To make our usage of CloudFormation repeatable, we use Python and Troposphere with our deployment framework and reusable recipes.
Canary mail email alias how to#
This allows you to declare resources and their configurations however you want and lets AWS figure out how to make that happen. On our team the AWS automation tool of choice is AWS CloudFormation. Check it out in the logs! You’ll see the Version in the log stream name, in the square brackets.Pick the canary Version in the second box.Pick the stable Version in the first box.Once you get to the point of understanding how Versions and Aliases work, setting up a canary in the console is pretty self-evident: Make sure that none of your Versions, nor the Unqualified Alias, are configured to receive events. For our use case, we create a single Alias to use for our production canary and only configure to receive events. Both appear under the “Qualifiers” menu.Īn important aspect to understand about Versions and Aliases is that any of them can be configured to receive events, and they all operate independently from each other. As presented in the AWS console, these can be a little confusing. They are based on two abstractions over the Function - Version and Alias. This same process can be applied to Lambda Functions. In order to limit potential impact to your customers, you likely send a portion of your traffic to new code. If you’ve been practicing continuous delivery for your AWS EC2 based services, you’re probably already deploying changes as canaries. We ended up building a re-usable AWS Lambda component to take care of these subscriptions for us that can be deployed using our existing deployment infrastructure.Ī piece of the puzzle was still missing for us was: How were we going to address canary deployments? Here, I’ll share how we solved this. We felt this was a good place for us to start experimenting with Lambdas. We have a long history of using SNS (Simple Notification Service) to deliver events to our various pipelines, but Amazon SNS lacks the ability for a subscription to write a “group id” for FIFOs. Recently, we’ve begun to dip our toes into newer AWS technologies, including Lambda and Amazon SQS FIFO (First-In-First-Out) queues.
Canary mail email alias software#
We adopted continuous delivery years ago and are now comfortable deploying our software in a canary style, which has saved our bacon on several occasions.
Canary mail email alias for mac#
Canary Mail is an exciting new email client for Mac that offers a full set of powerful features with one key difference - your emails are not stored on a 3rd-party server.
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