{"id":1751,"date":"2023-06-19T17:51:38","date_gmt":"2023-06-19T09:51:38","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1751"},"modified":"2023-06-19T17:51:59","modified_gmt":"2023-06-19T09:51:59","slug":"keepalive-nginx-%e5%ae%9e%e7%8e%b0%e9%ab%98%e5%8f%af%e7%94%a8","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/nginx\/keepalive-nginx-%e5%ae%9e%e7%8e%b0%e9%ab%98%e5%8f%af%e7%94%a8\/","title":{"rendered":"keepalive + nginx \u5b9e\u73b0\u9ad8\u53ef\u7528"},"content":{"rendered":"
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\u672c\u7bc7\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b keepalive + nginx \u6765\u5b9e\u73b0 \u5bf9\u4e8enginx\u7684\u9ad8\u53ef\u7528, \u8fd8\u662f\u7b80\u5355\u7684\u4e3b\u5907\u6a21\u5f0f<\/span><\/p>\n<\/blockquote>\n

1.\u6982\u8ff0<\/span><\/h3>\n

\u524d\u9762\u6709\u4e86\u89e3keepalive \u7684\u4e3b\u5907\u7684\u57fa\u672c\u4f7f\u7528, \u4f46\u662f\u90a3\u79cd\u662f\u9488\u5bf9\u5b95\u673a\u7b49\u60c5\u51b5 \u505c\u6b62\u4e86keepalive \u7684\u8fdb\u7a0b\u5b9e\u73b0\u7684 vip\u7684\u6f02\u79fb,\u672c\u7bc7\u628akeepalive \u6dfb\u52a0\u6821\u9a8cnginx\u5b58\u6d3b\u811a\u672c \u5b9e\u73b0\u9488\u5bf9nginx\u7684\u76d1\u63a7, \u5b9e\u73b0nginx\u7684\u9ad8\u53ef\u7528<\/span><\/p>\n

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2.\u51c6\u5907\u5de5\u4f5c<\/span><\/h3>\n

\u51c6\u59072\u53f0\u673a\u5668 , \u628a111\u5b9a\u4e49\u4e3a keepalive \u7684 MASTER \u8282\u70b9<\/span><\/p>\n

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ip<\/span><\/span><\/th>\nkeepalived<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
172.16.225.111<\/span><\/span><\/td>\nMASTER<\/span><\/span><\/td>\n<\/tr>\n
172.16.225.110<\/span><\/span><\/td>\nBACKUP<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u5206\u522b\u57282\u53f0\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u597dnginx \u5e76\u4e14\u4fee\u6539\u9ed8\u8ba4\u7684 index.html  \u6dfb\u52a0\u4e0a ip \u6807\u8bc6\u65b9\u4fbf\u533a\u5206. \u5982\u4e0b:<\/span><\/p>\n

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3.\u914d\u7f6e keepalived<\/span><\/h3>\n

\u5728keepalived \u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 instance \u91cc\u9762\u914d\u7f6e track_script \u6307\u5b9a \u68c0\u67e5nginx\u662f\u5426\u5b58\u6d3b\u7684\u811a\u672c<\/span><\/p>\n

