8 THINGS THAT MAKE CONTINUOUS DELIVERYGO NUTS
Eduards Sizovs
@eduardsi
1 LACK OF ORGANISATIONAL ALIGNMENT
1 LACK OF ORGANISATIONAL ALIGNMENTAKA SHADOW CONTINUOUS DELIVERY
STORY TIME(FINTECH STARTUP, GERMANY)
CONSEQUENCESSLA MISSED - LOST INTEGRATION PARTNER AND ~20K CUSTOMERS
LOST TRUST BETWEEN MANAGEMENT AND IT
LOST TRUST BETWEEN DEV AND OPS
TEAM LEAD FIRED
COMPANY WENT BANKRUPT
CONSEQUENCESSLA MISSED - LOST INTEGRATION PARTNER AND ~20K CUSTOMERS
LOST TRUST BETWEEN MANAGEMENT AND IT
LOST TRUST BETWEEN DEV AND OPS
TEAM LEAD FIRED
COMPANY WENT BANKRUPT
CONSEQUENCESSLA MISSED - LOST INTEGRATION PARTNER AND ~20K CUSTOMERS
LOST TRUST BETWEEN MANAGEMENT AND IT
LOST TRUST BETWEEN DEV AND OPS
TEAM LEAD FIRED
COMPANY WENT BANKRUPT
CONSEQUENCESSLA MISSED - LOST INTEGRATION PARTNER AND ~20K CUSTOMERS
LOST TRUST BETWEEN MANAGEMENT AND IT
LOST TRUST BETWEEN DEV AND OPS
TEAM LEAD FIRED
COMPANY WENT BANKRUPT
CONSEQUENCESSLA MISSED - LOST INTEGRATION PARTNER AND ~20K CUSTOMERS
LOST TRUST BETWEEN MANAGEMENT AND IT
LOST TRUST BETWEEN DEV AND OPS
TEAM LEAD FIRED
COMPANY WENT BANKRUPT
LESSONS LEARNEDSINCE CD IS PRIMARY A HUMAN SYSTEM, ALIGNMENT IS VITAL
SEE THE REASON BEHIND EVERY DENIAL
EMPHATIZE (SPEND A MONTH IN OPS, PAIR-OPS, YBYR)
COMPROMISE, DON'T GO TO THE EXTREME ON THE FIRST JUMP
APPLY BEER-DRIVEN DIPLOMACY
LESSONS LEARNEDSINCE CD IS PRIMARY A HUMAN SYSTEM, ALIGNMENT IS VITAL
SEE THE REASON BEHIND EVERY DENIAL
EMPHATIZE (SPEND A MONTH IN OPS, PAIR-OPS, YBYR)
COMPROMISE, DON'T GO TO THE EXTREME ON THE FIRST JUMP
APPLY BEER-DRIVEN DIPLOMACY
LESSONS LEARNEDSINCE CD IS PRIMARY A HUMAN SYSTEM, ALIGNMENT IS VITAL
SEE THE REASON BEHIND EVERY DENIAL
EMPHATIZE (SPEND A MONTH IN OPS, PAIR-OPS, YBYR)
COMPROMISE, DON'T GO TO THE EXTREME ON THE FIRST JUMP
APPLY BEER-DRIVEN DIPLOMACY
LESSONS LEARNEDSINCE CD IS PRIMARY A HUMAN SYSTEM, ALIGNMENT IS VITAL
SEE THE REASON BEHIND EVERY DENIAL
EMPHATIZE (SPEND A MONTH IN OPS, PAIR-OPS, YBYR)
COMPROMISE, DON'T GO TO THE EXTREME ON THE FIRST JUMP
APPLY BEER-DRIVEN DIPLOMACY
LESSONS LEARNEDSINCE CD IS PRIMARY A HUMAN SYSTEM, ALIGNMENT IS VITAL
SEE THE REASON BEHIND EVERY DENIAL
EMPHATIZE (SPEND A MONTH IN OPS, PAIR-OPS, YBYR)
COMPROMISE, DON'T GO TO THE EXTREME ON THE FIRST JUMP
APPLY BEER-DRIVEN DIPLOMACY
MOVE OPS TO CROSS-FUNCTIONAL TEAM ASYOU DO WITH QA.
