Tag Archives: balancer

AWS 推出將 Classic Load Balancer 轉換成 Application Load Balancer 或 Network Load Balancer 的功能

AWS 應該是希望大家趕快把能換的 ELB 都換成新的 ALB 與 NLB,所以推出這個功能:「New One-step Migration Wizard to Migrate a Classic Load Balancer」。 Today, AWS announced the ability to migrate from a Classic Load Balancer to an Application Load Balancer or a Network Load Balancer in one … Continue reading

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AWS NLB 也可以指定 IP address 當後端了

月初的時候 AWS ALB 支援 IP address 當後端 (AWS ALB 可以設定 IP address 當作後端伺服器了),然後推出 AWS NLB (AWS 推出新的 Load Balancer:NLB (Network Load Balancer)),然後這個功能也被做到 NLB 上了:「Elastic Load Balancing: Network Load Balancer now supports load balancing to IP addresses as targets for AWS … Continue reading

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AWS 推出新的 Load Balancer:NLB (Network Load Balancer)

從一開始推出的 ELB (Elastic Load Balancer),到 ALB (Application),現在則推出了 NLB (Network):「New Network Load Balancer – Effortless Scaling to Millions of Requests per Second」。 有這些特性: Static IP Addresses Zonality Source Address Preservation Long-running Connections Failover 雖然不能確定 AWS 用的技術是什麼,但這裡面有好幾個很明顯就是 DSR (Direct Server Return) 架構的特性 … Continue reading

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在 AWS 的 NGINX Plus

主要是看到「Quick Start Update: Deploy NGINX Plus on the AWS Cloud」這篇才知道在 AWS Marketplace 上有「NGINX Plus - Amazon Linux AMI (HVM)」可以用,而且有三十天試用期可以使用: 30 Day Free Trial Available - NGINX Plus is a high performance load balancer, edge cache and origin server for web … Continue reading

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AWS ALB 可以設定 IP address 當作後端伺服器了

AWS ALB 推出直接設定 IP address 當作後端伺服器的功能:「New – Application Load Balancing via IP Address to AWS & On-Premises Resources」。 ip – Targets are registered as IP addresses. You can use any IPv4 address from the load balancer’s VPC CIDR for targets … Continue reading

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nginx 的 mirror 功能

在 nginx 1.13.4 出的新功能,ngx_http_mirror_module: The ngx_http_mirror_module module (1.13.4) implements mirroring of an original request by creating background mirror subrequests. Responses to mirror subrequests are ignored. 範例其實就講的還蠻清楚的: location / { mirror /mirror; proxy_pass http://backend; } location /mirror { internal; proxy_pass http://test_backend$request_uri; … Continue reading

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CodeDeploy 跟 ELB/ALB 整合了...

看到 CodeDeploy 跟 ELB/ALB 整合的消息:「AWS CodeDeploy now integrates with Elastic Load Balancer」。 不過看同事在「AWS 替 CodeDeploy 加入 Load balancer 的功能」這邊提到的效能問題,看起來頗慘... 至少是個整合後的方法... 也許之後會改善吧。

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在 F5 設備上使用 Let's Encrypt 憑證

找資料的時候翻到 F5 官方有給一篇導引,介紹如何自動化 Let's Encrypt 的憑證:「Lightboard Lessons: Automating SSL on BIG-IP with Let's Encrypt!」。 在 F5 的 GitHub 上也有一包「f5devcentral/lets-encrypt-python」可以看看。 還沒仔細看 & 測試,但大概有些輪廓了。看起來要考慮到裡面用的 letsencrypt.sh 已經改名成 dehydrated,另外就是實際測試了... 其實憑證貴的不是費用,是跑採購流程的成本... 單 domain 的如果可以用 Let's Encrypt 解決的話會可以省下不少功夫。

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ALB (Application Load Balancer) 支援對 Host 的分流了

大概是有時候 cluster 太小,ELB 或是 ALB 的費用反而比 cluster 還貴,再加上 ALB 提供起來算方便,所以就推出這樣的功能了:「New – Host-Based Routing Support for AWS Application Load Balancers」。 現在可以針對 Host 欄位決定導到不同的 cluster 上了: 然後讓 ALB 可以設的 rule 數量增加: As part of today’s launch we are raising the maximum number … Continue reading

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Linode 推出 $5/month 方案,DigitalOcean 推出 load balancer

Linode 與 DigitalOcean 這兩家有名的 VPS 都推出新的功能:「High-Memory Instances and $5 Linodes」、「Load Balancers: Simplifying High Availability」。 Linode 另外將 $10/month 方案的硬碟空間加大: And finally, the existing Linode 2GB ($10/mo) plan is receiving a free storage upgrade from 24GiB to 30GiB. 本來對外的速度限制在 125Mbps max 拉到 … Continue reading

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