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3.1 master (172.16.225.111)<\/span><\/h4>\n
! Configuration<\/span> File for<\/span> keepalived<\/span><\/span>\n<\/span>\nglobal_defs <\/span>{<\/span>\n   router_id LB111<\/span><\/span>\n}<\/span>\n<\/span>\nvrrp_script chk_nginx<\/span> {<\/span>\n   # \u5177\u4f53\u7684\u811a\u672c<\/span><\/span>\n   script <\/span>\"\/etc\/keepalived\/nginx_check.sh\"<\/span><\/span>\n   interval 2<\/span> # 2s\u6267\u884c\u4e00\u6b21 <\/span><\/span>\n   weight -20<\/span> # \u5931\u8d25\u4e00\u6b21 \u5219\u4f18\u5148\u7ea7 -20<\/span><\/span>\n}<\/span>\n<\/span>\nvrrp_instance VI_1<\/span> {<\/span>\n    state MASTER<\/span><\/span>\n    interface ens160<\/span><\/span>\n    virtual_router_id 51<\/span><\/span>\n    priority 100<\/span><\/span>\n    advert_int 1<\/span><\/span>\n    authentication <\/span>{<\/span>\n        auth_type PASS<\/span><\/span>\n        auth_pass 1111<\/span><\/span>\n    }<\/span>\n    virtual_ipaddress <\/span>{<\/span>\n        172.16.225.200<\/span><\/span>\n    }<\/span>\n    # \u6307\u5b9a\u811a\u672c<\/span><\/span>\n    track_script <\/span>{<\/span>\n      chk_nginx<\/span><\/span>\n    }<\/span>\n}<\/span><\/pre>\n
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3.2 master (172.16.225.110)<\/span><\/h4>\n
! Configuration<\/span> File for<\/span> keepalived<\/span><\/span>\n<\/span>\nglobal_defs <\/span>{<\/span>\n   router_id LB111<\/span><\/span>\n}<\/span>\n<\/span>\nvrrp_script chk_nginx<\/span> {<\/span>\n   script <\/span>\"\/etc\/keepalived\/nginx_check.sh\"<\/span><\/span>\n   interval 2<\/span><\/span>\n   weight -20<\/span><\/span>\n}<\/span>\n<\/span>\nvrrp_instance VI_1<\/span> {<\/span>\n    state BACKUP<\/span><\/span>\n    interface ens160<\/span><\/span>\n    virtual_router_id 51<\/span><\/span>\n    priority 90<\/span><\/span>\n    advert_int 1<\/span><\/span>\n    authentication <\/span>{<\/span>\n        auth_type PASS<\/span><\/span>\n        auth_pass 1111<\/span><\/span>\n    }<\/span>\n    virtual_ipaddress <\/span>{<\/span>\n       172.16.225.200<\/span><\/span>\n    }<\/span>\n<\/span>\n    track_scrip <\/span>{<\/span>\n      chk_nginx<\/span><\/span>\n    }<\/span>\n}<\/span><\/pre>\n
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4.\u914d\u7f6e nginx_check.sh<\/span><\/h3>\n
\u4e3b\u8981\u662f\u8fd9\u4e2a\u811a\u672c \u8fd9\u4e2a\u811a\u672c\u7684\u5185\u5bb9\u5c31\u662f <\/span>\u901a\u8fc7ps\u547d\u4ee4\u68c0\u67e5 nginx\u8fdb\u7a0b\u662f\u5426\u5b58\u6d3b<\/code><\/span> ,\u5982\u679c\u4e0d\u5b58\u6d3b \u5219\u5c1d\u8bd5\u542f\u52a8\u4e00\u6b21 \u5219\u68c0\u67e5 ,<\/span>\u5982\u679c\u8fd8\u662f\u542f\u52a8\u4e0d\u8d77\u6765 \u5219 \u628akeepalived \u5173\u95ed<\/code><\/span>, \u4ece\u800c\u8ba9 keepalived \u80fd\u68c0\u6d4b\u5230 \u5e76\u4e14 vip \u80fd\u591f\u6f02\u79fb\u5230\u5176\u4ed6\u673a\u5668<\/span><\/p>\n
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#!\/bin\/bash<\/span><\/span>\nstatus<\/span>=<\/span>$(ps -C nginx --no-heading|wc -l)<\/span><\/span>\nif<\/span> [ \"<\/span>${status}<\/span>\"<\/span> =<\/span> \"0\"<\/span> ]; then<\/span><\/span>\n            # \u5c1d\u8bd5\u542f\u52a8\u4e00\u6b21<\/span><\/span>\n            systemctl start<\/span> nginx<\/span>\n        # \u518d\u6b21\u68c0\u67e5ngixn \u8fdb\u7a0b<\/span><\/span>\n        status2<\/span>=<\/span>$(ps -C nginx --no-heading|wc -l)<\/span><\/span>\n        if<\/span> [ \"<\/span>${status2}<\/span>\"<\/span> =<\/span> \"0\"<\/span>  ]; then<\/span><\/span>\n                # \u5173\u95ed keepalived <\/span><\/span>\n                systemctl stop<\/span> keepalived<\/span>\n        fi<\/span><\/span>\nfi<\/span><\/span><\/pre>\n
\u9700\u8981\u57282\u53f0\u673a\u5668\u4e0a\u90fd\u914d\u7f6e\u4e0a\u8fd9\u4e2a\u811a\u672c<\/span><\/strong><\/span><\/p>\n
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# \u7ed9\u811a\u672c\u4e00\u4e2a \u53ef\u6267\u884c\u7684\u6743\u9650<\/span><\/span>\nchmode +<\/span>x \/etc\/keepalived\/nginx_check.sh<\/span><\/pre>\n
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# \u91cd\u542f\u6216\u8005\u542f\u52a8 keepalived <\/span><\/span>\nsystemctl restart<\/span> keepalived<\/span><\/pre>\n
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5.\u5173\u95ed selinux<\/span><\/h3>\n
\u5982\u679c\u91cd\u542f\u540e\u6216\u8005\u542f\u52a8\u540e \u67e5\u770b\u65e5\u5fd7\u6709\u5982\u4e0b\u629b\u9519 , \u5219\u662f selinux \u6ca1\u6709\u5173\u95ed<\/span><\/p>\n
