp_netlink_monitor_rcv_bufs_force = 0
    134. Tue Aug  2 05:49:08 2022:  process_monitor_rcv_bufs = 0
    135. Keepalived_vrrp[57]:  process_monitor_rcv_bufs = 0
    136. Tue Aug  2 05:49:08 2022:  process_monitor_rcv_bufs_force = 0
    137. Keepalived_vrrp[57]:  process_monitor_rcv_bufs_force = 0
    138. Tue Aug  2 05:49:08 2022:  lvs_netlink_cmd_rcv_bufs = 0
    139. Keepalived_vrrp[57]:  lvs_netlink_cmd_rcv_bufs = 0
    140. Tue Aug  2 05:49:08 2022:  lvs_netlink_cmd_rcv_bufs_force = 0
    141. Keepalived_vrrp[57]:  lvs_netlink_cmd_rcv_bufs_force = 0
    142. Tue Aug  2 05:49:08 2022:  lvs_netlink_monitor_rcv_bufs = 0
    143. Keepalived_vrrp[57]:  lvs_netlink_monitor_rcv_bufs = 0
    144. Tue Aug  2 05:49:08 2022:  lvs_netlink_monitor_rcv_bufs_force = 0
    145. Keepalived_vrrp[57]:  lvs_netlink_monitor_rcv_bufs_force = 0
    146. Tue Aug  2 05:49:08 2022:  rs_init_notifies = 0
    147. Keepalived_vrrp[57]:  rs_init_notifies = 0
    148. Tue Aug  2 05:49:08 2022:  no_checker_emails = 0
    149. Keepalived_vrrp[57]:  no_checker_emails = 0
    150. Tue Aug  2 05:49:08 2022:  rx_bufs_multiples = 3
    151. Keepalived_vrrp[57]:  rx_bufs_multiples = 3
    152. Tue Aug  2 05:49:08 2022:  umask = 0177
    153. Keepalived_vrrp[57]:  umask = 0177
    154. Tue Aug  2 05:49:08 2022: ------< VRRP Topology >------
    155. Keepalived_vrrp[57]: ------< VRRP Topology >------
    156. Tue Aug  2 05:49:08 2022:  VRRP Instance = VI_1
    157. Keepalived_vrrp[57]:  VRRP Instance = VI_1
    158. Tue Aug  2 05:49:08 2022:    VRRP Version = 2
    159. Keepalived_vrrp[57]:    VRRP Version = 2
    160. Tue Aug  2 05:49:08 2022:    Wantstate = BACKUP
    161. Keepalived_vrrp[57]:    Wantstate = BACKUP
    162. Tue Aug  2 05:49:08 2022:    Interface = eth0
    163. Keepalived_vrrp[57]:    Interface = eth0
    164. Tue Aug  2 05:49:08 2022:    Using src_ip = 172.18.0.23
    165. Keepalived_vrrp[57]:    Using src_ip = 172.18.0.23
    166. Tue Aug  2 05:49:08 2022:    Gratuitous ARP delay = 5
    167. Keepalived_vrrp[57]:    Gratuitous ARP delay = 5
    168. Tue Aug  2 05:49:08 2022:    Gratuitous ARP repeat = 5
    169. Keepalived_vrrp[57]:    Gratuitous ARP repeat = 5
    170. Tue Aug  2 05:49:08 2022:    Gratuitous ARP refresh = 0
    171. Keepalived_vrrp[57]:    Gratuitous ARP refresh = 0
    172. Tue Aug  2 05:49:08 2022:    Gratuitous ARP refresh repeat = 1
    173. Keepalived_vrrp[57]:    Gratuitous ARP refresh repeat = 1
    174. Tue Aug  2 05:49:08 2022:    Gratuitous ARP lower priority delay = 5
    175. Keepalived_vrrp[57]:    Gratuitous ARP lower priority delay = 5
    176. Tue Aug  2 05:49:08 2022:    Gratuitous ARP lower priority repeat = 5
    177. Keepalived_vrrp[57]:    Gratuitous ARP lower priority repeat = 5
    178. Tue Aug  2 05:49:08 2022:    Send advert after receive lower priority advert = true
    179. Keepalived_vrrp[57]:    Send advert after receive lower priority advert = true
    180. Tue Aug  2 05:49:08 2022:    Send advert after receive higher priority advert = false
    181. Keepalived_vrrp[57]:    Send advert after receive higher priority advert = false
    182. Tue Aug  2 05:49:08 2022:    Virtual Router ID = 51
    183. Keepalived_vrrp[57]:    Virtual Router ID = 51
    184. Tue Aug  2 05:49:08 2022:    Priority = 150
