9 ways to fail at cloud native Holly Cummins IBM @holly_cummins
A presentation at InfoQ Live in August 2021 in by Holly Cummins
9 ways to fail at cloud native Holly Cummins IBM @holly_cummins
my job is helping organisations take advantage of the cloud these are my scary stories @holly_cummins #IBM
fail the muddy goal
what problem are we trying to solve? #IBM @holly_cummins
my CV looks dull… time to add containers to our stack! (this is not a good reason to go cloud native) #IBM @holly_cummins
surely no one would … #IBM @holly_cummins
surely no one would … #IBM @holly_cummins
surely no one would … #IBM @holly_cummins oh.
why is the cloud only saving us money, Alice? #IBM @holly_cummins
why are there no microservices in this cloud native app Bob? #IBM @holly_cummins
fail microservices envy
microservices are not the goal #IBM @holly_cummins
microservices are not the goal they are the means #IBM @holly_cummins
microservices are not the goal they means theyare arethe a means #IBM @holly_cummins
containers are a good base @holly_cummins #IBM
it’s not a competition to see how many you can have containers are a good base @holly_cummins #IBM
“we’re going too slowly. we need to get rid of COBOL and make microservices!” #IBM @holly_cummins
“we’re going too slowly. we need to get rid of COBOL and make microservices!” “… but our release board only meets twice a year.” #IBM @holly_cummins
distributed monolith #IBM @holly_cummins
distributed monolith but without compile-time checking … or guaranteed function execution #IBM @holly_cummins
fail cloudnative spaghetti
“every time we change one microservice, another breaks” #IBM @holly_cummins
distributed != decoupled @holly_cummins #IBM
“each of our microservices has duplicated the same object model … with twenty classes and seventy elds” #IBM fi @holly_cummins
#IBM @holly_cummins
mars climate explorer #IBM @holly_cummins
Courtesy NASA/ JPL-Caltech #IBM @holly_cummins
metric units
metric units imperial units
metric units imperial units distributing did not help
microservices need consumer-driven contract tests @holly_cummins #IBM
fail the ‘someday’ automation
“our tests aren’t automated” @holly_cummins #IBM
“we don’t know if our code works” @holly_cummins #IBM
fail the not-actuallycontinuous continuous integration and continuous deployment
“we have a CI/CD” #IBM @holly_cummins
CI/CD is something you do not a tool you buy #IBM @holly_cummins
“i’ll merge my branch into our CI next week” #IBM @holly_cummins
“CI/CD … CI/CD … CI/CD … we release every six months … CI/CD …. ” #IBM @holly_cummins
continuous. I do not think that word means what you think it means. #IBM @holly_cummins
“we can’t actually release this.” #IBM @holly_cummins
“we can’t release this microservice… we deploy all our microservices at the same time.” #IBM @holly_cummins
deferred wiring #IBM @holly_cummins
feature flags #IBM @holly_cummins
A/B testing canary deploys #IBM @holly_cummins
fail the lockeddown totally rigid inflexible un-cloudy cloud
“this provisioning software is broken” #IBM @holly_cummins
10 minute provision-time what we sold #IBM “this provisioning software is broken” @holly_cummins
what the client thought they’d got 3 month provisiontime 10 minute provision-time what we sold #IBM “this provisioning software is broken” @holly_cummins
what the client thought they’d got the reason 3 month provisiontime 10 minute provision-time 84-step pre-approval process what we sold #IBM “this provisioning software is broken” @holly_cummins
#IBM @holly_cummins
old-style governance isn’t going to work #IBM @holly_cummins
fail the mystery money pit
uh… why are our cloud bills so large? what is all this stuff? @holly_cummins #IBM
FinOps #IBM @holly_cummins
ways to succeed at cloud native @holly_cummins #IBM
@holly_cummins #IBM
cloud native architecture … @holly_cummins #IBM
cloud native architecture … and @holly_cummins #IBM
cloud native architecture … and cloud native operations @holly_cummins #IBM
align business and IT @holly_cummins #IBM
optimise for feedback @holly_cummins #IBM
be clear on what you’re trying to achieve @holly_cummins #IBM
® @holly_cummins
