Flying v. Driving: Myths, fears, and opportunity when going serverless - DevOps Days Chicago 2018

Going serverless is a lot like deciding to fly instead of driving. Flying is routinely safer than driving to your destination but requires a high level of trust in your airline and many are still scared. We’ll explore going serverless by confronting fears and examining it’s new issues.

Transcript

1. @tmclaughbos SERVERLESSOPS MYTHS, FEARS, AND OPPORTUNITY WHEN GOING SERVERLESS FLYING V. DRIVING
2. HOW DID THIS TALK COME ABOUT?
3. LET’S PLAN MY TRIP TO DENVER SEATTLE CHICAGO
5. ACCIDENTS & FAILURE
6. SERVERLESSOPS @tmclaughbos TRAVEL ACCIDENTS & FAILURE
7. SERVERLESSOPS @tmclaughbos CLOUD ACCIDENTS & FAILURE
8. @tmclaughbos SERVERLESSOPS THIS ISSUES I WORRY ABOUT WITH SERVERS ▸ Are we under or over sized? ▸ Do we have enough CPU, RAM, disk? ▸ Is every necessary service on the host running? ▸ Are we all up to date with OS patching? ▸ Is this sysctl or config value set? ▸ Are we on the right version? I think that was fixed two releases ago.
9. @tmclaughbos SERVERLESSOPS THIS ISSUES I WORRY ABOUT WITH SERVERLESS ▸ Is the application responsive? ▸ Are application requests returned in a timely manner? ▸ What do application error rates look like? ▸ How do we handle application traffic spikes? ▸ How complex of an application have we built?
10. @tmclaughbos SERVERLESSOPS ACCIDENTS AND FAILURE WHEN SERVERLESS ▸ AWS is probably better at the low-level undifferentiated work than you. ▸ Less control also means less things you can break. ▸ This frees you to worry about issues higher up the stack.
11. COST
12. AWS SAYS COMPANY XYZ SAVED 84% BY MOVING TO AWS LAMBDA… https://aws.amazon.com/solutions/case-studies/bustle/
13. SERVERLESSOPS @tmclaughbos HERE’S MY FLIGHT OPTIONS…
14. @tmclaughbos SERVERLESSOPS TRAVEL BY CAR ((1000 miles / 36mpg) * $2.66/gal) * 2 Total: $147 round trip
15. @tmclaughbos SERVERLESSOPS FLIGHT V. DRIVING TO CHICAGO ((1000 miles / 36mpg) * $2.66/gal) * 2 Total: $147 round trip
16. @tmclaughbos SERVERLESSOPS FLIGHT V. DRIVING TO CHICAGO ((1000 miles / 26mpg) * $3.00/gal) * 2 Total: $230 round trip
17. @tmclaughbos SERVERLESSOPS FLIGHT V. DRIVING TO CHICAGO ((1000 miles / 13mpg) * $3.00/gal) * 2 Total: $460 round trip
18. @tmclaughbos SERVERLESSOPS ACTUAL TRAVEL COSTS ‣ Ticket: $289 ‣ Lyft: ‣ Airport <—> Home: $10 x 2 ‣ Airport <—> Hotel: $43 x 2 Total: $395 ‣ Gas: $230 ‣ Hotel: $79 in Cleveland ‣ Meals ‣ Breakfast: $7.50 ‣ Lunch: $7.50 ‣ Dinner: $7.50 ‣ Coffee: $7.50 ($3.75 * 2) Total: $339
19. @tmclaughbos SERVERLESSOPS LAMBDA VS. EC2 COSTS (THAT WE TELL OURSELVES) ‣ Instance: 1 x t2.nano Total: $4.25/month ‣ Requests: 2,678,400 (1rps) ‣ Duration: 100ms ‣ Memory: 128MB Total: $0.55/month
20. @tmclaughbos SERVERLESSOPS LAMBDA VS. EC2 COSTS (ACTUAL) ‣ Instance: 2 x m4.large ($146.40) ‣ SaaS services: ‣ Logging: $20 ($10 * 2) ‣ Security: $20 ($10 * 2) Total: $186.40/month ‣ Invocations: 2,678,400 ($0.557 - 1rps) ‣ Duration: 100ms ‣ Memory: 128MB ‣ Requests: 2,678,400 ($0.535) Total: $1.09/month