    185. Keepalived_vrrp[57]:    Priority = 150
    186. Tue Aug  2 05:49:08 2022:    Advert interval = 1 sec
    187. Keepalived_vrrp[57]:    Advert interval = 1 sec
    188. Tue Aug  2 05:49:08 2022:    Accept = enabled
    189. Keepalived_vrrp[57]:    Accept = enabled
    190. Tue Aug  2 05:49:08 2022:    Preempt = disabled
    191. Keepalived_vrrp[57]:    Preempt = disabled
    192. Tue Aug  2 05:49:08 2022:    Promote_secondaries = disabled
    193. Keepalived_vrrp[57]:    Promote_secondaries = disabled
    194. Tue Aug  2 05:49:08 2022:    Authentication type = SIMPLE_PASSWORD
    195. Keepalived_vrrp[57]:    Authentication type = SIMPLE_PASSWORD
    196. Tue Aug  2 05:49:08 2022:    Password = d0cker
    197. Keepalived_vrrp[57]:    Password = d0cker
    198. Tue Aug  2 05:49:08 2022:    Virtual IP = 2
    199. Keepalived_vrrp[57]:    Virtual IP = 2
    200. Tue Aug  2 05:49:08 2022:      172.18.0.3 dev eth0 scope global
    201. Keepalived_vrrp[57]:      172.18.0.3 dev eth0 scope global
    202. Tue Aug  2 05:49:08 2022:      172.18.0.4 dev eth0 scope global
    203. Keepalived_vrrp[57]:      172.18.0.4 dev eth0 scope global
    204. Tue Aug  2 05:49:08 2022:    Unicast Peer = 3
    205. Keepalived_vrrp[57]:    Unicast Peer = 3
    206. Tue Aug  2 05:49:08 2022:      172.18.0.21
    207. Keepalived_vrrp[57]:      172.18.0.21
    208. Tue Aug  2 05:49:08 2022:      172.18.0.22
    209. Keepalived_vrrp[57]:      172.18.0.22
    210. Tue Aug  2 05:49:08 2022:      172.18.0.23
    211. Keepalived_vrrp[57]:      172.18.0.23
    212. Tue Aug  2 05:49:08 2022:    Unicast checksum compatibility = no
    213. Keepalived_vrrp[57]:    Unicast checksum compatibility = no
    214. Tue Aug  2 05:49:08 2022:    No sockets allocated
    215. Keepalived_vrrp[57]:    No sockets allocated
    216. Tue Aug  2 05:49:08 2022:    Using smtp notification = no
    217. Keepalived_vrrp[57]:    Using smtp notification = no
    218. Tue Aug  2 05:49:08 2022:    Generic state transition script = '/container/service/keepalived/assets/notify.sh', uid:gid 0:0
    219. Keepalived_vrrp[57]:    Generic state transition script = '/container/service/keepalived/assets/notify.sh', uid:gid 0:0
    220. Tue Aug  2 05:49:08 2022:    Notify priority changes = false
    221. Keepalived_vrrp[57]:    Notify priority changes = false
    222. Tue Aug  2 05:49:08 2022: ------< Interfaces >------
    223. Keepalived_vrrp[57]: ------< Interfaces >------
    224. Tue Aug  2 05:49:08 2022:  Name = lo
    225. Keepalived_vrrp[57]:  Name = lo
    226. Tue Aug  2 05:49:08 2022:    index = 1
    227. Keepalived_vrrp[57]:    index = 1
    228. Tue Aug  2 05:49:08 2022:    IPv4 address = 127.0.0.1
    229. Keepalived_vrrp[57]:    IPv4 address = 127.0.0.1
    230. Tue Aug  2 05:49:08 2022:    IPv6 address = (none)
    231. Keepalived_vrrp[57]:    IPv6 address = (none)
    232. Tue Aug  2 05:49:08 2022:    State = UP, RUNNING, no broadcast, loopback, no multicast
    233. Keepalived_vrrp[57]:    State = UP, RUNNING, no broadcast, loopback, no multicast
    234. Tue Aug  2 05:49:08 2022:    MTU = 65536
    235. Keepalived_vrrp[57]:    MTU = 65536
    236. Tue Aug  2 05:49:08 2022:    HW Type = LOOPBACK
    237. Keepalived_vrrp[57]:    HW Type = LOOPBACK
    238. Tue Aug  2 05:49:08 2022:    NIC netlink status update
