varnish署理缓存配置

yum install varnish，开机自启动，将nginx配置文件改为监听127.0.0.1:8080

配置varnish

varnish.params如下（端口改为80）

# Varnish environment configuration description. This was derived from
# the old style sysconfig/defaults settings

# Set this to 1 to make systemd reload try to switch vcl without restart.
RELOAD_VCL=1

# Main configuration file. You probably want to change it.
VARNISH_VCL_CONF=/etc/varnish/default.vcl

# Default address and port to bind to. Blank address means all IPv4
# and IPv6 interfaces, otherwise specify a host name, an IPv4 dotted
# quad, or an IPv6 address in brackets.
# VARNISH_LISTEN_ADDRESS=192.168.1.5
VARNISH_LISTEN_PORT=80

# Admin interface listen address and port
VARNISH_ADMIN_LISTEN_ADDRESS=127.0.0.1
VARNISH_ADMIN_LISTEN_PORT=6082

# Shared secret file for admin interface
VARNISH_SECRET_FILE=/etc/varnish/secret

# Backend storage specification, see Storage Types in the varnishd(5)
# man page for details.
VARNISH_STORAGE="file,/var/lib/varnish/varnish_storage.bin,1G"

# Default TTL used when the backend does not specify one
VARNISH_TTL=120

# User and group for the varnishd worker processes
VARNISH_USER=varnish
VARNISH_GROUP=varnish

# Other options, see the man page varnishd(1)
#DAEMON_OPTS="-p thread_pool_min=5 -p thread_pool_max=500 -p thread_pool_timeout=300"

default.vcl如下

vcl 4.0;

import std;

backend default {
    .host = "127.0.0.1";
    .port = "8080";
    .probe = {
        .url = "/hello";
        .timeout   = 2s;
        .interval  = 30s;
        .window    = 5;
        .threshold = 2;
    }
    .first_byte_timeout     = 300s;   # How long to wait before we receive a first byte from our backend?
    .connect_timeout        = 5s;     # How long to wait for a backend connection?
    .between_bytes_timeout  = 2s;     # How long to wait between bytes received from our backend?
}

sub vcl_init {
}

acl purge {
    "127.0.0.1";
    "localhost";
}

sub vcl_recv {
    if (req.url ~ "^/404") {
        return (synth(404, "Not Found"));
    }

    if (req.http.X-Forwarded-For) {
        set req.http.X-Forwarded-For = req.http.X-Forwarded-For + ", " + client.ip;
    } else {
        set req.http.X-Forwarded-For = client.ip;
    }

    if (req.method == "PURGE") {
        if (!client.ip ~ purge) {
            return (synth(405, "This IP is not allowed to send PURGE requests."));
        }

        return (purge);
    }

    if (req.method != "GET" &&
            req.method != "HEAD" &&
            req.method != "PUT" &&
            req.method != "POST" &&
            req.method != "TRACE" &&
            req.method != "OPTIONS" &&
            req.method != "PATCH" &&
            req.method != "DELETE") {
        return (pipe);
    }

    if (req.method != "GET" && req.method != "HEAD") {
        return (pass);
    }

    if (req.url ~ "^[^?]*\.(bmp|bz2|css|doc|eot|flv|gif|gz|ico|jpeg|jpg|js|less|pdf|png|rtf|swf|txt|woff|xml)(\?.*)?$") {
        unset req.http.Cookie;
        return (hash);
    }

    if (req.http.Authorization) {
        return (pass);
    }

    return (hash);
}

sub vcl_pipe {
    return (pipe);
}

sub vcl_pass {
#    return (pass);
}

sub vcl_hash {
    hash_data(req.url);

    if (req.http.host) {
        hash_data(req.http.host);
    } else {
        hash_data(server.ip);
    }

    if (req.http.Cookie) {
        hash_data(req.http.Cookie);
    }
}

sub vcl_hit {
    return (deliver);
}

sub vcl_miss {
    return (fetch);
}

sub vcl_backend_response {
    if (bereq.url ~ "^[^?]*\.(bmp|bz2|doc|eot|flv|gif|gz|ico|jpeg|jpg|less|mp[34]|pdf|png|rar|rtf|swf|tar|tgz|txt|wav|woff|xml|zip)(\?.*)?$") {
        unset beresp.http.set-cookie;
        set beresp.ttl = 1h;
    }

    if (bereq.url ~ "^[^?]*\.(css|js|html)(\?.*)?$") {
        set beresp.ttl = 10m;
    }

    if (beresp.ttl <= 0s || beresp.http.Set-Cookie || beresp.http.Vary == "*") {
        set beresp.ttl = 120s;
        set beresp.uncacheable = true;
        return (deliver);
    }

    set beresp.grace = 1h;

    return (deliver);
}

sub vcl_deliver {
    if (obj.hits > 0) {
        set resp.http.X-Cache = "Cached";
    } else {
        set resp.http.x-Cache = "UnCached";
    }

    # Remove some headers: PHP version
    unset resp.http.X-Powered-By;

    # Remove some headers: Apache version & OS
    unset resp.http.Server;
    unset resp.http.X-Drupal-Cache;
    unset resp.http.X-Varnish;
    unset resp.http.Via;
    unset resp.http.Link;

    return (deliver);
}

 varnishstat查看缓存命中等。