kubespray/roles/kubernetes/master/templates/kube-apiserver.j2

###
# kubernetes system config
#
# The following values are used to configure the kube-apiserver

{% if ansible_service_mgr in ["sysvinit","upstart"] %}
# Logging directory
KUBE_LOGGING="--log-dir={{ kube_log_dir }} --logtostderr=true"
{% else %}
# logging to stderr means we get it in the systemd journal
KUBE_LOGGING="--logtostderr=true"
{% endif %}

# Apiserver Log level, 0 is debug
KUBE_LOG_LEVEL="--v={{ kube_log_level | default('2') }}"

# Should this cluster be allowed to run privileged docker containers
KUBE_ALLOW_PRIV="--allow_privileged=true"

# The port on the local server to listen on.
KUBE_API_PORT="--insecure-port={{kube_apiserver_insecure_port}} --secure-port={{ kube_apiserver_port }}"

# Insecure API address (default is localhost)
KUBE_API_INSECURE_BIND="--insecure-bind-address={{ kube_apiserver_insecure_bind_address | default('127.0.0.1') }}"

# Address range to use for services
KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range={{ kube_service_addresses }}"

# Location of the etcd cluster
KUBE_ETCD_SERVERS="--etcd_servers={% for host in groups['etcd'] %}http://{{ hostvars[host]['access_ip'] | default(hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address'])) }}:2379{% if not loop.last %},{% endif %}{% endfor %}"

# Bind address for secure endpoint
KUBE_API_ADDRESS="--bind-address={{ ip | default(ansible_default_ipv4.address) }}"

# default admission control policies
KUBE_ADMISSION_CONTROL="--admission_control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"

# RUNTIME API CONFIGURATION (e.g. enable extensions)
KUBE_RUNTIME_CONFIG="{% if kube_api_runtime_config is defined %}{% for conf in kube_api_runtime_config %}--runtime-config={{ conf }} {% endfor %}{% endif %}"

# TLS CONFIGURATION
KUBE_TLS_CONFIG="--tls_cert_file={{ kube_cert_dir }}/apiserver.pem --tls_private_key_file={{ kube_cert_dir }}/apiserver-key.pem --client_ca_file={{ kube_cert_dir }}/ca.pem"

# Add you own!
KUBE_API_ARGS="--token_auth_file={{ kube_token_dir }}/known_tokens.csv --basic-auth-file={{ kube_users_dir }}/known_users.csv --service_account_key_file={{ kube_cert_dir }}/apiserver-key.pem --advertise-address={{ ip | default(ansible_default_ipv4.address) }}"

{% if cloud_provider is defined and cloud_provider == "openstack" %}
KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config"
{% else %}
{# TODO: gce and aws don't need the cloud provider to be set? #}
KUBELET_CLOUDPROVIDER=""
{% endif %}

{% if ansible_service_mgr in ["sysvinit","upstart"] %}
DAEMON_ARGS="$KUBE_LOGGING $KUBE_LOG_LEVEL $KUBE_ALLOW_PRIV $KUBE_API_PORT $KUBE_API_INSECURE_BIND \
$KUBE_SERVICE_ADDRESSES $KUBE_ETCD_SERVERS $KUBE_ADMISSION_CONTROL $KUBE_RUNTIME_CONFIG \
$KUBE_TLS_CONFIG $KUBE_API_ARGS $KUBELET_CLOUDPROVIDER"
{% endif %}