k3s/cluster/aws/templates/salt-minion.sh

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#!/bin/bash
# Copyright 2014 The Kubernetes Authors 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.
# Prepopulate the name of the Master
mkdir -p /etc/salt/minion.d
echo "master: $SALT_MASTER" > /etc/salt/minion.d/master.conf
# Turn on debugging for salt-minion
# echo "DAEMON_ARGS=\"\$DAEMON_ARGS --log-file-level=debug\"" > /etc/default/salt-minion
# Our minions will have a pool role to distinguish them from the master.
cat <<EOF >/etc/salt/minion.d/grains.conf
grains:
roles:
- kubernetes-pool
cbr-cidr: 10.123.45.0/30
cloud: aws
EOF
# We set the hostname_override to the full EC2 private dns name
# we'd like to use EC2 instance-id, but currently the kubelet health-check assumes the name
# is resolvable, although that check should be going away entirely (#7092)
if [[ -z "${HOSTNAME_OVERRIDE}" ]]; then
HOSTNAME_OVERRIDE=`curl --silent curl http://169.254.169.254/2007-01-19/meta-data/local-hostname`
fi
# Helper that sets a salt grain in grains.conf, if the upper-cased key is a non-empty env
function env_to_salt {
local key=$1
local env_key=`echo $key | tr '[:lower:]' '[:upper:]'`
local value=${!env_key}
if [[ -n "${value}" ]]; then
# Note this is yaml, so indentation matters
cat <<EOF >>/etc/salt/minion.d/grains.conf
${key}: '$(echo "${value}" | sed -e "s/'/''/g")'
EOF
fi
}
env_to_salt hostname_override
env_to_salt docker_opts
env_to_salt docker_root
env_to_salt kubelet_root
env_to_salt non_masquerade_cidr
install-salt
service salt-minion start