Time Traveling in the Universe of Microservices and Orchestration

Transcript

1. @errordeveloper Time Traveling in the Universe of Microservices and Orchestration
2. outline: 1. my journey in software
3. outline: 2. where are we today
4. containers?
5. 1. packages
6. 2. resources
7. university life
9. root #
10. root # chroot /mnt/gentoo /bin/bash
11. root # chroot /mnt/gentoo /bin/bash root # source /etc/profile
12. root # chroot /mnt/gentoo /bin/bash root # source /etc/profile root #
13. root # chroot /mnt/gentoo /bin/bash root # source /etc/profile root # export PS1="(chroot) $PS1"
14. root # chroot /mnt/gentoo /bin/bash root # source /etc/profile root # export PS1="(chroot) $PS1" (chroot) root #
15. root # chroot /mnt/gentoo /bin/bash root # source /etc/profile root # export PS1="(chroot) $PS1" (chroot) root # emerge \ --ask \ --update \ --deep \ --newuse \ @world
16. root # man nice
17. >
18. > ./configure \ --prefix=/opt/${PN}-${PV} \ --with-<something>-path=… > make && make install
19. >
20. > make CC=
21. > make CC=arm-none-eabi-gcc
22. > make CC=arm-none-eabi-gcc \ LD=arm-none-eabi-ld
24. > module load gcc/6.1.1 > which gcc /usr/local/gcc/6.1.1/linux-x86_64/bin/gcc > module unload gcc > which gcc gcc: Command not found. http://modules.sourceforge.net
25. http://modules.sourceforge.net
28. work life
29. shared hosting
30. shared hosting
31. devops hammer
32. #!/bin/bash -eu git clone $repo $dir cd $dir puppet apply manifest.pp
33. # add this to your profile [[ -s $HOME/.rvm/scripts/rvm ]] \ && source $HOME/.rvm/scripts/rvm # you will get $PATH modified on chdir cd(){ builtin cd $* source after_cd_hooks }
34. > sudo apt-get install rubygems > sudo gem install bundler > cd /opt/$myapp > bundle install
35. > sudo apt-get install python-pip > sudo pip install --upgrade pip > cd /opt/$myapp > pip install -r requirements.txt
36. > sudo apt-get install nodejs > cd /opt/$myapp > npm install
37. > cap deploy:production
38. > cap break:production
40. > my_vm="$(vm take)” > vm ssh “${my_vm}”
41. > my_vm="$(vm take)” > vm ssh “${my_vm}” vm-012345> # do work
42. > my_vm="$(vm take)” > vm ssh “${my_vm}” vm-012345> # do work > vm kill "${my_vm}"
43. docker goes viral
44. today
45. Weave Net app overlay network
46. host2 host1 8083 8083 8081 8082
47. host2 host1 8081 8082 8083 8083 8081 8082
48. host2 host1 8081 8082 8083 8083 8081 8082 9083 9081 9082
49. host2 host1 8081 8082 8083 8083 8081 8082 9083 9081 9081 8084 8084
50. $ORIGIN example.com $TTL 86400 @ IN SOA dns1.example.com. hostmaster.example.com. ( 2001062501 ; serial 21600 ; refresh after 6 hours 3600 ; retry after 1 hour 604800 ; expire after 1 week 86400 ) ; minimum TTL of 1 day IN NS dns1.example.com. IN NS dns2.example.com. IN MX 10 mail.example.com. IN MX 20 mail2.example.com. IN A 10.0.1.5 server1 IN A 10.0.1.5 server2 IN A 10.0.1.7 dns1 IN A 10.0.1.2 dns2 IN A 10.0.1.3 ftp IN CNAME server1 mail IN CNAME server1 mail2 IN CNAME server2 www IN CNAME server2
51. $ORIGIN example.com $TTL 86400 @ IN SOA dns1.example.com. hostmaster.example.com. ( 2001062501 ; serial 21600 ; refresh after 6 hours 3600 ; retry after 1 hour 604800 ; expire after 1 week 86400 ) ; minimum TTL of 1 day IN NS dns1.example.com. IN NS dns2.example.com. IN MX 10 mail.example.com. IN MX 20 mail2.example.com. IN A 10.0.1.5 server1 IN A 10.0.1.5 server2 IN A 10.0.1.7 dns1 IN A 10.0.1.2 dns2 IN A 10.0.1.3 ftp IN CNAME server1 mail IN CNAME server1 mail2 IN CNAME server2 www IN CNAME server2 642 pages
52. host2 host1 8080 8080 8080 8080 8080 8080 8080 8080 8080 8080 8080 Weave Net
53. host2 host1 8080 8080 8080 8080 8080 8080 8080 8080 8080 8080 8080 denied! NetworkPolicy
54. Weave Scope distributed observability
58. app runtime metadata and APIs
59. > ps -ef | grep java java -jar /opt/myapp-v2.jar > stat -c %y /opt/myapp-v2.jar 2005-06-25 17:52:40.000000000
60. filter containers by image & sort by count
61. examine relationship between containers e.g. front-end & load-test
62. examine memory usage of related microservices and time travel!
63. here’s what it did last night!
64. easily check if a container works correctly e.g. load-test is still running without errors
65. GitOps API-driven deployments
66. every deploy action is checked in git
67. every deploy action is checked in git e.g. locking a service stores an annotation
68. every deploy action is checked in git e.g. locking a service stores an annotation
69. correlate metrics with deployments
70. find changes that affected the metrics
71. live demo: using Weave Cloud with DC/OS & Kubernetes
72. cloud.weave.works
73. ilya@weave.works slack.weave.works
74. meetup.com/pro/Weave