{"id":361,"date":"2021-07-28T15:46:41","date_gmt":"2021-07-28T07:46:41","guid":{"rendered":"http:\/\/egonlin.com\/?p=361"},"modified":"2024-07-17T19:53:54","modified_gmt":"2024-07-17T11:53:54","slug":"%e7%ac%ac%e5%85%ad%e8%8a%82%ef%bc%9aansible%e5%8f%98%e9%87%8f%e8%bf%9b%e9%98%b6","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=361","title":{"rendered":"\u7b2c\u516d\u8282\uff1aAnsible Jinja2 \u6a21\u677f"},"content":{"rendered":"<h1>\u4e00\u3001jinja2\u6a21\u677f\u6982\u8ff0<\/h1>\n<pre><code class=\"language-bash\">#jinja2\u662f\u4ec0\u4e48\r\nJinja2 \u662f\u4e00\u4e2a\u7528 Python \u5f00\u53d1\u7684\u9ad8\u6027\u80fd\u6a21\u677f\u5f15\u64ce\uff0c\u90a3\u4e48\u4ec0\u4e48\u662f\u6a21\u677f\uff1f\r\n\r\n\u6240\u8c13\u6a21\u677f\uff0c\u6307\u7684\u662f\u5728\u7eaf\u6587\u672c\u5b57\u7b26\u4e32\u4e2d\u5d4c\u5165\u4e00\u4e9b\u7279\u6b8a\u8bed\u6cd5\u683c\u5f0f\u7684\u8868\u8fbe\u5f0f\uff0c\r\n\u7136\u540e\u4f7f\u7528\u6a21\u677f\u5f15\u64ce\u53bb\u89e3\u6790\u6574\u4e2a\u6a21\u677f\uff0c\u5c06\u5176\u4e2d\u5d4c\u5165\u7684\u7279\u6b8a\u8bed\u6cd5\u90e8\u5206\u89e3\u6790\u66ff\u6362\u6210\u5bf9\u5e94\u7684\u7ed3\u679c\u5b57\u7b26\u4e32\r\n\u5176\u4e2d\uff0c\u89e3\u6790\u5e76\u66ff\u6362\u6a21\u677f\u8868\u8fbe\u5f0f\u7684\u8fc7\u7a0b\u79f0\u4e3a<span style=\"background-color: #ff0000;\">\u6e32\u67d3<\/span>\u3002\r\n\r\n#Jinja2\u4e0eAnsible\u5565\u5173\u7cfb\r\nAnsible\u901a\u5e38\u4f1a\u4f7f\u7528jinja2\u6a21\u677f\u6765\u4fee\u6539\u88ab\u7ba1\u7406\u4e3b\u673a\u7684\u914d\u7f6e\u6587\u4ef6\u7b49\r\n\u5982\u679c\u5728100\u53f0\u4e3b\u673a\u4e0a\u5b89\u88c5redis\uff0c\u6bcf\u53f0redis\u7684\u76d1\u542c\u5730\u5740\u90fd\u4e0d\u4e00\u6837\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\r\n\r\n#Ansible\u5982\u4f55\u4f7f\u7528Jinja2\r\n\u4f7f\u7528Ansible\u7684jinja2\u6a21\u677f\u4e5f\u5c31\u662f\u4f7f\u7528template\u6a21\u5757\uff0c\u8be5\u6a21\u5757\u548ccopy\u6a21\u5757\u4e00\u6837\uff0c\u90fd\u662f\u5c06\u6587\u4ef6\u590d\u5236\u5230\u8fdc\u7aef\u4e3b\u673a\u4e0a\u53bb\uff0c\u4f46\u662f\u533a\u522b\u5728\u4e8e\uff0ctemplate\u6a21\u5757\u53ef\u4ee5\u83b7\u53d6\u5230\u6587\u4ef6\u4e2d\u7684\u53d8\u91cf\uff0c\u800ccopy\u5219\u662f\u539f\u5c01\u4e0d\u52a8\u7684\u628a\u6587\u4ef6\u5185\u5bb9\u590d\u5236\u8fc7\u53bb\u3002\r\n\r\n#Ansible\u4f7f\u7528Jinja2\u6ce8\u610f\u4e8b\u9879\r\nAnsible\u5141\u8bb8jinja2\u6a21\u677f\u4e2d\u4f7f\u7528\u6a21\u7248\u8bed\u6cd5\u7684\u6761\u4ef6\u5224\u65ad\u548c\u5faa\u73af\uff0c\u4f46\u662f\u8fd9\u4e9b\u8bed\u6cd5\u4e0d\u5141\u8bb8\u5728playbook\u4e2d\u4f7f\u7528\u3002\r\n\u6ce8\u610f\uff1a\u4e0d\u662f\u6bcf\u4e2a\u7ba1\u7406\u5458\u90fd\u9700\u8981\u8fd9\u4e2a\u7279\u6027\uff0c\u4f46\u662f\u6709\u4e9b\u65f6\u5019jinja2\u6a21\u5757\u80fd\u5927\u5927\u63d0\u9ad8\u6548\u7387\u3002<\/code><\/pre>\n<h1>\u4e8c\u3001Ansible