    239. Keepalived_vrrp[57]:    NIC netlink status update
    240. Tue Aug  2 05:49:08 2022:    Reset ARP config counter 0
    241. Keepalived_vrrp[57]:    Reset ARP config counter 0
    242. Tue Aug  2 05:49:08 2022:    Original arp_ignore 0
    243. Keepalived_vrrp[57]:    Original arp_ignore 0
    244. Tue Aug  2 05:49:08 2022:    Original arp_filter 0
    245. Keepalived_vrrp[57]:    Original arp_filter 0
    246. Tue Aug  2 05:49:08 2022:    Original promote_secondaries 0
    247. Keepalived_vrrp[57]:    Original promote_secondaries 0
    248. Tue Aug  2 05:49:08 2022:    Reset promote_secondaries counter 0
    249. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    250. Tue Aug  2 05:49:08 2022:    Tracking VRRP instances = 0
    251. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    252. Tue Aug  2 05:49:08 2022:  Name = tunl0
    253. Keepalived_vrrp[57]:  Name = tunl0
    254. Tue Aug  2 05:49:08 2022:    index = 2
    255. Keepalived_vrrp[57]:    index = 2
    256. Tue Aug  2 05:49:08 2022:    IPv4 address = (none)
    257. Keepalived_vrrp[57]:    IPv4 address = (none)
    258. Tue Aug  2 05:49:08 2022:    IPv6 address = (none)
    259. Keepalived_vrrp[57]:    IPv6 address = (none)
    260. Tue Aug  2 05:49:08 2022:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    261. Keepalived_vrrp[57]:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    262. Tue Aug  2 05:49:08 2022:    MTU = 1480
    263. Keepalived_vrrp[57]:    MTU = 1480
    264. Tue Aug  2 05:49:08 2022:    HW Type = UNKNOWN (768)
    265. Keepalived_vrrp[57]:    HW Type = UNKNOWN (768)
    266. Tue Aug  2 05:49:08 2022:    NIC netlink status update
    267. Keepalived_vrrp[57]:    NIC netlink status update
    268. Tue Aug  2 05:49:08 2022:    Reset ARP config counter 0
    269. Keepalived_vrrp[57]:    Reset ARP config counter 0
    270. Tue Aug  2 05:49:08 2022:    Original arp_ignore 0
    271. Keepalived_vrrp[57]:    Original arp_ignore 0
    272. Tue Aug  2 05:49:08 2022:    Original arp_filter 0
    273. Keepalived_vrrp[57]:    Original arp_filter 0
    274. Tue Aug  2 05:49:08 2022:    Original promote_secondaries 0
    275. Keepalived_vrrp[57]:    Original promote_secondaries 0
    276. Tue Aug  2 05:49:08 2022:    Reset promote_secondaries counter 0
    277. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    278. Tue Aug  2 05:49:08 2022:    Tracking VRRP instances = 0
    279. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    280. Tue Aug  2 05:49:08 2022:  Name = ip6tnl0
    281. Keepalived_vrrp[57]:  Name = ip6tnl0
    282. Tue Aug  2 05:49:08 2022:    index = 3
    283. Keepalived_vrrp[57]:    index = 3
    284. Tue Aug  2 05:49:08 2022:    IPv4 address = (none)
    285. Keepalived_vrrp[57]:    IPv4 address = (none)
    286. Tue Aug  2 05:49:08 2022:    IPv6 address = (none)
    287. Keepalived_vrrp[57]:    IPv6 address = (none)
    288. Tue Aug  2 05:49:08 2022:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    289. Keepalived_vrrp[57]:    State = not UP, not RUNNING, no broadcast, no arp, no multicast
    290. Tue Aug  2 05:49:08 2022:    MTU = 1452
    291. Keepalived_vrrp[57]:    MTU = 1452
    292. Tue Aug  2 05:49:08 2022:    HW Type = UNKNOWN (769)
    293. Keepalived_vrrp[57]:    HW Type = UNKNOWN (769)
