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Bring up a cluster using coreos image for worker nodes.
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#!/bin/bash | ||
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# Copyright 2015 Google Inc. All rights reserved. | ||
# | ||
# 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. | ||
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# A library of helper functions and constant for coreos os distro | ||
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# $1: if 'true', we're building a master yaml, else a node | ||
function build-kube-env { | ||
local master=$1 | ||
local file=$2 | ||
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rm -f ${file} | ||
# TODO(dawnchen): master node is still running with debian image | ||
if [[ "${master}" == "true" ]]; then | ||
cat >$file <<EOF | ||
ENV_TIMESTAMP: $(yaml-quote $(date -u +%Y-%m-%dT%T%z)) | ||
INSTANCE_PREFIX: $(yaml-quote ${INSTANCE_PREFIX}) | ||
NODE_INSTANCE_PREFIX: $(yaml-quote ${NODE_INSTANCE_PREFIX}) | ||
SERVER_BINARY_TAR_URL: $(yaml-quote ${SERVER_BINARY_TAR_URL}) | ||
SALT_TAR_URL: $(yaml-quote ${SALT_TAR_URL}) | ||
PORTAL_NET: $(yaml-quote ${PORTAL_NET}) | ||
ENABLE_CLUSTER_MONITORING: $(yaml-quote ${ENABLE_CLUSTER_MONITORING:-false}) | ||
ENABLE_NODE_MONITORING: $(yaml-quote ${ENABLE_NODE_MONITORING:-false}) | ||
ENABLE_CLUSTER_LOGGING: $(yaml-quote ${ENABLE_CLUSTER_LOGGING:-false}) | ||
ENABLE_NODE_LOGGING: $(yaml-quote ${ENABLE_NODE_LOGGING:-false}) | ||
LOGGING_DESTINATION: $(yaml-quote ${LOGGING_DESTINATION:-}) | ||
ELASTICSEARCH_LOGGING_REPLICAS: $(yaml-quote ${ELASTICSEARCH_LOGGING_REPLICAS:-}) | ||
ENABLE_CLUSTER_DNS: $(yaml-quote ${ENABLE_CLUSTER_DNS:-false}) | ||
DNS_REPLICAS: $(yaml-quote ${DNS_REPLICAS:-}) | ||
DNS_SERVER_IP: $(yaml-quote ${DNS_SERVER_IP:-}) | ||
DNS_DOMAIN: $(yaml-quote ${DNS_DOMAIN:-}) | ||
KUBE_BEARER_TOKEN: $(yaml-quote ${KUBE_BEARER_TOKEN}) | ||
KUBELET_TOKEN: $(yaml-quote ${KUBELET_TOKEN:-}) | ||
KUBE_PROXY_TOKEN: $(yaml-quote ${KUBE_PROXY_TOKEN:-}) | ||
ADMISSION_CONTROL: $(yaml-quote ${ADMISSION_CONTROL:-}) | ||
MASTER_IP_RANGE: $(yaml-quote ${MASTER_IP_RANGE}) | ||
EOF | ||
else | ||
cat >>$file <<EOF | ||
ENV_TIMESTAMP=$(yaml-quote $(date -u +%Y-%m-%dT%T%z)) | ||
INSTANCE_PREFIX=$(yaml-quote ${INSTANCE_PREFIX}) | ||
NODE_INSTANCE_PREFIX=$(yaml-quote ${NODE_INSTANCE_PREFIX}) | ||
SERVER_BINARY_TAR_URL=$(yaml-quote ${SERVER_BINARY_TAR_URL}) | ||
PORTAL_NET=$(yaml-quote ${PORTAL_NET}) | ||
ENABLE_CLUSTER_MONITORING=$(yaml-quote ${ENABLE_CLUSTER_MONITORING:-false}) | ||
ENABLE_NODE_MONITORING=$(yaml-quote ${ENABLE_NODE_MONITORING:-false}) | ||
ENABLE_CLUSTER_LOGGING=$(yaml-quote ${ENABLE_CLUSTER_LOGGING:-false}) | ||
ENABLE_NODE_LOGGING=$(yaml-quote ${ENABLE_NODE_LOGGING:-false}) | ||
LOGGING_DESTINATION=$(yaml-quote ${LOGGING_DESTINATION:-}) | ||
ELASTICSEARCH_LOGGING_REPLICAS=$(yaml-quote ${ELASTICSEARCH_LOGGING_REPLICAS:-}) | ||
ENABLE_CLUSTER_DNS=$(yaml-quote ${ENABLE_CLUSTER_DNS:-false}) | ||
DNS_REPLICAS=$(yaml-quote ${DNS_REPLICAS:-}) | ||
DNS_SERVER_IP=$(yaml-quote ${DNS_SERVER_IP:-}) | ||
DNS_DOMAIN=$(yaml-quote ${DNS_DOMAIN:-}) | ||
KUBE_BEARER_TOKEN=$(yaml-quote ${KUBE_BEARER_TOKEN}) | ||
KUBELET_TOKEN=$(yaml-quote ${KUBELET_TOKEN:-}) | ||
KUBE_PROXY_TOKEN=$(yaml-quote ${KUBE_PROXY_TOKEN:-}) | ||
ADMISSION_CONTROL=$(yaml-quote ${ADMISSION_CONTROL:-}) | ||
MASTER_IP_RANGE=$(yaml-quote ${MASTER_IP_RANGE}) | ||
KUBERNETES_MASTER_NAME=$(yaml-quote ${MASTER_NAME}) | ||