Jinja2 \u6a21\u677f\u4f7f\u7528<\/h1>\n<p>1\u3001\u53d8\u91cf\u4f7f\u7528\u8bed\u6cd5<\/p>\n<pre><code class=\"language-bash\">{{ EXPR }} \u5f15\u7528\u53d8\u91cf\u503c\uff0c\u6a21\u7248\u6587\u4ef6\u4e0e\u5267\u672c\u6587\u4ef6\u4e2d\u90fd\u53ef\u4ee5\u7528\u8be5\u8bed\u6cd5\u5f15\u7528\u53d8\u91cf<\/code><\/pre>\n<p>2\u3001Jinja2\u6a21\u677f\u903b\u8f91\u5224\u65ad\u8bed\u6cd5<\/p>\n<pre><code class=\"language-bash\">#Jinja2\u6a21\u677f\u5224\u65ad\u8bed\u6cd5\r\n#\u6761\u4ef6\u5224\u65ad\r\n{% if EXPR %}\r\n{% elif EXPR %}\r\n{% else %}\r\n{% endif %}<\/code><\/pre>\n<p>3.Jinja2\u6a21\u677f\u5faa\u73af\u8bed\u6cd5<\/p>\n<pre><code class=\"language-bash\">#Jinja2\u6a21\u677f\u5faa\u73af\u8bed\u6cd5\r\n#\u5faa\u73af\u8868\u8fbe\u5f0f\r\n{% for i in EXPR %}\r\n{% endfor %}<\/code><\/pre>\n<p>4.\u6ce8\u91ca<\/p>\n<pre><code class=\"language-bash\">\r\n#Jinja2\u6a21\u677f\u6ce8\u91ca\u8bed\u6cd5\r\n{# COMMENT #}<\/code><\/pre>\n<h1>\u4e09\u3001jinja2\u6a21\u677f\u4f7f\u7528\u793a\u4f8b<\/h1>\n<h2>\u793a\u4f8b\u4e00<\/h2>\n<p>\u914d\u7f6e\u767b\u9646\u6587\u4ef6\u7684 jinja2 \u6a21\u677f<\/p>\n<pre><code class=\"language-bash\">[root@m01 project]# vim motd.j2\r\nWelcome to {{ ansible_fqdn }}\r\nThis system total mem is : {{ ansible_memtotal_mb }} MB\r\nThis system free mem is: {{ ansible_memfree_mb }} MB<\/code><\/pre>\n<p>\u7f16\u5199\u5267\u672c\uff1a\u7528template\u6a21\u5757\u6e32\u67d3<\/p>\n<pre><code class=\"language-bash\">[root@m01 project]# vim motd.yml\r\n- hosts: group5\r\n  tasks:\r\n    - name: Config motd\r\n      template:\r\n        src: .\/motd.j2\r\n        dest: \/etc\/motd<\/code><\/pre>\n<h2>\u793a\u4f8b\u4e8c<\/h2>\n<p>1\uff09\u914d\u7f6e\u6570\u636e\u5e93\u914d\u7f6e\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\">[root@m01 project]# vim \/etc\/my.cnf\r\ninnodb_buffer_pool_size = {{ ansible_memtotal_mb * 0.8 }}M<\/code><\/pre>\n<p>2\uff09\u7f16\u5199\u5267\u672c<\/p>\n<pre><code class=\"language-bash\">[root@m01 project]# cat my.yml \r\n- hosts: db01\r\n  tasks:\r\n    - name: Config Mariadb\r\n      template:\r\n        src: \/etc\/my.cnf\r\n        dest: \/etc\/<\/code><\/pre>\n<p>3\uff09\u6267\u884c\u5e76\u67e5\u770b<\/p>\n<pre><code class=\"language-bash\">[root@m01 project]# ansible-playbook my.yml \r\n\r\n#\u68c0\u67e5\r\n[root@db01 ~]# vim \/etc\/my.cnf\r\n[mysqld]\r\ninnodb_buffer_pool_size = 777.6M<\/code><\/pre>\n<h2>\u793a\u4f8b\u4e09<\/h2>\n<p>1\uff09\u914d\u7f6e\u6570\u636e\u5e93\u914d\u7f6e\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\">cat &gt; \/workspace\/my.cnf &lt;&lt; \"EOF\"\r\n\r\n[mysqld]\r\n\r\n{% if ansible_memtotal_mb == 972 %}\r\ninnodb_buffer_pool_size = 800M\r\n{% elif ansible_memtotal_mb == 1980 %}\r\ninnodb_buffer_pool_size = 1600M\r\n{% else %}\r\ninnodb_buffer_pool_size = 1000M\r\n{% endif %}\r\n\r\nEOF<\/code><\/pre>\n<p>2\uff09\u7f16\u5199\u5267\u672c<\/p>\n<pre><code class=\"language-bash\">[root@m01 workspace]# cat my.yml \r\n- hosts: group5\r\n  tasks:\r\n    - name: Config Mariadb\r\n      template:\r\n        src: \/workspace\/my.cnf\r\n        dest: \/etc\/<\/code><\/pre>\n<p>3\uff09\u6267\u884c\u67e5\u770b<\/p>\n<pre><code class=\"language-bash\">#\u67e5\u770b\u670d\u52a1\u5668\r\n    1.\u5982\u679c\u670d\u52a1\u5668\u5185\u5b58\u662f 972M\uff0c\u5219\u914d\u7f6e\u4e3a  innodb_buffer_pool_size = 800M\r\n    2.\u5982\u679c\u670d\u52a1\u5668\u5185\u5b58\u662f 1980M\uff0c\u5219\u914d\u7f6e\u4e3a  innodb_buffer_pool_size = 1600M\r\n    3.\u5176\u4ed6\uff0c\u5219\u914d\u7f6e\u4e3ainnodb_buffer_pool_size = 1000M<\/code><\/pre>\n<h2>\u793a\u4f8b\u56db\uff1a\u4f7f\u7528jinja2\u6a21\u677f\u914d\u7f6enginx\u8d1f\u8f7d\u5747\u8861<\/h2>\n<p>0\uff09\u5148\u7ed9\u8d1f\u8f7d\u5747\u8861\u5b89\u88c5nginx<\/p>\n<p>1\uff09\u51c6\u5907\u8d1f\u8f7d\u5747\u8861\u914d\u7f6e\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\">#\u53c2\u8003\uff1a\u6b63\u5e38\u7684\u914d\u7f6e\u6587\u4ef6\r\n[root@m01 workspace]# vim upstream.conf\r\nupstream web {\r\n    server 172.16.1.7;\r\n    server 172.16.1.8;\r\n}\r\n\r\nserver {\r\n    listen 80;\r\n    server_name linux.wp.com;\r\n\r\n    location \/ {\r\n        proxy_pass http:\/\/web;\r\n        proxy_set_header Host $http_host;\r\n    }\r\n}\r\n\r\n#\u7f16\u5199\uff1a\u4e0d\u6b63\u7ecf\u7684\u914d\u7f6e\u6587\u4ef6\r\n[root@m01 workspace]# vim \/workspace\/upstream.j2\r\nupstream {{ server_name }} {\r\n{% for i in range(7,20) %}\r\n    server {{ net_ip }}.{{ i }};\r\n{% endfor %}\r\n}\r\n\r\nserver {\r\n    listen {{ web_port }};\r\n    server_name {{ server_name }};\r\n\r\n    location \/ {\r\n        proxy_pass http:\/\/{{ server_name }};\r\n        proxy_set_header Host $http_host;\r\n    }\r\n}<\/code><\/pre>\n<p>3\uff09\u914d\u7f6e\u53d8\u91cf\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\">cat &gt; \/workspace\/upstream_vars.yml &lt;&lt; \"EOF\"\r\nserver_name: linux.wp.com\r\nweb_port: 80\r\nnet_ip: 172.16.1\r\n\r\nEOF<\/code><\/pre>\n<p>4\uff09\u7f16\u5199\u5267\u672c<\/p>\n<pre><code class=\"language-bash\">[root@lb workspace]# cat lb.yaml \r\n- hosts: group5\r\n  vars_files: \/workspace\/upstream_vars.yml\r\n  tasks:\r\n    - name: Config Nginx Upstream\r\n      template:\r\n        src: \/workspace\/upstream.j2\r\n        dest: \/etc\/nginx\/conf.d\/upstream.conf\r\n      notify: restert_upstream\r\n\r\n    - name: Start Nginx Server\r\n      systemd:\r\n        