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- Annabella Townsend
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Transcription
1
2 Stuff I do
3 Follow me!
4 About this talk 1. Maintaining your Build Stack 2. Orchestrating your Cluster 3. Pitfalls and Recommendations
5 About this talk 1. Maintaining your Build Stack 2. Orchestrating your Cluster 3. Pitfalls and Recommendations
6 About this talk 1. Maintaining your Build Stack 2. Orchestrating your Cluster 3. Pitfalls and Recommendations
7 Maintaining your Build Stack How Docker Images are Built
8 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04
9 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04 RUN apt-get install...
10 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04 RUN apt-get install... COPY files/etc /etc
11 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04 RUN apt-get install... COPY files/etc /etc COPY init.sh /init.sh
12 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04 RUN apt-get install... COPY files/etc /etc COPY init.sh /init.sh CMD /init.sh
13 Maintaining your Build Stack How Docker Images are Built FROM ubuntu:16.04 RUN apt-get install... COPY files/etc /etc COPY init.sh /init.sh CMD /init.sh e87eea c90c59c c6577f f1c4 9e54da99b80c
14 Maintaining your Build Stack How Docker Images are Built latest FROM ubuntu:16.04 RUN apt-get install... COPY files/etc /etc COPY init.sh /init.sh CMD /init.sh e87eea c90c59c c6577f f1c4 9e54da99b80c
15 Maintaining your Build Stack Server Your Laptop
16 Maintaining your Build Stack Docker Image Server Your Laptop
17 Maintaining your Build Stack Docker Image Docker Image Server Your Laptop
18 Maintaining your Build Stack Docker Image Docker Image Server Your Laptop
19 Maintaining your Build Stack Registry Docker Image Server Your Laptop
20 Maintaining your Build Stack Docker Image Registry docker push Docker Image Server Your Laptop
21 Maintaining your Build Stack Docker Image Registry Docker Image Docker Image Server Your Laptop
22 Maintaining your Build Stack Docker Image Registry Docker Image Docker Container Server Docker Image Your Laptop
23 Follow me! Problems:
24 Follow me! Problems: High Bandwidth Usage
25 Follow me! Problems: High Bandwidth Usage Different Hashes on Different Machines
26 Maintaining your Build Stack Registry CI Server Git Server Dockerfile Server Your Laptop
27 Maintaining your Build Stack Dockerfile Registry CI Server Git Server Dockerfile Server Your Laptop
28 Maintaining your Build Stack Dockerfile Dockerfile Registry CI Server Git Server Dockerfile Server Your Laptop
29 Maintaining your Build Stack Registry Dockerfile Docker Image CI Server Dockerfile Git Server Dockerfile Server Your Laptop
30 Maintaining your Build Stack Docker Image Registry Dockerfile Docker Image CI Server Dockerfile Git Server Dockerfile Server Your Laptop
31 Maintaining your Build Stack Docker Image Registry Dockerfile Docker Image CI Server Dockerfile Git Server Docker Image Dockerfile Server Your Laptop
32 Maintaining your Build Stack Docker Image Registry Dockerfile Docker Image CI Server Dockerfile Git Server Docker Image Docker Container Server Dockerfile Your Laptop
