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Recent Posts

Python IDE on the iPad Pro

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My career is kind of colourful. I was working on aircraft systems, VoIP HW & SW, developing Linux kernel drivers, Linux distributions, OpenOffice.org and many other low level (RTOS) & high level (desktop applications) stuff. Linux nerd. I said enough one day. I wanted to just work and wasnโ€™t willing to continue wasting my time with searching how to workaround this and that. Bye bye Linux, did spend nice 10 years with you. Read More...

AWS journey โ€” API Gateway & Lambda & VPC performance

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We decided to hide some EC2 instances in private subnets (VPC). Theyโ€™re accessible via bastion hosts or via API (API Gateway & Lambda). Works well, but thereโ€™s one weird issueโ€Šโ€”โ€Šcold lambda start time is over 10s sometimes. We experienced even 15s. This is not acceptable and Iโ€™m seeking for answers to my questions. Does increased memory size help? Is this huge cold start time VPC related? Is there a difference when we do use another language? Read More...

AWS journey โ€” EC2 Container Service

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We were using (and weโ€™re still it using for some services) Docker Cloud. Main problem with DC is that they canโ€™t handle private subnets. EC2 instance must be in the public subnet and thatโ€™s not what we want. Hooray (irony), we have to switch to the EC2 Container Service. Try to explain this to our business department. Additional time for infrastructure. Can handle it, but itโ€™s tough sometimes. Docker images repository Cloud Formation Template This step is optional, but weโ€™re trying to leverage as many as possible AWS services. Read More...


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api-gateway (2) aws (4) cloud-formation (1) dell (1) ec2 (1) ipad (1) lambda (2) macbookpro (1) macos (1) performance (1) prototyping (1) python (1) pythonista (1) u2720q (1)