    294. Tue Aug  2 05:49:08 2022:    NIC netlink status update
    295. Keepalived_vrrp[57]:    NIC netlink status update
    296. Tue Aug  2 05:49:08 2022:    Reset ARP config counter 0
    297. Keepalived_vrrp[57]:    Reset ARP config counter 0
    298. Tue Aug  2 05:49:08 2022:    Original arp_ignore 0
    299. Keepalived_vrrp[57]:    Original arp_ignore 0
    300. Tue Aug  2 05:49:08 2022:    Original arp_filter 0
    301. Keepalived_vrrp[57]:    Original arp_filter 0
    302. Tue Aug  2 05:49:08 2022:    Original promote_secondaries 0
    303. Keepalived_vrrp[57]:    Original promote_secondaries 0
    304. Tue Aug  2 05:49:08 2022:    Reset promote_secondaries counter 0
    305. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    306. Tue Aug  2 05:49:08 2022:    Tracking VRRP instances = 0
    307. Keepalived_vrrp[57]:    Tracking VRRP instances = 0
    308. Tue Aug  2 05:49:08 2022:  Name = eth0
    309. Keepalived_vrrp[57]:  Name = eth0
    310. Tue Aug  2 05:49:08 2022:    index = 23
    311. Keepalived_vrrp[57]:    index = 23
    312. Tue Aug  2 05:49:08 2022:    IPv4 address = 172.18.0.23
    313. Keepalived_vrrp[57]:    IPv4 address = 172.18.0.23
    314. Tue Aug  2 05:49:08 2022:    IPv6 address = (none)
    315. Keepalived_vrrp[57]:    IPv6 address = (none)
    316. Tue Aug  2 05:49:08 2022:    MAC = 02:42:ac:12:00:17
    317. Keepalived_vrrp[57]:    MAC = 02:42:ac:12:00:17
    318. Tue Aug  2 05:49:08 2022:    MAC broadcast = ff:ff:ff:ff:ff:ff
    319. Keepalived_vrrp[57]:    MAC broadcast = ff:ff:ff:ff:ff:ff
    320. Tue Aug  2 05:49:08 2022:    State = UP, RUNNING
    321. Keepalived_vrrp[57]:    State = UP, RUNNING
    322. Tue Aug  2 05:49:08 2022:    MTU = 1500
    323. Keepalived_vrrp[57]:    MTU = 1500
    324. Tue Aug  2 05:49:08 2022:    HW Type = ETHERNET
    325. Keepalived_vrrp[57]:    HW Type = ETHERNET
    326. Tue Aug  2 05:49:08 2022:    NIC netlink status update
    327. Keepalived_vrrp[57]:    NIC netlink status update
    328. Tue Aug  2 05:49:08 2022:    Reset ARP config counter 0
    329. Keepalived_vrrp[57]:    Reset ARP config counter 0
    330. Tue Aug  2 05:49:08 2022:    Original arp_ignore 0
    331. Keepalived_vrrp[57]:    Original arp_ignore 0
    332. Tue Aug  2 05:49:08 2022:    Original arp_filter 0
    333. Keepalived_vrrp[57]:    Original arp_filter 0
    334. Tue Aug  2 05:49:08 2022:    Original promote_secondaries 0
    335. Keepalived_vrrp[57]:    Original promote_secondaries 0
    336. Tue Aug  2 05:49:08 2022:    Reset promote_secondaries counter 0
    337. Keepalived_vrrp[57]:    Reset promote_secondaries counter 0
    338. Tue Aug  2 05:49:08 2022:    Tracking VRRP instances = 1
    339. Keepalived_vrrp[57]:    Tracking VRRP instances = 1
    340. Tue Aug  2 05:49:08 2022:      VI_1, weight 0
    341. Keepalived_vrrp[57]:      VI_1, weight 0
    342. Tue Aug  2 05:49:08 2022: (VI_1) Entering BACKUP STATE (init)
    343. Keepalived_vrrp[57]: (VI_1) Entering BACKUP STATE (init)
    344. Tue Aug  2 05:49:08 2022: VRRP sockpool: [ifindex(23), family(IPv4), proto(112), unicast(1), fd(11,12)]
    345. Keepalived_vrrp[57]: VRRP sockpool: [ifindex(23), family(IPv4), proto(112), unicast(1), fd(11,12)]
    346.  
    347. # 当前节点为backup节点
    348. Ok, i'm just a backup, great.

