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moby--moby/pkg/namesgenerator/names-generator.go
Michael Crosby 6ec86cb6e5 Improve name generation on concurrent requests
Fixes #2586

This fixes a few races where the name generator asks if a name is free
but another container takes the name before it can be reserved.  This
solves this by generating the name and setting it.  If the set fails
with a non unique error then we try again.
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-05-23 17:51:16 -07:00

91 lines
9.9 KiB
Go

package namesgenerator
import (
"fmt"
"math/rand"
"time"
)
var (
left = [...]string{"happy", "jolly", "dreamy", "sad", "angry", "pensive", "focused", "sleepy", "grave", "distracted", "determined", "stoic", "stupefied", "sharp", "agitated", "cocky", "tender", "goofy", "furious", "desperate", "hopeful", "compassionate", "silly", "lonely", "condescending", "naughty", "kickass", "drunk", "boring", "nostalgic", "ecstatic", "insane", "cranky", "mad", "jovial", "sick", "hungry", "thirsty", "elegant", "backstabbing", "clever", "trusting", "loving", "suspicious", "berserk", "high", "romantic", "prickly", "evil"}
// Docker 0.7.x generates names from notable scientists and hackers.
//
// Ada Lovelace invented the first algorithm. http://en.wikipedia.org/wiki/Ada_Lovelace (thanks James Turnbull)
// Ada Yonath - an Israeli crystallographer, the first woman from the Middle East to win a Nobel prize in the sciences. http://en.wikipedia.org/wiki/Ada_Yonath
// Adele Goldstine, born Adele Katz, wrote the complete technical description for the first electronic digital computer, ENIAC. http://en.wikipedia.org/wiki/Adele_Goldstine
// Alan Turing was a founding father of computer science. http://en.wikipedia.org/wiki/Alan_Turing.
// Albert Einstein invented the general theory of relativity. http://en.wikipedia.org/wiki/Albert_Einstein
// Ambroise Pare invented modern surgery. http://en.wikipedia.org/wiki/Ambroise_Par%C3%A9
// Archimedes was a physicist, engineer and mathematician who invented too many things to list them here. http://en.wikipedia.org/wiki/Archimedes
// Barbara McClintock - a distinguished American cytogeneticist, 1983 Nobel Laureate in Physiology or Medicine for discovering transposons. http://en.wikipedia.org/wiki/Barbara_McClintock
// Benjamin Franklin is famous for his experiments in electricity and the invention of the lightning rod.
// Charles Babbage invented the concept of a programmable computer. http://en.wikipedia.org/wiki/Charles_Babbage.
// Charles Darwin established the principles of natural evolution. http://en.wikipedia.org/wiki/Charles_Darwin.
// Dennis Ritchie and Ken Thompson created UNIX and the C programming language. http://en.wikipedia.org/wiki/Dennis_Ritchie http://en.wikipedia.org/wiki/Ken_Thompson
// Douglas Engelbart gave the mother of all demos: http://en.wikipedia.org/wiki/Douglas_Engelbart
// Elizabeth Blackwell - American doctor and first American woman to receive a medical degree - http://en.wikipedia.org/wiki/Elizabeth_Blackwell
// Emmett Brown invented time travel. http://en.wikipedia.org/wiki/Emmett_Brown (thanks Brian Goff)
// Enrico Fermi invented the first nuclear reactor. http://en.wikipedia.org/wiki/Enrico_Fermi.
