Why You Can’t Buy Cloud Native

why you can’t buy cloud native Holly Cummins IBM @holly_cummins

#WTFIsCloudNative @holly_cummins #IBM

what are we even trying to buy?

what are we even trying to buy? Kubernetes

what are we even trying to buy? Kubernetes Micro services

what are we even trying to buy? Born on the Cloud Kubernetes Micro services

what are we even trying to buy? DevOps but make it 2021 Born on the Cloud Kubernetes Micro services

what are we even trying to buy? DevOps 12-factor but make it 2021 Born on the Cloud Kubernetes Micro services

what are we even trying to buy? Just Cloud DevOps 12-factor but make it 2021 Born on the Cloud Kubernetes Micro services

what are we even trying to buy? Just Cloud DevOps 12-factor but make it 2021 Modern and Nice Born on the Cloud Kubernetes Micro services

what are we even trying to buy? Just Cloud DevOps 12-factor but make it 2021 Modern and Nice Born on the Cloud Kubernetes Micro services Idempotent

what are we even trying to buy? Just legacy app but on the cloud Cloud DevOps 12-factor but make it 2021 Modern and Nice Born on the Cloud Kubernetes Micro services Idempotent

what do you all think? https://app.sli.do/event/kcvns9iw #684983 #WTFIsCloudNative @holly_cummins #IBM

have you greenfield monolithed lately? https://app.sli.do/event/kcvns9iw #684983 #WTFIsCloudNative @holly_cummins #IBM

microservices will make me look so good #IBM @holly_cummins

surely no one would … #IBM @holly_cummins

surely no one would … #IBM @holly_cummins oh.

cv-driven development #IBM @holly_cummins

there’s a whole landscape to explore @holly_cummins #IBM

it’s not just a landscape it’s a catalog @holly_cummins #IBM

ooh, which it’s not just a landscape ones shall I have? it’s a catalog @holly_cummins #IBM

ooh, which it’s not just a landscape ones shall I have? it’s a catalog they’re all so shiny @holly_cummins #IBM

what problem are we trying to solve? #IBM @holly_cummins

my problem is there aren’t enough containers yet? @holly_cummins #IBM

Warning ! May contain Coupling Cloud native spaghetti Distributed monolith

#IBM @holly_cummins

distributed monolith #IBM @holly_cummins

distributed monolith worst of both worlds: no compile-time checking … or guaranteed function execution #IBM @holly_cummins

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

“the cloud native-ness comes from these network connections”

“the cloud native-ness comes from these network connections” (no, it doesn’t!)

reasons not to do microservices small team not planning to release independently don’t want complexity of a service mesh - or worse yet, rolling your own domain model doesn’t split nicely #WTFIsCloudNative @holly_cummins #IBM

Distributed computing fallacies

Distributed computing fallacies 1. The network is reliable; 2. Latency is zero; 3. Bandwidth is infinite; 4. The network is secure; 5. Topology doesn’t change; 6. There is one administrator; 7. Transport cost is zero; 8. The network is homogeneous.

Distributed computing fallacies 1. The network is reliable; 2. Latency is zero; 3. Bandwidth is infinite; 4. The network is secure; 5. Topology doesn’t change; 6. There is one administrator; 7. Transport cost is zero; 8. The network is homogeneous. 9. Distributed means decoupled!

true story “every time we change one microservice, another breaks” #WTFIsCloudNative @holly_cummins #IBM

distributed != decoupled #WTFIsCloudNative @holly_cummins #IBM

how do you know if you’re decoupled? @holly_cummins #IBM

can you deploy independently? v5.1.4 v5.1.4 v5.1.4 v5.1.4

can you deploy independently? v6.2.8 v65.7 v5.1.4 v1.0.5

“we made our pipeline enforce releasing all our microservices at the same time.” #IBM @holly_cummins true story

can you even deploy at all? #IBM @holly_cummins

do you deploy? https://app.sli.do/event/kcvns9iw #684983 #WTFIsCloudNative @holly_cummins #IBM

can you even release at all? #IBM @holly_cummins

a deploy is not a release deferred wiring #WTFIsCloudNative @holly_cummins #IBM

a deploy is not a release feature flags #WTFIsCloudNative @holly_cummins #IBM

a deploy is not a release A/B testing canary deploys #WTFIsCloudNative @holly_cummins #IBM

