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AWS ELB & ASG - Coggle Diagram
AWS ELB & ASG
Load Balancer
Type
Classic Load Balancer
CLB will redirect the traffic into EC2 instances
Has static host name
Cross-Zone Load Balancing
Throught console =>
Enabled by default
Throught CLI/API =>
Disabled by default
No charges for inter AZ if enabled
Application Load Balancer
Target Groups
EC2 Instances
ECS Tasks
Lambda functions
IP Addresses
Has static host name
Cross-Zone Load Balancing is
always on
&
can't be disabled
Routing
Host-based routing
Path-based routing
HTTP header-based routing
HTTP method-based routing
Query string parameter-based routing
Source IP address CIDR-based routing
Network Load Balancer
Cross-Zone Load Balancing is
disabled by default
& will be charged for inter-AZ if enabled
Definition
Is a servers that foward internet traffic to multiple servers (EC2 instances) downstream.
Auto Scalling Group
Goals
Scale out to match the increased load
Scale in to match a decreased load
Ensure we have min/max number of machines running
Automatically register new instances to a Load Balancer