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Merge kube-dns templates into a single file

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This commit is contained in:
Zihong Zheng
2017-09-28 19:29:14 -07:00
parent f369c1af59
commit db8f9ddcec
18 changed files with 153 additions and 219 deletions
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2
cluster/addons/dns-horizontal-autoscaler/dns-horizontal-autoscaler.yaml
View File

@@ -40,7 +40,7 @@ spec:
- /cluster-proportional-autoscaler
- --namespace=kube-system
- --configmap=kube-dns-autoscaler
# Should keep target in sync with cluster/addons/dns/kubedns-controller.yaml.base
# Should keep target in sync with cluster/addons/dns/kube-dns.yaml.base
- --target=Deployment/kube-dns
# When cluster is using large nodes(with more cores), "coresPerReplica" should dominate.
# If using small nodes, "nodesPerReplica" should dominate.

2
cluster/addons/dns/Makefile
View File

@@ -29,6 +29,6 @@ all: transform
%.sed: %.base
sed -f transforms2sed.sed $< | sed s/__SOURCE_FILENAME__/$</g > $@
transform: kubedns-controller.yaml.in kubedns-svc.yaml.in kubedns-controller.yaml.sed kubedns-svc.yaml.sed
transform: kube-dns.yaml.in kube-dns.yaml.sed
.PHONY: transform

16
cluster/addons/dns/README.md
View File

@@ -23,11 +23,10 @@ will be clobbered, in addition the replicas count for kube-dns Deployment will
be reset to 1. See [Cluster add-ons README](../README.md) and
[#36411](https://github.com/kubernetes/kubernetes/issues/36411) for reference.
## kube-dns Deployment and Service templates
## kube-dns addon templates
This directory contains the base UNDERSCORE templates that can be used to
generate the kubedns-controller.yaml.in and kubedns.controller.yaml.in needed in
Salt format.
generate the kube-dns.yaml.in needed in Salt format.
Due to a varied preference in templating language choices, the transform
Makefile in this directory should be enhanced to generate all required formats
@@ -38,7 +37,7 @@ that supply values for your new parameter. Here is one way you might find those
scripts:
```
cd kubernetes && git grep 'kubedns-controller.yaml'
cd kubernetes && git grep 'kube-dns.yaml'
```
### Base Template files
@@ -47,22 +46,19 @@ These are the authoritative base templates.
Run 'make' to generate the Salt and Sed yaml templates from these.
```
kubedns-controller.yaml.base
kubedns-svc.yaml.base
kube-dns.yaml.base
```
### Generated Salt files
```
kubedns-controller.yaml.in
kubedns-svc.yaml.in
kube-dns.yaml.in
```
### Generated Sed files
```
kubedns-controller.yaml.sed
kubedns-svc.yaml.sed
kube-dns.yaml.sed
```
[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/cluster/addons/dns/README.md?pixel)]()

39
cluster/addons/dns/kubedns-controller.yaml.base → cluster/addons/dns/kube-dns.yaml.base
View File

@@ -17,6 +17,45 @@
# __MACHINE_GENERATED_WARNING__
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: __PILLAR__DNS__SERVER__
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: kube-dns
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
---
apiVersion: v1
kind: ConfigMap
metadata:
name: kube-dns
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: EnsureExists
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:

41
cluster/addons/dns/kubedns-controller.yaml.in → cluster/addons/dns/kube-dns.yaml.in
View File

@@ -15,8 +15,47 @@
# Should keep target in cluster/addons/dns-horizontal-autoscaler/dns-horizontal-autoscaler.yaml
# in sync with this file.
# Warning: This is a file generated from the base underscore template file: kubedns-controller.yaml.base
# Warning: This is a file generated from the base underscore template file: kube-dns.yaml.base
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: {{ pillar['dns_server'] }}
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: kube-dns
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
---
apiVersion: v1
kind: ConfigMap
metadata:
name: kube-dns
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: EnsureExists
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:

41
cluster/addons/dns/kubedns-controller.yaml.sed → cluster/addons/dns/kube-dns.yaml.sed
View File

@@ -15,8 +15,47 @@
# Should keep target in cluster/addons/dns-horizontal-autoscaler/dns-horizontal-autoscaler.yaml
# in sync with this file.
# Warning: This is a file generated from the base underscore template file: kubedns-controller.yaml.base
# Warning: This is a file generated from the base underscore template file: kube-dns.yaml.base
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: $DNS_SERVER_IP
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: kube-dns
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
---
apiVersion: v1
kind: ConfigMap
metadata:
name: kube-dns
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: EnsureExists
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:

