42 lines
1.8 KiB
Bash
Executable File
42 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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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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set -xe
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hosts=(`kubectl get nodes -o wide | awk '{print $1}' | sed -e '1d'`)
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hosts_ips=(`kubectl get nodes -o wide | awk '{print $6}' | sed -e '1d'`)
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export USERNAME=${USERNAME:-"hostconfig"}
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export PASSWORD=${PASSWORD:-"hostconfig"}
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# Installing openssl, sshpass and jq modules
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sudo apt-get install -y openssl sshpass jq
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ENCRYPTED_PASSWORD=`openssl passwd -crypt $PASSWORD`
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# Configuring SSH on Kubernetes nodes
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mkdir -p ssh
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for i in "${!hosts[@]}"
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do
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sudo docker exec ${hosts[i]} apt-get update
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sudo docker exec ${hosts[i]} apt-get install -y sudo openssh-server
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sudo docker exec ${hosts[i]} service sshd start
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sudo docker exec ${hosts[i]} useradd -m -p $ENCRYPTED_PASSWORD -s /bin/bash $USERNAME
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sudo docker exec ${hosts[i]} bash -c "echo '$USERNAME ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers.d/hostconfig"
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printf 'Working on host %s with Indexs and having IP %s\n' "${hosts[i]}" "$i" "${hosts_ips[i]}"
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ssh-keygen -q -t rsa -N '' -f ssh/${hosts[i]}
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sshpass -p $PASSWORD ssh-copy-id -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ssh/${hosts[i]} $USERNAME@${hosts_ips[i]}
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kubectl create secret generic ${hosts[i]} --from-literal=username=$USERNAME --from-file=ssh_private_key=ssh/${hosts[i]}
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kubectl annotate node ${hosts[i]} secret=${hosts[i]}
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done
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