

20170329_kubeCon_1.2

20170329_kubeCon_1.2

• 2 - Presentations
• 2.1 - Powering Public Infrastructure with Kubernetes
  • Context
  • The Stack
  • CFG MGMT ?
  • Challenges
  • Dev&Ops collaboration
  • CI/CD
  • Deployment
  • Still challenging
  • Future

2 - Presentations

2.1 - Powering Public Infrastructure with Kubernetes

Context

Business: Deutch Bahn public display of Trains departures, arrivals and misc

2 years ago: Not a lot of products and possibility
Nowadays: Plenty of solutions !

The Stack

• CoreOS
• Alpine Linux within Docker
• K8s Clustering
• K8s Orchestrations

CFG MGMT ?

• For applications deployment: We did want to go with cfgmnt (Puppet, Chef, Ansible or whatever)
• For underlying Infra: Why not

Challenges

• Baremetal
• Private Cloud
• Public Cloud

Dev&Ops collaboration

• Delivering kubectl access to devs
• Running on AWS but not using the Saas: Raw IAAS
• 1 Portable API

CI/CD

• Lots of products and new stuff
• We went with Gitlab workers

Deployment

• Namespaces as “isolated environments”
• Helm Charts + Go Templating + k8s objects (Config map, secrets,

Still challenging

• k8s Bootstraping
• k8s Upgrade
• Debugging capacities
• Legacy apps
• Beware of appealing alpha or incubator features

Future

• Federations
• Failover
• Move to RBAC with k8s 1.6