ZONE=$(yaml-quote ${ZONE}) | ||
EXTRA_DOCKER_OPTS=$(yaml-quote ${EXTRA_DOCKER_OPTS}) | ||
ENABLE_DOCKER_REGISTRY_CACHE=$(yaml-quote ${ENABLE_DOCKER_REGISTRY_CACHE:-false}) | ||
PROJECT_ID=$(yaml-quote ${PROJECT}) | ||
EOF | ||
fi | ||
} | ||
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# create-master-instance creates the master instance. If called with | ||
# an argument, the argument is used as the name to a reserved IP | ||
# address for the master. (In the case of upgrade/repair, we re-use | ||
# the same IP.) | ||
# | ||
# It requires a whole slew of assumed variables, partially due to to | ||
# the call to write-master-env. Listing them would be rather | ||
# futile. Instead, we list the required calls to ensure any additional | ||
# variables are set: | ||
# ensure-temp-dir | ||
# detect-project | ||
# get-bearer-token | ||
# | ||
# TODO(dawnchen): Convert master node to use coreos image too | ||
function create-master-instance { | ||
local address_opt="" | ||
[[ -n ${1:-} ]] && address_opt="--address ${1}" | ||
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write-master-env | ||
gcloud compute instances create "${MASTER_NAME}" \ | ||
${address_opt} \ | ||
--project "${PROJECT}" \ | ||
--zone "${ZONE}" \ | ||
--machine-type "${MASTER_SIZE}" \ | ||
--image-project="${MASTER_IMAGE_PROJECT}" \ | ||
--image "${MASTER_IMAGE}" \ | ||
--tags "${MASTER_TAG}" \ | ||
--network "${NETWORK}" \ | ||
--scopes "storage-ro" "compute-rw" \ | ||
--can-ip-forward \ | ||
--metadata-from-file \ | ||
"startup-script=${KUBE_ROOT}/cluster/gce/debian/configure-vm.sh" \ | ||
"kube-env=${KUBE_TEMP}/master-kube-env.yaml" \ | ||
--disk name="${MASTER_NAME}-pd" device-name=master-pd mode=rw boot=no auto-delete=no | ||
} | ||
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# TODO(dawnchen): Check $CONTAINER_RUNTIME to decide which | ||
# cloud_config yaml file should be passed | ||
function create-node-instance-template { | ||
create-node-template "${NODE_INSTANCE_PREFIX}-template" "${scope_flags[*]}" \ | ||
"kube-env=${KUBE_TEMP}/node-kube-env.yaml" \ | ||
"user-data=${KUBE_ROOT}/cluster/gce/coreos/node.yaml" | ||
} |
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#cloud-config | ||
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write_files: | ||
- path: /run/configure-hostname.sh | ||
permissions: "0755" | ||
content: | | ||
#!/bin/bash -e | ||
set -x | ||
source /etc/kube-env | ||
hostnamectl set-hostname $(hostname | cut -f1 -d.) | ||
- path: /run/setup-auth.sh | ||
permissions: "0755" | ||
content: | | ||
#!/bin/bash -e | ||
set -x | ||
source /etc/kube-env | ||
/usr/bin/mkdir -p /var/lib/kubelet | ||
/bin/echo {\"BearerToken\": \"${KUBE_BEARER_TOKEN}\", \"Insecure\": true } > /var/lib/kubelet/kubernetes_auth | ||
- path: /run/config-kube-proxy.sh | ||
permissions: "0755" | ||
content: | | ||
#!/bin/bash -e | ||
set -x | ||
source /etc/kube-env | ||
/usr/bin/mkdir -p /var/lib/kube-proxy | ||
cat > /var/lib/kube-proxy/kubeconfig << EOF | ||
apiVersion: v1 | ||
kind: Config | ||
users: | ||
- name: kube-proxy | ||
user: | ||
token: ${KUBE_PROXY_TOKEN} | ||
clusters: | ||
- name: local | ||
cluster: | ||
insecure-skip-tls-verify: true | ||
contexts: | ||
- context: | ||
cluster: local | ||
user: kube-proxy | ||
name: service-account-context | ||
current-context: service-account-context | ||
EOF | ||
coreos: | ||
units: | ||
- name: kube-env.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Fetch kubernetes-node-environment | ||