21
cluster/addons/dns/kubedns-cm.yaml
View File

@@ -1,21 +0,0 @@
# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: ConfigMap
metadata:
name: kube-dns
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: EnsureExists

8
cluster/addons/dns/kubedns-sa.yaml
View File

@@ -1,8 +0,0 @@
apiVersion: v1
kind: ServiceAccount
metadata:
name: kube-dns
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile

37
cluster/addons/dns/kubedns-svc.yaml.base
View File

@@ -1,37 +0,0 @@
# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# __MACHINE_GENERATED_WARNING__
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: __PILLAR__DNS__SERVER__
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP

37
cluster/addons/dns/kubedns-svc.yaml.in
View File

@@ -1,37 +0,0 @@
# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Warning: This is a file generated from the base underscore template file: kubedns-svc.yaml.base
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: {{ pillar['dns_server'] }}
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP

37
cluster/addons/dns/kubedns-svc.yaml.sed
View File

@@ -1,37 +0,0 @@
# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Warning: This is a file generated from the base underscore template file: kubedns-svc.yaml.base
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: $DNS_SERVER_IP
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP

16
cluster/centos/deployAddons.sh
View File

@@ -26,21 +26,19 @@ export KUBE_CONFIG_FILE=${KUBE_CONFIG_FILE:-${KUBE_ROOT}/cluster/centos/config-d
function deploy_dns {
echo "Deploying DNS on Kubernetes"
sed -e "s/\\\$DNS_DOMAIN/${DNS_DOMAIN}/g" "${KUBE_ROOT}/cluster/addons/dns/kubedns-controller.yaml.sed" > kubedns-controller.yaml
sed -e "s/\\\$DNS_SERVER_IP/${DNS_SERVER_IP}/g" "${KUBE_ROOT}/cluster/addons/dns/kubedns-svc.yaml.sed" > kubedns-svc.yaml
cp "${KUBE_ROOT}/cluster/addons/dns/kube-dns.yaml.sed" kube-dns.yaml
sed -i -e "s/\\\$DNS_DOMAIN/${DNS_DOMAIN}/g" kube-dns.yaml
sed -i -e "s/\\\$DNS_SERVER_IP/${DNS_SERVER_IP}/g" kube-dns.yaml
KUBEDNS=`eval "${KUBECTL} get services --namespace=kube-system | grep kube-dns | cat"`
if [ ! "$KUBEDNS" ]; then
# use kubectl to create kube-dns deployment and service
${KUBECTL} --namespace=kube-system create -f kubedns-sa.yaml
${KUBECTL} --namespace=kube-system create -f kubedns-cm.yaml
${KUBECTL} --namespace=kube-system create -f kubedns-controller.yaml
${KUBECTL} --namespace=kube-system create -f kubedns-svc.yaml
# use kubectl to create kube-dns addon
${KUBECTL} --namespace=kube-system create -f kube-dns.yaml
echo "Kube-dns deployment and service is successfully deployed."
echo "Kube-dns addon is successfully deployed."
else
echo "Kube-dns deployment and service is already deployed. Skipping."
echo "Kube-dns addon is already deployed. Skipping."
fi
echo

10
cluster/gce/container-linux/configure-helper.sh
View File

@@ -1295,13 +1295,11 @@ function start-kube-addons {
fi
if [[ "${ENABLE_CLUSTER_DNS:-}" == "true" ]]; then
setup-addon-manifests "addons" "dns"
local -r dns_controller_file="${dst_dir}/dns/kubedns-controller.yaml"
local -r dns_svc_file="${dst_dir}/dns/kubedns-svc.yaml"
mv "${dst_dir}/dns/kubedns-controller.yaml.in" "${dns_controller_file}"
mv "${dst_dir}/dns/kubedns-svc.yaml.in" "${dns_svc_file}"
local -r kubedns_file="${dst_dir}/dns/kube-dns.yaml"
mv "${dst_dir}/dns/kube-dns.yaml.in" "${kubedns_file}"
# Replace the salt configurations with variable values.
sed -i -e "s@{{ *pillar\['dns_domain'\] *}}@${DNS_DOMAIN}@g" "${dns_controller_file}"
sed -i -e "s@{{ *pillar\['dns_server'\] *}}@${DNS_SERVER_IP}@g" "${dns_svc_file}"
sed -i -e "s@{{ *pillar\['dns_domain'\] *}}@${DNS_DOMAIN}@g" "${kubedns_file}"
sed -i -e "s@{{ *pillar\['dns_server'\] *}}@${DNS_SERVER_IP}@g" "${kubedns_file}"
if [[ "${ENABLE_DNS_HORIZONTAL_AUTOSCALER:-}" == "true" ]]; then
setup-addon-manifests "addons" "dns-horizontal-autoscaler"