                            

                                   

                                        

    openresty keepalived

            

    *************

    创建镜像

             

    下载安装包：https://www.keepalived.org/download.html

    1. huli@hudeMacBook-Pro source % pwd
    2. /Users/huli/lua/openresty/keep/source
    3. huli@hudeMacBook-Pro source % ls
    4. keepalived-2.2.7.tar.gz

              

    镜像包含keepalived

    1. # 创建基础容器
    2. docker run -it -d --net fixed --ip 172.18.0.81 -p 9001:80 --privileged \
    3. -v /Users/huli/lua/openresty/keep/source:/source \
    4. --name open-keepalived lihu12344/openresty init
    5.  
    6. # 进入容器
    7. docker exec -it open-keepalived bash
    8.  
    9. # 依次执行以下命令
    10. yum -y install openssl-devel gcc gcc-c++ libnl libnl-devel libstdc++.i686 initscripts
    11.  
    12. yum -y install rsyslog
    13. systemctl start rsyslog
    14.  
    15. mkdir -p /var/run/openresty/
    16. touch /var/run/openresty/nginx-client-body
    17.  
    18. mkdir -p /tmp/keepalived
    19. cp /source/* /tmp/keepalived
    20. cd /tmp/keepalived
    21. tar -zxvf keepalived-2.2.7.tar.gz
    22.  
    23. mv keepalived-2.2.7 /usr/local/keepalived
    24. cd /usr/local/keepalived
    25.  
    26. ./configure --prefix=/usr/local/keepalived 
    27. make && make install
    28.  
    29. cp etc/sysconfig/keepalived /etc/sysconfig/keepalived
    30. cp sbin/keepalived /usr/sbin/keepalived
    31. cp keepalived/etc/init.d/keepalived /etc/rc.d/init.d/keepalived
    32.  
    33.  
    34. mkdir -p /etc/keepalived
    35.  
    36. * keepalived配置文件
    37. vi /etc/keepalived/keepalived.conf
    38.  
    39. * 添加并开启keepalived服务，设置为开机自启
    40. chkconfig --add keepalived
    41. chkconfig keepalived on
    42.  
    43. systemctl start keepalived
    44.  
    45.  
    46. # 退出容器后，创建镜像文件
    47. docker commit open-keepalived lihu12344/open-keepalived

               

    keepalived配置文件

    1. global_defs {
    2.   default_interface eth0
    3. }
    4.  
    5. vrrp_instance VI_1 {
    6.   interface eth0
    7.  
    8.   state BACKUP
    9.   virtual_router_id 50
    10.   priority 150
    11.   nopreempt
    12.  
    13.   unicast_peer {
    14.     172.18.0.81
    15.     172.18.0.82
    16.   }
    17.  
    18.   virtual_ipaddress {
    19.     172.18.0.83
    20.   }
    21.  
    22.   authentication {
    23.     auth_type PASS
    24.     auth_pass d0cker
    25.   }
    26.  
    27.   notify "/container/service/keepalived/assets/notify.sh"
    28. }

