I see that ECS services can use Application Load Balancers, and the dynamic port stuff works atuomagically. However, an ALB has a maximum of 10 rules other than default rules. Does that mean that I need a separate ALB for every 10 services unless I wish to access via a different port (in which case the default rules would kick in)? This seems obvious, but for something touted to be the solution to load balancing in a microservices environment, this would seem incredibly limiting. Am I missing something?
AWS ECS and Load Balancing
631 views Asked by ashic At
2
There are 2 answers
0
NHol
On
Yes, you are correct, and it is a low restriction. However if you are able to use different CNAMES for your services then having them in an ALB with single target group for each service won't behave differently to having one ALB and multiple target groups each with rules. Dynamic ports are probably the main part of their "microservices solution" argument.
Related Questions in AMAZON-WEB-SERVICES
- Borrow mutable and immutable reference in the same block
- Linking to a static lib compiled with MSVC
- Using a no-method trait implementation in a different module
- No error for two traits implementing the same method
- How are the generic functions and types stored in an rlib?
- Is it possible to find an element in a Vec<T> and remove it?
- What does & actually do?
- unresolved name rand::thread_rng
- Use of undeclared type that is defined in another file
- Creating byte buffers in rust
Related Questions in AMAZON-ECS
- Borrow mutable and immutable reference in the same block
- Linking to a static lib compiled with MSVC
- Using a no-method trait implementation in a different module
- No error for two traits implementing the same method
- How are the generic functions and types stored in an rlib?
- Is it possible to find an element in a Vec<T> and remove it?
- What does & actually do?
- unresolved name rand::thread_rng
- Use of undeclared type that is defined in another file
- Creating byte buffers in rust
Related Questions in ELASTIC-LOAD-BALANCER
- Borrow mutable and immutable reference in the same block
- Linking to a static lib compiled with MSVC
- Using a no-method trait implementation in a different module
- No error for two traits implementing the same method
- How are the generic functions and types stored in an rlib?
- Is it possible to find an element in a Vec<T> and remove it?
- What does & actually do?
- unresolved name rand::thread_rng
- Use of undeclared type that is defined in another file
- Creating byte buffers in rust
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
As far as I know and have experienced, this is indeed true, you are limited to 10 listeners per ALB. Take into account that this setup (ALB + ECS) is fairly new so it is possible that Amazon will adjust the limits as people are requesting this.
Take into account as well that a listener typically has multiple targets, in a microservice architecture this translates to multiple instances of the same service. So you can run 10 different services but you are able to run 10 instances of each service, balancing 100 containers with a single ALB.
Alternatively (to save costs) you could create one listener with multiple rules, but they have to be distinguished by path pattern and have to listen (not route to) the same port. Rules can forward to a target group of your choice. E.g. you can route /service1 to container 1 and /service2 to container 2 within one listener.