// Erna Schneider Hoover revolutionized modern communication by inventing a computerized telephon switching method. http://en.wikipedia.org/wiki/Erna_Schneider_Hoover
// Euclid invented geometry. http://en.wikipedia.org/wiki/Euclid
// Françoise Barré-Sinoussi - French virologist and Nobel Prize Laureate in Physiology or Medicine; her work was fundamental in identifying HIV as the cause of AIDS. http://en.wikipedia.org/wiki/Fran%C3%A7oise_Barr%C3%A9-Sinoussi
// Galileo was a founding father of modern astronomy, and faced politics and obscurantism to establish scientific truth. http://en.wikipedia.org/wiki/Galileo_Galilei
// Gertrude Elion - American biochemist, pharmacologist and the 1988 recipient of the Nobel Prize in Medicine - http://en.wikipedia.org/wiki/Gertrude_Elion
// Grace Hopper developed the first compiler for a computer programming language and is credited with popularizing the term "debugging" for fixing computer glitches. http://en.wikipedia.org/wiki/Grace_Hopper
// Henry Poincare made fundamental contributions in several fields of mathematics. http://en.wikipedia.org/wiki/Henri_Poincar%C3%A9
// Hypatia - Greek Alexandrine Neoplatonist philosopher in Egypt who was one of the earliest mothers of mathematics - http://en.wikipedia.org/wiki/Hypatia
// Isaac Newton invented classic mechanics and modern optics. http://en.wikipedia.org/wiki/Isaac_Newton
// Jane Colden - American botanist widely considered the first female American botanist - http://en.wikipedia.org/wiki/Jane_Colden
// Jane Goodall - British primatologist, ethologist, and anthropologist who is considered to be the world's foremost expert on chimpanzees - http://en.wikipedia.org/wiki/Jane_Goodall
// Jean Bartik, born Betty Jean Jennings, was one of the original programmers for the ENIAC computer. http://en.wikipedia.org/wiki/Jean_Bartik
// Jean E. Sammet developed FORMAC, the first widely used computer language for symbolic manipulation of mathematical formulas. http://en.wikipedia.org/wiki/Jean_E._Sammet
// Johanna Mestorf - German prehistoric archaeologist and first female museum director in Germany - http://en.wikipedia.org/wiki/Johanna_Mestorf
// John McCarthy invented LISP: http://en.wikipedia.org/wiki/John_McCarthy_(computer_scientist)
// June Almeida - Scottish virologist who took the first pictures of the rubella virus - http://en.wikipedia.org/wiki/June_Almeida
// Karen Spärck Jones came up with the concept of inverse document frequency, which is used in most search engines today. http://en.wikipedia.org/wiki/Karen_Sp%C3%A4rck_Jones
// Leonardo Da Vinci invented too many things to list here. http://en.wikipedia.org/wiki/Leonardo_da_Vinci.
// Linus Torvalds invented Linux and Git. http://en.wikipedia.org/wiki/Linus_Torvalds
// Lise Meitner - Austrian/Swedish physicist who was involved in the discovery of nuclear fission. The element meitnerium is named after her - http://en.wikipedia.org/wiki/Lise_Meitner
// Louis Pasteur discovered vaccination, fermentation and pasteurization. http://en.wikipedia.org/wiki/Louis_Pasteur.
// Malcolm McLean invented the modern shipping container: http://en.wikipedia.org/wiki/Malcom_McLean
// Maria Ardinghelli - Italian translator, mathematician and physicist - http://en.wikipedia.org/wiki/Maria_Ardinghelli
// Maria Kirch - German astronomer and first woman to discover a comet - http://en.wikipedia.org/wiki/Maria_Margarethe_Kirch
// Maria Mayer - American theoretical physicist and Nobel laureate in Physics for proposing the nuclear shell model of the atomic nucleus - http://en.wikipedia.org/wiki/Maria_Mayer
// Marie Curie discovered radioactivity. http://en.wikipedia.org/wiki/Marie_Curie.
// Marie-Jeanne de Lalande - French astronomer, mathematician and cataloguer of stars - http://en.wikipedia.org/wiki/Marie-Jeanne_de_Lalande
// Mary Leakey - British paleoanthropologist who discovered the first fossilized Proconsul skull - http://en.wikipedia.org/wiki/Mary_Leakey
// Muhammad ibn Jābir al-Ḥarrānī al-Battānī was a founding father of astronomy. http://en.wikipedia.org/wiki/Mu%E1%B8%A5ammad_ibn_J%C4%81bir_al-%E1%B8%A4arr%C4%81n%C4%AB_al-Batt%C4%81n%C4%AB
// Niels Bohr is the father of quantum theory. http://en.wikipedia.org/wiki/Niels_Bohr.
