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Viewing changes to Administration/Server/Orchestration/openshift/kubernetes.txt

  • Committer: Suren A. Chilingaryan
  • Date: 2017-04-03 02:45:17 UTC
  • Revision ID: csa@suren.me-20170403024517-dwzj0z0k1cmhxm7u
Restructuring, OpenShift, Ansible, Git

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Administration/Server/Orchestration/openshift/kubernetes.txt
 
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OpenShift does not provide a full interface to kubernets. Some advanced actions are only possible if kubernetes is configured 
 
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directly (which is fully OK).
 
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    kubectl cluster-info                                        - Get infromation about Kubernets master
 
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Configuring Afinity
 
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===================
 
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* Not tested...
 
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template:
 
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    metadata:
 
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      annotations:
 
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        scheduler.alpha.kubernetes.io/affinity: |
 
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          {
 
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            "podAntiAffinity": {                                                        - nodeAffinity, podAffinity, nodeAntiAffinity, podAntiAffinity
 
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              "requiredDuringSchedulingIgnoredDuringExecution": [{                      - preferredDuringSchedulingIgnoredDuringExecution
 
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                "labelSelector": {                                                      - labelSelector (for pods) and nodeSelectorTerms (nodes)
 
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                  "matchExpressions": [{
 
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                    "key": "docker-registry",
 
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                    "operator": "In",
 
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                    "values":["default"]
 
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                  }]
 
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                },
 
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                "topologyKey": "kubernetes.io/hostname"
 
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              }]
 
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            }
 
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          }
 
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template:
 
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Seems not working [not important now].
 
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    metadata:
 
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      annotations:
 
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        scheduler.alpha.kubernetes.io/affinity: >
 
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          {
 
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            "nodeAffinity": {
 
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              "preferredDuringSchedulingIgnoredDuringExecution": {
 
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                "labelSelector": [{
 
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                  "matchExpressions": [{
 
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                    "key": "master",
 
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                    "operator": "In",
 
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                    "values":["0"]
 
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                  }]
 
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                }]
 
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              }
 
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            }
 
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          }
 
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