fef1ede240
It is for running nodes on Ubuntu image upto 14.04 LTS (Trusty). The change for running master on Ubuntu will be added later. The configuration consists of several upstart jobs, which is passed to node instances through GCE metadata and parsed by cloud-init.
156 lines
6.2 KiB
Bash
156 lines
6.2 KiB
Bash
#!/bin/bash
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# Copyright 2015 The Kubernetes Authors All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# A library of helper functions and constant for ubuntu os distro
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# The code and configuration is for running node instances on Ubuntu images.
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# The master is still on Debian. In addition, the configuration is based on
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# upstart, which is in Ubuntu upto 14.04 LTS (Trusty). Ubuntu 15.04 and above
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# replaced upstart with systemd as the init system. Consequently, the
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# configuration cannot work on these images.
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# $1: if 'true', we're building a master yaml, else a node
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function build-kube-env {
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local master=$1
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local file=$2
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rm -f ${file}
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# TODO(andyzheng0831): master node is still running with Debian image. Switch it
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# to Ubuntu trusty.
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if [[ "${master}" == "true" ]]; then
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cat >$file <<EOF
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KUBERNETES_MASTER: "true"
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ENV_TIMESTAMP: $(yaml-quote $(date -u +%Y-%m-%dT%T%z))
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INSTANCE_PREFIX: $(yaml-quote ${INSTANCE_PREFIX})
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NODE_INSTANCE_PREFIX: $(yaml-quote ${NODE_INSTANCE_PREFIX})
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CLUSTER_IP_RANGE: $(yaml-quote ${CLUSTER_IP_RANGE:-10.244.0.0/16})
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SERVER_BINARY_TAR_URL: $(yaml-quote ${SERVER_BINARY_TAR_URL})
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SERVER_BINARY_TAR_HASH: $(yaml-quote ${SERVER_BINARY_TAR_HASH})
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SALT_TAR_URL: $(yaml-quote ${SALT_TAR_URL})
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SALT_TAR_HASH: $(yaml-quote ${SALT_TAR_HASH})
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SERVICE_CLUSTER_IP_RANGE: $(yaml-quote ${SERVICE_CLUSTER_IP_RANGE})
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ALLOCATE_NODE_CIDRS: $(yaml-quote ${ALLOCATE_NODE_CIDRS:-false})
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ENABLE_CLUSTER_MONITORING: $(yaml-quote ${ENABLE_CLUSTER_MONITORING:-none})
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ENABLE_NODE_MONITORING: $(yaml-quote ${ENABLE_NODE_MONITORING:-false})
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ENABLE_CLUSTER_LOGGING: $(yaml-quote ${ENABLE_CLUSTER_LOGGING:-false})
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ENABLE_CLUSTER_UI: $(yaml-quote ${ENABLE_CLUSTER_UI:-false})
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ENABLE_NODE_LOGGING: $(yaml-quote ${ENABLE_NODE_LOGGING:-false})
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LOGGING_DESTINATION: $(yaml-quote ${LOGGING_DESTINATION:-})
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ELASTICSEARCH_LOGGING_REPLICAS: $(yaml-quote ${ELASTICSEARCH_LOGGING_REPLICAS:-})
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ENABLE_CLUSTER_DNS: $(yaml-quote ${ENABLE_CLUSTER_DNS:-false})
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DNS_REPLICAS: $(yaml-quote ${DNS_REPLICAS:-})
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DNS_SERVER_IP: $(yaml-quote ${DNS_SERVER_IP:-})
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DNS_DOMAIN: $(yaml-quote ${DNS_DOMAIN:-})
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KUBE_USER: $(yaml-quote ${KUBE_USER})
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KUBE_PASSWORD: $(yaml-quote ${KUBE_PASSWORD})
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KUBE_BEARER_TOKEN: $(yaml-quote ${KUBE_BEARER_TOKEN})
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KUBELET_TOKEN: $(yaml-quote ${KUBELET_TOKEN:-})
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KUBE_PROXY_TOKEN: $(yaml-quote ${KUBE_PROXY_TOKEN:-})
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ADMISSION_CONTROL: $(yaml-quote ${ADMISSION_CONTROL:-})
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MASTER_IP_RANGE: $(yaml-quote ${MASTER_IP_RANGE})
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KUBERNETES_MASTER_NAME: $(yaml-quote ${MASTER_NAME})
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KUBERNETES_CONTAINER_RUNTIME: $(yaml-quote ${CONTAINER_RUNTIME})
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RKT_VERSION: $(yaml-quote ${RKT_VERSION})
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CA_CERT: $(yaml-quote ${CA_CERT_BASE64})
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MASTER_CERT: $(yaml-quote ${MASTER_CERT_BASE64:-})
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MASTER_KEY: $(yaml-quote ${MASTER_KEY_BASE64:-})
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KUBECFG_CERT: $(yaml-quote ${KUBECFG_CERT_BASE64:-})
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KUBECFG_KEY: $(yaml-quote ${KUBECFG_KEY_BASE64:-})
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EOF
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else
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cat >>$file <<EOF
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ENV_TIMESTAMP="$(date -u +%Y-%m-%dT%T%z)"
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INSTANCE_PREFIX=${INSTANCE_PREFIX}
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NODE_INSTANCE_PREFIX=${NODE_INSTANCE_PREFIX}
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SERVER_BINARY_TAR_URL=${SERVER_BINARY_TAR_URL}
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SERVER_BINARY_TAR_HASH=${SERVER_BINARY_TAR_HASH}
