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98300e3165
5 changed files with 47 additions and 1 deletions
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@ -185,3 +185,8 @@ persistent_volumes_enabled: false
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## Supplementary addresses that can be added in kubernetes ssl keys.
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## That can be useful for example to setup a keepalived virtual IP
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# supplementary_addresses_in_ssl_keys: [10.0.0.1, 10.0.0.2, 10.0.0.3]
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## Running on top of openstack vms with cinder enabled may lead to unschedulable pods due to NoVolumeZoneConflict restriction in kube-scheduler.
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## See https://github.com/kubernetes-incubator/kubespray/issues/2141
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## Set this variable to true to get rid of this issue
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volume_cross_zone_attachment: false
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@ -85,3 +85,6 @@ scheduler_custom_flags: []
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# kubeadm settings
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# Value of 0 means it never expires
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kubeadm_token_ttl: 0
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## Variable for influencing kube-scheduler behaviour
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volume_cross_zone_attachment: false
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@ -9,6 +9,13 @@
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- meta: flush_handlers
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- name: Write kube-scheduler policy file
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template:
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src: kube-scheduler-policy.yaml.j2
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dest: "{{ kube_config_dir }}/kube-scheduler-policy.yaml"
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tags:
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- kube-scheduler
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- name: Write kube-scheduler kubeconfig
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template:
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src: kube-scheduler-kubeconfig.yaml.j2
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@ -39,4 +46,4 @@
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tags:
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- kube-controller-manager
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- meta: flush_handlers
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- meta: flush_handlers
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@ -0,0 +1,18 @@
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{
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"kind" : "Policy",
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"apiVersion" : "v1",
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"predicates" : [
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{"name" : "PodFitsHostPorts"},
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{"name" : "PodFitsResources"},
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{"name" : "NoDiskConflict"},
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{"name" : "MatchNodeSelector"},
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{"name" : "HostName"}
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],
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"priorities" : [
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{"name" : "LeastRequestedPriority", "weight" : 1},
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{"name" : "BalancedResourceAllocation", "weight" : 1},
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{"name" : "ServiceSpreadingPriority", "weight" : 1},
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{"name" : "EqualPriority", "weight" : 1}
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],
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"hardPodAffinitySymmetricWeight" : 10
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}
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@ -28,6 +28,9 @@ spec:
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- scheduler
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- --leader-elect=true
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- --kubeconfig={{ kube_config_dir }}/kube-scheduler-kubeconfig.yaml
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{% if volume_cross_zone_attachment %}
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- --policy-config-file={{ kube_config_dir }}/kube-scheduler-policy.yaml
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{% endif %}
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- --profiling=false
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- --v={{ kube_log_level }}
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{% if kube_feature_gates %}
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@ -62,6 +65,11 @@ spec:
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- mountPath: "{{ kube_config_dir }}/kube-scheduler-kubeconfig.yaml"
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name: kubeconfig
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readOnly: true
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{% if volume_cross_zone_attachment %}
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- mountPath: "{{ kube_config_dir }}/kube-scheduler-policy.yaml"
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name: kube-scheduler-policy
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readOnly: true
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{% endif %}
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volumes:
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- name: ssl-certs-host
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hostPath:
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@ -77,3 +85,8 @@ spec:
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- name: kubeconfig
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hostPath:
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path: "{{ kube_config_dir }}/kube-scheduler-kubeconfig.yaml"
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{% if volume_cross_zone_attachment %}
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- name: kube-scheduler-policy
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hostPath:
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path: "{{ kube_config_dir }}/kube-scheduler-policy.yaml"
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{% endif %}
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