HTTPS://DL.DROPBOXUSERCONTENT.COM/U/1018963/ARTICLES/SPOTIFYSCALING.PDF
2 RELYING ON A TIGER TEAM
STORY TIME(FINTECH ENTERPRISE, LATVIA)
LESSONS LEARNEDINVOLVE THOSE AFFECTED BY THE CHANGE IN THE DESIGN OF THE CHANGE.
OVER-UTILIZED "SLAVES" CAN'T DO CD. TIGERS WILL BE HATED.
CD IS A JOURNEY, NOT A MARATHON.
LESSONS LEARNEDINVOLVE THOSE AFFECTED BY THE CHANGE IN THE DESIGN OF THE CHANGE.
OVER-UTILIZED "SLAVES" CAN'T DO CD. TIGERS WILL BE HATED.
CD IS A JOURNEY, NOT A MARATHON.
LESSONS LEARNEDINVOLVE THOSE AFFECTED BY THE CHANGE IN THE DESIGN OF THE CHANGE.
OVER-UTILIZED "SLAVES" CAN'T DO CD. TIGERS WILL BE HATED.
CD IS A JOURNEY, NOT A MARATHON.
3 NEWTON'S LAWS OF SOFTWAREDEVELOPMENT
THE SYSTEM BEING PRODUCED WILL TEND TO HAVE ASTRUCTURE THAT MIRRORS THE STRUCTURE OF THE GROUP
THAT IS PRODUCING IT, WHETHER OR NOT THIS WASINTENDED.
(C) CONWAY'S LAW
YOUR TEAM STRUCTURE WILL OVERRIDE ANY ARCHITECTUREYOU HAVE.
(C) JEFFREY SOLOGOV
TAKEAWAYSCONTINUOUS DELIVERY MAY REQUIRE ORGANISATION TO CHANGE(CONTINUOUSLY, BI-DI)
SOME TEAMS HAVE VERY HIGH PAIN TOLERANCE
PAIN USUALLY LEADS TO PAINKILLERS, INSTEAD OF SOLVING ACTUAL PROBLEMS
RESPECT NEWTON'S LAWS OF SOFTWARE DEVELOPMENT
TAKEAWAYSCONTINUOUS DELIVERY MAY REQUIRE ORGANISATION TO CHANGE(CONTINUOUSLY, BI-DI)
SOME TEAMS HAVE VERY HIGH PAIN TOLERANCE
PAIN USUALLY LEADS TO PAINKILLERS, INSTEAD OF SOLVING ACTUAL PROBLEMS
RESPECT NEWTON'S LAWS OF SOFTWARE DEVELOPMENT
TAKEAWAYSCONTINUOUS DELIVERY MAY REQUIRE ORGANISATION TO CHANGE(CONTINUOUSLY, BI-DI)
SOME TEAMS HAVE VERY HIGH PAIN TOLERANCE
PAIN USUALLY LEADS TO PAINKILLERS, INSTEAD OF SOLVING ACTUAL PROBLEMS
RESPECT NEWTON'S LAWS OF SOFTWARE DEVELOPMENT
TAKEAWAYSCONTINUOUS DELIVERY MAY REQUIRE ORGANISATION TO CHANGE(CONTINUOUSLY, BI-DI)
SOME TEAMS HAVE VERY HIGH PAIN TOLERANCE
PAIN USUALLY LEADS TO PAINKILLERS, INSTEAD OF SOLVING ACTUAL PROBLEMS
RESPECT NEWTON'S LAWS OF SOFTWARE DEVELOPMENT
HOW DOES A PROJECT GET TO BE A YEAR LATE?... ONE DAY AT A TIME
(C) THE MYTHICAL MAN-MONTH
4 MISUNDERSTANDING OF FUNDAMENTALPRINCIPLESBECAUSE BLINDLY FOLLOWING PRACTICES IS NOT ENOUGH
DEPLOYMENT PIPELINE IS IN PLACE, BUT IS INCONSISTENT
DATA MIGRATIONS ARE TESTED. WITH 10 ROWS IN SQLITE
100% UNIT/API/WEB TEST COVERAGE VS. LOW MTTR / MMTD
IF SOMETHING IS DIFFICULT OR PAINFUL, DO IT MORE OFTEN (WHAT IF YOU'REDOING WRONG THING OR DOING THINGS WRONG?)