// Nikola Tesla invented the AC electric system and every gaget ever used by a James Bond villain. http://en.wikipedia.org/wiki/Nikola_Tesla
// Pierre de Fermat pioneered several aspects of modern mathematics. http://en.wikipedia.org/wiki/Pierre_de_Fermat
// Rachel Carson - American marine biologist and conservationist, her book Silent Spring and other writings are credited with advancing the global environmental movement. http://en.wikipedia.org/wiki/Rachel_Carson
// Radia Perlman is a software designer and network engineer and most famous for her invention of the spanning-tree protocol (STP). http://en.wikipedia.org/wiki/Radia_Perlman
// Richard Feynman was a key contributor to quantum mechanics and particle physics. http://en.wikipedia.org/wiki/Richard_Feynman
// Rob Pike was a key contributor to Unix, Plan 9, the X graphic system, utf-8, and the Go programming language. http://en.wikipedia.org/wiki/Rob_Pike
// Rosalind Franklin - British biophysicist and X-ray crystallographer whose research was critical to the understanding of DNA - http://en.wikipedia.org/wiki/Rosalind_Franklin
// Sophie Kowalevski - Russian mathematician responsible for important original contributions to analysis, differential equations and mechanics - http://en.wikipedia.org/wiki/Sofia_Kovalevskaya
// Sophie Wilson designed the first Acorn Micro-Computer and the instruction set for ARM processors. http://en.wikipedia.org/wiki/Sophie_Wilson
// Stephen Hawking pioneered the field of cosmology by combining general relativity and quantum mechanics. http://en.wikipedia.org/wiki/Stephen_Hawking
// Steve Wozniak invented the Apple I and Apple II. http://en.wikipedia.org/wiki/Steve_Wozniak
// Werner Heisenberg was a founding father of quantum mechanics. http://en.wikipedia.org/wiki/Werner_Heisenberg
// William Shockley, Walter Houser Brattain and John Bardeen co-invented the transistor (thanks Brian Goff).
// http://en.wikipedia.org/wiki/John_Bardeen
// http://en.wikipedia.org/wiki/Walter_Houser_Brattain
// http://en.wikipedia.org/wiki/William_Shockley
right = [...]string{"lovelace", "franklin", "tesla", "einstein", "bohr", "davinci", "pasteur", "nobel", "curie", "darwin", "turing", "ritchie", "torvalds", "pike", "thompson", "wozniak", "galileo", "euclid", "newton", "fermat", "archimedes", "poincare", "heisenberg", "feynman", "hawking", "fermi", "pare", "mccarthy", "engelbart", "babbage", "albattani", "ptolemy", "bell", "wright", "lumiere", "morse", "mclean", "brown", "bardeen", "brattain", "shockley", "goldstine", "hoover", "hopper", "bartik", "sammet", "jones", "perlman", "wilson", "kowalevski", "hypatia", "goodall", "mayer", "elion", "blackwell", "lalande", "kirch", "ardinghelli", "colden", "almeida", "leakey", "meitner", "mestorf", "rosalind", "sinoussi", "carson", "mcclintock", "yonath"}
)
func GetRandomName(retry int) string {
rand.Seed(time.Now().UnixNano())
begin:
name := fmt.Sprintf("%s_%s", left[rand.Intn(len(left))], right[rand.Intn(len(right))])
if name == "boring_wozniak" /* Steve Wozniak is not boring */ {
goto begin
}
if retry > 0 {
name = fmt.Sprintf("%s%d", name, rand.Intn(10))
}
return name
}