33 Maintaining your Build Stack CI server YES YES YES YES YES Docker Repository YES YES YES YES
34 Orchestrating your Cluster How do you run a Docker image?
35 Orchestrating your Cluster How do you run a Docker image? ssh youruser@example.com "docker run yourcontainer"
36 Orchestrating your Cluster How do you run a Docker image? ssh youruser@example.com "docker run yourcontainer"
37 Orchestrating your Cluster Orchestration tools
38 Orchestrating your Cluster Orchestration tools Where is my service?
39 Orchestrating your Cluster Orchestration tools Where is my service? Rolling updates
40 Orchestrating your Cluster Orchestration tools Where is my service? Rolling updates Scaling
41 Orchestrating your Cluster Orchestration tools Where is my service? Rolling updates Scaling Virtual networks
42 Orchestrating your Cluster Orchestration tools Where is my service? Rolling updates Scaling Virtual networks...
43 Orchestrating your Cluster Orchestration tools AWS EC2 Container Service Docker Swarm Kubernetes...
44 Orchestrating your Cluster EC2 Container Service
45 Orchestrating your Cluster EC2 Container Service + Integrated with AWS
46 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited)
47 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited) + Integrated registry
48 Orchestrating your Cluster EC2 Container Service + Integrated with AWS - Using the ELB is a must + Autoscaling (limited) + Integrated registry
49 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited) - Using the ELB is a must - No built-in DNS server + Integrated registry
50 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited) + Integrated registry - Using the ELB is a must - No built-in DNS server - Slow rollout
51 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited) + Integrated registry - Using the ELB is a must - No built-in DNS server - Slow rollout - No overlay network
52 Orchestrating your Cluster EC2 Container Service + Integrated with AWS + Autoscaling (limited) + Integrated registry - Using the ELB is a must - No built-in DNS server - Slow rollout - No overlay network - Outdated
53 Orchestrating your Cluster Docker Swarm
54 Orchestrating your Cluster Docker Swarm + (Very) Simple
55 Orchestrating your Cluster Docker Swarm + (Very) Simple + Overlay Networks
56 Orchestrating your Cluster Docker Swarm + (Very) Simple + Overlay Networks + Built-in DNS server and LB
57 Orchestrating your Cluster Docker Swarm + (Very) Simple + Overlay Networks + Built-in DNS server and LB + Fast rollout
58 Orchestrating your Cluster Docker Swarm + (Very) Simple - Very young (YMMV) + Overlay Networks + Built-in DNS server and LB + Fast rollout
59 Orchestrating your Cluster Docker Swarm + (Very) Simple + Overlay Networks - Very young (YMMV) - No Autoscaling + Built-in DNS server and LB + Fast rollout
60 Orchestrating your Cluster Docker Swarm + (Very) Simple + Overlay Networks + Built-in DNS server and LB - Very young (YMMV) - No Autoscaling - Monolithic (no plugins) + Fast rollout
61 Orchestrating your Cluster Kubernetes + Overlay networks
62 Orchestrating your Cluster Kubernetes + Overlay networks + Autoscaling
63 Orchestrating your Cluster Kubernetes + Overlay networks + Autoscaling + Rack awareness
64 Orchestrating your Cluster Kubernetes + Overlay networks + Autoscaling + Rack awareness + Plugins, everywhere
65 Orchestrating your Cluster Kubernetes + Overlay networks + Autoscaling + Rack awareness + Plugins, everywhere + Makes you coffee
66 Orchestrating your Cluster Kubernetes + Overlay networks - Complex to set up + Autoscaling + Rack awareness + Plugins, everywhere + Makes you coffee
67 Orchestrating your Cluster Kubernetes + Overlay networks + Autoscaling + Rack awareness - Complex to set up - Setup scripts and docs are beta / unstable / outdated + Plugins, everywhere + Makes you coffee
68 Pitfalls and Recommendations Oops...
69 Pitfalls and Recommendations Multiple services in one container?
70 Pitfalls and Recommendations Multiple services in one container? DON T!
71 Pitfalls and Recommendations supervisord nginx PHP-FPM
72 Pitfalls and Recommendations supervisord nginx PHP-FPM
73 Pitfalls and Recommendations supervisord nginx
74 Pitfalls and Recommendations Sidecar services
75 Pitfalls and Recommendations supervisord PHP-FPM nullmailer
76 Pitfalls and Recommendations supervisord PHP-FPM nullmailer manage-supervisord
77 Pitfalls and Recommendations supervisord PHP-FPM nullmailer manage-supervisord
78 Pitfalls and Recommendations supervisord PHP-FPM manage-supervisord
79 Pitfalls and Recommendations supervisord PHP-FPM manage-supervisord
80 Pitfalls and Recommendations Shell script in CMD?
81 Pitfalls and Recommendations Shell script in CMD? BE CAREFUL!
82 Pitfalls and Recommendations #!/bin/bash # Other stuff here /usr/sbin/nginx -g "daemon off;" exit $?
83 Pitfalls and Recommendations bash -c /init.sh nginx
84 Pitfalls and Recommendations SIGTERM bash -c /init.sh nginx
85 Pitfalls and Recommendations SIGTERM bash -c /init.sh YOLO! nginx
86 Pitfalls and Recommendations SIGKILL! bash -c /init.sh nginx
87 Pitfalls and Recommendations #!/bin/bash # Other stuff here exec /usr/sbin/nginx -g "daemon off;"
88 Pitfalls and Recommendations bash -c /init.sh
89 Pitfalls and Recommendations nginx
90 Pitfalls and Recommendations Don t update your containers!
91 Pitfalls and Recommendations Shared data?
92 Pitfalls and Recommendations Container Server
93 Pitfalls and Recommendations /srv/mysql Container bind mount Server
94 Pitfalls and Recommendations /srv/mysql Container Server Server
95 Pitfalls and Recommendations Healthchecks?
96 Pitfalls and Recommendations Dockerfile: HEALTHCHECK \ --interval=10s \ --timeout=3s \ CMD /usr/local/bin/healthcheck healthcheck: #!/bin/bash test $(SCRIPT_NAME=/status SCRIPT_FILENAME=/status REQUEST_METHOD=GET cgi-fcgi -bind -connect :9000 grep pool cut -d: -f2 sed 's/ //g') == www exit 1
97 Pitfalls and Recommendations healthcheck: #!/bin/bash test $(SCRIPT_NAME=/status SCRIPT_FILENAME=/status REQUEST_METHOD=GET cgi-fcgi -bind -connect :9000 grep pool cut -d: -f2 sed 's/ //g') == www exit 1
98 Pitfalls and Recommendations Docker Swarm: HEALTHCHECK \ --interval=10s \ --timeout=3s \ CMD /usr/local/bin/healthcheck
99 Pitfalls and Recommendations Kubernetes: spec: containers: - name: yourpod livenessprobe: exec: command: - /usr/local/bin/healthcheck initialdelayseconds: 5 periodseconds: 5 readinessprobe:...
100 Pitfalls and Recommendations TEST YO CONTAINERS!
101 Pitfalls and Recommendations docker-compose.test.yml version: '3.2' services: mysql: container_name: mysql build:.... sut: build:./test...
102 Pitfalls and Recommendations DO NOT HARD-CODE CREDENTIALS!
103 Pitfalls and Recommendations VERSION YOUR IMAGES!
104 Pitfalls and Recommendations CAREFUL WITH 3RD PARTY IMAGES!
105 Pitfalls and Recommendations opsbears/base opsbears/supervisord opsbears/nginx opsbears/mysql opsbears/nullmailer opsbears/php-fpm
106 Pitfalls and Recommendations REMOVE DEV STUFF!
107 That s all! Questions? Many thanks to Bence Sántha, Gábor Vereb, Dávid Papp for their inspiration and feedback.
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