21. @tmclaughbos SERVERLESSOPS LAMBDA VS. EC2 COSTS (ACTUAL) ‣ Instance: 2 x m4.large ($146.40) ‣ SaaS services: ‣ Logging: $20 ($10 * 2) ‣ Security: $20 ($10 * 2) Total: $186.40/month ‣ Invocations: 267,840,000 ($55.71 - 100rps) ‣ Duration: 100ms ‣ Memory: 128MB ‣ Requests: 267,840,000 ($53.56) Total: $109.27/month
22. @tmclaughbos SERVERLESSOPS LAMBDA VS. EC2 COSTS (ACTUAL) ‣ Instance: 2 x m4.large ($146.40) ‣ SaaS services: ‣ Logging: $20 ($10 * 2) ‣ Security: $20 ($10 * 2) Total: $186.40/month ‣ Invocations: 267,840,000 ($223.38 - 100rps) ‣ Duration: 200ms ‣ Memory: 256MB ‣ Requests: 267,840,000 ($53.56) Total: $276.93/month
23. @tmclaughbos SERVERLESSOPS BOTH OF THESE CAN BE TRUE ‣ “Lambda saved us 85% on our bill.” ‣ “Moving to EC2 from Lambda saved us 99% on our bill.”
24. @tmclaughbos SERVERLESSOPS ACTUAL TRAVEL COSTS: DENVER ‣ Ticket: $340 ‣ Lyft: ‣ Airport <—> Home: $10 x 2 ‣ Airport <—> Hotel: $33 x 2 Total: $426 ‣ Gas: $296 ‣ Hotel: $92 (Cleveland: $43 + De Moines: $49) ‣ Meals ‣ Breakfast: $15 ($7.50 *2) ‣ Lunch: $15 ($7.50 * 2) ‣ Dinner: $15 ($7.50 * 2) ‣ Coffee: $15 ($3.75 * 3) Total: $448
25. @tmclaughbos SERVERLESSOPS ACTUAL TRAVEL COSTS: SEATTLE ‣ Ticket: $385 ‣ Lyft: ‣ Airport <—> Home: $10 x 2 ‣ Airport <—> Hotel: $29 x 2 Total: $463 ‣ Gas: $443 ‣ Hotel: $152 (Cleveland: $43 + Minneapolis: $50 + Billings: $59) ‣ Meals ‣ Breakfast: $22.50 ($7.50 *3) ‣ Lunch: $30 ($7.50 * 4) ‣ Dinner: $22.50 ($7.50 * 3) ‣ Coffee: $30 ($3.75 * 8) Total: $700
26. @tmclaughbos SERVERLESSOPS ACTUAL TRAVEL COSTS: CHICAGO ‣ Ticket: $289 ‣ Lyft: ‣ Airport <—> Home: $10 x 2 ‣ Airport <—> Hotel: $43 x 2 Total: $395 ‣ Gas: $230 ‣ Hotel: $79 in Cleveland ‣ Meals ‣ Breakfast: $7.50 ‣ Lunch: $7.50 ‣ Dinner: $7.50 ‣ Coffee: $7.50 ($3.75 * 2) Total: $339
28. THE RIDE ITSELF
29. @tmclaughbos SERVERLESSOPS THINGS YOU CAN DO WHILE DRIVING ▸ Drive
30. @tmclaughbos SERVERLESSOPS THINGS YOU CAN DO WHILE FLYING ▸ Read ▸ Watch movies ▸ Deliver Twitter hottakes ▸ Email ▸ Code ▸ Write blog post ▸ Write a conference presentation
31. I WANT THE FOCUS OF MY TRIP TO BE MY DESTINATION, NOT HOW I GOT THERE.
32. SERVERLESSOPS @TMCLAUGHBOS WHAT I DO WITH SERVERS ‣ Managing a host deployment system ‣ Managing an app deployment system ‣ Config management ‣ Monitoring host state & metrics ‣ Monitoring app state & metrics ‣ Patching hosts ‣ Monitoring who logged in ‣ Scaling services
33. SERVERLESSOPS @TMCLAUGHBOS WHAT I DO WITH SERVERLESS ‣ Managing a host deployment system ‣ Managing an app deployment system ‣ Config management ‣ Monitoring host state & metrics ‣ Monitoring app state & metrics ‣ Patching hosts apps ‣ Monitoring who logged in resource access ‣ Scaling services systems
34. SERVERLESSOPS @tmclaughbos WHAT I WANT TO START MONITORING
35. SERVERLESSOPS @tmclaughbos WHAT I USED TO FOCUS ON VERSUS WHAT I WANT TO FOCUS ON
36. (THIS SLIDE LEFT BLANK)
37. THANK YOU @tmclaughbos SERVERLESSOPS HTTPS://WWW.SERVERLESSOPS.IO