10
cluster/gce/gci/configure-helper.sh
View File

@@ -1794,13 +1794,11 @@ function start-kube-addons {
fi
if [[ "${ENABLE_CLUSTER_DNS:-}" == "true" ]]; then
setup-addon-manifests "addons" "dns"
local -r dns_controller_file="${dst_dir}/dns/kubedns-controller.yaml"
local -r dns_svc_file="${dst_dir}/dns/kubedns-svc.yaml"
mv "${dst_dir}/dns/kubedns-controller.yaml.in" "${dns_controller_file}"
mv "${dst_dir}/dns/kubedns-svc.yaml.in" "${dns_svc_file}"
local -r kubedns_file="${dst_dir}/dns/kube-dns.yaml"
mv "${dst_dir}/dns/kube-dns.yaml.in" "${kubedns_file}"
# Replace the salt configurations with variable values.
sed -i -e "s@{{ *pillar\['dns_domain'\] *}}@${DNS_DOMAIN}@g" "${dns_controller_file}"
sed -i -e "s@{{ *pillar\['dns_server'\] *}}@${DNS_SERVER_IP}@g" "${dns_svc_file}"
sed -i -e "s@{{ *pillar\['dns_domain'\] *}}@${DNS_DOMAIN}@g" "${kubedns_file}"
sed -i -e "s@{{ *pillar\['dns_server'\] *}}@${DNS_SERVER_IP}@g" "${kubedns_file}"
if [[ "${ENABLE_DNS_HORIZONTAL_AUTOSCALER:-}" == "true" ]]; then
setup-addon-manifests "addons" "dns-horizontal-autoscaler"

5
cluster/libvirt-coreos/config-default.sh
View File

@@ -65,10 +65,7 @@ ENABLE_CLUSTER_REGISTRY="${KUBE_ENABLE_CLUSTER_REGISTRY:-true}"
ENABLE_DNS_HORIZONTAL_AUTOSCALER="${KUBE_ENABLE_DNS_HORIZONTAL_AUTOSCALER:-false}"
#Generate dns files
sed -f "${KUBE_ROOT}/cluster/addons/dns/transforms2sed.sed" < "${KUBE_ROOT}/cluster/addons/dns/kubedns-controller.yaml.base" | sed -f "${KUBE_ROOT}/cluster/libvirt-coreos/forShellEval.sed" > "${KUBE_ROOT}/cluster/libvirt-coreos/kubedns-controller.yaml"
sed -f "${KUBE_ROOT}/cluster/addons/dns/transforms2sed.sed" < "${KUBE_ROOT}/cluster/addons/dns/kubedns-svc.yaml.base" | sed -f "${KUBE_ROOT}/cluster/libvirt-coreos/forShellEval.sed" > "${KUBE_ROOT}/cluster/libvirt-coreos/kubedns-svc.yaml"
cp "${KUBE_ROOT}/cluster/addons/dns/kubedns-sa.yaml" "${KUBE_ROOT}/cluster/libvirt-coreos/kubedns-sa.yaml"
cp "${KUBE_ROOT}/cluster/addons/dns/kubedns-cm.yaml" "${KUBE_ROOT}/cluster/libvirt-coreos/kubedns-cm.yaml"
sed -f "${KUBE_ROOT}/cluster/addons/dns/transforms2sed.sed" < "${KUBE_ROOT}/cluster/addons/dns/kube-dns.yaml.base" | sed -f "${KUBE_ROOT}/cluster/libvirt-coreos/forShellEval.sed" > "${KUBE_ROOT}/cluster/libvirt-coreos/kube-dns.yaml"
#Generate registry files