DEPLOYMENT PIPELINE IS IN PLACE, BUT IS INCONSISTENT
DATA MIGRATIONS ARE TESTED. WITH 10 ROWS IN SQLITE
100% UNIT/API/WEB TEST COVERAGE VS. LOW MTTR / MMTD
IF SOMETHING IS DIFFICULT OR PAINFUL, DO IT MORE OFTEN (WHAT IF YOU'REDOING WRONG THING OR DOING THINGS WRONG?)
DEPLOYMENT PIPELINE IS IN PLACE, BUT IS INCONSISTENT
DATA MIGRATIONS ARE TESTED. WITH 10 ROWS IN SQLITE
100% UNIT/API/WEB TEST COVERAGE VS. LOW MTTR / MMTD
IF SOMETHING IS DIFFICULT OR PAINFUL, DO IT MORE OFTEN (WHAT IF YOU'REDOING WRONG THING OR DOING THINGS WRONG?)
DEPLOYMENT PIPELINE IS IN PLACE, BUT IS INCONSISTENT
DATA MIGRATIONS ARE TESTED. WITH 10 ROWS IN SQLITE
100% UNIT/API/WEB TEST COVERAGE VS. LOW MTTR / MMTD
IF SOMETHING IS DIFFICULT OR PAINFUL, DO IT MORE OFTEN (WHAT IF YOU'REDOING WRONG THING OR DOING THINGS WRONG?)
INVITE ME FOR A COFFEE.
5 OPTIMIZING THE WRONG THING
PUSH
PULL INSTEAD.
Team has 32 cards in process (total WIP) anda throughput of 2 cards/day,
Average cycle time = ??? days
TAKEAWAYSOPTIMIZE THE WHOLE (IN EVERY SYSTEM, EXACTLY ONE CONSTRAINTDETERMINES THE SYSTEM’S CAPACITY)
1 COMPLETED FEATURE BEATS 10 IN PROGRESS
QAS! NEVER BE JUST TESTERS. BE TESTING FACILITATORS.
TAKEAWAYSOPTIMIZE THE WHOLE (IN EVERY SYSTEM, EXACTLY ONE CONSTRAINTDETERMINES THE SYSTEM’S CAPACITY)
1 COMPLETED FEATURE BEATS 10 IN PROGRESS
QAS! NEVER BE JUST TESTERS. BE TESTING FACILITATORS.
TAKEAWAYSOPTIMIZE THE WHOLE (IN EVERY SYSTEM, EXACTLY ONE CONSTRAINTDETERMINES THE SYSTEM’S CAPACITY)
1 COMPLETED FEATURE BEATS 10 IN PROGRESS
QAS! NEVER BE JUST TESTERS. BE TESTING FACILITATORS.
6 DELIVERING THE WRONG THING
CONTINUOUS DELIVERY IS A SOFTWARE ENGINEERINGAPPROACH IN WHICH TEAMS KEEP PRODUCING VALUABLE
SOFTWARE IN SHORT CYCLES AND ENSURE THAT THESOFTWARE CAN BE RELIABLY RELEASED AT ANY TIME
(C) WIKIPEDIA
BEFORE DOING CONTINUOUS DELIVERY, FINDOUT WHAT VALUE REALLY MEANS, FOR
WHOM AND HOW TO MINE IT.
VALUE MININGGENCHI GENBUTSU
WORK CLOSELY WITH CUSTOMER SERVICE TEAM
JUST BUILD IT!
BECOME A CUSTOMER
VALUE MININGGENCHI GENBUTSU
WORK CLOSELY WITH CUSTOMER SERVICE TEAM
JUST BUILD IT!
BECOME A CUSTOMER
VALUE MININGGENCHI GENBUTSU
WORK CLOSELY WITH CUSTOMER SERVICE TEAM
JUST BUILD IT!