name: nginx\r\n        state: started\r\n\r\n  handlers:\r\n    - name: restert_upstream\r\n      systemd:\r\n        name: nginx\r\n        state: restarted\r\n<\/code><\/pre>\n<p>4\uff09\u6267\u884c\u5e76\u6d4b\u8bd5<\/p>\n<pre><code class=\"language-bash\">[root@m01 workspace]# ansible-playbook lb.yml<\/code><\/pre>\n<h2>\u793a\u4f8b\u4e94\uff1a\u4f7f\u7528jinja2\u6a21\u677f\u914d\u7f6ekeepalived<\/h2>\n<p>1\uff09\u51c6\u5907keepalived\u914d\u7f6e\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\">#\u53c2\u8003\uff1a\u6b63\u7ecf\u7684\u914d\u7f6e\u6587\u4ef6\r\n[root@m01 project]# vim conf\/keepalived.conf\r\nglobal_defs {\r\n    router_id lb02\r\n}\r\nvrrp_instance VI_1 {\r\n    state BACKUP        \r\n    interface eth0\r\n    virtual_router_id 50\r\n    priority 100\r\n    advert_int 1\r\n    authentication {    \r\n        auth_type PASS\r\n        auth_pass 1111\r\n    }\r\n    virtual_ipaddress {\r\n        10.0.0.3\r\n    }\r\n}\r\n\r\n#\u7f16\u5199\uff1a\u4e0d\u6b63\u7ecf\u7684\u914d\u7f6e\u6587\u4ef6\r\n[root@m01 workspace]# vim \/workspace\/keepalived.j2\r\nglobal_defs {\r\n    router_id {{ ansible_fqdn }}\r\n}\r\nvrrp_instance VI_1 {\r\n{% if ansible_fqdn == \"lb01\" %}\r\n    state MASTER\r\n    priority 100\r\n{% else %}\r\n    state BACKUP\r\n    priority 90\r\n{% endif %}\r\n    interface eth0\r\n    virtual_router_id 50\r\n    advert_int 1\r\n    authentication {  \r\n        auth_type PASS\r\n        auth_pass 1111\r\n    }\r\n    virtual_ipaddress {\r\n        10.0.0.3\r\n    }\r\n}<\/code><\/pre>\n<p>2\uff09\u914d\u7f6e\u5267\u672c<\/p>\n<pre><code class=\"language-bash\">[root@m01 workspace]# cat \/workspace\/keepalived.yml \r\n- hosts: lb_server\r\n  tasks:\r\n    - name: Install keepalived Server\r\n      yum:\r\n        name: keepalived\r\n        state: present\r\n\r\n    - name: Config keepalived Server\r\n      template:\r\n        src: \/workspace\/keepalived.j2\r\n        dest: \/etc\/keepalived\/keepalived.conf\r\n\r\n    - name: Start keepalived Server\r\n      systemd:\r\n        name: keepalived\r\n        state: started<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001jinja2\u6a21\u677f\u6982\u8ff0 #jinja2\u662f\u4ec0\u4e48 Jinja2 \u662f\u4e00\u4e2a\u7528 Python \u5f00\u53d1\u7684\u9ad8\u6027\u80fd\u6a21\u677f\u5f15\u64ce\uff0c\u90a3 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[56],"tags":[60,21,19,22,57,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/361"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=361"}],"version-history":[{"count":13,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":11283,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions\/11283"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}