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SALT_TAR_URL=${SALT_TAR_URL}
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SALT_TAR_HASH=${SALT_TAR_HASH}
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SERVICE_CLUSTER_IP_RANGE=${SERVICE_CLUSTER_IP_RANGE}
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ENABLE_CLUSTER_MONITORING=${ENABLE_CLUSTER_MONITORING:-none}
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ENABLE_NODE_MONITORING=${ENABLE_NODE_MONITORING:-false}
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ENABLE_CLUSTER_LOGGING=${ENABLE_CLUSTER_LOGGING:-false}
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ENABLE_NODE_LOGGING=${ENABLE_NODE_LOGGING:-false}
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LOGGING_DESTINATION=${LOGGING_DESTINATION:-}
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ELASTICSEARCH_LOGGING_REPLICAS=${ELASTICSEARCH_LOGGING_REPLICAS:-}
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ENABLE_CLUSTER_DNS=${ENABLE_CLUSTER_DNS:-false}
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DNS_REPLICAS=${DNS_REPLICAS:-}
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DNS_SERVER_IP=${DNS_SERVER_IP:-}
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DNS_DOMAIN=${DNS_DOMAIN:-}
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KUBELET_TOKEN=${KUBELET_TOKEN:-}
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KUBE_PROXY_TOKEN=${KUBE_PROXY_TOKEN:-}
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ADMISSION_CONTROL=${ADMISSION_CONTROL:-}
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MASTER_IP_RANGE=${MASTER_IP_RANGE}
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KUBERNETES_MASTER_NAME=${MASTER_NAME}
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ZONE=${ZONE}
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EXTRA_DOCKER_OPTS=${EXTRA_DOCKER_OPTS:-}
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PROJECT_ID=${PROJECT}
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CA_CERT=${CA_CERT_BASE64}
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KUBELET_CERT=${KUBELET_CERT_BASE64:-}
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KUBELET_KEY=${KUBELET_KEY_BASE64:-}
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EOF
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fi
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}
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# create-master-instance creates the master instance. If called with
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# an argument, the argument is used as the name to a reserved IP
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# address for the master. (In the case of upgrade/repair, we re-use
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# the same IP.)
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#
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# It requires a whole slew of assumed variables, partially due to to
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# the call to write-master-env. Listing them would be rather
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# futile. Instead, we list the required calls to ensure any additional
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# variables are set:
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# ensure-temp-dir
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# detect-project
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# get-bearer-token
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#
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# TODO(andyzheng0831): We are still running master on Debian.
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# Convert master node to use Ubuntu trusty image too.
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function create-master-instance {
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local address_opt=""
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[[ -n ${1:-} ]] && address_opt="--address ${1}"
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write-master-env
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gcloud compute instances create "${MASTER_NAME}" \
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${address_opt} \
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--project "${PROJECT}" \
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--zone "${ZONE}" \
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--machine-type "${MASTER_SIZE}" \
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--image-project="${MASTER_IMAGE_PROJECT}" \
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--image "${MASTER_IMAGE}" \
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--tags "${MASTER_TAG}" \
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--network "${NETWORK}" \
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--scopes "storage-ro,compute-rw" \
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--can-ip-forward \
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--metadata-from-file \
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"startup-script=${KUBE_ROOT}/cluster/gce/configure-vm.sh,kube-env=${KUBE_TEMP}/master-kube-env.yaml" \
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--disk "name=${MASTER_NAME}-pd,device-name=master-pd,mode=rw,boot=no,auto-delete=no"
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}
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# TODO(andyzheng0831): Make $1 required.
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# TODO(andyzheng0831): Document required vars (for this and call chain).
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# $1 version
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function create-node-instance-template {
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local suffix=""
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if [[ -n ${1:-} ]]; then
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suffix="-${1}"
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fi
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create-node-template "${NODE_INSTANCE_PREFIX}-template${suffix}" "${scope_flags[*]}" \
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"kube-env=${KUBE_TEMP}/node-kube-env.yaml" \
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"user-data=${KUBE_ROOT}/cluster/gce/trusty/node.yaml"
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}
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