BECOME A CUSTOMER
VALUE MININGGENCHI GENBUTSU
WORK CLOSELY WITH CUSTOMER SERVICE TEAM
JUST BUILD IT!
BECOME A CUSTOMER
MINIMIZE OUTPUT, MAXIMIZE OUTCOME.
7 TECHNICAL OBSESSION
VERY FAMOUS PRODUCT COMPANY, AUSTRALIA
CHALLENGE: IMPLEMENT AUTO-DEPLOYMENT WITH AUTO-SCALING
STACK: AWS, CAPISTRANO (TOO SIMPLE AND BORING)
IT SURE WOULD BE FUN TO USE...
IT SURE WOULD BE FUN TO USE...
DOCKER
IT SURE WOULD BE FUN TO USE...
DOCKER
BECAUSE...
IT SURE WOULD BE FUN TO USE...
DOCKER
BECAUSE...
EVERYONE IS USING IT
IT SURE WOULD BE FUN TO USE...
DOCKER
BECAUSE...
EVERYONE IS USING IT
AND IT OPENS NEW OPPORTUNITIES
1 MONTH LATER...
HYDRA WAS BORN
HYDRA WAS BORN
IN GREEK MYTHOLOGY, THE LERNAEAN HYDRA WAS ANANCIENT SERPENT-LIKE WATER MONSTER WITH REPTILIANTRAITS. IT POSSESSED MANY HEADS – MORE HEADS THANTHE VASE-PAINTERS COULD PAINT – AND FOR EACH HEADCUT OFF IT GREW TWO MORE.
AFTER 3 MONTHS LONG WAR, TEAM SUFFERED MANY LOSSESAND CAPITULATED. IT TOOK THEM ONE MORE MONTH TO
MOVE BACK TO GOOD, OLD AND SIMPLE STACK AND JUST 2WEEKS TO ACHIEVE THE INITIAL GOAL.
[TRENDY SOLUTIONS] ARE LIKE TEENAGE SEX. EVERYONE ISTALKING ABOUT IT BUT FEW HAVE ACTUALLY DONE IT.
[TRENDY SOLUTIONS] ARE LIKE TEENAGE SEX. EVERYONE ISTALKING ABOUT IT BUT FEW HAVE ACTUALLY DONE IT.
EVEN IF EVERYONE IS DOING... DOESN'T MEAN YOU NEED TO
THE LAW OF LEAKY ABSTRACTIONS HURTS
COMPLEXITAX IS THE EXTRA COST THAT YOU PAY FORACCIDENTAL COMPLEXITY INTRODUCED BY A TOOL THAT DOES
MORE THAN YOU NEED.
(C) NEAL FORD
WRITE DOWN EXACTLY WHAT IT IS ABOUT THE CURRENTSTACK THAT MAKES SOLVING THE PROBLEM PROHIBITIVELY
EXPENSIVE AND DIFFICULT.
8 GIVING UP TOO EARLY
I DON'T KEEP UP WITH TESTING!
I DON'T KEEP UP WITH TESTING!
WORKING IN TRUNK IS STUPID AND DANGEROUS IDEA.
I DON'T KEEP UP WITH TESTING!
WORKING IN TRUNK IS STUPID AND DANGEROUS IDEA.
DEPLOYMENT IS SO ANNOYING!
I DON'T KEEP UP WITH TESTING!
WORKING IN TRUNK IS STUPID AND DANGEROUS IDEA.
DEPLOYMENT IS SO ANNOYING!
YOU REALLY WANT ME TO TALK TO SECURITY OFFICER?
CISSP®CERTIFIED INFORMATION SYSTEMS SECURITY PROFESSIONAL
I DON'T KEEP UP WITH TESTING!
WORKING IN TRUNK IS STUPID AND DANGEROUS IDEA.
DEPLOYMENT IS SO ANNOYING!
YOU REALLY WANT ME TO TALK TO SECURITY OFFICER?
IT DOESN'T WORK FOR US!
CONTINUOUS DELIVERY CAUSES SO MANYPROBLEMS!
CONTINUOUS DELIVERY CAUSES REVEALS SOMANY PROBLEMS!
OBSTACLES, OBSTACLES, OBSTACLES...
THANK YOU