“we have a CI/CD” #WTFIsCloudNative @holly_cummins #IBM

by the way, you also can’t buy devops #WTFIsCloudNative @holly_cummins #IBM

and you can’t buy a devop #WTFIsCloudNative @holly_cummins #IBM

CI/CD is something you do not a tool you buy #WTFIsCloudNative @holly_cummins #IBM

“i’ll merge my branch into our CI next week” #WTFIsCloudNative @holly_cummins #IBM

“CI/CD … CI/CD … CI/CD … we release every six months … CI/CD …. ” #WTFIsCloudNative @holly_cummins #IBM

continuous. I do not think that word means what you think it means. #WTFIsCloudNative @holly_cummins #IBM

true story “we’re going too slowly. we need to get rid of COBOL and make microservices!” #IBM @holly_cummins

true story “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

“we can’t actually release a microservice without the release board and all the other microser vices need to be released at the same time and the manual QA cycle and the release checklist and the incantations and the death march and the sacrificing a goat and the spreadsheet and the moon being in the right phase and…” #IBM @holly_cummins

“we can’t ship until we have more con dence in the quality” #IBM fi @holly_cummins

“our tests aren’t automated” @holly_cummins #IBM

“we don’t know if our system works” @holly_cummins #IBM

if you’re going to be spaghetti, at least be tested spaghetti @holly_cummins #IBM

“we can’t release because we don’t seem to be able to actually change things” #IBM @holly_cummins

why change is hard: the enterprise hairball @holly_cummins #IBM

our layer (“business logic”) @holly_cummins #IBM

front-end layer our layer (“business logic”) @holly_cummins #IBM

front-end layer our layer (“business logic”) database layer @holly_cummins #IBM

front-end layer our layer (“business logic”) integration layer (“panicked sandwich”) database layer @holly_cummins #IBM

front-end layer our layer (“business logic”) integration layer (“panicked sandwich”) database layer @holly_cummins oh wait … every change needs a front-end change too #IBM

uh… we can’t release our cool new stuff because we’re dependent on a change in the integration layer front-end layer our layer (“business logic”) integration layer (“panicked sandwich”) database layer @holly_cummins oh wait … every change needs a front-end change too #IBM

uh… we can’t release our cool new stuff because we’re dependent on a change in the integration layer we can’t make progress because we need a change to the database front-end layer our layer (“business logic”) integration layer (“panicked sandwich”) database layer @holly_cummins oh wait … every change needs a front-end change too #IBM

we can’t make progress because we need a change to the database what are that ^&! *(&!! integration team even doing with their time? front-end layer our layer (“business logic”) integration layer (“panicked sandwich”) database layer @holly_cummins oh wait … every change needs a front-end change too #IBM uh… we can’t release our cool new stuff because we’re dependent on a change in the integration layer

a new approach to ops #WTFIsCloudNative @holly_cummins #IBM

SRE #WTFIsCloudNative @holly_cummins #IBM

a new approach to risk #WTFIsCloudNative @holly_cummins #IBM

de-risk through automation, not paperwork #WTFIsCloudNative @holly_cummins #IBM

#WTFIsCloudNative @holly_cummins #IBM

old-style governance isn’t going to work #WTFIsCloudNative @holly_cummins #IBM

“this provisioning software is broken” #WTFIsCloudNative @holly_cummins #IBM

10 minute provision-time what we sold “this provisioning software is broken” #WTFIsCloudNative @holly_cummins #IBM

what the client thought they’d got 3 month provisiontime 10 minute provision-time what we sold “this provisioning software is broken” #WTFIsCloudNative @holly_cummins #IBM

what the client thought they’d got the reason 3 month provisiontime 10 minute provision-time 84-step pre-approval process what we sold “this provisioning software is broken” #WTFIsCloudNative @holly_cummins #IBM