             

    *************

    主备服务器

           

    default.conf

    1. server {
    2.     listen       80;
    3.     server_name  localhost;
    4.  
    5.     location / {
    6.         root   /usr/local/openresty/nginx/html;
    7.         index  index.html index.htm;
    8.     }
    9.  
    10.     location /test {
    11.         echo "172.18.0.81";
    12.     }
    13.  
    14.     error_page   500 502 503 504  /50x.html;
    15.     location = /50x.html {
    16.         root   /usr/local/openresty/nginx/html;
    17.     }
    18.  
    19. }

              

    default2.conf

    1. server {
    2.     listen       80;
    3.     server_name  localhost;
    4.  
    5.     location / {
    6.         root   /usr/local/openresty/nginx/html;
    7.         index  index.html index.htm;
    8.     }
    9.  
    10.     location /test {
    11.         echo "172.18.0.82";
    12.     }
    13.  
    14.     error_page   500 502 503 504  /50x.html;
    15.     location = /50x.html {
    16.         root   /usr/local/openresty/nginx/html;
    17.     }
    18.  
    19. }

               

    创建openresty主备容器

    1. docker run -it -d --net fixed --ip 172.18.0.81 -p 6001:80 --privileged \
    2. -v /Users/huli/lua/openresty/keep/default.conf:/etc/nginx/conf.d/default.conf \
    3. --name open-keepalived lihu12344/open-keepalived init
    4.  
    5. docker run -it -d --net fixed --ip 172.18.0.82 -p 6002:80 --privileged \
    6. -v /Users/huli/lua/openresty/keep/default2.conf:/etc/nginx/conf.d/default.conf \
    7. --name open-keepalived2 lihu12344/open-keepalived init
    8.  
    9.  
    10. # 进入容器，开启openresty服务
    11. mkdir -p /var/run/openresty
    12. touch /var/run/openresty/nginx-client-body
    13. ./usr/bin/openresty

            

    open-keepalived、open-keepalived2均正常工作

    1. # keepalived
    2. [root@1a6fc3b15c7a /]# curl localhost:80/test
    3. 127.0.0.1 - - [03/Aug/2022:01:36:03 +0000] "GET /test HTTP/1.1" 200 22 "-" "curl/7.29.0"
    4. 172.18.0.81
    5. [root@1a6fc3b15c7a /]# curl 172.18.0.83:80/test
    6. 172.18.0.83 - - [03/Aug/2022:01:36:12 +0000] "GET /test HTTP/1.1" 200 22 "-" "curl/7.29.0"
    7. 172.18.0.81
    8.  
    9.  
    10. # keepalived2
    11. [root@75bb0cc675f5 /]# curl localhost:80/test
    12. 127.0.0.1 - - [03/Aug/2022:01:37:12 +0000] "GET /test HTTP/1.1" 200 22 "-" "curl/7.29.0"
    13. 172.18.0.82
    14. [root@75bb0cc675f5 /]# curl 172.18.0.83:80/test
    15. 172.18.0.81

             

    open-keepalived关闭、open-kepalived2正常工作

    1. # open-keepalived2
    2. [root@75bb0cc675f5 /]# curl localhost:80/test
    3. 127.0.0.1 - - [03/Aug/2022:02:13:20 +0000] "GET /test HTTP/1.1" 200 22 "-" "curl/7.29.0"
    4. 172.18.0.82
    5. [root@75bb0cc675f5 /]# curl 172.18.0.83:80/test
    6. 172.18.0.83 - - [03/Aug/2022:02:13:24 +0000] "GET /test HTTP/1.1" 200 22 "-" "curl/7.29.0"
    7. 172.18.0.82

    open-keepalived2切换为master服务器，使用虚拟ip调用，输出open-keepalived2接口

               

                             

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  • 原文地址：https://blog.csdn.net/weixin_43931625/article/details/126088062