Files
kubernetes/cluster/gce/templates/create-dynamic-salt-files.sh
Joe Beda 2fc02cb06a Quote strings in bash populated YAML files.
Quoting is hard.  When writing strings into YAML files, wrap them in single quotes.  Also escape any embedded single quotes in those strings via a double signle quote ('').
2014-12-16 16:13:46 -08:00

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Bash

#!/bin/bash
# Copyright 2014 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.
# Create the overlay files for the salt tree. We create these in a separate
# place so that we can blow away the rest of the salt configs on a kube-push and
# re-apply these.
mkdir -p /srv/salt-overlay/pillar
cat <<EOF >/srv/salt-overlay/pillar/cluster-params.sls
node_instance_prefix: '$(echo "$NODE_INSTANCE_PREFIX" | sed -e "s/'/''/g")'
portal_net: '$(echo "$PORTAL_NET" | sed -e "s/'/''/g")'
enable_node_monitoring: '$(echo "$ENABLE_NODE_MONITORING" | sed -e "s/'/''/g")'
enable_node_logging: '$(echo "$ENABLE_NODE_LOGGING" | sed -e "s/'/''/g")'
logging_destination: '$(echo "$LOGGING_DESTINATION" | sed -e "s/'/''/g")'
EOF
mkdir -p /srv/salt-overlay/salt/nginx
echo $MASTER_HTPASSWD > /srv/salt-overlay/salt/nginx/htpasswd
# Generate and distribute a shared secret (bearer token) to
# apiserver and kubelet so that kubelet can authenticate to
# apiserver to send events.
# This works on CoreOS, so it should work on a lot of distros.
kubelet_token=$(cat /dev/urandom | base64 | tr -d "=+/" | dd bs=32 count=1 2> /dev/null)
mkdir -p /srv/salt-overlay/salt/kube-apiserver
known_tokens_file="/srv/salt-overlay/salt/kube-apiserver/known_tokens.csv"
(umask u=rw,go= ; echo "$kubelet_token,kubelet,kubelet" > $known_tokens_file)
mkdir -p /srv/salt-overlay/salt/kubelet
kubelet_auth_file="/srv/salt-overlay/salt/kubelet/kubernetes_auth"
(umask u=rw,go= ; echo "{\"BearerToken\": \"$kubelet_token\", \"Insecure\": true }" > $kubelet_auth_file)