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# \u4e34\u65f6\u5173\u95ed<\/span><\/span>\nsetenforce 0<\/span><\/span>\n<\/span>\n#\u6c38\u4e45\u5173\u95ed<\/span><\/span>\nsed<\/span> -i<\/span> 's\/SELINUX=enforcing\/SELINUX=disabled\/'<\/span> \/etc\/selinux\/config<\/span><\/pre>\n
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6.\u6a21\u62df\u6d4b\u8bd5<\/span><\/h3>\n
2\u53f0\u673a\u5668 \u5206\u522b\u542f\u52a8nginx \u548c keepalive \u540e<\/span><\/p>\n
\u8bbf\u95ee vip 172.16.225.200 \u8fd9\u4e2avip \u76ee\u524d\u5728 111 master\u673a\u5668\u4e0a<\/span><\/strong><\/span><\/p>\n
\u5728master\u673a\u5668\u4e0a \u628angixn\u5173\u95ed<\/span><\/p>\n
# \u5173\u95ed nginx <\/span><\/span>\n.\/nginx -s<\/span> stop<\/span><\/span><\/pre>\n
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# \u6b64\u65f6\u67e5\u770b keepalived \u7684\u72b6\u6001\u5c31\u662f dead\u4e86<\/span><\/span>\nsystemctl status keepalived<\/span>\n<\/span>\n\u25cf keepalived.service -<\/span> LVS and VRRP High Availability Monitor<\/span>\n   Loaded: loaded (\/usr\/lib\/systemd\/system\/keepalived.service; disabled; vendor preset: disabled)<\/span>\n   Active: inactive (dead)<\/span><\/pre>\n
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\u518d\u6b21\u8bbf\u95eevip  172.16.225.200 , \u53ef\u4ee5\u770b\u5230 vip \u5df2\u7ecf\u8dd1\u5230\u4e86 backup\u673a\u5668110\u4e0a\u4e86<\/span><\/strong><\/span><\/p>\n
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\u603b\u7ed3<\/span><\/h3>\n
\u672c\u7bc7\u4e3b\u8981\u4ecb\u7ecd\u4e86 keepalive + nginx \u7684\u57fa\u672c\u7684\u4e3b\u5907\u914d\u7f6e \u5b9e\u73b0\u4e86 nginx \u7684\u9ad8\u53ef\u7528,\u6838\u5fc3\u70b9\u5c31\u662f\u914d\u7f6e nginx_check.sh\u811a\u672c\u7ed9keepalive \u7684\u6267\u884c, \u8fd9\u4e2anginx_check.sh \u811a\u672c\u5185\u5982\u679c\u53d1\u73b0nginx \u4e0d\u5b58\u6d3b \u5c1d\u8bd5\u542f\u52a8 \u5982\u679c\u8fd8\u662f\u4e0d\u5b58\u6d3b \u5219\u76f4\u63a5\u5173\u95ed keepalive \u8fdb\u7a0b<\/span><\/p>\n
<\/mp-style-type><\/p>\n
\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 Johnny\u5c4b<\/p><\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
\u672c\u7bc7\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b keepalive + nginx \u6765\u5b9e\u73b0 \u5bf9\u4e8enginx\u7684\u9ad8\u53ef\u7528, \u8fd8\u662f\u7b80\u5355\u7684\u4e3b\u5907\u6a21\u5f0f 1.\u6982\u8ff0 \u524d\u9762\u6709\u4e86\u89e3k …<\/p>\n","protected":false},"author":1,"featured_media":1745,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-1751","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nginx"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705-150x150.jpeg","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044901956.png","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705-300x128.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705-1024x435.jpeg","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044901956.png","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705-300x128.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705-1024x435.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044859705.jpeg","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044901956.png","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044901956.png","id":"image1"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044903417.png","id":"image2"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044903417.png","id":"image3"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044906379.png","id":"image4"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044906379.png","id":"image5"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044910134.png","id":"image6"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044910134.png","id":"image7"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044913674.png","id":"image8"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044913674.png","id":"image9"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"Nginx","post_date":"2023-06-19","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"1","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":304,"next_post_id":1875,"next_post_title":"\u6027\u80fd\u5206\u6790-\u5982\u4f55\u5206\u6790Nginx\u7684\u8fde\u63a5\u5e76\u53d1\u6570","previous_post_id":1880,"previous_post_title":"\u6027\u80fd\u5206\u6790-Nginx\u542f\u52a8gzip","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1751"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1751\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/1745"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}