Canary based Deployment Pattern for Microservices

Question: What is Canary based deployment ?

Question: What is the primary benefit of Canary based deployment ?

Question: What shall be the flow with Canary based deployment ?

Question: What all aspects should we observe with Canary deployments, where new version of the application has been deployed ?

Answer → Following are the aspects that we should be monitoring side by side, at the old-servers and at the new-servers :-

• CPU usage at the canary-server.
• Memory/Heap usage at the canary server.
• Whether there is any abrupt increase in count of exceptions at the canary server ?
• Are there any bugs in the latest code, which has been deployed at canary server ?

Question: Why the name of Canary based deployment is Canary ?

Question: How Canary deployments are implemented ?

Question: How is this selection of 5% is done with Canary deployments ?

Question: What are some advantages of Canary deployments ?

Question: What are some dis-advantages of Canary deployments ?

Question: When we must choose the Canary deployments ?

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