Kapitel 13: Load-Balancer

conf/kapitel/kapitel_13.conf

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+##### Kapitel 13
+
+### Web-Worker Definition
+
+<VirtualHost 172.31.31.111:80>
+	DocumentRoot /usr/local/apache2/htdocs-webworkerX.sv
+	ServerName webworker1.sv
+	DirectoryIndex index.php index.html
+	CustomLog logs/webworker1-access.log combined
+	ErrorLog logs/webworker1-error.log
+</VirtualHost>
+
+<VirtualHost 172.31.31.112:80>
+	DocumentRoot /usr/local/apache2/htdocs-webworkerX.sv
+	ServerName webworker2.sv
+	DirectoryIndex index.php index.html
+	CustomLog logs/webworker2-access.log combined
+	ErrorLog logs/webworker2-error.log
+</VirtualHost>
+
+### Loadbalancer pen
+
+# % pen -f -l /tmp/pen.log 172.31.31.113:8888 172.31.31.111:80 172.31.31.112:80
+
+### Balancer plus Manager
+
+LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
+LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
+LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
+#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
+#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
+#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
+
+# BalancerPersist On
+
+<VirtualHost 172.31.31.105:80>
+	ServerName revproxy-manager.sv
+
+	<Location /balancer-manager>
+		SetHandler balancer-manager
+		Require ip 172.31.31.0/24
+	</Location>
+
+	<Proxy balancer://webworker/>
+		BalancerMember http://172.31.31.111
+		BalancerMember http://172.31.31.112
+	</Proxy>
+		
+	ProxyPass /balancer-manager !
+	ProxyPass / balancer://webworker/
+
+	CustomLog logs/revproxy-manager_access.log combined
+	ErrorLog logs/revproxy-manager_error.log
+</VirtualHost>
+
+### Weiteres: Balancer Sticky
+
+# Testen (mehrfach hintereinander!) mit
+# % curl -i                                http://revproxy-sticky.sv
+# % curl -i --cookie "ROUTEID=.w2; path=/" http://revproxy-sticky.sv
+
+#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
+#LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
+#LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
+#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
+#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
+#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
+
+# BalancerPersist On
+
+<VirtualHost 172.31.31.105:80>
+	ServerName revproxy-sticky.sv
+
+	Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED
+
+	<Location /balancer-manager>
+		SetHandler balancer-manager
+		Require ip 172.31.31.0/24
+	</Location>
+
+	<Proxy balancer://webworker/>
+		BalancerMember http://172.31.31.111 route=w1
+		BalancerMember http://172.31.31.112 route=w2
+
+		ProxySet stickysession=ROUTEID
+	</Proxy>
+		
+	ProxyPass /balancer-manager !
+	ProxyPass / balancer://webworker/
+
+        CustomLog logs/revproxy-sticky_access.log combined
+        ErrorLog logs/revproxy-sticky_error.log
+</VirtualHost>
+
+### Tomcat Loadbalancer mit Sticky-Sessions
+
+<VirtualHost 172.31.31.106:80>
+	ServerName tomcat-lb.sv
+
+	DocumentRoot /usr/share/tomcat9-examples/
+
+	<Proxy balancer://tomcat-ajp>
+		BalancerMember ajp://localhost:8009 route=t0
+		BalancerMember ajp://192.168.1.101:8009 route=t1
+		BalancerMember ajp://192.168.1.102:8009 route=t2 status=+H
+		BalancerMember ajp://192.168.1.103:8009 route=t3 status=+R
+		ProxySet stickysession=JSESSIONID|jsessionid scolonpathdelim=On
+	</Proxy>
+	<Proxy balancer://tomcat-ws>
+		BalancerMember ws://localhost:8080 route=t0
+		BalancerMember ws://192.168.1.101:8080 route=t2
+		BalancerMember ws://192.168.1.102:8080 route=t3 status=+H
+		BalancerMember ws://192.168.1.103:8080 route=t4 status=+R
+		ProxySet stickysession=JSESSIONID|jsessionid scolonpathdelim=On
+	</Proxy>
+
+	RewriteEngine On
+	RewriteRule ^/examples/(.*)\.jsp(x?)$  balancer://tomcat-ajp/examples/$1.jsp$2  [P,L]
+
+	RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
+	RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-d
+	RewriteRule ^/examples/websocket/(.*)$  balancer://tomcat-ws/examples/websocket/$1  [P,L]
+
+	RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
+	RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-d
+	RewriteRule ^/examples/(.*)$  ajp://tomcat-ajp/examples/$1  [P,L]
+
+	<Directory /usr/share/tomcat9-examples/>
+		Require all granted
+		Options Indexes
+	</Directory>
+
+	CustomLog logs/tomcat-lb_access.log combined
+	ErrorLog logs/tomcat-lb_error.log
+</VirtualHost>
+