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Register master node as unschedulable

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Also refactor generation of kubelet args to not repeat args.
This commit is contained in:
Alexander Block 2016-12-15 10:37:14 +01:00
parent add7570a94
commit fe150d4e4d
2 changed files with 17 additions and 11 deletions
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27
roles/kubernetes/node/templates/kubelet.j2
View file

@ -12,21 +12,28 @@ KUBELET_ADDRESS="--address={{ ip | default("0.0.0.0") }}"
# KUBELET_PORT="--port=10250" # KUBELET_PORT="--port=10250"
# You may leave this blank to use the actual hostname # You may leave this blank to use the actual hostname
KUBELET_HOSTNAME="--hostname-override={{ ansible_hostname }}" KUBELET_HOSTNAME="--hostname-override={{ ansible_hostname }}"
# location of the api-server
{# Base kubelet args #}
{% set kubelet_args_base %}--pod-manifest-path={{ kube_manifest_dir }} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }}{% endset %} {% set kubelet_args_base %}--pod-manifest-path={{ kube_manifest_dir }} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }}{% endset %}
{# DNS settings for kubelet #}
{% if dns_setup|bool and skip_dnsmasq|bool %} {% if dns_setup|bool and skip_dnsmasq|bool %}
{% set kubelet_args_dns %}--cluster_dns={{ skydns_server }} --cluster_domain={{ dns_domain }} --resolv-conf={{ kube_resolv_conf }} {{ kubelet_args_base }}{% endset %} {% set kubelet_args_cluster_dns %}--cluster_dns={{ skydns_server }}{% endset %}
{% elif dns_setup|bool %} {% elif dns_setup|bool %}
{% set kubelet_args_dns %}--cluster_dns={{ dns_server }} --cluster_domain={{ dns_domain }} --resolv-conf={{ kube_resolv_conf }} {{ kubelet_args_base }}{% endset %} {% set kubelet_args_cluster_dns %}--cluster_dns={{ dns_server }}{% endset %}
{% else %} {% else %}
{% set kubelet_args_dns = kubelet_args_base %} {% set kubelet_args_cluster_dns %}{% endset %}
{% endif %} {% endif %}
{% if not standalone_kubelet|bool %} {% set kubelet_args_dns %}{{ kubelet_args_cluster_dns }} --cluster_domain={{ dns_domain }} --resolv-conf={{ kube_resolv_conf }}{% endset %}
{% set kubelet_args %}--kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --require-kubeconfig {{ kubelet_args_dns }}{% endset %}
{% else %} {# Location of the apiserver #}
{% set kubelet_args = kubelet_args_dns %} {% set kubelet_args_kubeconfig %}--kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --require-kubeconfig{% endset %}
{% if standalone_kubelet|bool %}
{# We are on a master-only host. Make the master unschedulable in this case. #}
{% set kubelet_args_kubeconfig %}{{ kubelet_args_kubeconfig }} --register-schedulable=false{% endset %}
{% endif %} {% endif %}
KUBELET_ARGS="{{ kubelet_args }}"
KUBELET_ARGS="{{ kubelet_args_base }} {{ kubelet_args_dns }} {{ kubelet_args_kubeconfig }}"
{% if kube_network_plugin is defined and kube_network_plugin in ["calico", "weave", "canal"] %} {% if kube_network_plugin is defined and kube_network_plugin in ["calico", "weave", "canal"] %}
KUBELET_NETWORK_PLUGIN="--network-plugin=cni --network-plugin-dir=/etc/cni/net.d" KUBELET_NETWORK_PLUGIN="--network-plugin=cni --network-plugin-dir=/etc/cni/net.d"
{% elif kube_network_plugin is defined and kube_network_plugin == "weave" %} {% elif kube_network_plugin is defined and kube_network_plugin == "weave" %}
@ -46,6 +53,6 @@ KUBELET_CLOUDPROVIDER=""
{% endif %} {% endif %}
{% if ansible_service_mgr in ["sysvinit","upstart"] %} {% if ansible_service_mgr in ["sysvinit","upstart"] %}
DAEMON_ARGS="$KUBE_LOGGING $KUBE_LOG_LEVEL $KUBE_ALLOW_PRIV $KUBELET_API_SERVER $KUBELET_ADDRESS \ DAEMON_ARGS="$KUBE_LOGGING $KUBE_LOG_LEVEL $KUBE_ALLOW_PRIV $KUBELET_API_SERVER $KUBELET_ADDRESS \
$KUBELET_HOSTNAME $KUBELET_REGISTER_NODE $KUBELET_ARGS $DOCKER_SOCKET $KUBELET_ARGS $KUBELET_NETWORK_PLUGIN \ $KUBELET_HOSTNAME $KUBELET_ARGS $DOCKER_SOCKET $KUBELET_ARGS $KUBELET_NETWORK_PLUGIN \
$KUBELET_CLOUDPROVIDER" $KUBELET_CLOUDPROVIDER"
{% endif %} {% endif %}

1
roles/kubernetes/node/templates/kubelet.service.j2
View file

@ -21,7 +21,6 @@ ExecStart={{ bin_dir }}/kubelet \
$KUBE_ALLOW_PRIV \ $KUBE_ALLOW_PRIV \
$KUBELET_ARGS \ $KUBELET_ARGS \
$DOCKER_SOCKET \ $DOCKER_SOCKET \
$KUBELET_REGISTER_NODE \
$KUBELET_NETWORK_PLUGIN \ $KUBELET_NETWORK_PLUGIN \
$KUBELET_CLOUDPROVIDER $KUBELET_CLOUDPROVIDER
ExecStartPre=-/usr/bin/docker rm -f kubelet ExecStartPre=-/usr/bin/docker rm -f kubelet