5
cluster/libvirt-coreos/util.sh
View File

@@ -217,10 +217,7 @@ function initialize-pool {
mkdir -p "$POOL_PATH/kubernetes/addons"
if [[ "$ENABLE_CLUSTER_DNS" == "true" ]]; then
render-template "$ROOT/namespace.yaml" > "$POOL_PATH/kubernetes/addons/namespace.yaml"
render-template "$ROOT/kubedns-svc.yaml" > "$POOL_PATH/kubernetes/addons/kubedns-svc.yaml"
render-template "$ROOT/kubedns-controller.yaml" > "$POOL_PATH/kubernetes/addons/kubedns-controller.yaml"
render-template "$ROOT/kubedns-sa.yaml" > "$POOL_PATH/kubernetes/addons/kubedns-sa.yaml"
render-template "$ROOT/kubedns-cm.yaml" > "$POOL_PATH/kubernetes/addons/kubedns-cm.yaml"
render-template "$ROOT/kube-dns.yaml" > "$POOL_PATH/kubernetes/addons/kube-dns.yaml"
fi
virsh pool-refresh $POOL

28
cluster/saltbase/salt/kube-addons/init.sls
View File

@@ -85,37 +85,13 @@ addon-dir-create:
{% endif %}
{% if pillar.get('enable_cluster_dns', '').lower() == 'true' %}
/etc/kubernetes/addons/dns/kubedns-svc.yaml:
/etc/kubernetes/addons/dns/kube-dns.yaml:
file.managed:
- source: salt://kube-addons/dns/kubedns-svc.yaml.in
- source: salt://kube-addons/dns/kube-dns.yaml.in
- template: jinja
- group: root
- dir_mode: 755
- makedirs: True
/etc/kubernetes/addons/dns/kubedns-controller.yaml:
file.managed:
- source: salt://kube-addons/dns/kubedns-controller.yaml.in
- template: jinja
- group: root
- dir_mode: 755
- makedirs: True
/etc/kubernetes/addons/dns/kubedns-sa.yaml:
file.managed:
- source: salt://kube-addons/dns/kubedns-sa.yaml
- user: root
- group: root
- file_mode: 644
- makedirs: True
/etc/kubernetes/addons/dns/kubedns-cm.yaml:
file.managed:
- source: salt://kube-addons/dns/kubedns-cm.yaml
- user: root
- group: root
- file_mode: 644
- makedirs: True
{% endif %}
{% if pillar.get('enable_dns_horizontal_autoscaler', '').lower() == 'true'

17
hack/local-up-cluster.sh
View File

@@ -755,18 +755,15 @@ EOF
function start_kubedns {
if [[ "${ENABLE_CLUSTER_DNS}" = true ]]; then
echo "Creating kube-system namespace"
sed -e "s/{{ pillar\['dns_domain'\] }}/${DNS_DOMAIN}/g" "${KUBE_ROOT}/cluster/addons/dns/kubedns-controller.yaml.in" >| kubedns-deployment.yaml
sed -e "s/{{ pillar\['dns_server'\] }}/${DNS_SERVER_IP}/g" "${KUBE_ROOT}/cluster/addons/dns/kubedns-svc.yaml.in" >| kubedns-svc.yaml
cp "${KUBE_ROOT}/cluster/addons/dns/kube-dns.yaml.in" kube-dns.yaml
sed -i -e "s/{{ pillar\['dns_domain'\] }}/${DNS_DOMAIN}/g" kube-dns.yaml
sed -i -e "s/{{ pillar\['dns_server'\] }}/${DNS_SERVER_IP}/g" kube-dns.yaml
# TODO update to dns role once we have one.
# use kubectl to create kubedns deployment and service
${KUBECTL} --kubeconfig="${CERT_DIR}/admin.kubeconfig" --namespace=kube-system create -f ${KUBE_ROOT}/cluster/addons/dns/kubedns-sa.yaml
${KUBECTL} --kubeconfig="${CERT_DIR}/admin.kubeconfig" --namespace=kube-system create -f ${KUBE_ROOT}/cluster/addons/dns/kubedns-cm.yaml
${KUBECTL} --kubeconfig="${CERT_DIR}/admin.kubeconfig" --namespace=kube-system create -f kubedns-deployment.yaml
${KUBECTL} --kubeconfig="${CERT_DIR}/admin.kubeconfig" --namespace=kube-system create -f kubedns-svc.yaml
echo "Kube-dns deployment and service successfully deployed."
rm kubedns-deployment.yaml kubedns-svc.yaml
# use kubectl to create kubedns addon
${KUBECTL} --kubeconfig="${CERT_DIR}/admin.kubeconfig" --namespace=kube-system create -f kube-dns.yaml
echo "Kube-dns addon successfully deployed."
rm kube-dns.yaml
fi
}