132 lines
3.7 KiB
Bash
Executable file
132 lines
3.7 KiB
Bash
Executable file
#!/bin/bash
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# Copyright 2015 The Kubernetes Authors.
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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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# Note: these functions override functions in the GCE configure-vm script
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# We include the GCE script first, and this one second.
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ensure-basic-networking() {
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:
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}
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ensure-packages() {
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apt-get-install curl
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# For reading kube_env.yaml
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apt-get-install python-yaml
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# TODO: Where to get safe_format_and_mount?
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mkdir -p /usr/share/google
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cd /usr/share/google
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download-or-bust "dc96f40fdc9a0815f099a51738587ef5a976f1da" https://raw.githubusercontent.com/GoogleCloudPlatform/compute-image-packages/82b75f314528b90485d5239ab5d5495cc22d775f/google-startup-scripts/usr/share/google/safe_format_and_mount
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chmod +x safe_format_and_mount
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}
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set-kube-env() {
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local kube_env_yaml="/etc/kubernetes/kube_env.yaml"
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# kube-env has all the environment variables we care about, in a flat yaml format
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eval "$(python -c '
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import pipes,sys,yaml
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for k,v in yaml.load(sys.stdin).iteritems():
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print("""readonly {var}={value}""".format(var = k, value = pipes.quote(str(v))))
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print("""export {var}""".format(var = k))
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' < """${kube_env_yaml}""")"
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}
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remove-docker-artifacts() {
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:
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}
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# Finds the master PD device
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find-master-pd() {
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if ( grep "/mnt/master-pd" /proc/mounts ); then
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echo "Master PD already mounted; won't remount"
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MASTER_PD_DEVICE=""
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return
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fi
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echo "Waiting for master pd to be attached"
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attempt=0
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while true; do
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echo Attempt "$(($attempt+1))" to check for /dev/xvdb
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if [[ -e /dev/xvdb ]]; then
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echo "Found /dev/xvdb"
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MASTER_PD_DEVICE="/dev/xvdb"
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break
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fi
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attempt=$(($attempt+1))
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sleep 1
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done
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# Mount the master PD as early as possible
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echo "/dev/xvdb /mnt/master-pd ext4 noatime 0 0" >> /etc/fstab
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}
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fix-apt-sources() {
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:
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}
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salt-master-role() {
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cat <<EOF >/etc/salt/minion.d/grains.conf
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grains:
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roles:
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- kubernetes-master
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cloud: aws
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EOF
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# If the kubelet on the master is enabled, give it the same CIDR range
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# as a generic node.
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if [[ ! -z "${KUBELET_APISERVER:-}" ]] && [[ ! -z "${KUBELET_CERT:-}" ]] && [[ ! -z "${KUBELET_KEY:-}" ]]; then
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cat <<EOF >>/etc/salt/minion.d/grains.conf
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kubelet_api_servers: '${KUBELET_APISERVER}'
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EOF
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else
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# If the kubelet is running disconnected from a master, give it a fixed
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# CIDR range.
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cat <<EOF >>/etc/salt/minion.d/grains.conf
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cbr-cidr: ${MASTER_IP_RANGE}
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EOF
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fi
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env-to-grains "runtime_config"
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env-to-grains "kube_user"
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}
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salt-node-role() {
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cat <<EOF >/etc/salt/minion.d/grains.conf
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grains:
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roles:
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- kubernetes-pool
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cloud: aws
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api_servers: '${API_SERVERS}'
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EOF
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# We set the hostname_override to the full EC2 private dns name
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# we'd like to use EC2 instance-id, but currently the kubelet health-check assumes the name
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# is resolvable, although that check should be going away entirely (#7092)
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if [[ -z "${HOSTNAME_OVERRIDE:-}" ]]; then
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HOSTNAME_OVERRIDE=`curl --silent curl http://169.254.169.254/2007-01-19/meta-data/local-hostname`
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fi
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env-to-grains "hostname_override"
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}
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function run-user-script() {
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# TODO(justinsb): Support user scripts on AWS
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# AWS doesn't have as rich a metadata service as GCE does
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# Maybe specify an env var that is the path to a script?
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:
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}
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