{"id":446,"date":"2012-04-17T20:04:31","date_gmt":"2012-04-17T18:04:31","guid":{"rendered":"http:\/\/blog.jeremm.fr\/?p=446"},"modified":"2014-09-24T21:56:56","modified_gmt":"2014-09-24T19:56:56","slug":"script-pour-vider-le-cache-varnish","status":"publish","type":"post","link":"https:\/\/blog.jeremm.fr\/?p=446","title":{"rendered":"Script et conf varnish pour vider le cache varnish"},"content":{"rendered":"<p>&#8211; Vider tout le cache (script PHP) :<\/p>\n<pre lang=\"php\"><?php\r\n        exec('echo \"ban.url \/*\" | nc -q 1 127.0.0.1 6082');\r\n?>\r\n<\/pre>\n<p>&#8211; Vider le cache d&rsquo;un vhost (script BASH) :<\/p>\n<pre lang=\"bash\">#!\/bin\/bash\r\n\r\nif [ ! -z $1 ] ; then\r\n        case \"$1\" in\r\n                -h|--help) echo \"Usage .\/clear_cache.sh HOST\"; echo \"For example HOST : exemple.com\" ; exit 1 ;;\r\n                *) HOST=$1;;\r\n        esac ;\r\nelse\r\n        echo \"Usage .\/clear_cache.sh HOST\"; echo \"For example HOST : exemple.com\" ; exit 1 ;\r\nfi\r\necho \"ban req.http.host ~ \\\"$HOST\\\"\" | nc -q 1 127.0.0.1 6082 &> \/dev\/null\r\necho \"$HOST cleared\"<\/pre>\n<p>&#8211; Vider le cache d&rsquo;une URI (script BASH) :<\/p>\n<pre lang=\"bash\">#!\/bin\/bash\r\nurl=\"\/*\"\r\nif [ ! -z $1 ] ; then\r\n        case \"$1\" in\r\n                -h|--help) echo \"Usage .\/clear_cache.sh URL\"; echo \"For example URL : \/accueil\" ; echo \"URL= \/* if argument missing\"; exit 1 ;;\r\n                *) url=$1;;\r\n        esac ;\r\nfi\r\necho \"ban.url $url\" | nc -q 1 127.0.0.1 6082 &> \/dev\/null\r\necho \"$url cleared\"\r\n<\/pre>\n<p>&#8211; Vider le cache d&rsquo;un host avec une URL (configuration varnish) :<\/p>\n<pre lang=\"cpp\">acl purge {\r\n        \"W.X.Y.Z\";\r\n}\r\nsub vcl_recv {\r\n     if (req.url ~ \"^\/purge-cache$\") {\r\n        if (!client.ip ~ purge) {\r\n                error 405 \"Not allowed.\";\r\n        }\r\n        ban(\"req.http.host == \" + req.http.host + \" && req.url ~ .*\");\r\n        error 200 \"Banned.\";\r\n     }\r\n}<\/pre>\n<p>Pour racha\u00eechir, ouvrir http:\/\/www.exemple.com\/purge-cache<\/p>\n<p>&#8211; Rafraichir un objet avec une requ\u00eate REFRESH (configuration varnish) :<\/p>\n<pre lang=\"cpp\">sub vcl_recv {\r\n     if (req.request == \"REFRESH\") {\r\n        set req.hash_always_miss = true;\r\n        set req.request = \"GET\";\r\n     }\r\n}<\/pre>\n<p>Commande pour racha\u00eechir :<\/p>\n<pre lang=\"bash\">curl -X REFRESH --header 'accept-encoding: gzip' -o \/dev\/null http:\/\/www.exemple.com\/<\/pre>\n<p>&#8211; Purge une url compl\u00e8te quelque soit le host, les cookies,etc (configuration varnish) :<\/p>\n<pre lang=\"cpp\">sub vcl_recv {\r\n     if (req.request == \"PURGE\") {\r\n        ban(\"req.url ~ \" +  req.url);\r\n        error 200\"Purged url \" + req.url ;\r\n     }\r\n}<\/pre>\n<p>Commande pour racha\u00eechir :<\/p>\n<pre lang=\"bash\">curl -I -X PURGE http:\/\/www.exemple.com\/url_a_purge<\/pre>\n<p>&#8211; Rafraichir un site \u00e0 partir d&rsquo;une IP client (configuration varnish) :<\/p>\n<pre lang=\"cpp\">acl purge {\r\n        \"W.X.Y.Z\";\r\n}\r\nsub vcl_recv {\r\n     if (client.ip ~ purge) {\r\n        set req.hash_always_miss = true;\r\n     }\r\n}<\/pre>\n<p>&#8211; Rafraichir un site \u00e0 partir d&rsquo;une IP serveur secondaire (configuration varnish) :<\/p>\n<pre lang=\"cpp\">acl purge {\r\n        \"W.X.Y.Z\";\r\n}\r\nsub vcl_recv {\r\n     if (server.ip ~ purge) {\r\n        set req.hash_always_miss = true;\r\n     }\r\n}<\/pre>\n<p>Modifier votre etc\/hosts pour pointer votre site sur l&rsquo;IP secondaire de rafra\u00eechissement<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8211; Vider tout le cache (script PHP) :<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[35,9],"_links":{"self":[{"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/posts\/446"}],"collection":[{"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=446"}],"version-history":[{"count":50,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/posts\/446\/revisions"}],"predecessor-version":[{"id":917,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=\/wp\/v2\/posts\/446\/revisions\/917"}],"wp:attachment":[{"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jeremm.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}