Requires=network-online.target | ||
After=network-online.target | ||
[Service] | ||
Type=oneshot | ||
RemainAfterExit=yes | ||
ExecStart=/usr/bin/curl --fail --silent --show-error \ | ||
-H "X-Google-Metadata-Request: True" \ | ||
-o /etc/kube-env \ | ||
http://metadata.google.internal/computeMetadata/v1/instance/attributes/kube-env | ||
- name: kubernetes-install-rkt.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Fetch Rocket | ||
Documentation=http://github.com/coreos/rkt | ||
Requires=network-online.target | ||
After=network-online.target | ||
[Service] | ||
EnvironmentFile=/etc/kube-env | ||
ExecStartPre=/usr/bin/mkdir -p /opt/rkt | ||
ExecStartPre=/usr/bin/wget \ | ||
-O /opt/rkt/rkt-v0.5.4.tar.gz \ | ||
https://github.com/coreos/rkt/releases/download/v0.5.4/rkt-v0.5.4.tar.gz | ||
ExecStartPre=/usr/bin/tar xzvf /opt/rkt/rkt-v0.5.4.tar.gz -C /opt --overwrite | ||
ExecStart=/bin/systemd-run rkt metadata-service | ||
- name: kubernetes-install-minion.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Install Kubernetes Server | ||
Requires=network-online.target | ||
After=network-online.target | ||
Requires=kube-env.service | ||
After=kube-env.service | ||
[Service] | ||
Type=oneshot | ||
RemainAfterExit=yes | ||
EnvironmentFile=/etc/kube-env | ||
ExecStartPre=/usr/bin/mkdir -p /opt/kubernetes/pkg | ||
ExecStartPre=/usr/bin/curl --location --create-dirs --output /opt/kubernetes/pkg/kubernetes-server-linux-amd64.tar.gz ${SERVER_BINARY_TAR_URL} | ||
ExecStart=/usr/bin/tar xf /opt/kubernetes/pkg/kubernetes-server-linux-amd64.tar.gz -C /opt --overwrite | ||
- name: kubernetes-preparation.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Configure Node For Kubernetes service | ||
Requires=kubernetes-install-minion.service | ||
After=kubernetes-install-minion.service | ||
Requires=kubernetes-install-rkt.service | ||
After=kubernetes-install-rkt.service | ||
[Service] | ||
Type=oneshot | ||
RemainAfterExit=yes | ||
EnvironmentFile=/etc/kube-env | ||
# TODO(dawnchen): Push this to separate write-files | ||
ExecStart=/run/configure-hostname.sh | ||
- name: kubelet.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Run Kubelet service | ||
Requires=kubernetes-preparation.service | ||
After=kubernetes-preparation.service | ||
[Service] | ||
EnvironmentFile=/etc/kube-env | ||
ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/manifests | ||
ExecStartPre=/run/setup-auth.sh | ||
ExecStart=/opt/kubernetes/server/bin/kubelet \ | ||
--api_servers=https://kubernetes-master.c.${PROJECT_ID}.internal \ | ||
--config=/etc/kubernetes/manifests \ | ||
--allow_privileged=False \ | ||
--v=2 \ | ||
--cluster_dns=10.0.0.10 \ | ||
--cluster_domain=kubernetes.local \ | ||
--logtostderr=true | ||
Restart=always | ||
RestartSec=10 | ||
- name: kube-proxy.service | ||
command: start | ||
content: | | ||
[Unit] | ||
Description=Start Kube-proxy service as Daemon | ||
Requires=kubernetes-install-minion.service | ||
After=kubernetes-install-minion.service | ||
Requires=kubernetes-install-rkt.service | ||
After=kubernetes-install-rkt.service | ||
[Service] | ||
EnvironmentFile=/etc/kube-env | ||
ExecStartPre=/run/config-kube-proxy.sh | ||
ExecStart=/opt/kubernetes/server/bin/kube-proxy \ | ||
--master=https://kubernetes-master.c.${PROJECT_ID}.internal \ | ||
--kubeconfig=/var/lib/kube-proxy/kubeconfig \ | ||
--v=2 \ | ||
--logtostderr=true | ||
Restart=always | ||
RestartSec=10 | ||
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